Page summary

https://xelta.ai/models/marketing/video-ad-generator-workflow

Tested 2026-08-24 07:03:09 using Chrome 150.0.7871.46 (runtime settings)

SummaryWaterfallMetricsRenderingCoachPageXrayCPUThird party

This page is visually stable and follows best practices, but slow to paint, a little janky to interact with, weak on user privacy and slow to respond from the server.

73 / 100
Coach overall
72 / 100
Performance
91 / 100
Best practice
66 / 100
Privacy

How it loaded →

0 → 7.126 s · median run
Frame at 0 ms
start
Frame at 2700 ms
2.700 s
Frame at 3800 ms
3.800 s
Frame at 5000 ms
5.000 s
Frame at 6100 ms
6.100 s
Frame at 7200 ms
Complete7.200 s
1.614 s
First Visual Change
5.451 s
Speed Index
7.093 s
Visual Complete 85%
7.126 s
Last Visual Change
TTFB804 msLCP7.264 sTBT239 msCLS0.01

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.

Have a fast largest contentful paint

0 / 100

Largest contentful paint is poor 7.264 s. It is in the Google Web Vitals poor range, slower than 4 seconds.

Avoid CPU Long Tasks

0 / 100

The page has 9 CPU long tasks with the total of 717 ms. The total blocking time is 239 ms and 1 long task before first contentful paint with total time of 78 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.

Google Web Vitals

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Time To First Byte (TTFB)804 ms804 ms804 ms804 ms
Largest Contentful Paint (LCP)7.264 s7.264 s7.264 s7.264 s
Cumulative Layout Shift (CLS)0.01380.01380.01380.0138

Visual Metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First visual change1.614 s1.614 s1.614 s1.614 s
Last visual change7.126 s7.126 s7.126 s7.126 s
Speed index5.451 s5.451 s5.451 s5.451 s
Visual readiness5.512 s5.512 s5.512 s5.512 s
Visual complete 857.093 s7.093 s7.093 s7.093 s
Visual complete 957.126 s7.126 s7.126 s7.126 s
Visual complete 997.126 s7.126 s7.126 s7.126 s

CPU

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Total Blocking Time239 ms239 ms239 ms239 ms
Max Potential FID134 ms134 ms134 ms134 ms
CPU long tasks 9999
CPU last long task happens at9.183 s9.183 s9.183 s9.183 s

More metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First paint1.756 s1.756 s1.756 s1.756 s
Load event end1.633 s1.633 s1.633 s1.633 s

Waterfall

Run 1 SpeedIndex median

First paintFCPLCPDOMContentLoadedDOM interactiveLoadRender-blockingRedirectError

Rendering

Run 1 · median
0.000 s
0s2s4s6s

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

56 frames

Use --filmstrip.showAll to show all filmstrips.

Frame at 0 ms
0 ms
0 %
Frame at 1.700 s
1.700 s
22 %
Frame at 1.800 s
1.800 s
23 %
Frame at 1.900 s
1.900 s
24 %
Frame at 2.000 s
2.000 s
24 %
Frame at 2.100 s
2.100 s
24 %
Frame at 2.200 s
2.200 s
28 %
Frame at 2.300 s
2.300 s
30 %
Frame at 2.400 s
2.400 s
94 %
Frame at 2.500 s
2.500 s
31 %
Frame at 2.600 s
2.600 s
29 %
Frame at 2.700 s
2.700 s
29 %
Frame at 2.800 s
2.800 s
29 %
Frame at 2.900 s
2.900 s
29 %
Frame at 3.000 s
3.000 s
29 %
Frame at 3.100 s
3.100 s
91 %
Frame at 3.200 s
3.200 s
26 %
Frame at 3.300 s
3.300 s
25 %
Frame at 3.400 s
3.400 s
23 %
Frame at 3.500 s
3.500 s
22 %
Frame at 3.600 s
3.600 s
20 %
Frame at 3.700 s
3.700 s
21 %
Frame at 3.800 s
3.800 s
22 %
Frame at 3.900 s
3.900 s
22 %
Frame at 4.000 s
4.000 s
22 %
Frame at 4.100 s
4.100 s
24 %
Frame at 4.200 s
4.200 s
28 %
Frame at 4.300 s
4.300 s
29 %
Frame at 4.400 s
4.400 s
28 %
Frame at 4.500 s
4.500 s
92 %
Frame at 4.600 s
4.600 s
30 %
Frame at 4.700 s
4.700 s
31 %
Frame at 4.800 s
4.800 s
29 %
Frame at 5.000 s
5.000 s
29 %
Frame at 5.100 s
5.100 s
30 %
Frame at 5.200 s
5.200 s
27 %
Frame at 5.300 s
5.300 s
26 %
Frame at 5.400 s
5.400 s
28 %
Frame at 5.500 s
5.500 s
22 %
Frame at 5.600 s
5.600 s
21 %
Frame at 5.700 s
5.700 s
22 %
Frame at 5.800 s
5.800 s
22 %
Frame at 5.900 s
5.900 s
23 %
Frame at 6.000 s
6.000 s
22 %
Frame at 6.100 s
6.100 s
24 %
Frame at 6.200 s
6.200 s
28 %
Frame at 6.300 s
6.300 s
29 %
Frame at 6.400 s
6.400 s
27 %
Frame at 6.500 s
6.500 s
31 %
Frame at 6.600 s
6.600 s
30 %
Frame at 6.700 s
6.700 s
30 %
Frame at 6.800 s
6.800 s
30 %
Frame at 6.900 s
6.900 s
30 %
Frame at 7.000 s
7.000 s
29 %
Frame at 7.100 s
7.100 s
93 %
Frame at 7.200 s
7.200 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?

The server dominated the wait. The first byte took 804 ms (46 % of the time to First Contentful Paint). Nothing can render before it arrives, and Google Web Vitals considers a TTFB over 800 ms in need of improvement. See the request timing on the Waterfall tab. First paint landed at 1.756 s; the 2 render-blocking requests were done by 1.558 s and the remaining ~198 ms is style and layout work. The largest paint followed at 7.264 s.

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 · 77.9 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 804 ms
801 ms
23.2 KB800 ms
css · xelta.ai
733 ms
76.7 KB733 ms
css · xelta.ai
726 ms
1.2 KB726 ms
LCP resource
1787417554386-kygh.jpeg — downloaded by 7.157 s, rendered at 7.264 s
159 ms
12.1 KB159 ms
web font · xelta.ai
568 ms
47.7 KB568 ms
03.632 s5.448 sFCP 1.756 sLCP 7.264 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

72
3 errors10 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.

error(0)Have a fast largest contentful paintlargestContentfulPaint

Largest contentful paint is poor 7.264 s. It is in the Google Web Vitals poor range, slower than 4 seconds.

Largest contentful paint is one of Google Web Vitals and reports the render time of the largest image or text block visible within the viewport, relative to when the page first started loading. To be fast according to Google, it needs to render before 2.5 seconds and results over 4 seconds is poor performance.

Offenders
warn(0)Avoid CPU Long TaskslongTasks

The page has 9 CPU long tasks with the total of 717 ms. The total blocking time is 239 ms and 1 long task before first contentful paint with total time of 78 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
  • unknown
  • self
warn(0)Avoid extra requests by setting cache headerscacheHeaders
warn(0)Total JavaScript size shouldn't be too bigjavascriptSize

The total JavaScript transfer size is 1.3 MB and the uncompressed size is 4.1 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://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP182.9 KB551.6 KB
https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e178179150949611.3 KB30.9 KB
https://xelta.ai/_next/static/chunks/0m3mx3i-m~688.js4.7 KB15.1 KB
https://xelta.ai/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js4.1 KB12.0 KB
https://xelta.ai/_next/static/chunks/04~e..1ztbtpk.js12.9 KB39.7 KB
https://xelta.ai/_next/static/chunks/00u_2hudh-34~.js14.9 KB48.7 KB
https://xelta.ai/_next/static/chunks/08nzb153.fs1t.js56.4 KB240.5 KB
https://xelta.ai/_next/static/chunks/08awojht0q7q1.js9.5 KB28.2 KB
https://xelta.ai/_next/static/chunks/0sj3aqfg9c~8k.js7.7 KB30.7 KB
https://xelta.ai/_next/static/chunks/13bz.~e9vkkbi.js9.8 KB32.4 KB
https://xelta.ai/_next/static/chunks/018e-dq7n7_9a.js1.9 KB2.7 KB
https://xelta.ai/_next/static/chunks/17b3z_92n-ida.js29.4 KB90.4 KB
https://xelta.ai/_next/static/chunks/0rogcuclal8nq.js12.4 KB34.8 KB
https://xelta.ai/_next/static/chunks/0h~ghfwq3l0n1.js16.1 KB52.7 KB
https://xelta.ai/_next/static/chunks/0968~ir0sl3wz.js7.5 KB19.9 KB
https://xelta.ai/_next/static/chunks/06e425a78ll4h.js19.3 KB62.0 KB
https://xelta.ai/_next/static/chunks/0x_ej7ci_dxr3.js17.0 KB67.5 KB
https://xelta.ai/_next/static/chunks/0kc5itym_8jof.js15.8 KB63.5 KB
https://xelta.ai/_next/static/chunks/02fvhu.~ed9tm.js43.6 KB140.7 KB
https://xelta.ai/_next/static/chunks/0fg44qzichqiw.js42.0 KB142.6 KB
https://xelta.ai/_next/static/chunks/0f-bld2ezby-x.js14.5 KB42.0 KB
https://xelta.ai/_next/static/chunks/0fb..7m5fmuc_.js10.0 KB27.9 KB
https://xelta.ai/_next/static/chunks/0.4x.j3tu010_.js7.8 KB21.3 KB
https://xelta.ai/_next/static/chunks/150ht8n--uthk.js9.2 KB31.3 KB
https://xelta.ai/_next/static/chunks/01tugzyomgiq~.js12.1 KB32.6 KB
https://xelta.ai/_next/static/chunks/13ee4mpgt8ag..js9.9 KB25.7 KB
https://xelta.ai/_next/static/chunks/144c003qaudkf.js10.7 KB37.2 KB
https://xelta.ai/_next/static/chunks/050ulb5j.jx1j.js10.2 KB27.3 KB
https://xelta.ai/_next/static/chunks/024fj8o14tb3b.js7.3 KB30.6 KB
https://xelta.ai/_next/static/chunks/turbopack-03fenzcryei4t.js6.6 KB19.5 KB
https://xelta.ai/_next/static/chunks/15_v~jewnj0mv.js10.2 KB45.5 KB
https://xelta.ai/_next/static/chunks/0y0ijhqmszjlv.js70.7 KB225.2 KB
https://xelta.ai/_next/static/chunks/0vh93s1co9ess.js41.7 KB148.7 KB
https://xelta.ai/_next/static/chunks/175jm~.6d92n1.js13.6 KB41.9 KB
https://www.googletagmanager.com/gtm.js?id=GTM-5XNS5NQ2113.2 KB315.0 KB
https://connect.facebook.net/en_US/fbevents.js108.9 KB400.1 KB
https://xelta.ai/_next/static/chunks/102paahwak0rm.js88.0 KB289.8 KB
https://xelta.ai/_next/static/chunks/0y1.630u7j4dm.js2.0 KB2.9 KB
https://xelta.ai/_next/static/chunks/0s-hc057f27fi.js10.2 KB36.1 KB
https://xelta.ai/_next/static/chunks/0.xma1o0r_dkq.js5.7 KB16.1 KB
https://us-assets.i.posthog.com/array/phc_tafs3TRoGdYdr8ar4Qrx2YD5kXgsSTDNWbMHDwMSwRno/config.js820 B815 B
https://xelta.ai/_next/static/chunks/03me1vhl_va-a.js3.3 KB7.3 KB
https://xelta.ai/_next/static/chunks/0u06n99x909vf.js37.3 KB115.8 KB
https://xelta.ai/_next/static/chunks/0.1p4mm-9.pce.js4.6 KB10.4 KB
https://connect.facebook.net/signals/config/1941936199799107.../194193619979910766.9 KB275.6 KB
https://xelta.ai/_next/static/chunks/0ievpx-j6z~1n.js784 B143 B
https://us-assets.i.posthog.com/static/1.418.10/surveys.js33.1 KB97.6 KB
warn(10)Don't scale images in the browseravoidScalingImages

The page has 9 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
infoAdd decoding="async" to non-critical imagesdecodingAsync

The page has 37 images (out of 72) without a decoding hint. Add decoding="async" to non-critical images so the browser can decode them off the main thread.

Setting decoding="async" on an <img> tells the browser it can decode the image off the main thread, which keeps the page responsive to user interactions while images are being processed. The default ("auto") leaves the choice to the browser. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#decoding

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

The total CSS transfer size is 79.8 kB and uncompressed size is 600.4 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/145xyk44994b_.css76.7 KB584.4 KB
https://xelta.ai/_next/static/chunks/08ak-dq81l91~.css1.2 KB2.0 KB
infoThe favicon should be small and cacheablefavicon

The favicon size is 663.8 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 811.7 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.

infoLong cache headers is goodcacheHeadersLong

The page has 40 requests that have a shorter cache time than one year (but still a cache time).

Setting a cache header is good. Setting a long cache header (a year) is even better because the asset will stay in the browser cache across visits. For content-hashed URLs (e.g. app.4af2.css) you can safely use Cache-Control: max-age=31536000, immutable. For unversioned URLs that may change, use a revalidating strategy instead.

Offenders
warn(67)Serve images in modern formats (AVIF, WebP)modernImageFormats

The page ships 1 image (out of 3) in JPEG/PNG/GIF without a modern alternative. Wrap them in a <picture> with a <source type="image/avif"> or "image/webp" before the legacy <img>, or serve modern formats from your image pipeline directly. AVIF and WebP usually deliver 25–50% smaller files at the same quality.

AVIF and WebP routinely deliver 25–50% smaller files than JPEG and PNG at the same perceived quality, and every browser version still under support understands at least one of them. Ship modern formats either through a <picture> element with <source type="image/avif"> / "image/webp" entries in front of the legacy <img>, or directly from a content-negotiating image pipeline that returns AVIF / WebP when the client accepts it. https://web.dev/articles/serve-images-webp

Offenders
warn(70)Don't use private headers on static contentprivateAssets

The page has 4 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
infoMake each CSS response smalloptimalCssSize

https://xelta.ai/_next/static/chunks/145xyk44994b_.css size is 78.5 kB (78514) 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/145xyk44994b_.css76.7 KB584.4 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(96)Avoid using incorrect mime typesmimeTypes

The page has 4 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 4 responses that sets both a max-age and expires header. There are 2 responses that sets a pragma no-cache header (that is a request header). There are 95 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 (15 requests and 555.1 kB). First party is 88 requests and 2.4 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 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 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

66
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 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
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 (13 requests with a size of 520.4 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 tag-manager requests and uses 1 tag-manager tool. The page do 6 survelliance requests and uses 4 survelliance tools. The page do 6 surveillance requests and uses 4 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 1 analytics request and uses 1 analytics 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.

TitlePrime Ad - AI ModelThe document title, shown in the browser tab and used by search results.
Layout viewport1395 × 5485 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 elements1,630Very 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 depth23The deepest nesting on the page. Deep branches cost more style recalculation.
Iframes0No embedded documents on this page.
Script tags74Number 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 storage52.2 KBData the page saved in localStorage, kept across visits.
Session storage569 BData kept in sessionStorage for this tab session only.
Connection type3GWhat 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

6 technologies

Third-party tools

14 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
Surveillance
  • Google Tag Manager
  • Facebook
  • Google Analytics
  • Other Google APIs/SDKs
Utility
  • Cloudflare
  • Other Google APIs/SDKs
Social
  • Facebook
Other
  • Amazon Web Services
Analytics
  • Google Analytics

Data from run 1

Visual Metrics

Visual milestones

all times from navigation start
Speed Index5.45 show quickly the page looked done
First Visual Change1.61 sfirst paint reaches the screen
Last Visual Change7.13 sscreen stops changing · 5.51 s after first
nothing painted yet
1.61 sFirst Visual Change
Visual Complete 85% · Visual Complete 95% · Visual Complete 99% · Last Visual Change7.09 s
Visual Readiness5.51 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 2.4 s2.4s
Visual progress at 3.2 s3.2s
Visual progress at 4 s4.0s
Visual progress at 4.7 s4.7s
Visual progress at 5.6 s5.6s
Visual progress at 6.4 s6.4s
Visual progress at 7.2 s7.2s
FCP1.76s
LCP7.26s
VC857.09s
Long tasks
0.0s1.4s2.9s4.3s5.8s7.2s

Google Web Vitals

from run 1
804 msTTFB
Needs improvement
239 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.

7.264 sLCP render time

Phase breakdown

  • TTFB804 ms
  • Resource load delay6.198 s
  • Resource load duration162 ms
  • Element render delay100 ms

Element

Element type
<div>
Size (w × h)
70632
URL
https://media.xelta....7554386-kygh.jpeg
Load time
7.199 s

DOM path

body > div#app-root > div:eq(0) > div
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.

0.014cumulative 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.

  • #10.009
  • #20.003
  • #30.002
  • #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

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 msHIT
cfEdge7 ms–
cfOrigin0 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 requests103
Total domains11
Transfer size2.8 MB
Content size6.4 MB
Missing compression0
Cookies50 third-party

Main document

status 200 · 0 redirects

https://xelta.ai/models/marketing/video-ad-generator-workflow

HeaderValue
age38189
alt-svch3=":443"; ma=86400
cache-controlprivate, max-age=604800, must-revalidate
cf-cache-statusHIT
cf-raya3007eec882d8997-DEL
content-encodingbr
content-typetext/html; charset=utf-8
dateMon, 24 Aug 2026 07:03:12 GMT
expect-ctmax-age=86400, enforce
last-modifiedSun, 23 Aug 2026 21:41:42 GMT
link</_next/static/media/83afe278b6a6bb3c-s.p.0q-301v4kxxnr.woff2>; rel=preload; as="font"; crossorigin=""; type="font/woff2"
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=E%2FdhnWGICgoHGqBI5oZqA21h%2BhFlqtFXFBvhvvkmXHfRUQXDlN2jCgZ8REr4sfLswVgbXCZKu6e5LygUXIm4X0NeSVZIefxvCS%2FS21MX07RS866eYh0fNbp0"}]}
servercloudflare
server-timingcfCacheStatus;desc="HIT" cfEdge;dur=7,cfOrigin;dur=0
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
9289.3%
204
43.9%
206
65.8%
401
11.0%

Largest assets on the page (by transfer size)

Top 20 of 103

Requests and sizes per content type

10 types

Transfer size2.8 MB

  • javascript42.8%
  • image28.3%
  • favicon22.6%
  • css2.7%
  • font1.7%
  • json0.99%
  • html0.81%
  • other0.11%
  • plain0.02%

Content size6.4 MB

  • javascript61.5%
  • image12.1%
  • favicon10.2%
  • css8.9%
  • video2.9%
  • html2.5%
  • json1.1%
  • font0.72%
  • other0.01%

Requests102

  • javascript46.1%
  • image26.5%
  • json8.8%
  • other5.9%
  • video5.9%
  • css2.0%
  • plain2.0%
  • html0.98%
  • font0.98%
  • favicon0.98%
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b23.2 KB167.1 KB1
css0 b77.9 KB586.3 KB2
javascript0 b1.2 MB3.9 MB47
image0 b811.9 KB792.6 KB27
font0 b47.7 KB47.3 KB1
favicon0 b648.3 KB668.8 KB1
other0 b3.3 KB796 B6
json0 b28.4 KB69.9 KB9
plain0 b571 B0 b2
video0 b0 b189.9 KB6
Total0 b2.8 MB6.4 MB102

Data per domain

11 domains
DomainTotal download timeTransfer SizeContent SizeRequests
xelta.ai152.183 s2.0 MB4.3 MB75
www.googletagmanager.com2.284 s296.1 KB866.6 KB2
static.cloudflareinsights.com1.075 s11.3 KB30.9 KB1
connect.facebook.net968 ms175.8 KB675.7 KB2
vygxif9kfe.execute-api.ap-south-1.amazonaws.com1.830 s24.6 KB67.2 KB6
analytics.google.com532 msN/A0 b1
pmt.xelta.ai1.145 s873 B1.3 KB2
cms-b.xelta.ai821 ms1.6 KB69 B2
media.xelta.ai2.829 s246.0 KB434.1 KB9
www.google.co.in594 ms408 B42 B1
us-assets.i.posthog.com1.423 s33.9 KB98.4 KB2

Expires & last-modified statistics

typeminmedianmax
Expires0 seconds1 week1 year
Last modified3 minutes1 day19 weeks

Requests loaded after onLoad event

62 requests

Includes requests done after load event end.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript474.5 KB13
image810.6 KB26
font0 b0
favicon648.3 KB1
plain571 B2
other2.8 KB5
json27.2 KB8
video0 b6
Total1.9 MB62

Requests loaded after onContentLoad

62 requests

Includes requests done after DOM content loaded.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript474.5 KB13
image810.6 KB26
font0 b0
favicon648.3 KB1
plain571 B2
other2.8 KB5
json27.2 KB8
video0 b6
Total1.9 MB62

CPU

https://xelta.ai/_next/static/chunks/0y0ijhqmszjlv.js is responsible for 49% of blocking time
146 ms of 298 ms total. Defer it, replace it with a lighter alternative, or move its work off the main thread to recover most of your TBT.
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.

TBT239 ms
Max potential input delay134 ms
Total long tasks9
Total time717 ms
Last task at9.183 s
Before first paint78 ms1 task
Before FCP78 ms1 task
Before LCP397 ms5 tasks
After load717 ms9 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 frames21showing the 10 with the most blocking time
Blocking time703 msacross all long frames — what hurts INP and TBT
Blocking before LCP254.6 msdelaying the largest paint — fix these first
Blocking after load623.1 msafter the load event — didn't delay page load
Input waiting2 framesa real interaction was delayed (INP)

What to fix first

ScriptFramesTime runningBlocking (share by run time)Forced style & layoutTriggered by
0y0ijhqmszjlv.js3213.9 ms146 ms–event handler
fbevents.js3rd party1134.2 ms85.5 ms–script tag
js3rd party181.1 ms26.3 ms–script tag
rocket-loader.min.js115.1 ms15.1 ms–script tag
19419361997991073rd party165.2 ms14.7 ms–script tag
v4513226cdae34746b4dedf0b4dfa099e17817915094963rd party110.3 ms10.3 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 · 199.4 msat 8.043 s · after load
blocking 149.4 ms
  • Scripts & other work199.4 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 #2 · 176.8 msat 7.053 s · before LCP
input was waitingblocking 108 ms
  • Scripts & other work146.7 ms
  • Animation callbacks28.8 ms
  • Style & layout1.3 ms
  • Render0 ms
1 script ran during this frame
Ran for
127.7 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 7855 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Long animation frame #3 · 137 msat 7.413 s · after load
blocking 86.2 ms
  • Scripts & other work135.3 ms
  • Animation callbacks1.2 ms
  • Style & layout0.5 ms
  • Render0 ms
1 script ran during this frame
fbevents.js3rd party
Ran for
134.2 ms
How it started
script tag
Long animation frame #4 · 133.3 msat 8.851 s · after load
blocking 80.5 ms
  • Scripts & other work132.2 ms
  • Animation callbacks0.2 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 #5 · 129.3 msat 6.327 s · before LCP
blocking 79.3 ms
  • Scripts & other work129.3 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 #6 · 100.7 msat 7.307 s · after load
input was waitingblocking 48.3 ms
  • Scripts & other work72.4 ms
  • Animation callbacks26.5 ms
  • Style & layout1.8 ms
  • Render0 ms
1 script ran during this frame
Ran for
70 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 7855 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Long animation frame #7 · 104.2 msat 1.599 s · before LCP
blocking 35.2 ms
  • Scripts & other work34.4 ms
  • Animation callbacks1.4 ms
  • Style & layout68.4 ms
  • Render0 ms
2 scripts ran during this frame
Ran for
15.1 ms
How it started
script tag
Ran for
10.3 ms
How it started
module script
Long animation frame #8 · 99.8 msat 6.574 s · before LCP
blocking 32.1 ms
  • Scripts & other work99 ms
  • Animation callbacks0.1 ms
  • Style & layout0.7 ms
  • Render0 ms
3 scripts ran during this frame
Ran for
9.9 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 7855 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
js3rd party
Ran for
81.1 ms
How it started
script tag
Ran for
6.3 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 7855 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Long animation frame #9 · 86 msat 7.553 s · after load
blocking 23 ms
  • Scripts & other work69.8 ms
  • Animation callbacks1.4 ms
  • Style & layout14.8 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 #10 · 73.3 msat 9.176 s · after load
blocking 16.3 ms
  • Scripts & other work72.2 ms
  • Animation callbacks0.1 ms
  • Style & layout1 ms
  • Render0 ms
1 script ran during this frame
Ran for
65.2 ms
How it started
script tag

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 requests19
Tools6
Categories6

Categories

6 categories

Requests by category19

  • survelliance6 req · 4 tools31.6%
  • other6 req · 1 tool31.6%
  • tag-manager2 req · 1 tool10.5%
  • utility2 req · 2 tools10.5%
  • social2 req · 1 tool10.5%
  • analytics1 req · 1 tool5.3%

Third party requests and tools

6 categories
tag-managerGoogle Tag Manager2 requests · 1 tool
survellianceGoogle Tag ManagerFacebookGoogle Analytics+ 1 more6 requests · 4 tools
utilityCloudflareOther Google APIs/SDKs2 requests · 2 tools
socialFacebook2 requests · 1 tool
otherAmazon Web Services6 requests · 1 tool
analyticsGoogle Analytics1 requests · 1 tool

Unmatched third party domains

1 domain

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

First party vs third party

88 first · 15 third party

Transfer size2.8 MB

  • First party2.3 MB81.1%
  • Third party542.1 KB18.9%

Content size6.4 MB

  • First party4.7 MB73.5%
  • Third party1.7 MB26.5%

Requests103

  • First party8885.4%
  • Third party1514.6%

First party requests and sizes per content type

88 requests

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

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b23.2 KB167.1 KB1
css0 b77.9 KB586.3 KB2
javascript0 b711.0 KB2.3 MB40
image0 b811.5 KB792.6 KB26
font0 b47.7 KB47.3 KB1
favicon0 b648.3 KB668.8 KB1
other0 b3.3 KB796 B5
json0 b4.6 KB2.7 KB5
plain0 b571 B0 b1
video0 b0 b189.9 KB6
TotalN/A2.3 MB4.7 MB88

Third party requests and sizes per content type

15 requests
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b0 b0 b0
javascript0 b517.1 KB1.6 MB7
image0 b408 B42 B1
font0 b0 b0 b0
favicon0 b0 b0 b0
other0 b0 b0 b1
plain0 b0 b0 b1
json0 b23.8 KB67.2 KB4
TotalN/A542.1 KB1.7 MB15