Page summary

https://xelta.ai/models/image_generation/gpt-image-2-workflow

Tested 2026-10-11 18:17:38 using Chrome 150.0.7871.46 (runtime settings)

SummaryWaterfallMetricsRenderingCoachPageXrayCPUThird party

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

73 / 100
Coach overall
73 / 100
Performance
93 / 100
Best practice
65 / 100
Privacy

How it loaded →

0 → 5.378 s · median run
Frame at 0 ms
start
Frame at 1200 ms
1.200 s
Frame at 2200 ms
Largest paint2.200 s
Frame at 3300 ms
3.300 s
Frame at 4400 ms
4.400 s
Frame at 5400 ms
Complete5.400 s
302 ms
First Visual Change
1.635 s
Speed Index
5.075 s
Visual Complete 85%
5.378 s
Last Visual Change
TTFB142 msLCP1.212 sTBT1.032 sCLS0.00

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 12 CPU long tasks with the total of 1.656 s. The total blocking time is 1.032 s and 1 long task before first contentful paint with total time of 74 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 extra requests by setting cache headers

0 / 100

The page has 12 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 21.5 kB the next access.

Google Web Vitals

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Time To First Byte (TTFB)142 ms142 ms142 ms142 ms
Largest Contentful Paint (LCP)1.212 s1.212 s1.212 s1.212 s
Cumulative Layout Shift (CLS)0.00010.00010.00010.0001

Visual Metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First visual change302 ms302 ms302 ms302 ms
Last visual change5.378 s5.378 s5.378 s5.378 s
Speed index1.635 s1.635 s1.635 s1.635 s
Visual readiness5.076 s5.076 s5.076 s5.076 s
Visual complete 855.075 s5.075 s5.075 s5.075 s
Visual complete 955.210 s5.210 s5.210 s5.210 s
Visual complete 995.378 s5.378 s5.378 s5.378 s

CPU

min · median · mean · max of 1 run
MetricMinMedianMeanMax
Total Blocking Time1.032 s1.032 s1.032 s1.032 s
Max Potential FID462 ms462 ms462 ms462 ms
CPU long tasks 12121212
CPU last long task happens at8.366 s8.366 s8.366 s8.366 s

More metrics

min · median · mean · max of 1 run
MetricMinMedianMeanMax
First paint320 ms320 ms320 ms320 ms
Load event end502 ms502 ms502 ms502 ms

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

52 frames

Use --filmstrip.showAll to show all filmstrips.

Frame at 0 ms
0 ms
0 %
Frame at 300 ms
300 ms
0 %
Frame at 400 ms
400 ms
36 %
Frame at 500 ms
500 ms
36 %
Frame at 600 ms
600 ms
36 %
Frame at 700 ms
700 ms
36 %
Frame at 800 ms
800 ms
40 %
Frame at 900 ms
900 ms
52 %
Frame at 1.000 s
1.000 s
54 %
Frame at 1.100 s
1.100 s
72 %
Frame at 1.200 s
1.200 s
74 %
Frame at 1.300 s
1.300 s
77 %
Frame at 1.400 s
1.400 s
78 %
Frame at 1.500 s
1.500 s
78 %
Frame at 1.600 s
1.600 s
78 %
Frame at 1.700 s
1.700 s
78 %
Frame at 1.800 s
1.800 s
78 %
Frame at 1.900 s
1.900 s
78 %
Frame at 2.000 s
2.000 s
78 %
Frame at 2.100 s
2.100 s
78 %
Frame at 2.200 s
2.200 s
78 %
Frame at 2.300 s
2.300 s
78 %
Frame at 2.400 s
2.400 s
78 %
Frame at 2.500 s
2.500 s
78 %
Frame at 2.600 s
2.600 s
78 %
Frame at 2.700 s
2.700 s
78 %
Frame at 2.800 s
2.800 s
78 %
Frame at 2.900 s
2.900 s
78 %
Frame at 3.000 s
3.000 s
78 %
Frame at 3.100 s
3.100 s
78 %
Frame at 3.200 s
3.200 s
78 %
Frame at 3.300 s
3.300 s
78 %
Frame at 3.400 s
3.400 s
78 %
Frame at 3.500 s
3.500 s
78 %
Frame at 3.600 s
3.600 s
78 %
Frame at 3.700 s
3.700 s
78 %
Frame at 3.800 s
3.800 s
78 %
Frame at 4.000 s
4.000 s
79 %
Frame at 4.100 s
4.100 s
79 %
Frame at 4.200 s
4.200 s
79 %
Frame at 4.300 s
4.300 s
79 %
Frame at 4.400 s
4.400 s
79 %
Frame at 4.500 s
4.500 s
79 %
Frame at 4.600 s
4.600 s
79 %
Frame at 4.700 s
4.700 s
79 %
Frame at 4.800 s
4.800 s
79 %
Frame at 4.900 s
4.900 s
79 %
Frame at 5.000 s
5.000 s
80 %
Frame at 5.100 s
5.100 s
88 %
Frame at 5.200 s
5.200 s
94 %
Frame at 5.300 s
5.300 s
97 %
Frame at 5.400 s
5.400 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 320 ms on a 142 ms first byte. The largest paint followed at 1.212 s.

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

Render blocking requests

35 requests · 563.2 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 142 ms
77 ms
726 B76 ms
1fzdumdazi_zk.jspotentially blocking
javascript · xelta.ai
203 ms
73.3 KB203 ms
1rttzs2jjmcrm.jspotentially blocking
javascript · xelta.ai
197 ms
44.0 KB197 ms
051lvap5oy8s5.jspotentially blocking
javascript · xelta.ai
190 ms
44.3 KB190 ms
3t8-9u-jny05g.jspotentially blocking
javascript · xelta.ai
190 ms
38.8 KB190 ms
0aqg1w_mz36ij.jspotentially blocking
javascript · xelta.ai
177 ms
18.6 KB177 ms
0v2z_qkm7kk0o.jspotentially blocking
javascript · xelta.ai
173 ms
22.4 KB173 ms
0mj8t75ay-mk_.jspotentially blocking
javascript · xelta.ai
161 ms
15.8 KB161 ms
0cp8p79hfnq5n.jspotentially blocking
javascript · xelta.ai
160 ms
10.7 KB160 ms
27 more requests
all done by 390 ms
295.2 KB
web font · xelta.ai · finished after first paint
29 ms
65.5 KB29 ms
web font · xelta.ai · finished after first paint
26 ms
8.9 KB26 ms
web font · xelta.ai · finished after first paint
loaded after LCP, at 1.260 s
37.7 KB24 ms
0606 ms909 msFCP 320 msLCP 1.212 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

73
2 errors10 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 1.656 s. The total blocking time is 1.032 s and 1 long task before first contentful paint with total time of 74 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
  • self
  • self
  • self
  • self
warn(0)Avoid extra requests by setting cache headerscacheHeaders

The page has 12 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 21.5 kB the next access.

The easiest way to make your page fast is to avoid doing requests to the server. Setting a cache header on your server response will tell the browser that it doesn't need to download the asset again during the configured cache time! Always try to set a cache time if the content doesn't change for every request.

Offenders
warn(0)Avoid redirecting the main documentdocumentRedirect

The main document gets redirected 1 time(s). Remove those redirect and make the page faster!

You should never ever redirect the main document, because it will make the page load slower for the user. Well, you should redirect the user if the user tries to use HTTP and there's an HTTPS version of the page. The coach checks for that. :)

Offenders
warn(0)Total JavaScript size shouldn't be too bigjavascriptSize

The total JavaScript transfer size is 1.7 MB and the uncompressed size is 5.5 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://static.cloudflareinsights.com/beacon.min.js/v4bc70e2c01a94c73b74392e423484066179121581592010.2 KB30.9 KB
https://xelta.ai/_next/static/chunks/0_cis5bf89bk3.js3.7 KB9.3 KB
https://xelta.ai/_next/static/chunks/3er0xpd5wsvv-.js11.3 KB38.9 KB
https://xelta.ai/_next/static/chunks/1fzdumdazi_zk.js73.3 KB232.0 KB
https://xelta.ai/_next/static/chunks/1qeqbdqs6aw5_.js48.9 KB171.7 KB
https://xelta.ai/_next/static/chunks/turbopack-0q9j1764nihrw.js6.6 KB18.4 KB
https://xelta.ai/_next/static/chunks/1r456rq_ng-ln.js6.8 KB15.9 KB
https://xelta.ai/_next/static/chunks/3syn4ku7n9yd8.js15.2 KB42.3 KB
https://xelta.ai/_next/static/chunks/1rf7hx4t4orng.js10.3 KB26.5 KB
https://xelta.ai/_next/static/chunks/25ko92ife3p72.js7.3 KB24.2 KB
https://xelta.ai/_next/static/chunks/0cp8p79hfnq5n.js10.7 KB29.5 KB
https://xelta.ai/_next/static/chunks/3harezu8knhoz.js8.0 KB21.0 KB
https://xelta.ai/_next/static/chunks/01_sax6s6jj2z.js10.7 KB28.2 KB
https://xelta.ai/_next/static/chunks/11lsc2q550m85.js10.8 KB27.3 KB
https://xelta.ai/_next/static/chunks/256jg1nxvr_w5.js9.2 KB24.5 KB
https://xelta.ai/_next/static/chunks/2davzdixtsrdf.js20.1 KB63.0 KB
https://xelta.ai/_next/static/chunks/0v-y_275lo0v3.js10.8 KB29.1 KB
https://xelta.ai/_next/static/chunks/1rttzs2jjmcrm.js44.0 KB140.6 KB
https://xelta.ai/_next/static/chunks/1n8btkakn7n-n.js6.4 KB14.3 KB
https://xelta.ai/_next/static/chunks/0begs3v_yx9ba.js9.6 KB31.4 KB
https://xelta.ai/_next/static/chunks/3wuo8wdooey29.js8.4 KB34.0 KB
https://xelta.ai/_next/static/chunks/2_mphrdu04vzv.js13.8 KB39.3 KB
https://xelta.ai/_next/static/chunks/00up96pc24a4e.js10.4 KB25.8 KB
https://xelta.ai/_next/static/chunks/0mj8t75ay-mk_.js15.8 KB52.3 KB
https://xelta.ai/_next/static/chunks/0aqg1w_mz36ij.js18.6 KB52.9 KB
https://xelta.ai/_next/static/chunks/0c_raod1zc5rk.js2.1 KB1.9 KB
https://xelta.ai/_next/static/chunks/015uxtofuc5qt.js2.3 KB2.9 KB
https://xelta.ai/_next/static/chunks/40l6vrwl4aazw.js1.4 KB868 B
https://xelta.ai/_next/static/chunks/3tir7zlddz7r8.js11.9 KB33.4 KB
https://xelta.ai/_next/static/chunks/2_di8s9kcp3_u.js8.1 KB30.8 KB
https://xelta.ai/_next/static/chunks/17er3rvyh_h68.js12.5 KB39.5 KB
https://xelta.ai/_next/static/chunks/0bledu2iln4zy.js9.8 KB27.9 KB
https://xelta.ai/_next/static/chunks/051lvap5oy8s5.js44.3 KB171.1 KB
https://xelta.ai/_next/static/chunks/04xk8255b4onl.js11.5 KB38.1 KB
https://xelta.ai/_next/static/chunks/3t8-9u-jny05g.js38.8 KB175.4 KB
https://xelta.ai/_next/static/chunks/0v2z_qkm7kk0o.js22.4 KB75.9 KB
https://xelta.ai/_next/static/chunks/36h4r9duhyjke.js11.1 KB37.2 KB
https://xelta.ai/_next/static/chunks/32w4p10g8-c72.js2.9 KB4.1 KB
https://xelta.ai/_next/static/chunks/0ydxpfwuv6kde.js11.9 KB41.3 KB
https://xelta.ai/_next/static/chunks/11xynv20myc_u.js6.5 KB18.2 KB
https://xelta.ai/_next/static/chunks/2sj06e750b-9m.js2.8 KB4.1 KB
https://xelta.ai/_next/static/chunks/1ixu0ttmt6hns.js3.9 KB7.9 KB
https://xelta.ai/_next/static/chunks/0t7tltt9fbr54.js6.9 KB16.4 KB
https://xelta.ai/_next/static/chunks/1nlwvy4lxglg9.js1.2 KB151 B
https://xelta.ai/_next/static/chunks/1jvsmh0uv0rag.js6.4 KB18.5 KB
https://xelta.ai/_next/static/chunks/3aea5tta4zd_f.js1.2 KB151 B
https://xelta.ai/_next/static/chunks/2r78ribfbldbd.js10.5 KB34.3 KB
https://xelta.ai/_next/static/chunks/1syhowumx8u35.js1.4 KB607 B
https://xelta.ai/_next/static/chunks/3qa20v7eht3ww.js1.7 KB1.2 KB
https://xelta.ai/_next/static/chunks/3c9-jx0jhg1zb.js2.1 KB1.8 KB
https://xelta.ai/analytics/gtm.js1.5 KB205 B
https://xelta.ai/analytics/ga4.js1.4 KB144 B
https://xelta.ai/analytics/meta-pixel.js1.6 KB426 B
https://xelta.ai/analytics/defer-tags.js2.0 KB1.3 KB
https://xelta.ai/_next/static/chunks/1ki4hltmjvw2d.js77.6 KB253.9 KB
https://xelta.ai/_next/static/chunks/3f1tw02kuplod.js3.3 KB6.2 KB
https://xelta.ai/_next/static/chunks/2k5vpzc_p9jpq.js35.3 KB106.7 KB
https://xelta.ai/_next/static/chunks/188chw2t9312e.js38.1 KB95.8 KB
https://xelta.ai/_next/static/chunks/1t6jgzhg1z-2-.js40.5 KB103.0 KB
https://xelta.ai/_next/static/chunks/0uss2p1842bvv.js6.9 KB16.3 KB
https://xelta.ai/_next/static/chunks/2k0t-tp17clip.js1.6 KB854 B
https://xelta.ai/_next/static/chunks/39llvb0iqw2mj.js5.8 KB13.4 KB
https://xelta.ai/_next/static/chunks/01ysbefej55j6.js6.4 KB14.9 KB
https://xelta.ai/_next/static/chunks/0vv_1jbbburl3.js1.4 KB671 B
https://xelta.ai/_next/static/chunks/0uqpbcbj6u3h-.js3.1 KB5.2 KB
https://xelta.ai/_next/static/chunks/0oi6c745pk52t.js2.7 KB3.4 KB
https://xelta.ai/_next/static/chunks/28r3ari2she5h.js1.2 KB217 B
https://xelta.ai/_next/static/chunks/359qhom6t_sq4.js10.8 KB32.7 KB
https://xelta.ai/_next/static/chunks/41y6oe5wi42q7.js47.4 KB207.3 KB
https://connect.facebook.net/en_US/fbevents.js113.1 KB418.9 KB
https://www.googletagmanager.com/gtm.js?id=GTM-5XNS5NQ2116.7 KB330.1 KB
https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP191.6 KB583.6 KB
https://connect.facebook.net/signals/config/1123404090023729.../1123404090023729158.8 KB563.8 KB
https://www.googletagmanager.com/gtag/js?id=G-CPG3NLBKHP&cx=c&gtm=4e6a72191.7 KB583.6 KB
warn(10)Don't scale images in the browseravoidScalingImages

The page has 9 images that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.

It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.

Offenders
infoAvoid too many fontsfewFonts

The page has 6 font requests. Do you really need them? What value does the fonts give the user?

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

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

The total CSS transfer size is 105 kB and uncompressed size is 746.2 kB. That is big and the CSS could most probably be smaller.

Delivering a massive amount of CSS to the browser is not the best thing you can do, because it means more work for the browser when parsing the CSS against the HTML and that makes the rendering slower. Try to send only the CSS that is used on that page. And make sure to remove CSS rules when they aren't used anymore.

Offenders
URLTransferContent
https://xelta.ai/_next/static/chunks/07zjd4lkzne2c.css99.0 KB720.0 KB
https://xelta.ai/_next/static/chunks/2y7vqocokaqma.css1.8 KB6.4 KB
https://xelta.ai/_next/static/chunks/2951_j97le6r5.css1.6 KB2.3 KB
warn(60)Don't use private headers on static contentprivateAssets

The page has 4 requests with private headers. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone.

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

Offenders
infoLong cache headers is goodcacheHeadersLong

The page has 27 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(90)Always compress text contentcompressAssets

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

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

Offenders
URLTransferContent
https://xelta.ai/models/image-generation/gpt-image-2-workflow29.3 KB227.1 KB
infoMake each CSS response smalloptimalCssSize

https://xelta.ai/_next/static/chunks/07zjd4lkzne2c.css size is 101.4 kB (101386) 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/07zjd4lkzne2c.css99.0 KB720.0 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

93
4 info
infoAvoid unnecessary headersunnecessaryHeaders

There are 5 responses that sets both a max-age and expires header. There are 128 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 252 characters, the recommended max is 160

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

infoAvoid use too many response headersmanyHeaders

https://xelta.ai/api...nt/public/pricing has 35 headers.https://xelta.ai/api...ge_generation/all has 31 headers.https://xelta.ai/api...i/credits/options has 31 headers.https://xelta.ai/api...api/page-metadata has 31 headers.https://xelta.ai/api/geo has 32 headers.https://xelta.ai/api/cms/maintenance has 33 headers.https://xelta.ai/api...cms/notifications has 33 headers.https://xelta.ai/api...nts/active-banner has 33 headers.https://xelta.ai/api...cms/announcements has 33 headers.

Avoid send too many response headers.

Offenders
infoDo not send too long headerslongHeaders

https://xelta.ai/_ne...zbiuwnnoiok.woff2 has a header content-security-policy-report-only that is 804 characters long. https://xelta.ai/_ne...zbiuwnnoiok.woff2 has a header report-to that is 608 characters long. https://xelta.ai/api...nt/public/pricing has a header content-security-policy-report-only that is 805 characters long. https://xelta.ai/api...nt/public/pricing has a header report-to that is 603 characters long. https://connect.face...en_US/fbevents.js has a header content-security-policy that is 1344 characters long. https://connect.face...en_US/fbevents.js has a header permissions-policy that is 874 characters long. https://connect.face.../1123404090023729 has a header content-security-policy that is 1344 characters long. https://connect.face.../1123404090023729 has a header permissions-policy that is 874 characters long.

Do not send response headers that are too long.

Offenders

Privacy advice

65
7 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
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 6% requests that are 3rd party (8 requests with a size of 802.1 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 utility request and uses 1 utility tool. The page do 3 social requests and uses 1 social tool. The page do 6 survelliance requests and uses 2 survelliance tools. The page do 6 surveillance requests and uses 2 surveillance tools. The page do 3 tag-manager requests and uses 1 tag-manager 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.

TitleGPT Image 2 - AI ModelThe document title, shown in the browser tab and used by search results.
Layout viewport1355 × 3537 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 elements1,934Very large, slows layout and styleTotal HTML elements. Fewer means less for the browser to style, lay out and paint.
Avg DOM depth12How deeply elements are nested on average.
Max DOM depth20The deepest nesting on the page. Deep branches cost more style recalculation.
Iframes0No embedded documents on this page.
Script tags88Number 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 storage1.1 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

2 hints
dns-prefetch
  • https://media.xelta.ai/
preconnect
  • https://media.xelta.ai/

Technologies used to build the page

Data collected using Coach-core version 9.2.1. With updated code from Webappanalyzer 2026-05-04. Use --browsertime.firefox.includeResponseBodies html or --browsertime.chrome.includeResponseBodies html to help Wappalyzer find more information about technologies used.

Detected technologies

6 technologies

Third-party tools

8 tools

Data collected using Third Party Web version 0.29.2.

Utility
  • Cloudflare
Other
  • Amazon Web Services
Social
  • Facebook
Survelliance
  • Facebook
  • Google Tag Manager
Surveillance
  • Facebook
  • Google Tag Manager
Tag-manager
  • Google Tag Manager

Data from run 1

Visual Metrics

Visual milestones

all times from navigation start
Speed Index1.64 show quickly the page looked done
First Visual Change0.30 sfirst paint reaches the screen
Last Visual Change5.38 sscreen stops changing · 5.08 s after first
0.30 sFirst Visual Change
Visual Complete 85%5.08 s
Visual Complete 95%5.21 s
Visual Complete 99% · Last Visual Change5.38 s
Visual Readiness5.08 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 0.9 s0.9s
Visual progress at 1.7 s1.7s
Visual progress at 2.4 s2.4s
Visual progress at 3.1 s3.1s
Visual progress at 3.8 s3.8s
Visual progress at 4.7 s4.7s
Visual progress at 5.4 s5.4s
FCP0.32s
LCP1.21s
VC855.08s
Long tasks
0.0s1.1s2.2s3.2s4.3s5.4s

Google Web Vitals

from run 1

Largest Contentful Paint

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

1.212 sLCP render time

Phase breakdown

  • TTFB142 ms
  • Resource load delay0 ms
  • Resource load duration0 ms
  • Element render delay1.071 s

Element

Element type
<div>
Size (w × h)
86450
Load time
0 ms

DOM path

body > div#app-root > div > div > div > div > div:eq(0) > div#playground-section > div > div:eq(0) > div:eq(1) > div:eq(0) > div > div:eq(1) > div:eq(0)
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)
  • #20.000<div class="hidden lg:flex items-center flex-shrink-0 ml-auto"></div>
    body > div#app-root > header > div > div:eq(2)
Layout shift

Elements that shifted by more than 0.01 are highlighted in the screenshot. If an element shifted outside the viewport, it won't appear here. Check the video or filmstrip to see the shift.

Browser Metrics

Navigation Timing
Extra timings

Server timings

Timing data the server chose to expose through Server-Timing response headers on the main document — typically backend time, cache status or experiment flags.

Server timings

3 entries
NameDurationDescription
cfCacheStatus0 msHIT
cfEdge36 ms–
cfOrigin0 ms–

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

There are no custom extra metrics from scripting.

PageXray

How the page is built.

HTTP versionHTTP/2.0
Total requests131
Total domains9
Transfer size2.3 MB
Content size6.6 MB
Missing compression1
Cookies61 third-party

Main document

status 200 · 1 redirect

https://xelta.ai/models/image-generation/gpt-image-2-workflow

HeaderValue
alt-svch3=":443"; ma=86400
cf-cache-statusBYPASS
cf-raya48fdce2dd56897e-DEL
dateSun, 11 Oct 2026 18:17:39 GMT
expect-ctmax-age=86400, enforce
location/models/image-generation/gpt-image-2-workflow
nel{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
referrer-policysame-origin strict-origin-when-cross-origin
refresh0;url=/models/image-generation/gpt-image-2-workflow
report-to{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=WKU9YfUgJft7ATEQ4J9uBOZoqM0miKVELtPOYovbJ06Qh6D1%2FlxsMEMxWZscAb0zhPwH8cQIxLUE3EKptvqZrHY3azmxBzKDM9SqaASzYzyO%2FCYTc0Nix%2Bpb"}]}
servercloudflare
server-timingcfCacheStatus;desc="BYPASS" cfEdge;dur=34,cfOrigin;dur=8
speculation-rules"/cdn-cgi/speculation"
strict-transport-securitymax-age=31536000; includeSubDomains; preload
varyaccept-encoding
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block

Response codes

200
12696.2%
202
10.8%
204
21.5%
308
10.8%
401
10.8%

Largest assets on the page (by transfer size)

Top 20 of 131

Requests and sizes per content type

9 types

Transfer size2.3 MB

  • javascript71.5%
  • image13.9%
  • font7.5%
  • css4.3%
  • html1.2%
  • json0.97%
  • favicon0.41%
  • plain0.05%
  • other0.03%

Content size6.6 MB

  • javascript78.7%
  • css10.7%
  • image4.4%
  • html3.3%
  • font2.5%
  • json0.24%
  • favicon0.12%
  • other0.00%
  • plain0.00%

Requests129

  • javascript57.4%
  • image20.2%
  • json10.1%
  • font4.7%
  • plain3.1%
  • css2.3%
  • html0.78%
  • favicon0.78%
  • other0.78%
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b29.3 KB227.1 KB1
css0 b102.5 KB728.7 KB3
javascript0 b1.7 MB5.2 MB74
image0 b329.8 KB300.0 KB26
font0 b178.7 KB171.5 KB6
favicon0 b9.6 KB8.3 KB1
other0 b725 B151 B1
json0 b23.1 KB16.0 KB13
plain0 b1.3 KB2 B4
Total0 b2.3 MB6.6 MB129

Data per domain

9 domains
DomainTotal download timeTransfer SizeContent SizeRequests
xelta.ai48.853 s1.6 MB4.2 MB119
static.cloudflareinsights.com74 ms10.2 KB30.9 KB1
vygxif9kfe.execute-api.ap-south-1.amazonaws.com126 ms852 B63 B1
us.i.posthog.com1.022 s286 B15 B1
telemetry.matchbestsoftware.online154 ms286 B2 B2
connect.facebook.net167 ms271.9 KB982.6 KB2
www.googletagmanager.com1.086 s500.0 KB1.5 MB3
mpc-prod-27-s6uit34pua-uk.a.run.app406 msN/A0 b1
www.facebook.com117 ms423 B0 b1

Expires & last-modified statistics

typeminmedianmax
Expires0 seconds1 year1 year
Last modified18 minutes23 hours6 days

Requests loaded after onLoad event

77 requests

Includes requests done after load event end.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript1.1 MB37
image225.3 KB17
font130.4 KB5
favicon9.6 KB1
plain1.3 KB4
json21.2 KB12
Total1.5 MB77

Requests loaded after onContentLoad

77 requests

Includes requests done after DOM content loaded.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript1.1 MB37
image225.3 KB17
font130.4 KB5
favicon9.6 KB1
plain1.3 KB4
json21.2 KB12
Total1.5 MB77

CPU

https://xelta.ai/_next/static/chunks/1fzdumdazi_zk.js is responsible for 43% of blocking time
447 ms of 1030 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.

TBT1.032 s
Max potential input delay462 ms
Total long tasks12
Total time1.656 s
Last task at8.366 s
Before first paint74 ms1 task
Before FCP74 ms1 task
Before LCP714 ms5 tasks
After load1.525 s10 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 frames13showing the 10 with the most blocking time
Blocking time1.107 sacross all long frames — what hurts INP and TBT
Forced style & layout47 msscripts reading layout mid-frame
Blocking before LCP495 msdelaying the largest paint — fix these first
Blocking after load1.062 safter the load event — didn't delay page load

What to fix first

ScriptFramesTime runningBlocking (share by run time)Forced style & layoutTriggered by
1fzdumdazi_zk.js3546.4 ms447 ms46.7 msevent handler
11234040900237293rd party1274.7 ms224.4 ms0.3 msscript tag
fbevents.js3rd party1217.7 ms162.5 ms–script tag
js3rd party2228.4 ms124.6 ms–script tag, timer or animation callback
gtm.js3rd party196.2 ms48.2 ms–script tag
js3rd party172.9 ms23.1 ms–script 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 · 482.8 msat 639.7 ms · before LCP
blocking 423.4 ms
  • Scripts & other work472.2 ms
  • Animation callbacks0.1 ms
  • Style & layout10.5 ms
  • Render0 ms
1 script ran during this frame · forced style & layout 30.3 ms
Ran for
462.8 ms
Forced style and layout
30.3 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 #2 · 276.8 msat 7.806 s · after load
blocking 225.6 ms
  • Scripts & other work276.2 ms
  • Animation callbacks0.1 ms
  • Style & layout0.5 ms
  • Render0 ms
1 script ran during this frame · forced style & layout 0.3 ms
Ran for
274.7 ms
Forced style and layout
0.3 ms
How it started
script tag
Long animation frame #3 · 226.2 msat 7.454 s · after load
blocking 168.5 ms
  • Scripts & other work225.7 ms
  • Animation callbacks0.2 ms
  • Style & layout0.3 ms
  • Render0 ms
1 script ran during this frame
fbevents.js3rd party
Ran for
217.7 ms
How it started
script tag
Long animation frame #4 · 130.5 msat 8.094 s · after load
blocking 80.2 ms
  • Scripts & other work130.1 ms
  • Animation callbacks0.1 ms
  • Style & layout0.3 ms
  • Render0 ms
1 script ran during this frame
js3rd party
Ran for
129.7 ms
How it started
script tag
Long animation frame #5 · 120.5 msat 8.226 s · after load
blocking 52.8 ms
  • Scripts & other work116.7 ms
  • Animation callbacks3.2 ms
  • Style & layout0.6 ms
  • Render0 ms
1 script ran during this frame
js3rd party
Ran for
98.7 ms
Started by
TimerHandler:setTimeout
How it started
timer or animation callback
Long animation frame #6 · 101.9 msat 7.684 s · after load
blocking 50.1 ms
  • Scripts & other work100 ms
  • Animation callbacks1.4 ms
  • Style & layout0.5 ms
  • Render0 ms
1 script ran during this frame
gtm.js3rd party
Ran for
96.2 ms
How it started
script tag
Long animation frame #7 · 139.5 msat 166.8 ms · before LCP
blocking 34 ms
  • Scripts & other work68.6 ms
  • Animation callbacks0.5 ms
  • Style & layout70.4 ms
  • Render0 ms

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

Long animation frame #8 · 73.9 msat 8.365 s · after load
blocking 23.3 ms
  • Scripts & other work73.6 ms
  • Animation callbacks0 ms
  • Style & layout0.3 ms
  • Render0 ms
1 script ran during this frame
js3rd party
Ran for
72.9 ms
How it started
script tag
Long animation frame #9 · 82.4 msat 539.9 ms · before LCP
blocking 19.1 ms
  • Scripts & other work28.7 ms
  • Animation callbacks0 ms
  • Style & layout53.7 ms
  • Render0 ms
2 scripts ran during this frame
Ran for
5.3 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)
Ran for
15.3 ms
Started by
MessagePort.onmessage
How it started
event handler
Source function
z
Position in source
character 3191 into the file (locate it via DevTools → Performance → the Long Animation Frames track)
Long animation frame #10 · 69 msat 1.203 s · before LCP
blocking 18.5 ms
  • Scripts & other work63.7 ms
  • Animation callbacks5.3 ms
  • Style & layout0 ms
  • Render0 ms
1 script ran during this frame · forced style & layout 16.4 ms
Ran for
63 ms
Forced style and layout
16.4 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)

Blocking time per script (browser-reported)

How much each script blocked the main thread, derived from the Long Animation Frame API. Each frame's blocking time is split between its scripts by their share of the frame's work, capped at each script's own run time — blocking from work no script owns (HTML parsing, browser internals) is not attributed (older data credits the script that started the frame). The closest answer to "which script should I fix to improve TBT" the platform exposes.

Top scripts blocking the main thread

6 of 6 scripts

Forced layout per script

Each long animation frame reports how much time each script spent forcing synchronous style and layout, i.e. JavaScript reading layout-triggering properties mid-execution. Same actionable answer as forced reflows above but measured directly by the browser instead of inferred from the trace.

Scripts forcing layout

1 of 2 scripts

Third party

Third party requests categorised by Third party web version 0.29.2.

Third-party requests14
Tools4
Categories5
Third-party cookies1

Categories

5 categories

Requests by category14

  • survelliance6 req · 2 tools42.9%
  • social3 req · 1 tool21.4%
  • tag-manager3 req · 1 tool21.4%
  • utility1 req · 1 tool7.1%
  • other1 req · 1 tool7.1%

Unmatched third party domains

3 domains

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

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

First party vs third party

119 first · 12 third party

Transfer size2.3 MB

  • First party1.6 MB67.0%
  • Third party783.9 KB33.0%

Content size6.6 MB

  • First party4.2 MB63.1%
  • Third party2.5 MB36.9%

Requests131

  • First party11990.8%
  • Third party129.2%

First party requests and sizes per content type

119 requests

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

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b29.3 KB227.1 KB1
css0 b102.5 KB728.7 KB3
javascript0 b914.8 KB2.8 MB68
image0 b329.8 KB300.0 KB26
font0 b178.7 KB171.5 KB6
favicon0 b9.6 KB8.3 KB1
other0 b725 B151 B1
json0 b22.8 KB16.0 KB11
plain0 b577 B0 b1
TotalN/A1.6 MB4.2 MB119

Third party requests and sizes per content type

12 requests
ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b0 b0 b0
javascript0 b782.1 KB2.5 MB6
image0 b0 b0 b0
font0 b0 b0 b0
favicon0 b0 b0 b0
json0 b286 B15 B2
plain0 b709 B2 B3
TotalN/A783.9 KB2.5 MB12