Page summary

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

Tested 2026-09-19 14:42:21 using Chrome 150.0.7871.46 (runtime settings)

SummaryWaterfallMetricsRenderingCoachPageXrayCPUThird party

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

79 / 100
Coach overall
82 / 100
Performance
91 / 100
Best practice
71 / 100
Privacy

How it loaded →

0 → 7.700 s · median run
Frame at 0 ms
start
Frame at 1800 ms
Largest paint1.800 s
Frame at 3300 ms
3.300 s
Frame at 4700 ms
4.700 s
Frame at 6200 ms
6.200 s
Frame at 7700 ms
Complete7.700 s
433 ms
First Visual Change
1.382 s
Speed Index
1.900 s
Visual Complete 85%
7.700 s
Last Visual Change
TTFB96 msLCP900 msTBT1.663 sCLS0.01

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 49 CPU long tasks with the total of 4.376 s. The total blocking time is 1.855 s and 1 long task before first contentful paint with total time of 121 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.

Total JavaScript size shouldn't be too big

0 / 100

The total JavaScript transfer size is 1.4 MB and the uncompressed size is 4.6 MB. This is totally crazy! There is really room for improvement here.

Google Web Vitals

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Time To First Byte (TTFB)96 ms96 ms96 ms96 ms
Largest Contentful Paint (LCP)900 ms900 ms900 ms900 ms
Cumulative Layout Shift (CLS)0.01380.01380.01380.0138

Visual Metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First visual change433 ms433 ms433 ms433 ms
Last visual change7.700 s7.700 s7.700 s7.700 s
Speed index1.382 s1.382 s1.382 s1.382 s
Visual readiness7.267 s7.267 s7.267 s7.267 s
Visual complete 851.900 s1.900 s1.900 s1.900 s
Visual complete 957.533 s7.533 s7.533 s7.533 s
Visual complete 997.700 s7.700 s7.700 s7.700 s

CPU

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Total Blocking Time1.663 s1.663 s1.663 s1.663 s
Max Potential FID250 ms250 ms250 ms250 ms
CPU long tasks 38383838
CPU last long task happens at12.015 s12.015 s12.015 s12.015 s

More metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First paint404 ms404 ms404 ms404 ms
Load event end1.328 s1.328 s1.328 s1.328 s

User Timing

min · median · mean · max of 1 run
MetricMinMedianMeanMax
GTM-G-CPG3NLBKHP:43.851 s3.851 s3.851 s3.851 s

Waterfall

Run 1 SpeedIndex median

First paintFCPLCPDOMContentLoadedDOM interactiveLoadRender-blockingRedirectError

Rendering

Run 1 · median
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 500 ms
500 ms
56 %
Frame at 600 ms
600 ms
56 %
Frame at 700 ms
700 ms
56 %
Frame at 800 ms
800 ms
56 %
Frame at 900 ms
900 ms
56 %
Frame at 1.000 s
1.000 s
77 %
Frame at 1.100 s
1.100 s
76 %
Frame at 1.200 s
1.200 s
76 %
Frame at 1.300 s
1.300 s
81 %
Frame at 1.400 s
1.400 s
81 %
Frame at 1.500 s
1.500 s
81 %
Frame at 1.600 s
1.600 s
79 %
Frame at 1.700 s
1.700 s
80 %
Frame at 1.800 s
1.800 s
82 %
Frame at 1.900 s
1.900 s
85 %
Frame at 2.000 s
2.000 s
87 %
Frame at 2.100 s
2.100 s
87 %
Frame at 2.200 s
2.200 s
93 %
Frame at 2.300 s
2.300 s
93 %
Frame at 2.400 s
2.400 s
93 %
Frame at 2.500 s
2.500 s
93 %
Frame at 2.600 s
2.600 s
95 %
Frame at 2.700 s
2.700 s
96 %
Frame at 2.800 s
2.800 s
96 %
Frame at 2.900 s
2.900 s
94 %
Frame at 3.000 s
3.000 s
92 %
Frame at 3.100 s
3.100 s
92 %
Frame at 3.200 s
3.200 s
91 %
Frame at 3.300 s
3.300 s
91 %
Frame at 3.400 s
3.400 s
93 %
Frame at 3.500 s
3.500 s
93 %
Frame at 3.600 s
3.600 s
93 %
Frame at 3.700 s
3.700 s
92 %
Frame at 3.800 s
3.800 s
92 %
Frame at 3.900 s
3.900 s
92 %
Frame at 4.000 s
4.000 s
94 %
Frame at 4.100 s
4.100 s
91 %
Frame at 4.200 s
4.200 s
89 %
Frame at 4.300 s
4.300 s
90 %
Frame at 4.400 s
4.400 s
89 %
Frame at 4.500 s
4.500 s
90 %
Frame at 4.600 s
4.600 s
90 %
Frame at 4.700 s
4.700 s
90 %
Frame at 4.800 s
4.800 s
91 %
Frame at 4.900 s
4.900 s
94 %
Frame at 5.000 s
5.000 s
93 %
Frame at 5.100 s
5.100 s
94 %
Frame at 5.200 s
5.200 s
93 %
Frame at 5.300 s
5.300 s
92 %
Frame at 5.400 s
5.400 s
89 %
Frame at 5.500 s
5.500 s
89 %
Frame at 5.600 s
5.600 s
87 %
Frame at 5.700 s
5.700 s
87 %
Frame at 5.800 s
5.800 s
91 %
Frame at 5.900 s
5.900 s
90 %
Frame at 6.000 s
6.000 s
88 %
Frame at 6.100 s
6.100 s
86 %
Frame at 6.200 s
6.200 s
85 %
Frame at 6.300 s
6.300 s
87 %
Frame at 6.400 s
6.400 s
88 %
Frame at 6.500 s
6.500 s
87 %
Frame at 6.600 s
6.600 s
87 %
Frame at 6.700 s
6.700 s
86 %
Frame at 6.800 s
6.800 s
85 %
Frame at 6.900 s
6.900 s
89 %
Frame at 7.000 s
7.000 s
91 %
Frame at 7.100 s
7.100 s
93 %
Frame at 7.200 s
7.200 s
95 %
Frame at 7.300 s
7.300 s
94 %
Frame at 7.400 s
7.400 s
93 %
Frame at 7.500 s
7.500 s
94 %
Frame at 7.600 s
7.600 s
96 %
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 404 ms on a 96 ms first byte; the 2 render-blocking requests were done by 221 ms and the remaining ~183 ms is style and layout work. The largest paint followed at 900 ms.

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

Render blocking requests

31 requests · 510.0 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 dashed line is FCP, the clock ends at LCP); 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
xelta.ai · TTFB 96 ms
137 ms
29.6 KB136 ms
css · xelta.ai
107 ms
88.0 KB107 ms
css · xelta.ai
56 ms
3.7 KB56 ms
3-w1slqtx4wge.jspotentially blocking
javascript · xelta.ai
240 ms
73.3 KB240 ms
25ym4jnna99b5.jspotentially blocking
javascript · xelta.ai
235 ms
48.8 KB235 ms
36h4r9duhyjke.jspotentially blocking
javascript · xelta.ai
220 ms
11.1 KB220 ms
38g0lu3_qmayg.jspotentially blocking
javascript · xelta.ai
219 ms
14.6 KB219 ms
1rttzs2jjmcrm.jspotentially blocking
javascript · xelta.ai
217 ms
44.0 KB217 ms
120g0hpahlx34.jspotentially blocking
javascript · xelta.ai
213 ms
23.2 KB213 ms
23 more requests
all done by 357 ms
203.2 KB
web font · xelta.ai · finished after first paint
81 ms
65.6 KB81 ms
web font · xelta.ai · finished after first paint
68 ms
8.8 KB68 ms
web font · xelta.ai · finished after first paint
64 ms
8.9 KB64 ms
0225 ms675 msFCP 404 msLCP 900 ms

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.

What to fix first

Performance advice

82
2 errors7 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 49 CPU long tasks with the total of 4.376 s. The total blocking time is 1.855 s and 1 long task before first contentful paint with total time of 121 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
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
warn(0)Total JavaScript size shouldn't be too bigjavascriptSize

The total JavaScript transfer size is 1.4 MB and the uncompressed size is 4.6 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://xelta.ai/_next/static/chunks/0_cis5bf89bk3.js3.7 KB9.3 KB
https://xelta.ai/_next/static/chunks/3ur639cpt-7ui.js11.3 KB38.9 KB
https://xelta.ai/_next/static/chunks/3-w1slqtx4wge.js73.3 KB232.0 KB
https://xelta.ai/_next/static/chunks/25ym4jnna99b5.js48.8 KB171.2 KB
https://xelta.ai/_next/static/chunks/turbopack-0qliv_on3yvhn.js6.6 KB18.4 KB
https://xelta.ai/_next/static/chunks/40ecen_51u8zc.js6.5 KB20.8 KB
https://xelta.ai/_next/static/chunks/2uoulaw6kucli.js10.1 KB26.2 KB
https://xelta.ai/_next/static/chunks/403qh4uu73dc5.js5.9 KB14.3 KB
https://xelta.ai/_next/static/chunks/444qa-9lnnm8j.js9.9 KB24.2 KB
https://xelta.ai/_next/static/chunks/1s0vi8ebq1ha0.js11.3 KB31.2 KB
https://xelta.ai/_next/static/chunks/1vr-_-ai-9wxy.js8.0 KB21.0 KB
https://xelta.ai/_next/static/chunks/1321f5pb3peoq.js8.4 KB33.9 KB
https://xelta.ai/_next/static/chunks/00up96pc24a4e.js10.4 KB25.8 KB
https://xelta.ai/_next/static/chunks/3wmj0jv19y0e5.js15.0 KB45.5 KB
https://xelta.ai/_next/static/chunks/2qwl8sgb3v89v.js19.7 KB62.0 KB
https://xelta.ai/_next/static/chunks/0v-y_275lo0v3.js10.8 KB29.1 KB
https://xelta.ai/_next/static/chunks/2_mphrdu04vzv.js13.8 KB39.3 KB
https://xelta.ai/_next/static/chunks/1spzo3397ba2t.js6.5 KB14.5 KB
https://xelta.ai/_next/static/chunks/1rttzs2jjmcrm.js44.0 KB140.6 KB
https://xelta.ai/_next/static/chunks/17jp2fut2e48l.js18.1 KB54.6 KB
https://xelta.ai/_next/static/chunks/120g0hpahlx34.js23.2 KB66.2 KB
https://xelta.ai/_next/static/chunks/2f2i__v854m6r.js9.2 KB30.0 KB
https://xelta.ai/_next/static/chunks/21qxs2_9klwty.js1.8 KB1.4 KB
https://xelta.ai/_next/static/chunks/1yoy6xy7rnaz0.js2.1 KB2.2 KB
https://xelta.ai/_next/static/chunks/0r_-zfn80zo41.js2.3 KB2.7 KB
https://xelta.ai/_next/static/chunks/28k90hmp3uiwc.js3.5 KB6.4 KB
https://xelta.ai/_next/static/chunks/28r3ari2she5h.js1.2 KB217 B
https://xelta.ai/_next/static/chunks/34zqwff648hvy.js10.7 KB33.9 KB
https://xelta.ai/_next/static/chunks/38g0lu3_qmayg.js14.6 KB49.4 KB
https://xelta.ai/_next/static/chunks/36h4r9duhyjke.js11.1 KB37.2 KB
https://static.cloudflareinsights.com/beacon.min.js/v31edd6df95cf4e85bb4c19e7a9bdbcba178836298749510.1 KB29.6 KB
https://xelta.ai/_next/static/chunks/0ga4rs1yp22vv.js2.4 KB3.0 KB
https://xelta.ai/_next/static/chunks/2tldojfjwreij.js10.6 KB36.2 KB
https://xelta.ai/_next/static/chunks/2aamqngoqh57z.js6.1 KB16.1 KB
https://xelta.ai/_next/static/chunks/2oue1a6qt5s20.js1.4 KB493 B
https://xelta.ai/_next/static/chunks/2qqm7elam7bva.js1.7 KB1.2 KB
https://xelta.ai/_next/static/chunks/3c9-jx0jhg1zb.js2.1 KB1.8 KB
https://xelta.ai/analytics/gtm.js1.6 KB403 B
https://www.googletagmanager.com/gtm.js?id=GTM-5XNS5NQ2115.2 KB324.5 KB
https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP187.2 KB569.1 KB
https://xelta.ai/analytics/ga4.js1.4 KB144 B
https://xelta.ai/analytics/meta-pixel.js1.6 KB514 B
https://xelta.ai/_next/static/chunks/1ki4hltmjvw2d.js77.6 KB253.9 KB
https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP&cx=c&gtm=4e69g1187.1 KB569.1 KB
https://connect.facebook.net/en_US/fbevents.js110.8 KB411.7 KB
https://connect.facebook.net/signals/config/1123404090023729.../1123404090023729139.4 KB496.8 KB
https://xelta.ai/_next/static/chunks/16orvb4qnjgm7.js41.8 KB139.5 KB
https://xelta.ai/_next/static/chunks/3f1tw02kuplod.js3.2 KB6.2 KB
https://xelta.ai/_next/static/chunks/2k5vpzc_p9jpq.js35.3 KB106.7 KB
https://xelta.ai/_next/static/chunks/0ibqqj5n22681.js10.4 KB31.0 KB
https://xelta.ai/_next/static/chunks/3dh4veiardltk.js47.0 KB206.7 KB
warn(20)Avoid extra requests by setting cache headerscacheHeaders

The page has 8 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 11.3 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 94 kB and uncompressed size is 691.9 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://xelta.ai/_next/static/chunks/0tno1pvl1xw0w.css88.0 KB646.7 KB
https://xelta.ai/_next/static/chunks/1eteo4yyc63ev.css3.7 KB28.9 KB
infoAvoid too many fontsfewFonts

The page has 5 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
warn(60)Don't use private headers on static contentprivateAssets

The page has 4 requests 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
infoLong cache headers is goodcacheHeadersLong
infoMake each CSS response smalloptimalCssSize

https://xelta.ai/_next/static/chunks/0tno1pvl1xw0w.css size is 90.2 kB (90160) 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://xelta.ai/_next/static/chunks/0tno1pvl1xw0w.css88.0 KB646.7 KB
error(90)Avoid missing and error requestsresponseOk

The page has 1 error response. The page has 1 response with code 401.

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(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(99)Avoid using incorrect mime typesmimeTypes

The page has 1 misconfigured mime type.

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 warning3 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 3 responses that sets a pragma no-cache header (that is a request header). There are 92 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 15% requests to third party domains (14 requests and 769.3 kB). First party is 80 requests and 1.2 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://xelta.ai/_ne...ta.ai/_next/image has a header content-security-policy-report-only that is 805 characters long. https://xelta.ai/_ne...ta.ai/_next/image has a header report-to that is 611 characters long. https://xelta.ai/ico...le-touch-icon.png has a header content-security-policy-report-only that is 805 characters long. https://xelta.ai/ico...le-touch-icon.png has a header report-to that is 609 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
infoAvoid use too many response headersmanyHeaders

https://xelta.ai/api...nt/public/pricing has 33 headers.https://xelta.ai/api/cms/maintenance has 33 headers.https://xelta.ai/ico...le-touch-icon.png has 31 headers.https://xelta.ai/api/auth/profile has 32 headers.https://xelta.ai/api...nts/active-banner has 33 headers.https://xelta.ai/api...cms/announcements has 33 headers.https://xelta.ai/api/geo has 32 headers.

Avoid send too many response headers.

Offenders

Privacy advice

71
6 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 5 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
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
warn(0)Do not share user data with third parties.thirdPartyPrivacy

The page has 11% requests that are 3rd party (10 requests with a size of 768.7 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 2 utility requests and uses 2 utility tools. The page do 3 tag-manager requests and uses 1 tag-manager tool. The page do 9 survelliance requests and uses 5 survelliance tools. The page do 9 surveillance requests and uses 5 surveillance tools. The page do 3 social requests and uses 1 social tool. The page do 1 analytics request 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(60)Use a strict Content-Security-Policy header to mitigate cross-site scripting (XSS) attacks.contentSecurityPolicyHeader

The policy allows 'unsafe-inline', which lets the browser execute inline scripts and styles directly from the page. Move to nonces or hashes plus 'strict-dynamic' so that inline injection cannot run.

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

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 viewport1365 × 1314 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 elements1,797Very large, slows layout and styleTotal HTML elements. Fewer means less for the browser to style, lay out and paint.
Avg DOM depth12How deeply elements are nested on average.
Max DOM depth17The deepest nesting on the page. Deep branches cost more style recalculation.
Iframes1Embedded documents. Each is a separate page the browser loads and renders.
Script tags59Number 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 storage872 BData the page saved in localStorage, kept across visits.
Session storage565 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

Third-party tools

16 tools

Data collected using Third Party Web version 0.29.2.

Utility
  • Cloudflare
  • Other Google APIs/SDKs
Tag-manager
  • Google Tag Manager
Survelliance
  • Google Tag Manager
  • Facebook
  • Google Analytics
  • Google/Doubleclick Ads
  • Other Google APIs/SDKs
Surveillance
  • Google Tag Manager
  • Facebook
  • Google Analytics
  • Google/Doubleclick Ads
  • 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 Index1.38 show quickly the page looked done
First Visual Change0.43 sfirst paint reaches the screen
Last Visual Change7.70 sscreen stops changing · 7.27 s after first
≥85%
0.43 sFirst Visual Change
1.90 sVisual Complete 85%
Visual Complete 95%7.53 s
Visual Complete 99% · Last Visual Change7.70 s
Visual Readiness7.27 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 1.4 s1.4s
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
FCP0.40s
LCP0.90s
VC851.90s
Long tasks
0.0s1.5s3.1s4.6s6.2s7.7s

Google Web Vitals

from run 1

Largest Contentful Paint

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

900 msLCP render time

Phase breakdown

  • TTFB96 ms
  • Resource load delay0 ms
  • Resource load duration0 ms
  • Element render delay804 ms

Element

Element type
<div>
Size (w × h)
88800
Load time
0 ms

DOM path

body > div#app-root > div:eq(2) > main > div > div > div:eq(1)
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.

0.014cumulative 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.

  • #10.008<div class="jsx-6a89c869d3633fd0 flex flex-col items-center justify-center px-[2vw] relative z-10 pt-[4vh] lg:pt-[6vh] w-full lg:w-[77vw] mx-auto pb-[4vh]"></div>,<div class="jsx-6a89c869d3633fd0 w-full relative bg-black rounded-[0.8vw] aspect-[21/9] mb-[2vh] overflow-hidden shadow-2xl ring-1 ring-white/10 group"></div>,<div class="hidden lg:flex items-center flex-shrink-0 ml-auto"></div>
    body > div#app-root > div:eq(2) > main > div > div > div:eq(1),body > div#app-root > div:eq(2) > main > div > div > div:eq(1) > div:eq(0),body > div#app-root > header > div > div:eq(2)
  • #20.006<h2 class="tracking-tight lg:tracking-[clamp(-1.32px,-0.0875vw,0px)] text-center text-4xl md:text-[60px] lg:text-[clamp(0px,4.695vw,71px)] leading-[1.2] lg:leading-[1.2] mb-[1vh]" style="background:linear-gradient(180deg, #FFFFFF 50%, #666665 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;color:transparent"></h2>,
    body > div#app-root > div:eq(2) > main > div > div > div:eq(1) > h2,body > div#app-root > div:eq(2) > main > div > div > div:eq(1) > h2 > span:eq(1) > #text
  • #30.000<div class="hidden lg:flex items-center flex-shrink-0 ml-auto"></div>
    body > div#app-root > header > div > div:eq(2)
  • #40.000<div class="hidden lg:flex items-center flex-shrink-0 ml-auto"></div>
    body > div#app-root > header > div > div:eq(2)
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
User Timing marks
GTM-G-CPG3NLBKHP:43.851 s

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
cfEdge12 ms–
cfOrigin45 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 requests94
Total domains12
Transfer size1.8 MB
Content size6.0 MB
Missing compression0
Cookies41 third-party

Main document

status 200 · 0 redirects

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

HeaderValue
alt-svch3=":443"; ma=86400
cache-controls-maxage=31536000
cf-cache-statusDYNAMIC
cf-raya3d95b4f6b8054b9-DEL
content-encodingbr
content-security-policydefault-src 'self'; script-src 'self' 'unsafe-inline' https:; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com data:; img-src 'self' data: blob: https:; media-src 'self' https: blob:; connect-src 'self' https: wss: blob:; worker-src 'self' blob:; frame-src 'self' https:; frame-ancestors 'none'; object-src 'none'; base-uri 'self'; form-action 'self'
content-security-policy-report-onlydefault-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https:; style-src 'self' 'unsafe-inline' https:; img-src 'self' data: blob: https:; font-src 'self' data: https:; media-src 'self' data: blob: https:; connect-src 'self' https: wss: blob:; worker-src 'self' blob:; frame-src 'self' https:; object-src 'none'; base-uri 'self'; form-action 'self' https:; frame-ancestors 'self';
content-typetext/html; charset=utf-8
dateSat, 19 Sep 2026 14:42:23 GMT
expect-ctmax-age=86400, enforce
nel{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
permissions-policycamera=(), microphone=(self), geolocation=(), interest-cohort=()
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=s3p5zr8gL1BYDQ8%2FC72qoaPUH5UuArOpdBBGDBRXhLHRGXb6fCIEhwnBC2JjcOPgNXCoKxlVFBeVisN9ttw4jY3txKCd5s2Su50ua%2F%2FFrktGXI1Z1jejlkhz"}]}
servercloudflare
server-timingcfCacheStatus;desc="DYNAMIC" cfEdge;dur=12,cfOrigin;dur=45
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-cacheHIT
x-nextjs-prerender1 1
x-nextjs-stale-time300
x-xss-protection1; mode=block

Response codes

200
8691.5%
202
11.1%
204
44.3%
206
22.1%
401
11.1%

Largest assets on the page (by transfer size)

Top 20 of 94

Requests and sizes per content type

10 types

Transfer size1.8 MB

  • javascript75.0%
  • image8.0%
  • font7.4%
  • css4.9%
  • video2.0%
  • html1.6%
  • json0.57%
  • favicon0.51%
  • plain0.07%
  • other0.02%

Content size6.0 MB

  • javascript73.1%
  • css11.0%
  • video7.7%
  • html3.7%
  • font2.2%
  • image2.2%
  • favicon0.14%
  • json0.05%
  • other0.00%
  • plain0.00%

Requests93

  • javascript54.8%
  • image17.2%
  • json8.6%
  • plain6.5%
  • font5.4%
  • css2.2%
  • video2.2%
  • html1.1%
  • favicon1.1%
  • other1.1%
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b29.6 KB227.3 KB1
css0 b91.8 KB675.7 KB2
javascript0 b1.4 MB4.4 MB51
image0 b151.2 KB132.2 KB16
font0 b139.5 KB134.9 KB5
favicon0 b9.6 KB8.3 KB1
other0 b449 B151 B1
json0 b10.7 KB2.8 KB8
video0 b38.6 KB470.2 KB2
plain0 b1.4 KB2 B6
Total0 b1.8 MB6.0 MB93

Data per domain

12 domains
DomainTotal download timeTransfer SizeContent SizeRequests
xelta.ai9.301 s1.1 MB3.2 MB78
static.cloudflareinsights.com109 ms10.1 KB29.6 KB1
media.xelta.ai650 ms38.6 KB470.2 KB2
www.googletagmanager.com906 ms489.5 KB1.4 MB3
connect.facebook.net310 ms250.1 KB908.5 KB2
analytics.google.com242 msN/A0 b1
stats.g.doubleclick.net132 ms553 B0 b1
www.google.co.in310 ms408 B42 B1
mpc-prod-27-s6uit34pua-uk.a.run.app360 msN/A0 b1
us.i.posthog.com1.022 s286 B15 B1
www.facebook.com125 msN/A0 b1
telemetry.matchbestsoftware.online324 ms286 B2 B2

Expires & last-modified statistics

typeminmedianmax
Expires0 seconds1 year1 year
Last modified3 hours4 hours2 weeks

Requests loaded after onLoad event

31 requests

Includes requests done after load event end.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript959.8 KB14
image9.4 KB3
font0 b0
favicon9.6 KB1
plain1.4 KB6
json6.8 KB6
Total988.5 KB31

Requests loaded after onContentLoad

47 requests

Includes requests done after DOM content loaded.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript984.0 KB20
image35.8 KB7
font91.8 KB4
favicon9.6 KB1
video38.6 KB1
json8.8 KB7
plain1.4 KB6
Total1.1 MB47

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.

TBT1.663 s
Max potential input delay250 ms
Total long tasks38
Total time3.634 s
Last task at12.015 s
Before first paint121 ms1 task
Before FCP121 ms1 task
Before LCP429 ms4 tasks
After load3.040 s32 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 frames104showing the 10 with the most blocking time
Blocking time2.031 sacross all long frames — what hurts INP and TBT
Blocking before LCP172.8 msdelaying the largest paint — fix these first
Blocking after load961.9 msafter the load event — didn't delay page load
Input waiting1 framea real interaction was delayed (INP)

What to fix first

ScriptFramesTime runningBlocking (share by run time)Forced style & layoutTriggered by
js3rd party2261 ms192.5 ms–script tag, promise callback
gtm.js3rd party1250.4 ms178.7 ms–script tag
fbevents.js3rd party1185.9 ms135.1 ms–script tag
11234040900237293rd party1194.6 ms115.5 ms–script tag
1ki4hltmjvw2d.js1173 ms90.6 ms–script tag
3-w1slqtx4wge.js2119.2 ms75.2 ms–event handler

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 · 307 msat 2.128 s · after load
blocking 211.4 ms
  • Scripts & other work296.3 ms
  • Animation callbacks10.6 ms
  • Style & layout0.1 ms
  • Render0 ms
1 script ran during this frame
gtm.js3rd party
Ran for
250.4 ms
How it started
script tag
Long animation frame #2 · 218.1 msat 3.254 s · after load
blocking 167.2 ms
  • Scripts & other work218 ms
  • Animation callbacks0.1 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame
js3rd party
Ran for
216.6 ms
How it started
script tag
Long animation frame #3 · 246.1 msat 3.472 s · after load
blocking 145.6 ms
  • Scripts & other work245.3 ms
  • Animation callbacks0.4 ms
  • Style & layout0.4 ms
  • Render0 ms
2 scripts ran during this frame
js3rd party
Ran for
44.4 ms
Started by
Promise.resolve
How it started
promise callback
Position in source
character 419494 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Ran for
194.6 ms
How it started
script tag
Long animation frame #4 · 188.3 msat 3.061 s · after load
blocking 136.5 ms
  • Scripts & other work187.8 ms
  • Animation callbacks0.2 ms
  • Style & layout0.3 ms
  • Render0 ms
1 script ran during this frame
fbevents.js3rd party
Ran for
185.9 ms
How it started
script tag
Long animation frame #5 · 236.4 msat 2.811 s · after load
blocking 123.5 ms
  • Scripts & other work235.9 ms
  • Animation callbacks0.3 ms
  • Style & layout0.2 ms
  • Render0 ms
1 script ran during this frame
Ran for
173 ms
How it started
script tag
Long animation frame #6 · 167.7 msat 2.615 s · after load
blocking 110.7 ms
  • Scripts & other work11.5 ms
  • Animation callbacks155.3 ms
  • Style & layout0.9 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 · 260.3 msat 120.9 ms · before LCP
blocking 92 ms
  • Scripts & other work145.1 ms
  • Animation callbacks0.2 ms
  • Style & layout115 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 #8 · 134.9 msat 571.5 ms · before LCP
input was waitingblocking 80.8 ms
  • Scripts & other work10.6 ms
  • Animation callbacks124.3 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame
Ran for
6.5 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 3191 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Long animation frame #9 · 129.4 msat 1.110 s · before load
blocking 72.7 ms
  • Scripts & other work119.3 ms
  • Animation callbacks0.2 ms
  • Style & layout9.9 ms
  • Render0 ms
1 script ran during this frame
Ran for
112.7 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 3191 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Long animation frame #10 · 130.1 msat 9.450 s · after load
blocking 67 ms
  • Scripts & other work13.2 ms
  • Animation callbacks116.8 ms
  • Style & layout0.1 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.

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.

Top scripts blocking the main thread

6 of 6 scripts

Third party

Third party requests categorised by Third party web version 0.29.2.

Third-party requests19
Tools6
Categories6
Third-party cookies1

Categories

6 categories

Requests by category19

  • survelliance9 req · 5 tools47.4%
  • tag-manager3 req · 1 tool15.8%
  • social3 req · 1 tool15.8%
  • utility2 req · 2 tools10.5%
  • analytics1 req · 1 tool5.3%
  • ad1 req · 1 tool5.3%

Third party requests and tools

6 categories
utilityCloudflareOther Google APIs/SDKs2 requests · 2 tools
tag-managerGoogle Tag Manager3 requests · 1 tool
survellianceGoogle Tag ManagerFacebookGoogle Analytics+ 2 more9 requests · 5 tools
socialFacebook3 requests · 1 tool
analyticsGoogle Analytics1 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.

  • 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

80 first · 14 third party

Transfer size1.8 MB

  • First party1.1 MB60.3%
  • Third party751.3 KB39.7%

Content size6.0 MB

  • First party3.7 MB60.9%
  • Third party2.3 MB39.1%

Requests94

  • First party8085.1%
  • Third party1414.9%

First party requests and sizes per content type

80 requests

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

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b29.6 KB227.3 KB1
css0 b91.8 KB675.7 KB2
javascript0 b666.2 KB2.0 MB45
image0 b150.8 KB132.2 KB15
font0 b139.5 KB134.9 KB5
favicon0 b9.6 KB8.3 KB1
other0 b449 B151 B1
json0 b10.4 KB2.8 KB6
video0 b38.6 KB470.2 KB2
plain0 b571 B0 b1
TotalN/A1.1 MB3.7 MB80

Third party requests and sizes per content type

14 requests
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b0 b0 b0
javascript0 b749.8 KB2.3 MB6
image0 b408 B42 B1
font0 b0 b0 b0
favicon0 b0 b0 b0
plain0 b839 B2 B5
json0 b286 B15 B2
TotalN/A751.3 KB2.3 MB14