Page summary

https://stf.xelta.ai/ai-studio/xelta-prism/result

Tested 2026-09-08 13:08:43 using Chrome 150.0.7871.46 (runtime settings)

SummaryWaterfallMetricsRenderingCoachPageXrayCPUThird party

This page is fast to paint, visually stable and follows best practices, but a little janky to interact with and weak on user privacy.

73 / 100
Coach overall
79 / 100
Performance
91 / 100
Best practice
60 / 100
Privacy

How it loaded →

0 → 5.167 s · median run
Frame at 0 ms
start
Frame at 1300 ms
Largest paint1.300 s
Frame at 1900 ms
1.900 s
Frame at 2600 ms
2.600 s
Frame at 3200 ms
3.200 s
Frame at 5200 ms
Complete5.200 s
700 ms
First Visual Change
1.015 s
Speed Index
1.033 s
Visual Complete 85%
5.167 s
Last Visual Change
TTFB520 msLCP1.032 sTBT341 msCLS0.06

What to act on · top recommendations

Avoid using Google Tag Manager.

0 / 100

The page is using Google Tag Manager, this is a performance risk since non-tech users can add JavaScript to your page.

Avoid CPU Long Tasks

0 / 100

The page has 8 CPU long tasks with the total of 883 ms. The total blocking time is 341 ms and 2 long tasks before first contentful paint with total time of 242 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your long tasks.

Avoid too many fonts

0 / 100

The page has 10 font requests. Do you really need them? What value does the fonts give the user?

Google Web Vitals

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Time To First Byte (TTFB)520 ms520 ms520 ms520 ms
Largest Contentful Paint (LCP)1.032 s1.032 s1.032 s1.032 s
Cumulative Layout Shift (CLS)0.0580.0580.0580.058

Visual Metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First visual change700 ms700 ms700 ms700 ms
Last visual change5.167 s5.167 s5.167 s5.167 s
Speed index1.015 s1.015 s1.015 s1.015 s
Visual readiness4.467 s4.467 s4.467 s4.467 s
Visual complete 851.033 s1.033 s1.033 s1.033 s
Visual complete 952.433 s2.433 s2.433 s2.433 s
Visual complete 992.600 s2.600 s2.600 s2.600 s

CPU

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Total Blocking Time341 ms341 ms341 ms341 ms
Max Potential FID167 ms167 ms167 ms167 ms
CPU long tasks 8888
CPU last long task happens at1.945 s1.945 s1.945 s1.945 s

More metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First paint1.032 s1.032 s1.032 s1.032 s
Load event end869 ms869 ms869 ms869 ms

Waterfall

Run 1 SpeedIndex median

First paintFCPLCPDOMContentLoadedDOM interactiveLoadRender-blockingRedirectError

Rendering

Run 1 · median
0.000 s
0s1s2s3s4s5s

The red band on the timeline marks when the main thread was busy with long tasks: moments when the page could not paint or respond, however the video looks.

Download video

Filmstrip

34 frames

Use --filmstrip.showAll to show all filmstrips.

Frame at 0 ms
0 ms
0 %
Frame at 700 ms
700 ms
52 %
Frame at 800 ms
800 ms
52 %
Frame at 900 ms
900 ms
52 %
Frame at 1.000 s
1.000 s
52 %
Frame at 1.100 s
1.100 s
91 %
Frame at 1.200 s
1.200 s
91 %
Frame at 1.300 s
1.300 s
91 %
Frame at 1.400 s
1.400 s
91 %
Frame at 1.500 s
1.500 s
91 %
Frame at 1.600 s
1.600 s
91 %
Frame at 1.700 s
1.700 s
91 %
Frame at 1.800 s
1.800 s
91 %
Frame at 1.900 s
1.900 s
91 %
Frame at 2.000 s
2.000 s
91 %
Frame at 2.100 s
2.100 s
91 %
Frame at 2.200 s
2.200 s
91 %
Frame at 2.300 s
2.300 s
91 %
Frame at 2.400 s
2.400 s
94 %
Frame at 2.500 s
2.500 s
97 %
Frame at 2.600 s
2.600 s
99 %
Frame at 2.700 s
2.700 s
99 %
Frame at 2.800 s
2.800 s
99 %
Frame at 2.900 s
2.900 s
99 %
Frame at 3.000 s
3.000 s
99 %
Frame at 3.100 s
3.100 s
99 %
Frame at 3.200 s
3.200 s
99 %
Frame at 3.300 s
3.300 s
99 %
Frame at 3.400 s
3.400 s
99 %
Frame at 3.500 s
3.500 s
99 %
Frame at 3.600 s
3.600 s
99 %
Frame at 3.700 s
3.700 s
99 %
Frame at 3.800 s
3.800 s
99 %
Frame at 5.200 s
5.200 s
100 %

Click a frame to seek the video to that moment. The dot marks frames where the page changed visually.

Why was rendering delayed?

Rendering was not meaningfully delayed. First paint landed at 1.032 s on a 520 ms first byte, with no render-blocking requests: the ~337 ms after the document is style and layout work.

Want to see how much CSS style-recalculation work delayed FCP and LCP, plus CPU long tasks? Run with --cpu.

Render blocking requests

0 requests

Blocking requests delay both paints: the browser renders nothing until they arrive, so they push First Contentful Paint and everything after it, including the largest paint (LCP). Requests that block the parser inside the body stall everything after them in the document. Load JavaScript with defer or async, and keep non-critical CSS off the critical path with media attributes. Bars show when each request loaded on a clock that runs to the last paint; the gap after the bars is style and layout work. Web fonts are context, not blockers: text renders invisible or in a fallback face while they load, so a font finishing after a paint is the classic reason text changed late.

None. Nothing except the document itself blocked rendering.

RequestWhen it loadedTransferDownload
document
stf.xelta.ai · TTFB 520 ms
695 ms
16.0 KB693 ms
web font · stf.xelta.ai
85 ms
64.8 KB85 ms
web font · stf.xelta.ai
85 ms
35.2 KB85 ms
web font · stf.xelta.ai
84 ms
8.2 KB84 ms
0258 ms516 msFCP · LCP 1.032 s

Coach

The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on privacy and best practices. Tested using Coach-core version 9.2.1.

Performance advice

79
3 errors9 warnings3 info
warn(0)Avoid using Google Tag Manager.googleTagManager

The page is using Google Tag Manager, this is a performance risk since non-tech users can add JavaScript to your page.

Google Tag Manager makes it possible for non tech users to add scripts to your page that will downgrade performance.

warn(0)Avoid CPU Long TaskslongTasks

The page has 8 CPU long tasks with the total of 883 ms. The total blocking time is 341 ms and 2 long tasks before first contentful paint with total time of 242 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your long tasks.

Long CPU tasks locks the thread. To the user this is commonly visible as a "locked up" page where the browser is unable to respond to user input; this is a major source of bad user experience on the web today. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. To debug you should use the Chrome timeline log and drag/drop it into devtools or use Firefox Geckoprofiler.

Offenders
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
infoAvoid too many fontsfewFonts
warn(0)Total JavaScript size shouldn't be too bigjavascriptSize

The total JavaScript transfer size is 1.5 MB and the uncompressed size is 5.1 MB. This is totally crazy! There is really room for improvement here.

A lot of JavaScript often means you are downloading more than you need. How complex is the page and what can the user do on the page? Do you use multiple JavaScript frameworks?

Offenders
URLTransferContent
https://stf.xelta.ai/_next/static/chunks/3uwr3jqy3726u.js6.7 KB23.8 KB
https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP185.8 KB564.5 KB
https://stf.xelta.ai/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js4.4 KB12.0 KB
https://static.cloudflareinsights.com/beacon.min.js/v31edd6df95cf4e85bb4c19e7a9bdbcba178836298749510.1 KB29.6 KB
https://stf.xelta.ai/_next/static/chunks/03zjmohdh3e2g.js1.9 KB2.7 KB
https://stf.xelta.ai/_next/static/chunks/40a97zhalnzwf.js15.0 KB48.9 KB
https://stf.xelta.ai/_next/static/chunks/28nr-518sofpd.js79.0 KB307.9 KB
https://stf.xelta.ai/_next/static/chunks/2npyrcb19f7_z.js113.3 KB552.0 KB
https://stf.xelta.ai/_next/static/chunks/2t3uzb5a4vhmi.js4.6 KB71.6 KB
https://stf.xelta.ai/_next/static/chunks/0qyja2b6pvkmf.js9.5 KB28.2 KB
https://stf.xelta.ai/_next/static/chunks/2mcuj1ixlbdrl.js6.2 KB17.7 KB
https://stf.xelta.ai/_next/static/chunks/1wy3-ofr4afiu.js3.1 KB6.4 KB
https://stf.xelta.ai/_next/static/chunks/18_n__63mzo4i.js33.9 KB105.1 KB
https://stf.xelta.ai/_next/static/chunks/09xqj9p9n0t1m.js12.3 KB33.6 KB
https://stf.xelta.ai/_next/static/chunks/0kpe-264ent3a.js19.4 KB62.0 KB
https://stf.xelta.ai/_next/static/chunks/1n5pi6a27b-2u.js10.0 KB27.9 KB
https://stf.xelta.ai/_next/static/chunks/1s27zdch4c1sr.js15.8 KB63.5 KB
https://stf.xelta.ai/_next/static/chunks/40a5fbr-aqmo-.js8.8 KB30.0 KB
https://stf.xelta.ai/_next/static/chunks/01mcql2bdo3rb.js43.6 KB140.5 KB
https://stf.xelta.ai/_next/static/chunks/2qjn0reedr8ae.js42.4 KB141.9 KB
https://stf.xelta.ai/_next/static/chunks/0i254zfoitftd.js23.3 KB76.3 KB
https://stf.xelta.ai/_next/static/chunks/15_md7thjtf9y.js15.0 KB44.6 KB
https://stf.xelta.ai/_next/static/chunks/22y7ibv_77ort.js7.8 KB20.5 KB
https://stf.xelta.ai/_next/static/chunks/0hr8xag69xxbh.js7.6 KB20.9 KB
https://stf.xelta.ai/_next/static/chunks/0ohf9i13i0cs4.js10.0 KB25.8 KB
https://stf.xelta.ai/_next/static/chunks/1kgjkq7dn9_ak.js16.0 KB52.7 KB
https://stf.xelta.ai/_next/static/chunks/34w0w3r6g1nvx.js9.8 KB27.4 KB
https://stf.xelta.ai/_next/static/chunks/0qlw6oi1_u0t2.js7.4 KB30.9 KB
https://stf.xelta.ai/_next/static/chunks/3tj8fi972co-_.js10.7 KB37.2 KB
https://stf.xelta.ai/_next/static/chunks/0t4fo6dytm65n.js9.0 KB23.8 KB
https://stf.xelta.ai/_next/static/chunks/turbopack-24rje7f4aq8u8.js6.6 KB19.5 KB
https://stf.xelta.ai/_next/static/chunks/3zfboem_wpsry.js10.2 KB45.5 KB
https://stf.xelta.ai/_next/static/chunks/0j62xb9va9k4c.js70.7 KB225.2 KB
https://stf.xelta.ai/_next/static/chunks/15vtan82er6c4.js41.7 KB148.8 KB
https://stf.xelta.ai/_next/static/chunks/0b12ipf9obn1h.js11.5 KB33.2 KB
https://www.googletagmanager.com/gtm.js?id=GTM-5XNS5NQ2114.5 KB323.4 KB
https://connect.facebook.net/en_US/fbevents.js109.0 KB405.9 KB
https://stf.xelta.ai/_next/static/chunks/18tfuc5o_hr--.js77.2 KB253.9 KB
https://stf.xelta.ai/_next/static/chunks/2ytql659azcq2.js2.0 KB2.9 KB
https://connect.facebook.net/signals/config/1123404090023729.../1123404090023729134.2 KB475.2 KB
https://stf.xelta.ai/_next/static/chunks/3c1qhb4nq6dod.js2.9 KB6.2 KB
https://stf.xelta.ai/_next/static/chunks/450dvigt89kes.js34.9 KB106.7 KB
https://stf.xelta.ai/_next/static/chunks/3f9z407v9nlgc.js1.7 KB1.9 KB
https://stf.xelta.ai/_next/static/chunks/0kxlndj0drg8y.js9.8 KB32.4 KB
https://stf.xelta.ai/_next/static/chunks/0pie_tozoy1oa.js10.1 KB31.2 KB
https://stf.xelta.ai/_next/static/chunks/2fwbq4un93c_i.js46.9 KB207.4 KB
warn(40)Avoid extra requests by setting cache headerscacheHeaders

The page has 6 requests that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 8.4 kB the next access.

The easiest way to make your page fast is to avoid doing requests to the server. Setting a cache header on your server response will tell the browser that it doesn't need to download the asset again during the configured cache time! Always try to set a cache time if the content doesn't change for every request.

Offenders
warn(50)Total CSS size shouldn't be too bigcssSize

The total CSS transfer size is 92.9 kB and uncompressed size is 686.7 kB. That is big and the CSS could most probably be smaller.

Delivering a massive amount of CSS to the browser is not the best thing you can do, because it means more work for the browser when parsing the CSS against the HTML and that makes the rendering slower. Try to send only the CSS that is used on that page. And make sure to remove CSS rules when they aren't used anymore.

Offenders
URLTransferContent
https://stf.xelta.ai/_next/static/chunks/2d1gbxt7sbqx3.css85.0 KB632.6 KB
https://stf.xelta.ai/_next/static/chunks/2d9-f2l59svdc.css1.1 KB2.0 KB
https://stf.xelta.ai/_next/static/chunks/178pt4rau30r7.css3.7 KB34.8 KB
https://fonts.googleapis.com/css2?family=Anton&display=swap923 B1.2 KB
warn(50)Total image size shouldn't be too bigimageSize

The page total image size is 874.4 kB. It's really big. Is the page using the right format for the images? Can they be lazy loaded? Are they compressed as good as they can be? Make them smaller by using https://imageoptim.com/.

Avoid having too many large images on the page. The images will not affect the first paint of the page, but it will eat bandwidth for the user.

error(50)Avoid missing and error requestsresponseOk

The page has 5 error responses. The page has 3 responses with code 401. The page has 2 responses with code 404.

Your page should never request assets that return a 400 or 500 error. These requests are never cached. If that happens something is broken. Please fix it.

Offenders
warn(60)Don't use private headers on static contentprivateAssets

The page has 5 requests with private headers. The main page has a private header. It could be right in some cases where the user can be logged in and served specific content. But if your asset is static it should never be private. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone.

If you set private headers on content, that means that the content are specific for that user. Static content should be able to be cached and used by everyone. Avoid setting the cache header to private.

Offenders
warn(80)Don't scale images in the browseravoidScalingImages

The page has 2 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.

It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.

Offenders
infoLong cache headers is goodcacheHeadersLong
error(90)Avoid Frontend single point of failuresspof

The page has 1 request inside of the head that can cause a SPOF (single point of failure). Load them asynchronously or move them outside of the document head.

A page can be stopped from loading in the browser if a single JavaScript, CSS, and in some cases a font, couldn't be fetched or is loading really slowly (the white screen of death). That is a scenario you really want to avoid. Never load 3rd-party components synchronously inside of the head tag.

Offenders
infoMake each CSS response smalloptimalCssSize

https://stf.xelta.ai/_next/static/chunks/2d1gbxt7sbqx3.css size is 87 kB (87048) and that is bigger than the limit of 25 kB. Try to keep each CSS response under 25 kB.

Render-blocking CSS holds up the first paint until it has fully downloaded, parsed and applied, so smaller CSS files mean a faster start. Split your CSS into a small critical bundle inlined or eagerly loaded, with the rest lazy-loaded.

Offenders
URLTransferContent
https://stf.xelta.ai/_next/static/chunks/2d1gbxt7sbqx3.css85.0 KB632.6 KB
warn(95)Inline CSS for faster first renderinlineCss

The page has both inline CSS and CSS requests even though it uses a HTTP/2-ish connection. If you have many users on slow connections, it can be better to only inline the CSS. Run your own tests and check the waterfall graph to see what happens.

In the early days of the Internet, inlining CSS was one of the ugliest things you can do. That has changed if you want your page to start rendering fast for your user. Always inline the critical CSS when you use HTTP/1 and HTTP/2 (avoid doing CSS requests that block rendering) and lazy load and cache the rest of the CSS. It is a little more complicated when using HTTP/2. Does your server support HTTP push? Then maybe that can help. Do you have a lot of users on a slow connection and are serving large chunks of HTML? Then it could be better to use the inline technique, becasue some servers always prioritize HTML content over CSS so the user needs to download the HTML first, before the CSS is downloaded.

error(97)Avoid using incorrect mime typesmimeTypes

The page has 3 misconfigured mime types.

It's not a great idea to let browsers guess content types (content sniffing), in some cases it can actually be a security risk.

Offenders

Best practice advice

91
1 warning2 info
infoAvoid unnecessary headersunnecessaryHeaders

There are 1 response that sets a p3p header. There are 5 responses that sets both a max-age and expires header. There are 4 responses that sets a pragma no-cache header (that is a request header). There are 83 responses that sets a server header.

Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want.

Offenders
warn(50)Avoid too many third party requeststhirdParty

The page do 20% requests to third party domains (17 requests and 570 kB). First party is 68 requests and 2.2 MB. The regex .*xelta.* was used to calculate first/third party requests.

Do not load most of your content from third party URLs.

infoDo not send too long headerslongHeaders

https://stf.xelta.ai...elta-prism/result has a header link that is 1429 characters long. https://stf.xelta.ai...h2vc0w-r-ll.woff2 has a header report-to that is 621 characters long. https://connect.face...en_US/fbevents.js has a header content-security-policy that is 1344 characters long. https://connect.face...en_US/fbevents.js has a header permissions-policy that is 874 characters long. https://connect.face.../1123404090023729 has a header content-security-policy that is 1344 characters long. https://connect.face.../1123404090023729 has a header permissions-policy that is 874 characters long.

Do not send response headers that are too long.

Offenders

Privacy advice

60
1 error7 warnings2 info
warn(0)Avoid using Google Analyticsga

The page is using Google Analytics meaning you share your users private information with Google. You should use analytics that care about user privacy, something like https://matomo.org.

Google Analytics share private user information with Google that your user hasn't agreed on sharing.

warn(0)Avoid embedding services from surveillance capitalist companiessurveillance

The page embeds 4 resources from companies that profit from user surveillance. Consider privacy-respecting alternatives.

Embedding scripts or iframes from companies whose business model is surveillance capitalism (Google, Facebook, etc.) leaks detailed user data on every page view, often before the user has had a chance to consent. See https://en.wikipedia.org/wiki/Surveillance_capitalism for background. Prefer privacy-respecting alternatives where possible.

Offenders
warn(0)Use a strict Content-Security-Policy header to mitigate cross-site scripting (XSS) attacks.contentSecurityPolicyHeader

Set a Content-Security-Policy header to mitigate cross-site scripting attacks. You can start with a Content-Security-Policy-Report-Only header, which only reports violations rather than blocking them.

A Content-Security-Policy response header tells the browser which sources of script, style, and other content are allowed. The most effective form is a strict CSP using nonces or hashes together with strict-dynamic; the worst is a missing header, with unsafe-inline and unsafe-eval close behind. https://web.dev/articles/strict-csp

Offenders
infoSet a Cross-Origin-Embedder-Policy header so cross-origin subresources opt in to being embedded.crossOriginEmbedderPolicyHeader

Set a Cross-Origin-Embedder-Policy header (typically require-corp or credentialless) on the document response to control cross-origin embedding.

Cross-Origin-Embedder-Policy (COEP) makes the page refuse to load cross-origin subresources unless they explicitly opt in via CORP or CORS. Together with Cross-Origin-Opener-Policy it puts the page in a cross-origin isolated context, which mitigates cross-window side-channel attacks (Spectre) and unlocks high-resolution timers and SharedArrayBuffer. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy

Offenders
warn(0)Set a Cross-Origin-Opener-Policy header to isolate the page from cross-origin windows.crossOriginOpenerPolicyHeader

Set a Cross-Origin-Opener-Policy header (typically same-origin) on the document response to isolate the page from cross-origin windows.

Cross-Origin-Opener-Policy (COOP) lets a page sever its window-group ties to cross-origin documents that opened it or that it opens. Together with Cross-Origin-Embedder-Policy it puts the page in a cross-origin isolated context, which mitigates cross-window side-channel attacks (Spectre) and unlocks high-resolution timers and SharedArrayBuffer. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy

Offenders
infoSet a Cross-Origin-Resource-Policy header to limit who may embed the page.crossOriginResourcePolicyHeader

Set a Cross-Origin-Resource-Policy header (same-origin, same-site or cross-origin) on the document response to limit who may embed it.

Cross-Origin-Resource-Policy (CORP) is a per-response opt-in that tells the browser which origins are allowed to embed the resource. It blocks cross-origin or cross-site no-cors embedding (img, script, iframe, etc.) and is one of the building blocks of cross-origin isolation. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Resource-Policy

Offenders
error(0)Serve all responses on HTTPS (when you are on HTTPS)mixedContent

You need to serve all responses on HTTPS. The page have 2 responses using HTTP. That is a privacy and security risk.

You need to make sure that if you are on HTTPS, all responses are on HTTPS so that the content served are secured.

Offenders
warn(0)Set a Permissions-Policy header to control which browser features the page can use.permissionsPolicyHeader

Set a Permissions-Policy header to control which browser features the page can use.

The Permissions-Policy response header (the successor to Feature-Policy) lets a site explicitly opt in or out of powerful browser features such as camera, microphone, geolocation, payment and clipboard. Setting a strict policy reduces the attack surface and limits what embedded third parties can do. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Permissions-Policy

Offenders
warn(0)Do not share user data with third parties.thirdPartyPrivacy

The page has 13% requests that are 3rd party (11 requests with a size of 569.2 kB). The page also have request to companies that harvest data from users and do not respect users privacy (see https://en.wikipedia.org/wiki/Surveillance_capitalism). The page do 10 survelliance requests and uses 6 survelliance tools. The page do 10 surveillance requests and uses 6 surveillance tools. The page do 2 tag-manager requests and uses 1 tag-manager tool. The page do 2 utility requests and uses 2 utility tools. The page do 3 social requests and uses 1 social tool. The page do 2 analytics requests and uses 1 analytics tool. The page do 1 ad request and uses 1 ad tool.

Using third party requests shares user information with that third party. Please avoid that! The project https://github.com/patrickhulce/third-party-web is used to categorize first/third party requests.

Offenders
warn(90)Avoid third party cookies that is used to track the user.thirdPartyCookies

The page sets 1 third party cookie.

Third party cookies are used to track the user. They are automatically blocked in Safari and Firefox.

Offenders
  • .facebook.com

Page info

A snapshot of what the browser actually built for this page: the document, how big and deep the DOM tree is and what it kept in storage. Big, deep trees are slower to style and lay out, so the counts Chrome warns about carry a flag.

Page info

Document

What the page says it is and how large it rendered.

TitleVideo Lens - One Video, Infinite Formats | Xelta AI StudioThe document title, shown in the browser tab and used by search results.
Layout viewport1355 × 623 pxThe width the page laid out at, and the full height of the rendered document.

DOM structure

How much markup the browser has to build, style and lay out.

DOM elements318Total HTML elements. Fewer means less for the browser to style, lay out and paint.
Avg DOM depth7How deeply elements are nested on average.
Max DOM depth17The deepest nesting on the page. Deep branches cost more style recalculation.
Iframes0No embedded documents on this page.
Script tags67Number of script elements. More scripts usually means more main-thread work.

Storage and connection

What the page stored on the client, and the network it was tested on.

Local storage725 BData the page saved in localStorage, kept across visits.
Session storage412 BData kept in sessionStorage for this tab session only.
Connection type4GWhat the Network Information API reported for the test connection.

Resource hints

4 hints
dns-prefetch
  • https://media.xelta.ai/
preconnect
  • https://fonts.googleapis.com/
  • https://fonts.gstatic.com/
  • https://media.xelta.ai/

Technologies used to build the page

Data collected using Coach-core version 9.2.1. With updated code from Webappanalyzer 2026-05-04. Use --browsertime.firefox.includeResponseBodies html or --browsertime.chrome.includeResponseBodies html to help Wappalyzer find more information about technologies used.

Detected technologies

8 technologies

Third-party tools

19 tools

Data collected using Third Party Web version 0.29.2.

Cdn
  • Google Fonts
Survelliance
  • Google Fonts
  • Google Tag Manager
  • Facebook
  • Google Analytics
  • Google/Doubleclick Ads
  • Other Google APIs/SDKs
Surveillance
  • Google Fonts
  • Google Tag Manager
  • Facebook
  • Google Analytics
  • Google/Doubleclick Ads
  • Other Google APIs/SDKs
Tag-manager
  • Google Tag Manager
Utility
  • Cloudflare
  • Other Google APIs/SDKs
Social
  • Facebook
Analytics
  • Google Analytics
Ad
  • Google/Doubleclick Ads

Data from run 1

Visual Metrics

Visual milestones

all times from navigation start
Speed Index1.01 show quickly the page looked done
First Visual Change0.70 sfirst paint reaches the screen
Last Visual Change5.17 sscreen stops changing · 4.47 s after first
≥85%
≥99%
0.70 sFirst Visual Change
1.03 sVisual Complete 85%
2.43 sVisual Complete 95%
2.60 sVisual Complete 99%
Last Visual Change5.17 s
Visual Readiness4.47 s· first to last change
01.0 s2.0 s3.0 s4.0 s
Content milestones
Perception index
Visual progress
Visual progress at 0 s0.0s
Visual progress at 1.1 s1.1s
Visual progress at 1.5 s1.5s
Visual progress at 2 s2.0s
Visual progress at 2.5 s2.5s
Visual progress at 3 s3.0s
Visual progress at 3.4 s3.4s
Visual progress at 5.2 s5.2s
FCP1.03s
LCP1.03s
VC851.03s
Long tasks
0.0s1.0s2.1s3.1s4.2s5.2s

Google Web Vitals

from run 1
520 msTTFB
Good
341 msTBT
Needs improvement

Largest Contentful Paint

When the page main content is rendered, collected via the Largest Contentful Paint API. Read more about Largest Contentful Paint.

1.032 sLCP render time

Phase breakdown

  • TTFB520 ms
  • Resource load delay0 ms
  • Resource load duration0 ms
  • Element render delay512 ms

Element

Size (w × h)
5745
Load time
0 ms
LCP

The LCP element is highlighted in the screenshot. If nothing is highlighted the element was removed before the screenshot or the LCP API couldn't find it.

Cumulative Layout Shift

How much the page's content shifts as it loads, collected via the Cumulative Layout Shift API.

0.058cumulative layout shift score

Elements that shifted

Sorted by individual shift score (higher = bigger shift). The top entries usually account for most of the page's CLS.

  • #10.009<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #20.008<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #30.008<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #40.007<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #50.005<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #60.005<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #70.005<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #80.004<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #90.003<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #100.003<div class="flex-1 flex min-h-screen relative bg-black border-t border-l border-[#222] overflow-x-hidden transition-all duration-300" style="margin-left: 180.18px;"></div>,<div class="hidden lg:block absolute top-0 -right-2 w-4 h-full cursor-col-resize z-[510] group-hover:bg-white/5 transition-colors" title="Drag to resize"></div>,<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > div:eq(2),body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(1),body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(0) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(2) > div:eq(0) > svg
  • #110.000<button class="fixed top-[8vh] -translate-y-1/2 z-[200] flex items-center justify-center h-[32px] bg-[#2A2A2A] border border-white/10 text-white hover:bg-[#FF7B4F] hover:border-[#FF7B4F] hover:scale-110 transition-all duration-300 shadow-[0_0_15px_rgba(0,0,0,0.5)] w-6 rounded-full" style="left: calc(168.18px);" title="Close Sidebar"></button>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-chevron-down text-[#555] transition-transform duration-200 -rotate-90"></svg>
    body > div#app-root > div:eq(1) > div > button,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(3) > div:eq(0) > svg,body > div#app-root > div:eq(1) > div > div:eq(1) > div:eq(0) > div > div > div:eq(1) > div:eq(1) > div:eq(0) > svg
Layout shift

Elements that shifted by more than 0.01 are highlighted in the screenshot. If an element shifted outside the viewport, it won't appear here. Check the video or filmstrip to see the shift.

Browser Metrics

Navigation Timing
Extra timings

Server timings

Timing data the server chose to expose through Server-Timing response headers on the main document — typically backend time, cache status or experiment flags.

Server timings

3 entries
NameDurationDescription
cfCacheStatus0 msDYNAMIC
cfEdge6 ms–
cfOrigin446 ms–

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

There are no custom extra metrics from scripting.

PageXray

How the page is built.

HTTP versionHTTP/2.0
Total requests85
Total domains15
Transfer size2.6 MB
Content size6.7 MB
Missing compression0
Cookies41 third-party

Main document

status 200 · 0 redirects

https://stf.xelta.ai/ai-studio/xelta-prism/result

HeaderValue
alt-svch3=":443"; ma=86400
cache-controlprivate, no-cache, no-store, max-age=0, must-revalidate
cf-cache-statusDYNAMIC
cf-raya37e2f05db55a80c-DEL
content-encodingbr
content-typetext/html; charset=utf-8
dateTue, 08 Sep 2026 13:08:45 GMT
expect-ctmax-age=86400, enforce
link</_next/static/media/47fe1b7cd6e6ed85-s.p.3bh2vc0w-r-ll.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/83afe278b6a6bb3c-s.p.2bn3s6zvc0dyp.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/8dfd6563338cbf38-s.p.2uos8jt9rp249.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/8e6fa89aa22d24ec-s.p.2o7m9ogm38dql.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/9d0c71fa164043fa-s.p.2snziqcncuet5.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/a218039a3287bcfd-s.p.43zbiuwnnoiok.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/c875c6f5d3e977ac-s.p.1h18_wedhzk4h.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/ce62453a442c7f35-s.p.0a0h245ktd4x0.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/e2334d715941921e-s.p.3o_v2fun1jzxk.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/media/e8f2fbee2754df70-s.p.1dqa_6e_ad4sj.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2", </_next/static/chunks/2d1gbxt7sbqx3.css>; rel=preload; as="style", </_next/static/chunks/2d9-f2l59svdc.css>; rel=preload; as="style", </_next/static/chunks/178pt4rau30r7.css>; rel=preload; as="style"
nel{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
referrer-policysame-origin strict-origin-when-cross-origin
report-to{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=np4gcTOVzqncGlHDykoBVZIjfDxRhtXJAnLONh9aiELZUXRY147%2FxAYJLNRu1YIi2WVE88jDYNbXspj9CQeWF2cz0gXCNqCLHJDX%2BN5zrWRR1sb2IvkfQPgL8ZlyFA%3D%3D"}]}
servercloudflare
server-timingcfCacheStatus;desc="DYNAMIC" cfEdge;dur=6,cfOrigin;dur=446
speculation-rules"/cdn-cgi/speculation"
strict-transport-securitymax-age=31536000; includeSubDomains; preload
varyrsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept-Encoding
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block

Response codes

200
7487.1%
202
11.2%
204
55.9%
401
33.5%
404
22.4%

Largest assets on the page (by transfer size)

Top 20 of 85

Requests and sizes per content type

9 types

Transfer size2.6 MB

  • javascript52.8%
  • image31.7%
  • font11.0%
  • css3.4%
  • html0.59%
  • favicon0.33%
  • json0.10%
  • plain0.07%
  • other0.02%

Content size6.7 MB

  • javascript72.1%
  • image12.4%
  • css9.8%
  • font4.3%
  • html1.3%
  • favicon0.12%
  • json0.02%
  • other0.00%
  • plain0.00%

Requests80

  • javascript57.5%
  • font12.5%
  • plain8.8%
  • css5.0%
  • image5.0%
  • json5.0%
  • other3.8%
  • html1.3%
  • favicon1.3%
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b16.0 KB91.1 KB1
css0 b90.7 KB670.6 KB4
javascript0 b1.4 MB4.8 MB46
image0 b856.6 KB853.9 KB4
font0 b297.0 KB292.4 KB10
favicon0 b8.9 KB8.3 KB1
other0 b461 B151 B3
json0 b2.8 KB1.4 KB4
plain0 b1.8 KB2 B7
Total0 b2.6 MB6.7 MB80

Data per domain

15 domains
DomainTotal download timeTransfer SizeContent SizeRequests
stf.xelta.ai9.299 s2.1 MB4.9 MB63
fonts.googleapis.com187 ms923 B1.2 KB1
www.googletagmanager.com621 ms300.3 KB888.0 KB2
static.cloudflareinsights.com111 ms10.1 KB29.6 KB1
connect.facebook.net340 ms243.2 KB881.1 KB2
stb.xelta.ai458 ms2.2 KB118 B4
analytics.google.com238 msN/A0 b2
stats.g.doubleclick.net212 ms555 B0 b1
www.google.co.in166 ms408 B42 B1
us-assets.i.posthog.com1.162 s69 B0 b2
cms-b.stg2.xelta.ai871 ms595 B43 B1
mpc-prod-27-s6uit34pua-uk.a.run.app421 msN/A0 b1
www.facebook.com154 ms424 B0 b1
us.i.posthog.com1.147 s496 B174 B1
telemetry.matchbestsoftware.online188 ms286 B2 B2

Expires & last-modified statistics

typeminmedianmax
Expires0 seconds1 year1 year
Last modified41 minutes48 minutes6 days

Requests loaded after onLoad event

33 requests

Includes requests done after load event end.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript543.2 KB11
image856.6 KB4
font0 b0
favicon8.9 KB1
plain1.8 KB7
other0 b2
json1.5 KB3
Total1.4 MB33

Requests loaded after onContentLoad

33 requests

Includes requests done after DOM content loaded.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript543.2 KB11
image856.6 KB4
font0 b0
favicon8.9 KB1
plain1.8 KB7
other0 b2
json1.5 KB3
Total1.4 MB33

CPU

Get deeper CPU insight with one extra run
Run with --enableProfileRun to see where main-thread time went, blocking time and CPU cost per script, module and function, forced reflows and frame stability. The data is collected in one extra run, so the timing metrics of your measured runs stay untouched.

Long tasks

Tasks ≥ 50 ms blocking the main thread, collected via the Long Task API.

TBT341 ms
Max potential input delay167 ms
Total long tasks8
Total time883 ms
Last task at1.945 s
Before first paint242 ms2 tasks
Before FCP242 ms2 tasks
Before LCP242 ms2 tasks
After load883 ms8 tasks

Long Animation Frames

A long animation frame (LOAF) is a frame that took ≥ 50 ms from input to the next paint. The part beyond the threshold is blocking time, the number that hurts Interaction to Next Paint and Total Blocking Time. Break long tasks up (scheduler.yield(), smaller chunks) or move the work off the main thread. Read more about the Long Animation Frames API.

Long animation frames10every frame ≥ 50 ms
Blocking time549.9 msacross all long frames — what hurts INP and TBT
Forced style & layout0.1 msscripts reading layout mid-frame
Blocking before LCP165.6 msdelaying the largest paint — fix these first
Blocking after load484.1 msafter the load event — didn't delay page load

What to fix first

ScriptFramesTime runningBlocking (share by run time)Forced style & layoutTriggered by
11234040900237293rd party1167.6 ms117.4 ms–script tag
0j62xb9va9k4c.js3179.3 ms112.3 ms–script tag, event handler
fbevents.js3rd party1139 ms89.1 ms–script tag
js3rd party3216.8 ms89 ms0.1 msscript tag, timer or animation callback
18tfuc5o_hr--.js176.6 ms21 ms–script tag
rocket-loader.min.js112.6 ms12.6 ms–event handler
gtm.js3rd party161.2 ms11.2 ms–script tag
v31edd6df95cf4e85bb4c19e7a9bdbcba17883629874953rd party111.1 ms11.1 ms–module script

A frame's blocking time is split between its scripts by their share of the frame's work, capped at each script's own run time — blocking from work no script owns (HTML parsing, browser internals) stays unattributed. The per-script blocking view below uses the same attribution.

Long animation frame #1 · 168.8 msat 1.945 s · after load
blocking 118 ms
  • Scripts & other work168.4 ms
  • Animation callbacks0 ms
  • Style & layout0.4 ms
  • Render0 ms
1 script ran during this frame
Ran for
167.6 ms
How it started
script tag
Long animation frame #2 · 150.1 msat 1.011 s · before LCP
blocking 99.8 ms
  • Scripts & other work149.2 ms
  • Animation callbacks0 ms
  • Style & layout0.9 ms
  • Render0 ms
1 script ran during this frame
Ran for
147.5 ms
How it started
script tag
Long animation frame #3 · 139.2 msat 1.707 s · after load
blocking 89.2 ms
  • Scripts & other work139.2 ms
  • Animation callbacks0 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame
fbevents.js3rd party
Ran for
139 ms
How it started
script tag
Long animation frame #4 · 131.1 msat 832.7 ms · before LCP
blocking 65.8 ms
  • Scripts & other work42.6 ms
  • Animation callbacks0.9 ms
  • Style & layout87.6 ms
  • Render0 ms
2 scripts ran during this frame
Ran for
11.1 ms
How it started
module script
Ran for
12.6 ms
Started by
DOMWindow.onload
How it started
event handler
Position in source
character 8077 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Long animation frame #5 · 133.9 msat 1.330 s · after load
blocking 62.7 ms
  • Scripts & other work132.8 ms
  • Animation callbacks1 ms
  • Style & layout0.1 ms
  • Render0 ms
2 scripts ran during this frame
Ran for
19 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 7856 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
js3rd party
Ran for
111.3 ms
How it started
script tag
Long animation frame #6 · 89.6 msat 1.194 s · after load
blocking 39.6 ms
  • Scripts & other work89.6 ms
  • Animation callbacks0 ms
  • Style & layout0 ms
  • Render0 ms

The browser did not report which script was responsible for this frame — typically its own style/layout work, or a cross-origin script it will not name.

Long animation frame #7 · 101.6 msat 1.466 s · after load
blocking 36.6 ms
  • Scripts & other work101.3 ms
  • Animation callbacks0.3 ms
  • Style & layout0 ms
  • Render0 ms
2 scripts ran during this frame
Ran for
12.8 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 7856 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
js3rd party
Ran for
86.2 ms
Started by
TimerHandler:setTimeout
How it started
timer or animation callback
Long animation frame #8 · 98.7 msat 1.577 s · after load
blocking 27 ms
  • Scripts & other work98.6 ms
  • Animation callbacks0.1 ms
  • Style & layout0 ms
  • Render0 ms
2 scripts ran during this frame · forced style & layout 0.1 ms
Ran for
76.6 ms
How it started
script tag
js3rd party
Ran for
19.3 ms
Forced style and layout
0.1 ms
Started by
TimerHandler:setTimeout
How it started
timer or animation callback
Long animation frame #9 · 61.2 msat 1.851 s · after load
blocking 11.2 ms
  • Scripts & other work61.2 ms
  • Animation callbacks0 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame
gtm.js3rd party
Ran for
61.2 ms
How it started
script tag

1 more long frame carried no blocking time (nothing ran past the 50 ms threshold) — long, but harmless to INP and TBT.

Blocking time per script (browser-reported)

How much each script blocked the main thread, derived from the Long Animation Frame API. Each frame's blocking time is split between its scripts by their share of the frame's work, capped at each script's own run time — blocking from work no script owns (HTML parsing, browser internals) is not attributed (older data credits the script that started the frame). The closest answer to "which script should I fix to improve TBT" the platform exposes.

Third party

Third party requests categorised by Third party web version 0.29.2.

Third-party requests21
Tools7
Categories7
Third-party cookies1

Categories

7 categories

Requests by category21

  • survelliance10 req · 6 tools47.6%
  • social3 req · 1 tool14.3%
  • tag-manager2 req · 1 tool9.5%
  • utility2 req · 2 tools9.5%
  • analytics2 req · 1 tool9.5%
  • cdn1 req · 1 tool4.8%
  • ad1 req · 1 tool4.8%

Third party requests and tools

7 categories
cdnGoogle Fonts1 requests · 1 tool
survellianceGoogle FontsGoogle Tag ManagerFacebook+ 3 more10 requests · 6 tools
tag-managerGoogle Tag Manager2 requests · 1 tool
utilityCloudflareOther Google APIs/SDKs2 requests · 2 tools
socialFacebook3 requests · 1 tool
analyticsGoogle Analytics2 requests · 1 tool
adGoogle/Doubleclick Ads1 requests · 1 tool

Unmatched third party domains

4 domains

Domains that didn't match any tool in Third party web. If you are sure they are third party domains, please do a PR to that project. You can also fine tune the list using --firstParty.

  • us-assets.i.posthog.com
  • mpc-prod-27-s6uit34pua-uk.a.run.app
  • us.i.posthog.com
  • telemetry.matchbestsoftware.online
Third party cookies1
.facebook.com1 cookie

First party vs third party

68 first · 17 third party

Transfer size2.6 MB

  • First party2.1 MB79.4%
  • Third party556.7 KB20.6%

Content size6.7 MB

  • First party4.9 MB73.8%
  • Third party1.8 MB26.2%

Requests85

  • First party6880.0%
  • Third party1720.0%

First party requests and sizes per content type

68 requests

Calculated using .*xelta.* (use --firstParty to configure).

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b16.0 KB91.1 KB1
css0 b89.8 KB669.4 KB3
javascript0 b872.4 KB3.1 MB41
image0 b856.2 KB853.8 KB3
font0 b297.0 KB292.4 KB10
favicon0 b8.9 KB8.3 KB1
other0 b461 B151 B3
json0 b2.8 KB1.4 KB3
plain0 b591 B0 b1
TotalN/A2.1 MB4.9 MB68

Third party requests and sizes per content type

17 requests
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b923 B1.2 KB1
javascript0 b553.6 KB1.8 MB5
image0 b408 B42 B1
font0 b0 b0 b0
favicon0 b0 b0 b0
plain0 b1.2 KB2 B6
json0 b0 b0 b1
TotalN/A556.7 KB1.8 MB17