Page summary

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

Tested 2026-09-15 15:29:08 using Chrome 150.0.7871.46 (runtime settings)

SummaryWaterfallMetricsRenderingCoachPageXrayCPUThird party

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

78 / 100
Coach overall
81 / 100
Performance
82 / 100
Best practice
72 / 100
Privacy

How it loaded →

0 → 5.467 s · median run
Frame at 0 ms
start
Frame at 1700 ms
Largest paint1.700 s
Frame at 2600 ms
2.600 s
Frame at 3600 ms
3.600 s
Frame at 4500 ms
4.500 s
Frame at 5500 ms
Complete5.500 s
900 ms
First Visual Change
1.470 s
Speed Index
2.233 s
Visual Complete 85%
5.467 s
Last Visual Change
TTFB52 msLCP1.076 sTBT544 msCLS0.13

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 12 CPU long tasks with the total of 1.237 s. The total blocking time is 544 ms and 3 long tasks before first contentful paint with total time of 243 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your long tasks.

Avoid too many fonts

0 / 100

The page has 11 font requests. Do you really need them? What value does the fonts give the user?

Google Web Vitals

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Time To First Byte (TTFB)52 ms52 ms52 ms52 ms
Largest Contentful Paint (LCP)1.076 s1.076 s1.076 s1.076 s
Cumulative Layout Shift (CLS)0.13140.13140.13140.1314

Visual Metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First visual change900 ms900 ms900 ms900 ms
Last visual change5.467 s5.467 s5.467 s5.467 s
Speed index1.470 s1.470 s1.470 s1.470 s
Visual readiness4.567 s4.567 s4.567 s4.567 s
Visual complete 852.233 s2.233 s2.233 s2.233 s
Visual complete 954.900 s4.900 s4.900 s4.900 s
Visual complete 995.467 s5.467 s5.467 s5.467 s

CPU

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Total Blocking Time544 ms544 ms544 ms544 ms
Max Potential FID214 ms214 ms214 ms214 ms
CPU long tasks 12121212
CPU last long task happens at2.664 s2.664 s2.664 s2.664 s

More metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First paint1.016 s1.016 s1.016 s1.016 s
Load event end1.057 s1.057 s1.057 s1.057 s

User Timing

min · median · mean · max of 1 run
MetricMinMedianMeanMax
GTM-5XNS5NQ2:150 ms0 ms0 ms0 ms
GTM-5XNS5NQ2:171.563 s1.563 s1.563 s1.563 s
GTM-5XNS5NQ2:42.089 s2.089 s2.089 s2.089 s
GTM-5XNS5NQ2:82.104 s2.104 s2.104 s2.104 s
GTM-5XNS5NQ2:32.105 s2.105 s2.105 s2.105 s
GTM-5XNS5NQ2:22.112 s2.112 s2.112 s2.112 s
GTM-5XNS5NQ2:72.112 s2.112 s2.112 s2.112 s
GTM-5XNS5NQ2:1:132.114 s2.114 s2.114 s2.114 s
GTM-5XNS5NQ2:1:112.116 s2.116 s2.116 s2.116 s
GTM-5XNS5NQ2:1:102.116 s2.116 s2.116 s2.116 s
GTM-5XNS5NQ2:1:122.117 s2.117 s2.117 s2.117 s
GTM-5XNS5NQ2:2:132.118 s2.118 s2.118 s2.118 s
GTM-5XNS5NQ2:2:112.119 s2.119 s2.119 s2.119 s
GTM-5XNS5NQ2:2:102.119 s2.119 s2.119 s2.119 s
GTM-5XNS5NQ2:2:122.119 s2.119 s2.119 s2.119 s
GTM-5XNS5NQ2:3:132.121 s2.121 s2.121 s2.121 s
GTM-5XNS5NQ2:3:112.125 s2.125 s2.125 s2.125 s
GTM-5XNS5NQ2:3:102.125 s2.125 s2.125 s2.125 s
GTM-5XNS5NQ2:3:122.125 s2.125 s2.125 s2.125 s
GTM-5XNS5NQ2:4:132.126 s2.126 s2.126 s2.126 s
GTM-5XNS5NQ2:52.139 s2.139 s2.139 s2.139 s
GTM-5XNS5NQ2:6:132.141 s2.141 s2.141 s2.141 s
GTM-5XNS5NQ2:6:112.141 s2.141 s2.141 s2.141 s
GTM-5XNS5NQ2:6:102.141 s2.141 s2.141 s2.141 s
GTM-5XNS5NQ2:6:122.141 s2.141 s2.141 s2.141 s
GTM-5XNS5NQ2:7:132.142 s2.142 s2.142 s2.142 s
GTM-5XNS5NQ2:7:112.143 s2.143 s2.143 s2.143 s
GTM-5XNS5NQ2:7:102.144 s2.144 s2.144 s2.144 s
GTM-5XNS5NQ2:7:122.144 s2.144 s2.144 s2.144 s
GTM-5XNS5NQ2:1:92.146 s2.146 s2.146 s2.146 s
GTM-5XNS5NQ2:2:92.147 s2.147 s2.147 s2.147 s
GTM-5XNS5NQ2:3:92.151 s2.151 s2.151 s2.151 s
GTM-5XNS5NQ2:6:92.151 s2.151 s2.151 s2.151 s
GTM-5XNS5NQ2:7:92.157 s2.157 s2.157 s2.157 s
GTM-5XNS5NQ2:62.157 s2.157 s2.157 s2.157 s

Waterfall

Run 1 SpeedIndex median

First paintFCPLCPDOMContentLoadedDOM interactiveLoadRender-blockingRedirectError

Rendering

Run 1 · median
0.000 s
0s1s2s3s4s5s

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

Download video

Filmstrip

49 frames

Use --filmstrip.showAll to show all filmstrips.

Frame at 0 ms
0 ms
0 %
Frame at 800 ms
800 ms
0 %
Frame at 900 ms
900 ms
15 %
Frame at 1.000 s
1.000 s
63 %
Frame at 1.100 s
1.100 s
81 %
Frame at 1.200 s
1.200 s
81 %
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
81 %
Frame at 1.700 s
1.700 s
81 %
Frame at 1.800 s
1.800 s
81 %
Frame at 1.900 s
1.900 s
81 %
Frame at 2.000 s
2.000 s
81 %
Frame at 2.100 s
2.100 s
80 %
Frame at 2.200 s
2.200 s
83 %
Frame at 2.300 s
2.300 s
89 %
Frame at 2.400 s
2.400 s
88 %
Frame at 2.500 s
2.500 s
89 %
Frame at 2.600 s
2.600 s
92 %
Frame at 2.700 s
2.700 s
93 %
Frame at 2.800 s
2.800 s
93 %
Frame at 2.900 s
2.900 s
93 %
Frame at 3.000 s
3.000 s
93 %
Frame at 3.100 s
3.100 s
93 %
Frame at 3.200 s
3.200 s
93 %
Frame at 3.300 s
3.300 s
93 %
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
93 %
Frame at 3.800 s
3.800 s
93 %
Frame at 3.900 s
3.900 s
93 %
Frame at 4.000 s
4.000 s
93 %
Frame at 4.100 s
4.100 s
93 %
Frame at 4.200 s
4.200 s
93 %
Frame at 4.300 s
4.300 s
93 %
Frame at 4.400 s
4.400 s
93 %
Frame at 4.500 s
4.500 s
93 %
Frame at 4.600 s
4.600 s
89 %
Frame at 4.700 s
4.700 s
90 %
Frame at 4.800 s
4.800 s
90 %
Frame at 4.900 s
4.900 s
95 %
Frame at 5.000 s
5.000 s
96 %
Frame at 5.100 s
5.100 s
96 %
Frame at 5.200 s
5.200 s
97 %
Frame at 5.300 s
5.300 s
97 %
Frame at 5.400 s
5.400 s
97 %
Frame at 5.500 s
5.500 s
100 %

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

Why was rendering delayed?

Rendering was not meaningfully delayed. First paint landed at 1.016 s on a 52 ms first byte.

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

Render blocking requests

26 requests · 438.2 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 52 ms
584 ms
35.6 KB583 ms
3dlul65aa-nvq.jspotentially blocking
javascript · xelta.ai
194 ms
73.3 KB194 ms
32kihcmlsdsfi.jspotentially blocking
javascript · xelta.ai
187 ms
24.0 KB187 ms
0vz2ui03c405v.jspotentially blocking
javascript · xelta.ai
186 ms
23.0 KB186 ms
0r_-zfn80zo41.jspotentially blocking
javascript · xelta.ai
186 ms
2.3 KB186 ms
2a025agb5gt5q.jspotentially blocking
javascript · xelta.ai
184 ms
5.5 KB184 ms
3tp_64t1vqxo7.jspotentially blocking
javascript · xelta.ai
184 ms
12.1 KB184 ms
21qxs2_9klwty.jspotentially blocking
javascript · xelta.ai
184 ms
1.8 KB184 ms
26--kr-ciax9i.jspotentially blocking
javascript · xelta.ai
184 ms
42.8 KB184 ms
18 more requests
all done by 788 ms
253.2 KB
LCP resource
image — downloaded by 900 ms, rendered at 1.076 s
302 ms
13.9 KB302 ms
web font · xelta.ai
181 ms
37.0 KB181 ms
web font · xelta.ai
184 ms
35.0 KB184 ms
web font · xelta.ai
181 ms
8.1 KB181 ms
0269 ms538 msFCP 1.016 sFCP · LCP 1.076 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.

What to fix first

Performance advice

81
1 error8 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 12 CPU long tasks with the total of 1.237 s. The total blocking time is 544 ms and 3 long tasks before first contentful paint with total time of 243 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
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  • self
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infoAvoid too many fontsfewFonts
warn(0)Total JavaScript size shouldn't be too bigjavascriptSize

The total JavaScript transfer size is 1.5 MB and the uncompressed size is 4.7 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/3dlul65aa-nvq.js73.3 KB232.0 KB
https://xelta.ai/_next/static/chunks/3sy5ezjqwbusz.js48.8 KB171.2 KB
https://xelta.ai/_next/static/chunks/turbopack-24c8re3t_hr9w.js6.6 KB18.4 KB
https://xelta.ai/_next/static/chunks/07mvt07vqohm6.js6.5 KB20.4 KB
https://xelta.ai/_next/static/chunks/2uoulaw6kucli.js10.1 KB26.2 KB
https://xelta.ai/_next/static/chunks/1321f5pb3peoq.js8.4 KB33.9 KB
https://xelta.ai/_next/static/chunks/1vr-_-ai-9wxy.js8.0 KB21.0 KB
https://xelta.ai/_next/static/chunks/36h4r9duhyjke.js11.1 KB37.2 KB
https://xelta.ai/_next/static/chunks/0v-y_275lo0v3.js10.8 KB29.1 KB
https://xelta.ai/_next/static/chunks/1j2emy2xhevk5.js6.7 KB15.0 KB
https://xelta.ai/_next/static/chunks/2f2i__v854m6r.js9.2 KB30.0 KB
https://xelta.ai/_next/static/chunks/00up96pc24a4e.js10.4 KB25.8 KB
https://xelta.ai/_next/static/chunks/1rttzs2jjmcrm.js44.0 KB140.6 KB
https://xelta.ai/_next/static/chunks/0d5x-evebgw5x.js13.1 KB34.8 KB
https://xelta.ai/_next/static/chunks/26--kr-ciax9i.js42.8 KB141.9 KB
https://xelta.ai/_next/static/chunks/2qwl8sgb3v89v.js19.7 KB62.0 KB
https://xelta.ai/_next/static/chunks/3scmkth2l2ag2.js15.2 KB43.9 KB
https://xelta.ai/_next/static/chunks/3oaofhkz-cnbr.js11.1 KB30.7 KB
https://xelta.ai/_next/static/chunks/3tp_64t1vqxo7.js12.1 KB33.0 KB
https://xelta.ai/_next/static/chunks/0vz2ui03c405v.js23.0 KB67.6 KB
https://xelta.ai/_next/static/chunks/32kihcmlsdsfi.js24.0 KB77.8 KB
https://xelta.ai/_next/static/chunks/21qxs2_9klwty.js1.8 KB1.4 KB
https://xelta.ai/_next/static/chunks/2a025agb5gt5q.js5.5 KB14.4 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://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/1p_d3vq1nz57f.js1.2 KB254 B
https://xelta.ai/_next/static/chunks/34zqwff648hvy.js10.7 KB33.9 KB
https://www.googletagmanager.com/gtm.js?id=GTM-5XNS5NQ2115.1 KB324.4 KB
https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP186.9 KB569.5 KB
https://connect.facebook.net/en_US/fbevents.js110.6 KB410.6 KB
https://xelta.ai/_next/static/chunks/1ki4hltmjvw2d.js77.6 KB253.9 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://us-assets.i.posthog.com/array/phc_tafs3TRoGdYdr8ar4Qrx2YD5kXgsSTDNWbMHDwMSwRno/config.js821 B815 B
https://connect.facebook.net/signals/config/1123404090023729.../1123404090023729139.1 KB492.2 KB
https://us-assets.i.posthog.com/static/surveys.js?v=1.399.033.7 KB101.5 KB
https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP&cx=c&gtm=4e69b1186.9 KB569.5 KB
https://xelta.ai/_next/static/chunks/28r3ari2she5h.js1.2 KB217 B
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 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
warn(50)Total CSS size shouldn't be too bigcssSize

The total CSS transfer size is 93 kB and uncompressed size is 692.4 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/2g4mn0glyp7jt.css86.9 KB640.0 KB
https://xelta.ai/_next/static/chunks/0kldb6fnstui0.css3.9 KB36.2 KB
warn(60)Don't scale images in the browseravoidScalingImages

The page has 4 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(60)Don't use private headers on static contentprivateAssets

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

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

Offenders
infoLong cache headers is goodcacheHeadersLong
infoMake each CSS response smalloptimalCssSize

https://xelta.ai/_next/static/chunks/2g4mn0glyp7jt.css size is 89 kB (88968) 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/2g4mn0glyp7jt.css86.9 KB640.0 KB
warn(95)Inline CSS for faster first renderinlineCss

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

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

error(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

82
1 error1 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 94 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
error(50)Cumulative Layout ShiftcumulativeLayoutShift

You have a cumulative layout shift score (0.1314) that needs improvements. It is in the Google Web Vitals needs improvement range, shift higher than 0.1. You should manually check the filmstrip or video and check if it will affect the user.

Cumulative Layout Shift measures the sum total of all individual layout shift scores for unexpected layout shift that occur. The metric is measuring visual stability by quantify how often users experience unexpected layout shifts. It is one of Google Web Vitals.

warn(50)Avoid too many third party requeststhirdParty

The page do 18% requests to third party domains (17 requests and 803.5 kB). First party is 79 requests and 1.4 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/ai-studio/ai-swapper has a header link that is 1927 characters long. https://xelta.ai/_ne...h2vc0w-r-ll.woff2 has a header content-security-policy-report-only that is 799 characters long. https://xelta.ai/_ne...h2vc0w-r-ll.woff2 has a header report-to that is 611 characters long. https://xelta.ai/_ne...ta.ai/_next/image has a header content-security-policy-report-only that is 799 characters long. https://xelta.ai/_ne...ta.ai/_next/image has a header report-to that is 613 characters long. https://xelta.ai/_ne...ta.ai/_next/image has a header content-security-policy-report-only that is 799 characters long. https://xelta.ai/_ne...ta.ai/_next/image has a header report-to that is 607 characters long. https://xelta.ai/api...cms/announcements has a header content-security-policy-report-only that is 798 characters long. https://xelta.ai/api...cms/announcements has a header report-to that is 606 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. https://xelta.ai/_ne...ta.ai/_next/image has a header content-security-policy-report-only that is 798 characters long. https://xelta.ai/_ne...ta.ai/_next/image has a header report-to that is 608 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/api...nts/active-banner has 33 headers.https://xelta.ai/api...cms/announcements has 34 headers.https://xelta.ai/api/geo has 32 headers.

Avoid send too many response headers.

Offenders

Privacy advice

72
5 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 (11 requests with a size of 767.5 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 4 tag-manager requests and uses 1 tag-manager tool. The page do 10 survelliance requests and uses 5 survelliance tools. The page do 10 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(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.

TitleAi Studio Ai SwapperThe document title, shown in the browser tab and used by search results.
Layout viewport1350 × 3510 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 elements1,616Very large, slows layout and styleTotal HTML elements. Fewer means less for the browser to style, lay out and paint.
Avg DOM depth10How deeply elements are nested on average.
Max DOM depth16The deepest nesting on the page. Deep branches cost more style recalculation.
Iframes1Embedded documents. Each is a separate page the browser loads and renders.
Script tags55Number 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 storage1.6 KBData 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

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

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 Index1.47 show quickly the page looked done
First Visual Change0.90 sfirst paint reaches the screen
Last Visual Change5.47 sscreen stops changing · 4.57 s after first
≥85%
≥95% rendered
0.90 sFirst Visual Change
2.23 sVisual Complete 85%
Visual Complete 95%4.90 s
Visual Complete 99% · Last Visual Change5.47 s
Visual Readiness4.57 s· first to last change
01.0 s2.0 s3.0 s4.0 s5.0 s
Content milestones
Perception index
Visual progress
Visual progress at 0 s0.0s
Visual progress at 1.4 s1.4s
Visual progress at 2.1 s2.1s
Visual progress at 2.8 s2.8s
Visual progress at 3.4 s3.4s
Visual progress at 4.1 s4.1s
Visual progress at 4.8 s4.8s
Visual progress at 5.5 s5.5s
FCP1.02s
LCP1.08s
VC852.23s
Long tasks
0.0s1.1s2.2s3.3s4.4s5.5s

Google Web Vitals

from run 1
52 msTTFB
Good
0.13CLS
Needs improvement
544 msTBT
Needs improvement

Largest Contentful Paint

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

1.076 sLCP render time

Phase breakdown

  • TTFB52 ms
  • Resource load delay541 ms
  • Resource load duration313 ms
  • Element render delay170 ms

Element

Size (w × h)
319532
URL
https://xelta.ai/_ne...ta.ai/_next/image
Load time
914 ms
LCP

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

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.

0.131cumulative 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.

  • #10.001<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-40vw) translateZ(-200px) rotateY(40deg) scale(0.92); z-index: 8;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>,<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-20vw) translateZ(-100px) rotateY(20deg) scale(0.92); z-index: 9;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>
    body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(0),body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(1)
  • #20.001<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-40vw) translateZ(-200px) rotateY(40deg) scale(0.92); z-index: 8;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>,<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-20vw) translateZ(-100px) rotateY(20deg) scale(0.92); z-index: 9;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>
    body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(0),body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(1)
  • #30.001<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-40vw) translateZ(-200px) rotateY(40deg) scale(0.92); z-index: 8;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>
    body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(0)
  • #40.001<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-20vw) translateZ(-100px) rotateY(20deg) scale(0.92); z-index: 9;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>
    body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(1)
  • #50.001<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-20vw) translateZ(-100px) rotateY(20deg) scale(0.92); z-index: 9;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>
    body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(1)
  • #60.001<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-20vw) translateZ(-100px) rotateY(20deg) scale(0.92); z-index: 9;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>
    body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(1)
  • #70.001<div role="button" tabindex="0" style="width: 25vw; height: 72vh; transform: translateX(-40vw) translateZ(-200px) rotateY(40deg) scale(0.92); z-index: 8;" class="jsx-c9e7ec294036e423 absolute transition-all duration-1000 ease-out cursor-pointer"></div>
    body > div#app-root > div:eq(1) > section:eq(0) > div:eq(3) > div > div:eq(0)
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-5XNS5NQ2:150 ms
GTM-5XNS5NQ2:171.563 s
GTM-5XNS5NQ2:42.089 s
GTM-5XNS5NQ2:82.104 s
GTM-5XNS5NQ2:32.105 s
GTM-5XNS5NQ2:22.112 s
GTM-5XNS5NQ2:72.112 s
GTM-5XNS5NQ2:1:132.114 s
GTM-5XNS5NQ2:1:112.116 s
GTM-5XNS5NQ2:1:102.116 s
GTM-5XNS5NQ2:1:122.117 s
GTM-5XNS5NQ2:2:132.118 s
GTM-5XNS5NQ2:2:112.119 s
GTM-5XNS5NQ2:2:102.119 s
GTM-5XNS5NQ2:2:122.119 s
GTM-5XNS5NQ2:3:132.121 s
GTM-5XNS5NQ2:3:112.125 s
GTM-5XNS5NQ2:3:102.125 s
GTM-5XNS5NQ2:3:122.125 s
GTM-5XNS5NQ2:4:132.126 s
GTM-5XNS5NQ2:52.139 s
GTM-5XNS5NQ2:6:132.141 s
GTM-5XNS5NQ2:6:112.141 s
GTM-5XNS5NQ2:6:102.141 s
GTM-5XNS5NQ2:6:122.141 s
GTM-5XNS5NQ2:7:132.142 s
GTM-5XNS5NQ2:7:112.143 s
GTM-5XNS5NQ2:7:102.144 s
GTM-5XNS5NQ2:7:122.144 s
GTM-5XNS5NQ2:1:92.146 s
GTM-5XNS5NQ2:2:92.147 s
GTM-5XNS5NQ2:3:92.151 s
GTM-5XNS5NQ2:6:92.151 s
GTM-5XNS5NQ2:7:92.157 s
GTM-5XNS5NQ2:62.157 s
User Timing measures
GTM-5XNS5NQ2:15:170 msduration 1.563 s
GTM-5XNS5NQ2:4:32.089 sduration 16 ms
GTM-5XNS5NQ2:8:72.104 sduration 8 ms
GTM-5XNS5NQ2:2:52.112 sduration 27 ms
GTM-5XNS5NQ2:2:62.112 sduration 45 ms
GTM-5XNS5NQ2:1:13:122.114 sduration 3 ms
GTM-5XNS5NQ2:1:13:92.114 sduration 33 ms
GTM-5XNS5NQ2:1:11:102.116 sduration 1 ms
GTM-5XNS5NQ2:2:13:122.118 sduration 1 ms
GTM-5XNS5NQ2:2:13:92.118 sduration 29 ms
GTM-5XNS5NQ2:2:11:102.119 sduration 0 ms
GTM-5XNS5NQ2:3:13:122.121 sduration 5 ms
GTM-5XNS5NQ2:3:13:92.121 sduration 30 ms
GTM-5XNS5NQ2:3:11:102.125 sduration 0 ms
GTM-5XNS5NQ2:6:13:122.141 sduration 0 ms
GTM-5XNS5NQ2:6:13:92.141 sduration 10 ms
GTM-5XNS5NQ2:6:11:102.141 sduration 0 ms
GTM-5XNS5NQ2:7:13:122.142 sduration 3 ms
GTM-5XNS5NQ2:7:13:92.142 sduration 16 ms
GTM-5XNS5NQ2:7:11:102.143 sduration 0 ms

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
cfEdge14 ms–
cfOrigin498 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 requests96
Total domains12
Transfer size2.1 MB
Content size5.9 MB
Missing compression0
Cookies41 third-party

Main document

status 200 · 0 redirects

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

HeaderValue
alt-svch3=":443"; ma=86400
cache-controlprivate, no-cache, no-store, max-age=0, must-revalidate
cf-cache-statusDYNAMIC
cf-raya3b8aa55ddbc5993-DEL
content-encodingbr
content-security-policydefault-src 'self'; script-src 'self' 'nonce-bnvO78OSVsp8JR4O7ClqNQ==' 'strict-dynamic' 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:; 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:; 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
dateTue, 15 Sep 2026 15:29:10 GMT
expect-ctmax-age=86400, enforce
link</_next/static/media/47fe1b7cd6e6ed85-s.p.3bh2vc0w-r-ll.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/83afe278b6a6bb3c-s.p.2bn3s6zvc0dyp.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/8dfd6563338cbf38-s.p.2uos8jt9rp249.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/8e6fa89aa22d24ec-s.p.2o7m9ogm38dql.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/9d0c71fa164043fa-s.p.2snziqcncuet5.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/9e9f04e3c37952ab-s.p.0pan85mumqyf3.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/a218039a3287bcfd-s.p.43zbiuwnnoiok.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/c875c6f5d3e977ac-s.p.1h18_wedhzk4h.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/ce62453a442c7f35-s.p.0a0h245ktd4x0.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/e2334d715941921e-s.p.3o_v2fun1jzxk.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/media/e8f2fbee2754df70-s.p.1dqa_6e_ad4sj.woff2>; rel=preload; as="font"; crossorigin=""; nonce="bnvO78OSVsp8JR4O7ClqNQ=="; type="font/woff2", </_next/static/chunks/2g4mn0glyp7jt.css>; rel=preload; as="style"; nonce="bnvO78OSVsp8JR4O7ClqNQ==", </_next/static/chunks/0kldb6fnstui0.css>; rel=preload; as="style"; nonce="bnvO78OSVsp8JR4O7ClqNQ=="
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=LL7xFieIGTGrNFndY82FbY1rpmmjt2iu34X6%2Bmlt3OGWPLzwg8nwSFp9uqySx682bmSLkD6e%2FPeCVdXWg5zJM72hL6AzfsLgQ9cfp8%2F0sireWan6orH94Eus"}]}
servercloudflare
server-timingcfCacheStatus;desc="DYNAMIC" cfEdge;dur=14,cfOrigin;dur=498
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
9194.8%
202
11.0%
204
44.2%

Largest assets on the page (by transfer size)

Top 20 of 96

Requests and sizes per content type

9 types

Transfer size2.1 MB

  • javascript67.5%
  • font14.6%
  • image10.8%
  • css4.3%
  • html1.7%
  • json0.55%
  • favicon0.45%
  • plain0.07%
  • other0.03%

Content size5.9 MB

  • javascript76.0%
  • css11.3%
  • font5.1%
  • html4.0%
  • image3.5%
  • favicon0.14%
  • json0.05%
  • other0.00%
  • plain0.00%

Requests96

  • javascript47.9%
  • image19.8%
  • font11.5%
  • json8.3%
  • plain6.3%
  • html2.1%
  • css2.1%
  • favicon1.0%
  • other1.0%
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b35.6 KB239.2 KB2
css0 b90.8 KB676.2 KB2
javascript0 b1.4 MB4.4 MB46
image0 b230.0 KB206.8 KB19
font0 b310.0 KB304.1 KB11
favicon0 b9.6 KB8.3 KB1
other0 b599 B151 B1
json0 b11.7 KB2.8 KB8
plain0 b1.4 KB2 B6
Total0 b2.1 MB5.9 MB96

Data per domain

12 domains
DomainTotal download timeTransfer SizeContent SizeRequests
xelta.ai13.516 s1.3 MB3.4 MB79
static.cloudflareinsights.com89 ms10.1 KB29.6 KB1
www.googletagmanager.com1.053 s488.9 KB1.4 MB4
connect.facebook.net534 ms249.6 KB902.8 KB2
us-assets.i.posthog.com123 ms34.5 KB102.3 KB2
analytics.google.com318 msN/A0 b1
stats.g.doubleclick.net162 ms553 B0 b1
www.google.co.in172 ms408 B42 B1
mpc-prod-27-s6uit34pua-uk.a.run.app415 msN/A0 b1
us.i.posthog.com1.060 s286 B15 B1
telemetry.matchbestsoftware.online184 ms286 B2 B2
www.facebook.com98 msN/A0 b1

Expires & last-modified statistics

typeminmedianmax
Expires0 seconds1 year1 year
Last modified3 minutes21 hours2 weeks

Requests loaded after onLoad event

39 requests

Includes requests done after load event end.

ContentTransfer SizeRequests
html59 B1
css0 b0
javascript978.9 KB18
image53.5 KB6
font0 b0
favicon9.6 KB1
plain1.4 KB6
json9.8 KB7
Total1.0 MB39

Requests loaded after onContentLoad

50 requests

Includes requests done after DOM content loaded.

ContentTransfer SizeRequests
html59 B1
css0 b0
javascript978.9 KB18
image214.3 KB17
font0 b0
favicon9.6 KB1
plain1.4 KB6
json9.8 KB7
Total1.2 MB50

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.

TBT544 ms
Max potential input delay214 ms
Total long tasks12
Total time1.237 s
Last task at2.664 s
Before first paint243 ms3 tasks
Before FCP243 ms3 tasks
Before LCP243 ms3 tasks
After load994 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 frames12showing the 10 with the most blocking time
Blocking time703.9 msacross all long frames — what hurts INP and TBT
Forced style & layout0.6 msscripts reading layout mid-frame
Blocking before LCP134.3 msdelaying the largest paint — fix these first
Blocking after load554.4 msafter the load event — didn't delay page load

What to fix first

ScriptFramesTime runningBlocking (share by run time)Forced style & layoutTriggered by
11234040900237293rd party1214.5 ms159.5 ms0.6 msscript tag
3dlul65aa-nvq.js3247 ms145 ms–event handler, script tag
js3rd party2197.1 ms94.4 ms–timer or animation callback, script tag
fbevents.js3rd party1133.5 ms79.7 ms–script tag
1ki4hltmjvw2d.js1102 ms52.6 ms–script tag
js3rd party184.4 ms35.3 ms–script tag
gtm.js3rd party279.6 ms26.6 ms–timer or animation callback, script tag
v31edd6df95cf4e85bb4c19e7a9bdbcba17883629874953rd party18.2 ms2.4 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 · 226.4 msat 2.427 s · after load
blocking 166.8 ms
  • Scripts & other work224.3 ms
  • Animation callbacks2.1 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame · forced style & layout 0.6 ms
Ran for
214.5 ms
Forced style and layout
0.6 ms
How it started
script tag
Long animation frame #2 · 148.8 msat 1.815 s · after load
blocking 86.9 ms
  • Scripts & other work145.6 ms
  • Animation callbacks0.1 ms
  • Style & layout3.1 ms
  • Render0 ms
2 scripts ran during this frame
Ran for
7.2 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)
fbevents.js3rd party
Ran for
133.5 ms
How it started
script tag
Long animation frame #3 · 138.5 msat 1.236 s · after load
blocking 85.8 ms
  • Scripts & other work130.4 ms
  • Animation callbacks0.1 ms
  • Style & layout8 ms
  • Render0 ms
1 script ran during this frame
Ran for
127.5 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 #4 · 302.1 msat 599.6 ms · before LCP
blocking 70.5 ms
  • Scripts & other work239.6 ms
  • Animation callbacks0.4 ms
  • Style & layout62.1 ms
  • Render0 ms
1 script ran during this frame
Ran for
8.2 ms
How it started
module script
Long animation frame #5 · 127.6 msat 912.8 ms · before LCP
blocking 63.8 ms
  • Scripts & other work126.1 ms
  • Animation callbacks1.5 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame
Ran for
112.3 ms
How it started
script tag
Long animation frame #6 · 106.4 msat 1.630 s · after load
blocking 53.9 ms
  • Scripts & other work104.6 ms
  • Animation callbacks0 ms
  • Style & layout1.8 ms
  • Render0 ms
1 script ran during this frame
Ran for
102 ms
How it started
script tag
Long animation frame #7 · 103.2 msat 2.263 s · after load
blocking 52.1 ms
  • Scripts & other work101.1 ms
  • Animation callbacks1.9 ms
  • Style & layout0.2 ms
  • Render0 ms
1 script ran during this frame
js3rd party
Ran for
100 ms
Started by
TimerHandler:setTimeout
How it started
timer or animation callback
Long animation frame #8 · 110.9 msat 2.151 s · after load
blocking 48.4 ms
  • Scripts & other work109.6 ms
  • Animation callbacks1.3 ms
  • Style & layout0 ms
  • Render0 ms
2 scripts ran during this frame
gtm.js3rd party
Ran for
6.1 ms
Started by
TimerHandler:setTimeout
How it started
timer or animation callback
js3rd party
Ran for
97.1 ms
How it started
script tag
Long animation frame #9 · 86.5 msat 2.664 s · after load
blocking 35.7 ms
  • Scripts & other work85.3 ms
  • Animation callbacks0.1 ms
  • Style & layout1.1 ms
  • Render0 ms
1 script ran during this frame
js3rd party
Ran for
84.4 ms
How it started
script tag
Long animation frame #10 · 77.2 msat 2.031 s · after load
blocking 24.8 ms
  • Scripts & other work76.1 ms
  • Animation callbacks1.1 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame
gtm.js3rd party
Ran for
73.5 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 requests21
Tools6
Categories6
Third-party cookies1

Categories

6 categories

Requests by category21

  • survelliance10 req · 5 tools47.6%
  • tag-manager4 req · 1 tool19.0%
  • social3 req · 1 tool14.3%
  • utility2 req · 2 tools9.5%
  • analytics1 req · 1 tool4.8%
  • ad1 req · 1 tool4.8%

Third party requests and tools

6 categories
utilityCloudflareOther Google APIs/SDKs2 requests · 2 tools
tag-managerGoogle Tag Manager4 requests · 1 tool
survellianceGoogle Tag ManagerFacebookGoogle Analytics+ 2 more10 requests · 5 tools
socialFacebook3 requests · 1 tool
analyticsGoogle Analytics1 requests · 1 tool
adGoogle/Doubleclick Ads1 requests · 1 tool

Unmatched third party domains

4 domains

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

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

First party vs third party

79 first · 17 third party

Transfer size2.1 MB

  • First party1.3 MB63.0%
  • Third party784.6 KB37.0%

Content size5.9 MB

  • First party3.4 MB58.3%
  • Third party2.4 MB41.7%

Requests96

  • First party7982.3%
  • Third party1717.7%

First party requests and sizes per content type

79 requests

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

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b35.6 KB239.2 KB1
css0 b90.8 KB676.2 KB2
javascript0 b647.7 KB2.0 MB38
image0 b229.6 KB206.8 KB18
font0 b310.0 KB304.1 KB11
favicon0 b9.6 KB8.3 KB1
other0 b599 B151 B1
json0 b11.4 KB2.8 KB6
plain0 b575 B0 b1
TotalN/A1.3 MB3.4 MB79

Third party requests and sizes per content type

17 requests
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b59 B0 b1
css0 b0 b0 b0
javascript0 b783.1 KB2.4 MB8
image0 b408 B42 B1
font0 b0 b0 b0
favicon0 b0 b0 b0
plain0 b839 B2 B5
json0 b286 B15 B2
TotalN/A784.6 KB2.4 MB17