Page summary

https://xelta.ai/ai-studio/video-dubbing

Tested 2026-08-12 07:22:21 using Chrome 150.0.7871.46 (runtime settings)

SummaryWaterfallMetricsRenderingCoachPageXrayCPUThird party

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

74 / 100
Coach overall
78 / 100
Performance
81 / 100
Best practice
66 / 100
Privacy

How it loaded →

0 → 8.100 s · median run
Frame at 0 ms
start
Frame at 2200 ms
Largest paint2.200 s
Frame at 4600 ms
4.600 s
Frame at 5700 ms
5.700 s
Frame at 6900 ms
6.900 s
Frame at 8100 ms
Complete8.100 s
367 ms
First Visual Change
3.545 s
Speed Index
4.300 s
Visual Complete 85%
8.100 s
Last Visual Change
TTFB136 msLCP2.016 sTBT368 msCLS0.00

What to act on · top recommendations

Avoid using Google Tag Manager.

0 / 100

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

Avoid CPU Long Tasks

0 / 100

The page has 8 CPU long tasks with the total of 1.033 s. The total blocking time is 368 ms and 2 long tasks before first contentful paint with total time of 365 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.

Serve images in modern formats (AVIF, WebP)

0 / 100

The page ships 1 image (out of 1) 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.

Google Web Vitals

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Time To First Byte (TTFB)136 ms136 ms136 ms136 ms
Largest Contentful Paint (LCP)2.016 s2.016 s2.016 s2.016 s
Cumulative Layout Shift (CLS)0000

Visual Metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First visual change367 ms367 ms367 ms367 ms
Last visual change8.100 s8.100 s8.100 s8.100 s
Speed index3.545 s3.545 s3.545 s3.545 s
Visual readiness7.733 s7.733 s7.733 s7.733 s
Visual complete 854.300 s4.300 s4.300 s4.300 s
Visual complete 954.300 s4.300 s4.300 s4.300 s
Visual complete 994.533 s4.533 s4.533 s4.533 s

CPU

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Total Blocking Time368 ms368 ms368 ms368 ms
Max Potential FID163 ms163 ms163 ms163 ms
CPU long tasks 8888
CPU last long task happens at3.755 s3.755 s3.755 s3.755 s

More metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First paint784 ms784 ms784 ms784 ms
Load event end1.640 s1.640 s1.640 s1.640 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

60 frames

Use --filmstrip.showAll to show all filmstrips.

Frame at 0 ms
0 ms
0 %
Frame at 400 ms
400 ms
17 %
Frame at 500 ms
500 ms
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Frame at 600 ms
600 ms
17 %
Frame at 700 ms
700 ms
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Frame at 800 ms
800 ms
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Frame at 900 ms
900 ms
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Frame at 1.000 s
1.000 s
17 %
Frame at 1.700 s
1.700 s
17 %
Frame at 1.900 s
1.900 s
17 %
Frame at 2.000 s
2.000 s
17 %
Frame at 2.100 s
2.100 s
17 %
Frame at 2.200 s
2.200 s
17 %
Frame at 2.900 s
2.900 s
17 %
Frame at 3.200 s
3.200 s
17 %
Frame at 3.300 s
3.300 s
17 %
Frame at 3.700 s
3.700 s
17 %
Frame at 3.800 s
3.800 s
17 %
Frame at 4.000 s
4.000 s
59 %
Frame at 4.100 s
4.100 s
59 %
Frame at 4.200 s
4.200 s
59 %
Frame at 4.300 s
4.300 s
98 %
Frame at 4.400 s
4.400 s
98 %
Frame at 4.500 s
4.500 s
98 %
Frame at 4.600 s
4.600 s
99 %
Frame at 4.700 s
4.700 s
99 %
Frame at 4.800 s
4.800 s
99 %
Frame at 4.900 s
4.900 s
99 %
Frame at 5.000 s
5.000 s
99 %
Frame at 5.100 s
5.100 s
99 %
Frame at 5.200 s
5.200 s
99 %
Frame at 5.300 s
5.300 s
99 %
Frame at 5.400 s
5.400 s
99 %
Frame at 5.500 s
5.500 s
99 %
Frame at 5.600 s
5.600 s
99 %
Frame at 5.700 s
5.700 s
99 %
Frame at 5.800 s
5.800 s
99 %
Frame at 5.900 s
5.900 s
99 %
Frame at 6.000 s
6.000 s
99 %
Frame at 6.100 s
6.100 s
99 %
Frame at 6.200 s
6.200 s
99 %
Frame at 6.300 s
6.300 s
99 %
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
99 %
Frame at 7.800 s
7.800 s
99 %
Frame at 7.900 s
7.900 s
99 %
Frame at 8.000 s
8.000 s
99 %
Frame at 8.100 s
8.100 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?

First paint took 2.016 s. First paint landed at 2.016 s on a 136 ms first byte; the 2 render-blocking requests were done by 240 ms and the remaining ~1.776 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 · 75.4 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
xelta.ai · TTFB 136 ms
175 ms
26.1 KB170 ms
css · xelta.ai
79 ms
74.3 KB79 ms
css · xelta.ai
43 ms
1.1 KB43 ms
web font · xelta.ai
71 ms
47.8 KB71 ms
0504 ms1.008 sFCP · LCP 2.016 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

78
3 errors9 warnings3 info
warn(0)Avoid using Google Tag Manager.googleTagManager

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

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

warn(0)Avoid CPU Long TaskslongTasks

The page has 8 CPU long tasks with the total of 1.033 s. The total blocking time is 368 ms and 2 long tasks before first contentful paint with total time of 365 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
  • unknown
  • self
  • self
  • self
  • self
  • self
warn(0)Serve images in modern formats (AVIF, WebP)modernImageFormats

The page ships 1 image (out of 1) 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(0)Total JavaScript size shouldn't be too bigjavascriptSize

The total JavaScript transfer size is 1.1 MB and the uncompressed size is 3.8 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-CPG3NLBKHP183.3 KB555.5 KB
https://xelta.ai/_next/static/chunks/0~.kv2-e_~_9s.js5.4 KB16.6 KB
https://xelta.ai/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js4.4 KB12.0 KB
https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e178179150949611.3 KB30.9 KB
https://xelta.ai/_next/static/chunks/038qccvrxl2ix.js27.2 KB88.7 KB
https://xelta.ai/_next/static/chunks/0ia562az5l_iz.js11.5 KB39.1 KB
https://xelta.ai/_next/static/chunks/0.hhcoh.8gylt.js9.1 KB34.6 KB
https://xelta.ai/_next/static/chunks/0yxu~uncaclrn.js13.4 KB36.4 KB
https://xelta.ai/_next/static/chunks/02fvhu.~ed9tm.js43.6 KB140.7 KB
https://xelta.ai/_next/static/chunks/0i-plj_xxaw8z.js4.0 KB7.1 KB
https://xelta.ai/_next/static/chunks/04o1i7izpsjig.js23.5 KB71.3 KB
https://xelta.ai/_next/static/chunks/08vhp3.h~c4ew.js17.2 KB58.1 KB
https://xelta.ai/_next/static/chunks/0416tl3sj0yyp.js8.5 KB34.6 KB
https://xelta.ai/_next/static/chunks/0fb..7m5fmuc_.js10.0 KB27.9 KB
https://xelta.ai/_next/static/chunks/0fg44qzichqiw.js42.0 KB142.6 KB
https://xelta.ai/_next/static/chunks/06e425a78ll4h.js19.4 KB62.0 KB
https://xelta.ai/_next/static/chunks/026wu3uvh-5u1.js14.9 KB44.3 KB
https://xelta.ai/_next/static/chunks/0kc5itym_8jof.js15.8 KB63.5 KB
https://xelta.ai/_next/static/chunks/05x9au449bwyj.js16.2 KB60.7 KB
https://xelta.ai/_next/static/chunks/150ht8n--uthk.js9.2 KB31.3 KB
https://xelta.ai/_next/static/chunks/144c003qaudkf.js10.7 KB37.2 KB
https://xelta.ai/_next/static/chunks/06wcgib48d3i..js12.5 KB34.6 KB
https://xelta.ai/_next/static/chunks/138ifvdeqtp45.js7.7 KB20.3 KB
https://xelta.ai/_next/static/chunks/0.4x.j3tu010_.js7.8 KB21.3 KB
https://xelta.ai/_next/static/chunks/13ee4mpgt8ag..js9.9 KB25.7 KB
https://xelta.ai/_next/static/chunks/0zqqteuv74m7v.js10.8 KB29.0 KB
https://xelta.ai/_next/static/chunks/0m1n42o_6lbxp.js8.7 KB24.5 KB
https://xelta.ai/_next/static/chunks/turbopack-0~pcf.5cm94ui.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/09mu43cuo.9p8.js13.2 KB40.4 KB
https://connect.facebook.net/en_US/fbevents.js108.4 KB398.1 KB
https://xelta.ai/_next/static/chunks/0~7t.oplh-r0f.js82.9 KB273.9 KB
https://xelta.ai/_next/static/chunks/0oxjj2cw4l~r1.js4.1 KB7.2 KB
https://us-assets.i.posthog.com/array/phc_tafs3TRoGdYdr8ar4Qrx2YD5kXgsSTDNWbMHDwMSwRno/config.js812 B794 B
https://us-assets.i.posthog.com/static/surveys.js?v=1.415.233.2 KB97.6 KB
https://xelta.ai/_next/static/chunks/0_rx.lz25mu8k.js10.3 KB35.9 KB
https://xelta.ai/_next/static/chunks/0.xma1o0r_dkq.js5.7 KB16.1 KB
https://xelta.ai/_next/static/chunks/0kw34pdbu2.7q.js895 B304 B
https://xelta.ai/_next/static/chunks/07fg20z5gp6xs.js9.7 KB32.3 KB
https://connect.facebook.net/signals/config/1941936199799107.../194193619979910763.0 KB262.4 KB
https://xelta.ai/_next/static/chunks/0a41ov9xoezkw.js2.9 KB6.2 KB
https://xelta.ai/_next/static/chunks/0oyzftal04ylp.js35.5 KB108.7 KB
https://xelta.ai/_next/static/chunks/02oythncwwqg9.js14.7 KB41.8 KB
https://xelta.ai/_next/static/chunks/0t~dpv9j7jqud.js46.9 KB207.4 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 10.9 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
error(50)Have a fast first contentful paintfirstContentfulPaint

First contentful paint can be improved (2.016 s). It is in the Google Web Vitals needs improvement range, slower than 1.8 seconds.

The First Contentful Paint (FCP) metric measures the time from when the page starts loading to when any part of the page content is rendered on the screen. For this metric, "content" refers to text, images (including background images), <svg> elements, or non-white <canvas> elements.

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

The total CSS transfer size is 77.2 kB and uncompressed size is 579.8 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/03z62bxnic05n.css74.3 KB564.2 KB
https://xelta.ai/_next/static/chunks/08ak-dq81l91~.css1.1 KB2.0 KB
infoThe favicon should be small and cacheablefavicon

The favicon size is 663.7 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
infoLong cache headers is goodcacheHeadersLong

The page has 29 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(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
warn(80)Don't use private headers on static contentprivateAssets

The page has 2 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
infoMake each CSS response smalloptimalCssSize

https://xelta.ai/_next/static/chunks/03z62bxnic05n.css size is 76.1 kB (76128) 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/03z62bxnic05n.css74.3 KB564.2 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

81
2 warnings3 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 85 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 168 characters, the recommended max is 160

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

warn(50)Page titlepageTitle

The title is too long by 11 characters. The recommended max is 60

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

warn(50)Avoid too many third party requeststhirdParty

The page do 16% requests to third party domains (14 requests and 411.8 kB). First party is 75 requests and 2.2 MB. The regex .*xelta.* was used to calculate first/third party requests.

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

infoDo not send too long headerslongHeaders

https://xelta.ai/cdn-cgi/speculation has a header report-to that is 607 characters long. https://xelta.ai/_ne...ta.ai/_next/image has a header report-to that is 611 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 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
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 11% requests that are 3rd party (10 requests with a size of 376.6 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 Content Workflow Automation with Xelta | Streamline Content CreationThe document title, shown in the browser tab and used by search results.
Layout viewport1358 × 3322 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 elements1,074Large, watch layout costTotal HTML elements. Fewer means less for the browser to style, lay out and paint.
Avg DOM depth11How deeply elements are nested on average.
Max DOM depth17The deepest nesting on the page. Deep branches cost more style recalculation.
Iframes0No embedded documents on this page.
Script tags73Number 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 storage1.2 KBData the page saved in localStorage, kept across visits.
Session storage569 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

10 technologies

Third-party tools

17 tools

Data collected using Third Party Web version 0.29.2.

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
Utility
  • Cloudflare
  • Other Google APIs/SDKs
Social
  • Facebook
Other
  • Amazon Web Services
Analytics
  • Google Analytics
Ad
  • Google/Doubleclick Ads

Data from run 1

Visual Metrics

Visual milestones

all times from navigation start
Speed Index3.54 show quickly the page looked done
First Visual Change0.37 sfirst paint reaches the screen
Last Visual Change8.10 sscreen stops changing · 7.73 s after first
≥99%
0.37 sFirst Visual Change
4.30 sVisual Complete 85% · Visual Complete 95%
4.53 sVisual Complete 99%
Last Visual Change8.10 s
Visual Readiness7.73 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 1.7 s1.7s
Visual progress at 3.8 s3.8s
Visual progress at 4.7 s4.7s
Visual progress at 5.6 s5.6s
Visual progress at 6.4 s6.4s
Visual progress at 7.3 s7.3s
Visual progress at 8.1 s8.1s
FCP2.02s
LCP2.02s
VC854.30s
Long tasks
0.0s1.6s3.2s4.9s6.5s8.1s

Google Web Vitals

from run 1
136 msTTFB
Good
2.016 sFCP
Needs improvement
368 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.

2.016 sLCP render time

Phase breakdown

  • TTFB136 ms
  • Resource load delay0 ms
  • Resource load duration0 ms
  • Element render delay1.880 s

Element

Element type
<h1>
Size (w × h)
71672
Load time
0 ms

DOM path

body > div#app-root > div:eq(2) > section:eq(0) > div:eq(2) > h1
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.

0.000cumulative 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.

  • #10.000<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 msDYNAMIC
cfEdge27 ms
cfOrigin50 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 requests89
Total domains15
Transfer size2.5 MB
Content size6.3 MB
Missing compression0
Cookies30 third-party

Main document

status 200 · 0 redirects

https://xelta.ai/ai-studio/video-dubbing

HeaderValue
alt-svch3=":443"; ma=86400
cache-controls-maxage=50, stale-while-revalidate=31535950
cf-cache-statusDYNAMIC
cf-raya29dba926c35919d-DEL
content-encodingbr
content-typetext/html; charset=utf-8
dateWed, 12 Aug 2026 07:22:25 GMT
expect-ctmax-age=86400, enforce
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=%2BRn0Muw6dAE5k3t3XB%2FfH%2B2tOkVeO5nZlfj6YZ9%2FdNoBxMI1B4B8d7OGWPJl1iE%2FAq004AQEZ5L4hMqkG%2BLvK0Pf1fruXlQNtbDOLiATi2G6fdCKRGGyylWf"}]}
servercloudflare
server-timingcfCacheStatus;desc="DYNAMIC" cfEdge;dur=27,cfOrigin;dur=50
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
x-nextjs-stale-time300
x-xss-protection1; mode=block

Response codes

200
7382.0%
202
11.1%
204
77.9%
206
77.9%
401
11.1%

Largest assets on the page (by transfer size)

Top 20 of 89

Requests and sizes per content type

11 types

Transfer size2.5 MB

  • javascript43.8%
  • favicon25.4%
  • image19.2%
  • svg5.4%
  • css3.0%
  • font1.9%
  • html1.0%
  • json0.21%
  • video0.09%
  • plain0.05%
  • other0.05%

Content size6.3 MB

  • javascript58.0%
  • favicon10.4%
  • video8.9%
  • css8.8%
  • image7.5%
  • svg2.9%
  • html2.7%
  • font0.74%
  • json0.05%
  • other0.00%
  • plain0.00%

Requests88

  • javascript52.3%
  • image14.8%
  • video8.0%
  • json6.8%
  • plain6.8%
  • other3.4%
  • css2.3%
  • svg2.3%
  • html1.1%
  • font1.1%
  • favicon1.1%
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b26.1 KB173.5 KB1
css0 b75.4 KB566.2 KB2
javascript0 b1.1 MB3.6 MB46
image0 b490.3 KB480.8 KB13
font0 b47.8 KB47.3 KB1
favicon0 b648.2 KB668.8 KB1
other0 b1.3 KB151 B3
svg0 b137.1 KB184.9 KB2
video0 b2.3 KB571.9 KB7
json0 b5.5 KB3.4 KB6
plain0 b1.4 KB2 B6
Total0 b2.5 MB6.3 MB88

Data per domain

15 domains
DomainTotal download timeTransfer SizeContent SizeRequests
xelta.ai8.086 s2.0 MB4.3 MB62
www.googletagmanager.com390 ms183.3 KB555.5 KB1
static.cloudflareinsights.com114 ms11.3 KB30.9 KB1
media.xelta.ai1.867 s140.2 KB709.1 KB8
connect.facebook.net155 ms171.5 KB660.5 KB2
seob.xelta.ai738 ms909 B690 B1
vygxif9kfe.execute-api.ap-south-1.amazonaws.com215 ms843 B55 B2
www.google-analytics.com303 msN/A0 b1
analytics.google.com282 msN/A0 b1
stats.g.doubleclick.net146 ms553 B0 b1
www.google.co.in134 ms408 B42 B1
us-assets.i.posthog.com109 ms34.0 KB98.4 KB2
cms-b.xelta.ai204 ms1.6 KB69 B2
pmt.xelta.ai991 ms856 B1.3 KB2
telemetry.matchbestsoftware.online238 ms286 B2 B2

Expires & last-modified statistics

typeminmedianmax
Expires0 seconds4 weeks1 year
Last modified3 minutes19 hours22 weeks

Requests loaded after onLoad event

42 requests

Includes requests done after load event end.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript419.0 KB14
image489.0 KB12
font0 b0
favicon648.2 KB1
svg134.8 KB1
plain1.4 KB6
json4.2 KB5
other0 b2
Total1.7 MB42

Requests loaded after onContentLoad

47 requests

Includes requests done after DOM content loaded.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript419.0 KB14
image489.0 KB12
font0 b0
favicon648.2 KB1
video2.3 KB5
svg134.8 KB1
plain1.4 KB6
json4.2 KB5
other0 b2
Total1.7 MB47

CPU

https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP is responsible for 36% of blocking time
131 ms of 367 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.

TBT368 ms
Max potential input delay163 ms
Total long tasks8
Total time1.033 s
Last task at3.755 s
Before first paint0 ms0 tasks
Before FCP365 ms2 tasks
Before LCP365 ms2 tasks
After load1.033 s8 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 frames15showing the 10 with the most blocking time
Blocking time964 msacross all long frames — what hurts INP and TBT
Forced style & layout0.3 msscripts reading layout mid-frame
Blocking before LCP267.8 msdelaying the largest paint — fix these first
Blocking after load718.4 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 party2258.6 ms131.3 msscript tag, timer or animation callback
fbevents.js3rd party1140.5 ms90.5 msscript tag
0~.kv2-e_~_9s.js1124.3 ms58.1 msscript tag
0~7t.oplh-r0f.js196.5 ms44.2 msscript tag
0y0ijhqmszjlv.js353.9 ms31.3 ms0.3 msevent handler
rocket-loader.min.js18.7 ms8.7 msevent handler
turbopack-0~pcf.5cm94ui.js15.7 ms2.7 msscript tag

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 · 239.7 msat 1.630 s · before LCP
blocking 188.3 ms
  • Scripts & other work11.2 ms
  • Animation callbacks4.2 ms
  • Style & layout224.3 ms
  • Render0 ms
1 script ran during this frame
Ran for
8.7 ms
Started by
DOMWindow.onload
How it started
event handler
Position in source
character 8077 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Long animation frame #2 · 205.2 msat 2.793 s · after load
blocking 114.1 ms
  • Scripts & other work204.3 ms
  • Animation callbacks0.1 ms
  • Style & layout0.8 ms
  • Render0 ms
3 scripts ran during this frame · forced style & layout 0.3 ms
Ran for
8.7 ms
Forced style and layout
0.3 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)
Ran for
30 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
162.9 ms
How it started
script tag
Long animation frame #3 · 156.6 msat 2.273 s · after load
blocking 106.6 ms
  • Scripts & other work156.6 ms
  • Animation callbacks0 ms
  • Style & layout0 ms
  • Render0 ms

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

Long animation frame #4 · 145.5 msat 2.441 s · after load
blocking 95.5 ms
  • Scripts & other work145.5 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 #5 · 199.4 msat 3.211 s · after load
blocking 91.1 ms
  • Scripts & other work199 ms
  • Animation callbacks0.1 ms
  • Style & layout0.3 ms
  • Render0 ms
1 script ran during this frame
Ran for
96.5 ms
How it started
script tag
Long animation frame #6 · 140.6 msat 3.755 s · after load
blocking 90.5 ms
  • Scripts & other work140.6 ms
  • Animation callbacks0 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame
fbevents.js3rd party
Ran for
140.5 ms
How it started
script tag
Long animation frame #7 · 172.5 msat 1.880 s · before LCP
input was waitingblocking 79.5 ms
  • Scripts & other work170 ms
  • Animation callbacks2.5 ms
  • Style & layout0 ms
  • Render0 ms
2 scripts ran during this frame
Ran for
5.7 ms
How it started
script tag
Ran for
124.3 ms
How it started
script tag
Long animation frame #8 · 119.9 msat 2.152 s · after load
blocking 51.7 ms
  • Scripts & other work23.9 ms
  • Animation callbacks95.9 ms
  • Style & layout0.1 ms
  • Render0 ms
1 script ran during this frame
Ran for
5.6 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 · 110.5 msat 3.094 s · after load
blocking 46.3 ms
  • Scripts & other work109.9 ms
  • Animation callbacks0.5 ms
  • Style & layout0.1 ms
  • Render0 ms
2 scripts ran during this frame
Ran for
9.6 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
95.7 ms
Started by
TimerHandler:setTimeout
How it started
timer or animation callback
Long animation frame #10 · 93.1 msat 3.001 s · after load
blocking 43.1 ms
  • Scripts & other work93.1 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.

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 requests17
Tools7
Categories7

Categories

7 categories

Requests by category17

  • survelliance7 req · 5 tools41.2%
  • utility2 req · 2 tools11.8%
  • social2 req · 1 tool11.8%
  • other2 req · 1 tool11.8%
  • analytics2 req · 1 tool11.8%
  • tag-manager1 req · 1 tool5.9%
  • ad1 req · 1 tool5.9%

Third party requests and tools

7 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
otherAmazon Web Services2 requests · 1 tool
analyticsGoogle Analytics2 requests · 1 tool
adGoogle/Doubleclick Ads1 requests · 1 tool

Unmatched third party domains

2 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

First party vs third party

75 first · 14 third party

Transfer size2.5 MB

  • First party2.1 MB84.3%
  • Third party402.1 KB15.7%

Content size6.3 MB

  • First party5.0 MB79.0%
  • Third party1.3 MB21.0%

Requests89

  • First party7584.3%
  • Third party1415.7%

First party requests and sizes per content type

75 requests

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

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b26.1 KB173.5 KB1
css0 b75.4 KB566.2 KB2
javascript0 b719.0 KB2.3 MB40
image0 b489.9 KB480.8 KB12
font0 b47.8 KB47.3 KB1
favicon0 b648.2 KB668.8 KB1
other0 b1.3 KB151 B2
svg0 b137.1 KB184.9 KB2
video0 b2.3 KB571.9 KB7
json0 b5.5 KB3.4 KB6
plain0 b571 B0 b1
TotalN/A2.1 MB5.0 MB75

Third party requests and sizes per content type

14 requests
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b0 b0 b0
javascript0 b400.1 KB1.3 MB6
image0 b408 B42 B1
font0 b0 b0 b0
favicon0 b0 b0 b0
other0 b0 b0 b1
plain0 b839 B2 B5
TotalN/A402.1 KB1.3 MB14