Run 1 summary

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

Tested 2026-07-31 12:49:55 using Chrome 150.0.7871.186 (runtime settings)

SummaryWaterfallMetricsRenderingCoachPageXrayThird party

Summary

Google Web Vitals

62 msTTFB
1.696 sLargest Contentful Paint
0.029Cumulative Layout Shift
706 msTotal Blocking Time

Loading

860 msFirst Paint
7.385 sFully Loaded
248 msMax Potential FID

Page weight & requests

4.1 MBTotal transfer size
7.2 MBTotal content size
110Requests

CPU

15Long tasks
5.960 sLast long task at

Visual progress

333 msFirst Visual Change
1.784 sSpeed Index
1.733 sVisual Complete 85%
6.333 sVisual Complete 99%
7.633 sLast Visual Change
Screenshot
Run 1 · after page complete

Waterfall

First paintFCPLCPDOMContentLoadedDOM interactiveLoadRender-blockingRedirectError

Rendering

Run 1
0.000 s
0s2s4s6s8s

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

75 frames

Use --filmstrip.showAll to show all filmstrips.

Frame at 0 ms
0 ms
0 %
Frame at 300 ms
300 ms
0 %
Frame at 400 ms
400 ms
27 %
Frame at 500 ms
500 ms
27 %
Frame at 600 ms
600 ms
27 %
Frame at 700 ms
700 ms
27 %
Frame at 800 ms
800 ms
27 %
Frame at 900 ms
900 ms
27 %
Frame at 1.000 s
1.000 s
27 %
Frame at 1.100 s
1.100 s
27 %
Frame at 1.200 s
1.200 s
27 %
Frame at 1.300 s
1.300 s
27 %
Frame at 1.400 s
1.400 s
27 %
Frame at 1.600 s
1.600 s
27 %
Frame at 1.700 s
1.700 s
63 %
Frame at 1.800 s
1.800 s
85 %
Frame at 1.900 s
1.900 s
85 %
Frame at 2.000 s
2.000 s
85 %
Frame at 2.100 s
2.100 s
85 %
Frame at 2.200 s
2.200 s
85 %
Frame at 2.300 s
2.300 s
85 %
Frame at 2.400 s
2.400 s
85 %
Frame at 2.500 s
2.500 s
85 %
Frame at 2.600 s
2.600 s
85 %
Frame at 2.700 s
2.700 s
85 %
Frame at 2.800 s
2.800 s
85 %
Frame at 2.900 s
2.900 s
85 %
Frame at 3.000 s
3.000 s
85 %
Frame at 3.100 s
3.100 s
85 %
Frame at 3.200 s
3.200 s
85 %
Frame at 3.300 s
3.300 s
85 %
Frame at 3.400 s
3.400 s
85 %
Frame at 3.500 s
3.500 s
85 %
Frame at 3.600 s
3.600 s
85 %
Frame at 3.700 s
3.700 s
85 %
Frame at 3.800 s
3.800 s
85 %
Frame at 3.900 s
3.900 s
85 %
Frame at 4.000 s
4.000 s
91 %
Frame at 4.100 s
4.100 s
92 %
Frame at 4.200 s
4.200 s
92 %
Frame at 4.300 s
4.300 s
92 %
Frame at 4.400 s
4.400 s
92 %
Frame at 4.500 s
4.500 s
92 %
Frame at 4.600 s
4.600 s
97 %
Frame at 4.700 s
4.700 s
97 %
Frame at 4.800 s
4.800 s
97 %
Frame at 4.900 s
4.900 s
97 %
Frame at 5.000 s
5.000 s
97 %
Frame at 5.100 s
5.100 s
97 %
Frame at 5.200 s
5.200 s
98 %
Frame at 5.300 s
5.300 s
98 %
Frame at 5.400 s
5.400 s
98 %
Frame at 5.500 s
5.500 s
98 %
Frame at 5.600 s
5.600 s
98 %
Frame at 5.700 s
5.700 s
98 %
Frame at 5.800 s
5.800 s
98 %
Frame at 5.900 s
5.900 s
98 %
Frame at 6.000 s
6.000 s
98 %
Frame at 6.100 s
6.100 s
98 %
Frame at 6.200 s
6.200 s
98 %
Frame at 6.300 s
6.300 s
98 %
Frame at 6.400 s
6.400 s
99 %
Frame at 6.500 s
6.500 s
99 %
Frame at 6.600 s
6.600 s
99 %
Frame at 6.700 s
6.700 s
99 %
Frame at 6.800 s
6.800 s
99 %
Frame at 6.900 s
6.900 s
99 %
Frame at 7.000 s
7.000 s
99 %
Frame at 7.100 s
7.100 s
99 %
Frame at 7.200 s
7.200 s
99 %
Frame at 7.300 s
7.300 s
99 %
Frame at 7.400 s
7.400 s
99 %
Frame at 7.500 s
7.500 s
99 %
Frame at 7.600 s
7.600 s
99 %
Frame at 7.700 s
7.700 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 1.696 s on a 62 ms first byte; the 2 render-blocking requests were done by 211 ms and the remaining ~1.485 s 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

2 requests · 74.5 KB

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.

RequestWhen it loadedTransferDownload
document
stf.xelta.ai · TTFB 62 ms
56 ms
22.2 KB55 ms
css · stf.xelta.ai
113 ms
73.2 KB113 ms
css · stf.xelta.ai
49 ms
1.4 KB49 ms
LCP resource
image — downloaded by 1.275 s, rendered at 1.696 s
1.167 s
59.6 KB1.167 s
web font · stf.xelta.ai
120 ms
48.0 KB120 ms
web font · stf.xelta.ai · finished after first paint
loaded after FCP, at 3.935 s
83.7 KB18 ms
0424 ms848 msFCP · LCP 1.696 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

74
2 errors12 warnings4 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 15 CPU long tasks with the total of 1.899 s. The total blocking time is 706 ms and 5 long tasks before first contentful paint with total time of 693 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
  • multiple-contexts
  • same-origin-descendant
  • self
  • self
  • same-origin-descendant
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
warn(0)Avoid extra requests by setting cache headerscacheHeaders

The page has 28 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 119.8 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(0)Total JavaScript size shouldn't be too bigjavascriptSize

The total JavaScript transfer size is 1.1 MB and the uncompressed size is 3.6 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://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP180.8 KB548.2 KB
https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e178179150949611.3 KB30.9 KB
https://stf.xelta.ai/_next/static/chunks/0_ivozyvwwju-.js5.4 KB16.6 KB
https://stf.xelta.ai/_next/static/chunks/0y.c~4z1m7y2i.js814 B143 B
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https://stf.xelta.ai/cdn-cgi/challenge-platform/h/g/scripts/jsd/f70cb37711aa/main.js?9.7 KB20.6 KB
https://connect.facebook.net/en_US/fbevents.js103.8 KB394.5 KB
https://stf.xelta.ai/_next/static/chunks/0w-tb20otfze_.js80.2 KB264.5 KB
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https://stf.xelta.ai/_next/static/chunks/0oxjj2cw4l~r1.js3.7 KB7.2 KB
https://connect.facebook.net/signals/config/1941936199799107.../194193619979910761.2 KB262.7 KB
https://stf.xelta.ai/_next/static/chunks/0wqct_4nv9c_d.js10.1 KB35.8 KB
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warn(0)Total page size shouldn't be too bigpageSize

The page total transfer size is 4.3 MB, which is more than the coach limit of 3 MB. That is really big and you need to make it smaller.

Avoid having pages that have a transfer size over the wire of more than 3 MB (desktop) and 2 MB (mobile) because heavy pages hurt performance and are expensive for users on metered connections. Reference: HTTP Archive median page weight in 2024 was around 2.7 MB desktop / 2.4 MB mobile, so this rule fires when a page is above the modern median.

Offenders
URLTransferContent
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https://stf.xelta.ai/_next/static/chunks/0ltjyj-xdme9k.js14.5 KB42.1 KB
https://stf.xelta.ai/_next/static/chunks/0t~dpv9j7jqud.js46.6 KB207.4 KB
https://telemetry.matchbestsoftware.online/faro/286 B2 B
https://stf.xelta.ai/_next/image?url=%2Fchatboard%2Favtar.png&w=96&q=755.9 KB5.9 KB
https://telemetry.matchbestsoftware.online/faro/286 B2 B
https://stf.xelta.ai/_next/image?url=%2Fchatboard%2Favtar.png&w=96&q=755.9 KB5.9 KB
https://telemetry.matchbestsoftware.online/faro/286 B2 B
https://telemetry.matchbestsoftware.online/faro/286 B2 B
error(0)Avoid missing and error requestsresponseOk

The page has 21 error responses. The page has 2 responses with code 401. The page has 17 responses with code 403. 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(50)Total CSS size shouldn't be too bigcssSize

The total CSS transfer size is 76.3 kB and uncompressed size is 570.2 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/0bn2cukj3v_dz.css73.2 KB554.9 KB
https://stf.xelta.ai/_next/static/chunks/08ak-dq81l91~.css1.4 KB2.0 KB
infoThe favicon should be small and cacheablefavicon

The favicon size is 664.2 kB bytes. That's quite big, can you make it smaller?

It is easy to make the favicon big but please avoid doing that, because every browser will then perform an unnecessarily large download. And make sure the cache headers are set for a long time for the favicon. It is easy to miss since it's another content type.

Offenders
warn(50)Total image size shouldn't be too bigimageSize

The page total image size is 2.2 MB. 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.

warn(70)Apply the right priority hints to the LCP imagelcpImageHints

The LCP image is missing fetchpriority="high". Adding it tells the browser to fetch the image with high priority instead of the default heuristic (which often deprioritises hero images that are loaded after the HTML has been parsed).

When the Largest Contentful Paint element is an image, the browser priority hints applied to that element directly affect the LCP metric. The image must NOT be loading="lazy" (that defers the fetch until near-viewport, which is the opposite of what an LCP image needs) and SHOULD be fetchpriority="high" (so the browser fetches it with high priority instead of guessing). https://web.dev/articles/fetch-priority

Offenders
  • <img alt="Video Editing" loading="eager" width="550" height="280" decoding="async" data-nimg="1" class="rounded-xl sm:rounded-[32px] w-full aspect-[4/3] sm:aspect-auto sm:h-[240px] md:h-[280px] object-cover" style="color:transparent" sizes="(max-width: 640px) 50vw, (max-width: 1200px) 50vw, 550px" srcset="/_next/image?url=https%3A%2F%2Fmedia.xelta.ai%2Fuploads%2Finput%2Fdefault%2F1783406027365-49d08a028631bfba.png&amp;w=384&amp;q=75 384w, /_next/image?url=https%3A%2F%2Fmedia.xelta.ai%2Fuploads%2Finput%2Fdefault%2F1783406027365-49d08a028631bfba.png&amp;w=640&amp;q=75 640w, /_next/image?url=https%3A%2F%2Fmedia.xelta.ai%2Fuploads%2Finput%2Fdefault%2F1783406027365-49d08a028631bfba.png&amp;w=750&amp;q=75 750w, /_next/image?url=https%3A%2F%2Fmedia.xelta.ai%2Fuploads%2Finput%2Fdefault%2F1783406027365-49d08a028631bfba.png&amp;w=828&amp;q=75 828w, /_next/image?url=https%3A%2F%2Fmedia.xelta.ai%2Fuploads%2Finput%2Fdefault%2F1783406027365-49d08a028631bfba.png&amp;w=1080&amp;q=75 1080w, /_next/image?url=https%3A%2F%2Fmedia.xelta.ai%2Fuploads%2Finput%2Fdefault%2F1783406027365-49d08a028631bfba.png&amp;w=1200&amp;q=75 1200w, /_next/image?url=https%3A%2F%2Fmedia.xelta.ai%2Fuploads%2Finput%2Fdefault%2F1783406027365-49d08a028631bfba.png&amp;w=1920&amp;q=75 1920w" src="/_next/image?url=https%3A%2F%2Fmedia.xelta.ai%2Fuploads%2Finput%2Fdefault%2F1783406027365-49d08a028631bfba.png&amp;w=1920&amp;q=75">
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
infoAvoid too many fontsfewFonts

The page has 2 font requests. Do you really need them? What value does the fonts give the user?

How many fonts do you need on a page for the user to get the message? Fonts can slow down the rendering of content, try to avoid loading too many of them because worst case it can make the text invisible until they are loaded (FOIT—flash of invisible text), best case they will flicker the text content when they arrive.

Offenders
infoLong cache headers is goodcacheHeadersLong
warn(90)Avoid doing redirectsassetsRedirects

The page has 1 redirect. 1 of the redirects are from the base domain, please fix them!

A redirect is one extra step for the user to download the asset. Avoid that if you want to be fast. Redirects are even more of a showstopper on mobile.

Offenders
warn(90)Always compress text contentcompressAssets

The page has 1 request that are served uncompressed. You could save a lot of bytes by sending them compressed instead.

In the early days of the Internet there were browsers that didn't support compressing (gzipping) text content. They do now. Make sure you compress HTML, JSON, JavaScript, CSS and SVG. It will save bytes for the user; making the page load faster and use less bandwith.

Offenders
URLTransferContent
https://stf.xelta.ai/cdn-cgi/challenge-platform/h/g/scripts/jsd/f70cb37711aa/main.js?9.7 KB20.6 KB
infoMake each CSS response smalloptimalCssSize

https://stf.xelta.ai/_next/static/chunks/0bn2cukj3v_dz.css size is 74.9 kB (74922) 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/0bn2cukj3v_dz.css73.2 KB554.9 KB
warn(90)Don't use private headers on static contentprivateAssets

The page has 1 request with private headers. 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
error(98)Avoid using incorrect mime typesmimeTypes

The page has 2 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

86
1 warning3 info
infoAvoid unnecessary headersunnecessaryHeaders

There are 1 response that sets a p3p header. There are 3 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 108 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
infoMeta descriptionmetaDescription

The meta description is too long. It has 224 characters, the recommended max is 160

Use a page description to make the page more relevant to search engines.

warn(50)Avoid too many third party requeststhirdParty

The page do 22% requests to third party domains (24 requests and 370.3 kB). First party is 86 requests and 3.9 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/ai-studio has a header report-to that is 619 characters long. https://stf.xelta.ai.../a23cb9d86f010e6e has a header cf-chl-out-s that is 1713 characters long. https://stf.xelta.ai.../a23cb9d86f010e6e has a header cf-chl-out-s that is 1713 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 content-security-policy-report-only that is 1415 characters long. https://connect.face...en_US/fbevents.js has a header permissions-policy that is 874 characters long. https://connect.face.../1941936199799107 has a header content-security-policy that is 1344 characters long. https://connect.face.../1941936199799107 has a header content-security-policy-report-only that is 1415 characters long. https://connect.face.../1941936199799107 has a header permissions-policy that is 874 characters long.

Do not send response headers that are too long.

Offenders

Privacy advice

60
1 error6 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 3 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 7% requests that are 3rd party (8 requests with a size of 366.3 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 1 tag-manager request and uses 1 tag-manager tool. The page do 7 survelliance requests and uses 5 survelliance tools. The page do 7 surveillance requests and uses 5 surveillance tools. The page do 2 utility requests and uses 2 utility tools. The page do 2 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

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.

TitleAI Studio - Video, Image & Voice Creation Tools | XeltaThe document title, shown in the browser tab and used by search results.
Layout viewport1350 × 2893 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 elements1,181Large, watch layout costTotal HTML elements. Fewer means less for the browser to style, lay out and paint.
Avg DOM depth10How deeply elements are nested on average.
Max DOM depth16The deepest nesting on the page. Deep branches cost more style recalculation.
Iframes1Embedded documents. Each is a separate page the browser loads and renders.
Script tags69Number 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 storage871 BData the page saved in localStorage, kept across visits.
Session storage267 BData kept in sessionStorage for this tab session only.
Connection type4GWhat the Network Information API reported for the test connection.

Resource hints

2 hints
dns-prefetch
  • https://media.xelta.ai/
preconnect
  • 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
  • Node.jsConfidence100
    Programming languages
  • UbuntuConfidence100
    Operating systems
  • EnvoyConfidence100
    Reverse proxies
  • Nginx1.24.0Confidence100
    Web serversReverse proxies
  • ExpressConfidence100
    Web frameworksWeb servers
  • HSTSConfidence100
    Security
  • CloudflareConfidence100
    CDN
  • HTTP/3Confidence100
    Miscellaneous

Third-party tools

16 tools

Data collected using Third Party Web version 0.29.2.

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

Visual Metrics

Visual milestones

all times from navigation start
Speed Index1.78 show quickly the page looked done
First Visual Change0.33 sfirst paint reaches the screen
Last Visual Change7.63 sscreen stops changing · 7.30 s after first
≥85%
≥95% rendered
≥99%
0.33 sFirst Visual Change
1.73 sVisual Complete 85%
4.60 sVisual Complete 95%
Visual Complete 99%6.33 s
Last Visual Change7.63 s
Visual Readiness7.30 s· first to last change
02.0 s4.0 s6.0 s
Content milestones
Perception index
Visual progress
Visual progress at 0 s0.0s
Visual progress at 1.3 s1.3s
Visual progress at 2.4 s2.4s
Visual progress at 3.5 s3.5s
Visual progress at 4.5 s4.5s
Visual progress at 5.6 s5.6s
Visual progress at 6.6 s6.6s
Visual progress at 7.7 s7.7s
FCP1.70s
LCP1.70s
VC851.73s
Long tasks
0.0s1.5s3.1s4.6s6.2s7.7s

Google Web Vitals

Largest Contentful Paint

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

1.696 sLCP render time

Phase breakdown

  • TTFB62 ms
  • Resource load delay31 ms
  • Resource load duration1.197 s
  • Element render delay406 ms

Element

Element type
<img>
Size (w × h)
105502
URL
https://stf.xelta.ai...ta.ai/_next/image
Load time
1.399 s

DOM path

body > div#app-root > div:eq(3) > section > div:eq(1) > div > a:eq(0) > div > div:eq(0) > img
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.

The Largest Contentful Paint API matched this image:

LCP element

Cumulative Layout Shift

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

0.029cumulative layout shift score

One shift is 100% of your 0.029 CLS. div:eq(3) moved at 4.493 s. Reserve space for whatever renders into that spot, a fixed height or an aspect-ratio box, so later content stops pushing the page around.

Elements that shifted

Worst first, showing shifts of 0.01 and up. Each percentage is that shift's exact share of the score.

  • 0.029
    100% of CLSshifted at 4.493 s
    <div class="min-h-screen bg-black text-white">
    body > div#app-root > div:eq(3)
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

4 entries
NameDurationDescription
cfCacheStatus0 msDYNAMIC
cfEdge4 ms
cfOrigin27 ms
cfExtPri0 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.

Chrome internal metrics (CDP)33
Audio handlers0
Audio worklet processors0
Documents2
Frames2
JS event listeners966
Layout objects1308
Media key sessions0
Media keys0
Nodes1680
Resources107
Context lifecycle state observers68
V8 per context datas3
Worker global scopes0
Uacss resources0
Rtc peer connections0
Resource fetchers2
Ad subframes0
Detached script states4
Array buffer contents29
Layout count19
Recalc style count38
Layout duration133
Recalc style duration153
Dev tools command duration26
Script duration2171
V8 compile duration7
Task duration4138
Task other duration1649
Thread time2
Process time3
JS heap used size21020232
JS heap total size29126656
First meaningful paint1696

PageXray

How the page is built.

HTTP versionH3
Total requests110
Total domains15
Transfer size4.1 MB
Content size7.2 MB
Missing compression1
Cookies20 third-party

Main document

status 200 · 0 redirects

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

HeaderValue
alt-svch3=":443"; ma=86400
cache-controls-maxage=50, stale-while-revalidate=31535950
cf-cache-statusDYNAMIC
cf-raya23cb9d86f010e6e-BOM
content-encodingzstd
content-security-policy-report-onlyscript-src 'unsafe-inline' 'unsafe-eval'; connect-src 'none'; report-uri https://csp-reporting.cloudflare.com/cdn-cgi/script_monitor/report?m=VSN02l8mBjNRtcdFQ542uG1ajj_jYb.CJzzLCCsENMs-1785502196.5503426-1.0.1.1-E6bIenMxqJA2T4sZHNzoxh2uFvPeYA1C2uE62QCyL1Hu9haZWfCcBJkZGG3Q.P6rRduu3YyKXuFgO06LS2syJuYL6Io8kk9Fb8UoqUvdY3EjW7FfeOu_witjSjtsSKLkHmRZKqOZLrHURRSNzToVcD0aH1Duxf1uYZao27mHz.I; report-to cf-csp-endpoint
content-typetext/html; charset=utf-8
dateFri, 31 Jul 2026 12:49:56 GMT
expect-ctmax-age=86400, enforce
nel{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
priorityu=0,i
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=PUkBD%2F%2BISxCdRWVM0GYMeoHcvLppThlIc7SNuu9Vwfjl29PawReQQu8c0NYP5yD0QdrKufODvPAIEjUSJxQFM79%2FOrlNLuNnXSmVIz48q2m1ec272ih2khfvTw%2FZEW4%3D"}]} {"group":"cf-csp-endpoint","max_age":86400,"endpoints":[{"url":"https://csp-reporting.cloudflare.com/cdn-cgi/script_monitor/report?m=VSN02l8mBjNRtcdFQ542uG1ajj_jYb.CJzzLCCsENMs-1785502196.5503426-1.0.1.1-E6bIenMxqJA2T4sZHNzoxh2uFvPeYA1C2uE62QCyL1Hu9haZWfCcBJkZGG3Q.P6rRduu3YyKXuFgO06LS2syJuYL6Io8kk9Fb8UoqUvdY3EjW7FfeOu_witjSjtsSKLkHmRZKqOZLrHURRSNzToVcD0aH1Duxf1uYZao27mHz.I"}]}
reporting-endpointscf-csp-endpoint="https://csp-reporting.cloudflare.com/cdn-cgi/script_monitor/report?m=VSN02l8mBjNRtcdFQ542uG1ajj_jYb.CJzzLCCsENMs-1785502196.5503426-1.0.1.1-E6bIenMxqJA2T4sZHNzoxh2uFvPeYA1C2uE62QCyL1Hu9haZWfCcBJkZGG3Q.P6rRduu3YyKXuFgO06LS2syJuYL6Io8kk9Fb8UoqUvdY3EjW7FfeOu_witjSjtsSKLkHmRZKqOZLrHURRSNzToVcD0aH1Duxf1uYZao27mHz.I"
servercloudflare
server-timingcfCacheStatus;desc="DYNAMIC" cfEdge;dur=4,cfOrigin;dur=27 cfExtPri
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-nextjs-cacheSTALE
x-nextjs-prerender1 1
x-nextjs-stale-time300
x-xss-protection1; mode=block

Response codes

200
7063.6%
202
1210.9%
204
65.5%
302
10.9%
401
21.8%
403
1715.5%
404
21.8%

Largest assets on the page (by transfer size)

Top 20 of 110

Requests and sizes per content type

9 types

Transfer size4.0 MB

  • image52.2%
  • javascript25.8%
  • favicon15.9%
  • font3.2%
  • css1.8%
  • html0.54%
  • plain0.20%
  • json0.20%
  • other0.02%

Content size7.1 MB

  • javascript49.2%
  • image29.4%
  • favicon9.3%
  • css7.7%
  • html2.6%
  • font1.8%
  • json0.11%
  • other0.00%
  • plain0.00%

Requests88

  • javascript51.1%
  • plain21.6%
  • json9.1%
  • image8.0%
  • other3.4%
  • css2.3%
  • font2.3%
  • html1.1%
  • favicon1.1%
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b22.2 KB186.1 KB1
css0 b74.5 KB556.8 KB2
javascript0 b1.0 MB3.5 MB45
image0 b2.1 MB2.1 MB7
font0 b131.7 KB130.6 KB2
favicon0 b648.6 KB668.8 KB1
other0 b698 B151 B3
json0 b8.0 KB7.6 KB8
plain0 b8.3 KB24 B19
Total0 b4.0 MB7.1 MB88

Data per domain

15 domains
DomainTotal download timeTransfer SizeContent SizeRequests
stf.xelta.ai11.344 s3.7 MB5.9 MB76
www.googletagmanager.com475 ms180.8 KB548.2 KB1
static.cloudflareinsights.com99 ms11.3 KB30.9 KB1
connect.facebook.net233 ms165.0 KB657.3 KB2
seob.stg.xelta.ai146 ms1.3 KB1.1 KB1
devpmt.xelta.ai3.106 s3.5 KB4.8 KB5
stb.xelta.ai160 ms1.1 KB55 B2
www.google-analytics.com424 msN/A0 b1
analytics.google.com403 msN/A0 b1
www.google.co.in111 ms63 B42 B1
stats.g.doubleclick.net104 ms555 B0 b1
us-assets.i.posthog.com1.188 s60 B0 b2
cms-b.stg2.xelta.ai839 ms2.0 KB534 B2
telemetry.matchbestsoftware.online117 ms3.4 KB24 B13
us.i.posthog.com864 ms496 B174 B1

Expires & last-modified statistics

typeminmedianmax
Expires0 seconds5 minutes1 year
Last modified5 minutes1 day6 weeks

Requests loaded after onLoad event

68 requests

Includes requests done after load event end.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript413.7 KB14
image2.0 MB4
font83.7 KB1
favicon648.6 KB1
plain6.4 KB18
json6.8 KB7
other0 b2
Total3.2 MB68

Requests loaded after onContentLoad

71 requests

Includes requests done after DOM content loaded.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript423.3 KB15
image2.0 MB4
font83.7 KB1
favicon648.6 KB1
plain8.3 KB19
json6.8 KB7
other0 b2
Total3.2 MB71

Third party

Third party requests categorised by Third party web version 0.29.2.

Third-party requests15
Tools6
Categories6

Categories

6 categories

Requests by category15

  • survelliance7 req · 5 tools46.7%
  • utility2 req · 2 tools13.3%
  • social2 req · 1 tool13.3%
  • analytics2 req · 1 tool13.3%
  • tag-manager1 req · 1 tool6.7%
  • ad1 req · 1 tool6.7%

Third party requests and tools

6 categories
tag-managerGoogle Tag Manager1 requests · 1 tool
survellianceGoogle Tag ManagerFacebookGoogle Analytics+ 2 more7 requests · 5 tools
utilityCloudflareOther Google APIs/SDKs2 requests · 2 tools
socialFacebook2 requests · 1 tool
analyticsGoogle Analytics2 requests · 1 tool
adGoogle/Doubleclick Ads1 requests · 1 tool

Unmatched third party domains

3 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
  • telemetry.matchbestsoftware.online
  • us.i.posthog.com

First party vs third party

86 first · 24 third party

Transfer size4.1 MB

  • First party3.7 MB91.3%
  • Third party361.6 KB8.7%

Content size7.2 MB

  • First party6.0 MB83.1%
  • Third party1.2 MB16.9%

Requests110

  • First party8678.2%
  • Third party2421.8%

First party requests and sizes per content type

86 requests

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

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b22.2 KB186.1 KB1
css0 b74.5 KB556.8 KB2
javascript0 b694.5 KB2.3 MB41
image0 b2.1 MB2.1 MB6
font0 b131.7 KB130.6 KB2
favicon0 b648.6 KB668.8 KB1
other0 b698 B151 B3
json0 b8.0 KB7.6 KB8
plain0 b4.4 KB0 b3
TotalN/A3.7 MB6.0 MB86

Third party requests and sizes per content type

24 requests
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b0 b0 b0
javascript0 b357.1 KB1.2 MB4
image0 b63 B42 B1
font0 b0 b0 b0
favicon0 b0 b0 b0
plain0 b3.9 KB24 B16
TotalN/A361.6 KB1.2 MB24