How does PageSourceSearch know what velt.dev is built with?

From the site's own source code. The crawler stores the exact bytes of its pages and first-party scripts; the libraries are recognised by fingerprinting that code against known releases, the identifiers are read out of the tag snippets, and the third-party hosts are the script, iframe and stylesheet sources in the HTML and the absolute URLs inside the scripts. Nothing is inferred from headers or guessed.

How far back does the history of velt.dev go?

To the first crawl the timeline lists. Every crawl records what the site looked like; when a file's content changes, its earlier version stays viewable because the stored chunks are never deleted, only mapped. A crawl that finds a file unchanged adds no copy.

Can I see an older version of a script from velt.dev?

Yes. In the stored files list, every date under a file opens the version that was live at that crawl, with the same viewer as the current one. The raw bytes can be downloaded from there.

Which other websites use the same tracking IDs as velt.dev?

Each identifier links to its reverse lookup, the list of every site in the index whose source carries the same id: the sites one analytics property or tag manager container is shared across.

Site profile

velt.dev

Built with gtm, gtag, @clerk/ui 1.34.0, dashjs 5.2.1, @inkeep/cxkit-js 0.5.119, onetrust, recaptcha, @reachfive/identity-core 1.42.0, @reachfive/identity-ui 2.1.0, jspdf 4.2.1, google-apis, cloudflare-turnstile and more. 5 pages and 120 stored files, last crawled 2026-10-03.

rank 1,865,855 26 libraries 2 identifiers 68 third-party hosts 1 crawl open the site

Technologies and libraries

Recognised by fingerprinting the stored files and bundles against known releases; a version is the release the bytes match.

Library	Version	Seen
gtm		2026-10-03
gtag		2026-10-03
@clerk/ui	1.34.0	2026-10-03
dashjs	5.2.1	2026-10-03
@inkeep/cxkit-js	0.5.119	2026-10-03
onetrust		2026-10-03
recaptcha		2026-10-03
@reachfive/identity-core	1.42.0	2026-10-03
@reachfive/identity-ui	2.1.0	2026-10-03
jspdf	4.2.1	2026-10-03
google-apis		2026-10-03
cloudflare-turnstile		2026-10-03
@usesuperflow/toolbar	1.0.201	2026-10-03
@foxy.io/elements	1.54.0	2026-10-03
spectorjs	0.9.33	2026-10-03
@moveo-ai/web-client	0.117.0	2026-10-03
@recogito/annotorious	2.7.14	2026-10-03
@snippyly/plugin	1.0.269	2026-10-03
@ant-design/x	2.9.0	2026-10-03
mori-chat-widget	2.0.49	2026-10-03
@inkeep/agents-ui-js-cloud	0.17.8	2026-10-03
@joyfill/components	4.0.0-rc26	2026-10-03
prometix	1.7.0	2026-10-03
alist-web	3.55.0	2026-10-03
@twinalyze/web-analytics	1.0.26	2026-10-03
@marimo-team/frontend	0.25.0	2026-09-25

Tracking, tag and verification IDs

Public identifiers read out of the source. Each links to every other site in the index that carries the same one.

What	Value	Found in
Intercom app id (Intercom)	fxx14qnk	view source
X (Twitter) pixel id (X)	ootae	view source

Third-party hosts

Hosts outside velt.dev that its pages load scripts, frames or stylesheets from, and that its own scripts name in absolute URLs (connect). Each links to every site loading from the same host.

Host	Loaded as	Found in
aistudio.google.com	connect	view source
api-eu.mixpanel.com	connect	view source
api-in.mixpanel.com	connect	view source
api-sr.amplitude.com	connect	view source
api-sr.eu.amplitude.com	connect	view source
api-sr.stag2.amplitude.com	connect	view source
api.eu.amplitude.com	connect	view source
api.github.com	connect	view source
api.mixpanel.com	connect	view source
api2.amplitude.com	connect	view source
apis.google.com	connect	view source
app.amplitude.com	connect	view source
app.devin.ai	connect	view source
app.eu.amplitude.com	connect	view source
app.mintlify.com	connect	view source
app.usesuperflow.com	connect	view source
apps.stag2.amplitude.com	connect	view source
base-ui.com	connect	view source
cdn.amplitude.com	connect	view source
cdn.cookielaw.org	connect	view source
cdn.getkoala.com	connect	view source
cdn.heapanalytics.com	connect	view source
cdn.segment.com	connect	view source
challenges.cloudflare.com	connect	view source
chat-assets.frontapp.com	connect	view source
chat.openai.com	connect	view source
claude.ai	connect	view source
cursor.com	connect	view source
customized-angular-figma-demo.vercel.app	connect	view source
customized-angular-windows-demo.vercel.app	connect	view source
d3gk2c5xim1je2.cloudfront.net	connect	view source
dashboard.mintlify.com	connect	view source
demo-examples.vercel.app	connect	view source
diagnostics.prod.eu-central-1.amplitude.com	connect	view source
diagnostics.prod.us-west-2.amplitude.com	connect	view source
discord.com	connect	view source
docs.google.com	connect	view source
drive.google.com	connect	view source
firebasestorage.googleapis.com	connect	view source
fonts.googleapis.com	stylesheet connect	view source
fonts.gstatic.com	connect	view source
github.com	connect	view source
grok.com	connect	view source
images.unsplash.com	connect	view source
ipinfo.io	connect	view source
join.slack.com	connect	view source
js.hcaptcha.com	connect	view source
leaves.mintlify.com	connect	view source
mintlify.b-cdn.net	connect	view source
mintlify.com	connect	view source
ph.mintlify.com	connect	view source
react.dev	connect	view source
serveprivatenpmpackage-4mfhcuyw2q-uc.a.run.app	connect	view source
sr-client-cfg.amplitude.com	connect	view source
sr-client-cfg.eu.amplitude.com	connect	view source
tag.clearbitscripts.com	connect	view source
travis-ci.org	connect	view source
us.app.unleash-hosted.com	connect	view source
us.posthog.com	connect	view source
vercel.live	connect	view source
www.clarity.ms	connect	view source
www.figma.com	connect	view source
www.google.com	connect	view source
www.googletagmanager.com	connect	view source
www.mintlify.com	connect	view source
www.perplexity.ai	connect	view source
www.usesuperflow.com	connect	view source
www.w3.org	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 120) }. Versions are the crawls at which the file was new or its content changed; each opens the file as it was then, rebuilt from the same stored chunks.

File	Kind	Size	Collected	Versions
https://apis.google.com/js/api.js	js library	not fetched	2026-10-03	current
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js	js library	not fetched	2026-10-03	current
https://challenges.cloudflare.com/turnstile/v0/api.js?render=explicit	js library	not fetched	2026-10-03	current
https://velt.dev/docs/_next/static/chunks/4e3bd07819e9eb32.js	js	212 B	2026-10-03	2026-10-03
https://www.google.com/recaptcha/api.js	js library	not fetched	2026-10-03	current
https://www.google.com/recaptcha/enterprise.js?render=	js library	not fetched	2026-10-03	current
https://www.googletagmanager.com/gtag/js?id=G-6D523BSLHR	js library	not fetched	2026-10-03	current
https://www.googletagmanager.com/gtm.js?id=	js library	not fetched	2026-10-03	current
https://velt.dev/docs/_next/static/chunks/15663fcd5bd8095f.js	js	287 B	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/W5BlOSxNiGfYshDVaJPMU/_ssgManifest.js	js	858 B	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/b47f01a57f450ae1.js	js	287 B	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/W5BlOSxNiGfYshDVaJPMU/_buildManifest.js	js	423 B	2026-10-03	2026-10-03
https://cdn.velt.dev/velt.js	js	8 B	2026-10-03	current
https://velt.dev/_next/static/chunks/0ut512g0n~4…pl_doPk6McPAonA38kBxm1VKX9m1GXC	js	106.9 KB	2026-10-03	current
https://velt.dev/_next/static/chunks/0xji7zkh61t…pl_doPk6McPAonA38kBxm1VKX9m1GXC	js	61.8 KB	2026-10-03	current
https://velt.dev/docs/_next/static/chunks/3fcb76…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	18.5 KB	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/a6dad9…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	110 KB	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/0d29cf…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	8 KB	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/1a0bf1…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	32.6 KB	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/e5dcdb…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	270.2 KB	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/c58283…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	47.5 KB	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/fde446…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	101.5 KB	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/e452a5…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	26.5 KB	2026-10-03	2026-10-03
https://velt.dev/docs/_next/static/chunks/41c823…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	23.4 KB	2026-10-03	2026-10-03
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https://velt.dev/docs/_next/static/chunks/d2feda…pl_G2V2ecyQiE2VPjSZgHNz4JvwMtzJ	js	18.5 KB	2026-10-03	2026-10-03
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https://velt.dev/pricing	html	340.7 KB	2026-10-03	current
https://velt.dev/	html	428.2 KB	2026-10-03	current
https://velt.dev/blog	html	723.8 KB	2026-10-03	current
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Timeline

One entry per crawl, newest first, with what changed since the crawl before: libraries, identifiers, third-party hosts and files. Historical versions stay viewable because the stored chunks are shared between versions, never copied.

2026-10-03 first crawl

5 pages, 75 files, 6.7 MB; 25 libraries, 2 identifiers, 68 third-party hosts
25 libraries added
- @ant-design/x 2.9.0
- mori-chat-widget 2.0.49
- @inkeep/agents-ui-js-cloud 0.17.8
- @joyfill/components 4.0.0-rc26
- jspdf 4.2.1
- @reachfive/identity-core 1.42.0
- @recogito/annotorious 2.7.14
- dashjs 5.2.1
- @reachfive/identity-ui 2.1.0
- spectorjs 0.9.33
- @usesuperflow/toolbar 1.0.201
- @snippyly/plugin 1.0.269
- and 13 more
2 identifiers added
- fxx14qnk Intercom app id
- ootae X (Twitter) pixel id
69 third-party hosts added
75 files added

Questions about velt.dev

How does PageSourceSearch know what velt.dev is built with?: From the site's own source code. The crawler stores the exact bytes of its pages and first-party scripts; the libraries are recognised by fingerprinting that code against known releases, the identifiers are read out of the tag snippets, and the third-party hosts are the script, iframe and stylesheet sources in the HTML and the absolute URLs inside the scripts. Nothing is inferred from headers or guessed.
How far back does the history of velt.dev go?: To the first crawl the timeline lists. Every crawl records what the site looked like; when a file's content changes, its earlier version stays viewable because the stored chunks are never deleted, only mapped. A crawl that finds a file unchanged adds no copy.
Can I see an older version of a script from velt.dev?: Yes. In the stored files list, every date under a file opens the version that was live at that crawl, with the same viewer as the current one. The raw bytes can be downloaded from there.
Which other websites use the same tracking IDs as velt.dev?: Each identifier links to its reverse lookup, the list of every site in the index whose source carries the same id: the sites one analytics property or tag manager container is shared across.

Look up another site, browse sites by tracking ID, third-party host or technology. Site owners: see the crawler page for how stored pages are removed.