How does PageSourceSearch know what upsound.ai 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 upsound.ai 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 upsound.ai?

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 upsound.ai?

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

upsound.ai

Built with @clerk/clerk-js 6.33.0, @clerk/ui 1.34.0, algoliasearch.zendesk-hc 3.0.0, lottie-web 5.13.0, dashjs 5.2.1, posthog-js 1.434.12, @marimo-team/frontend 0.25.0, @inkeep/cxkit-js 0.5.119, klaro 0.7.21, @reachfive/identity-core 1.42.0, @reachfive/identity-ui 2.1.0, jspdf 4.2.1 and more. 3 pages and 144 stored files, last crawled 2026-10-05.

rank 32,725,296 29 libraries 0 identifiers 41 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
@clerk/clerk-js	6.33.0	2026-10-05
@clerk/ui	1.34.0	2026-10-05
algoliasearch.zendesk-hc	3.0.0	2026-10-05
lottie-web	5.13.0	2026-10-05
dashjs	5.2.1	2026-10-05
posthog-js	1.434.12	2026-10-05
@marimo-team/frontend	0.25.0	2026-10-05
@inkeep/cxkit-js	0.5.119	2026-10-05
klaro	0.7.21	2026-10-05
@reachfive/identity-core	1.42.0	2026-10-05
@reachfive/identity-ui	2.1.0	2026-10-05
jspdf	4.2.1	2026-10-05
@sentry-internal/replay	10.57.0	2026-10-05
@desivocal/agents-cdn	1.0.21	2026-10-05
spectorjs	0.9.33	2026-10-05
@moveo-ai/web-client	0.117.0	2026-10-05
@nylas/web-elements	2.6.0	2026-10-05
ovenplayer	0.10.54	2026-10-05
graphql-playground-react	1.7.28	2026-10-05
@recogito/annotorious	2.7.14	2026-10-05
@johanaarstein/dotlottie-player	1.5.23	2026-10-05
@betterbugs/web-sdk	0.0.47	2026-10-05
@ant-design/x	2.9.0	2026-10-05
mori-chat-widget	2.0.49	2026-10-05
@stytch/vanilla-js	6.3.0	2026-10-05
@tsocial/tvweb-sdk	5.38.6	2026-10-05
@joyfill/components	4.0.0-rc26	2026-10-05
veris-storybook-beta	0.1.81-react-upgrade	2026-10-05
@pydantic/ai-chat-ui	2.3.0	2026-10-05

Tracking, tag and verification IDs

No analytics property, tag manager container, pixel or site-verification token was found in the stored source.

Third-party hosts

Hosts outside upsound.ai 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
app.posthog.com	connect	view source
avatars.yandex.net	connect	view source
bacqcvgaskxtcfnwauts.supabase.co	connect	view source
browser.sentry-cdn.com	connect	view source
cdn-new.zvuk.com	connect	view source
e.mail.ru	connect	view source
eu.posthog.com	connect	view source
example.com	connect	view source
github.com	connect	view source
image.invalid	connect	view source
mail.google.com	connect	view source
mail.proton.me	connect	view source
mail.rambler.ru	connect	view source
mail.yandex.ru	connect	view source
music.mts.ru	connect	view source
music.yandex.ru	connect	view source
o447951.ingest.sentry.io	connect	view source
obs-image-service-mz.obs.ru-moscow-1.hc.sbercloud.ru	connect	view source
outlook.live.com	connect	view source
react.dev	connect	view source
rnllpxxrjmparrrtdfhn.supabase.co	connect	view source
sentry.io	connect	view source
sun9-16.userapi.com	connect	view source
sun9-28.userapi.com	connect	view source
sun9-70.userapi.com	connect	view source
upsound-ai-staging.up.railway.app	connect	view source
upsound.invalid	connect	view source
upsound.local	connect	view source
us.i.posthog.com	connect	view source
us.posthog.com	connect	view source
vercel.live	connect	view source
vk.com	connect	view source
vkvideo.ru	connect	view source
we.upsound.org	connect	view source
www.icloud.com	connect	view source
www.instagram.com	connect	view source
www.tiktok.com	connect	view source
www.w3.org	connect	view source
www.youtube.com	connect	view source
yandex.com	connect	view source
zvuk.com	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 144) }. 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.

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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.

2026-10-05 first crawl

3 pages, 144 files, 5.4 MB; 29 libraries, 0 identifiers, 41 third-party hosts
29 libraries added
- @ant-design/x 2.9.0
- @inkeep/cxkit-js 0.5.119
- @clerk/ui 1.34.0
- @moveo-ai/web-client 0.117.0
- @joyfill/components 4.0.0-rc26
- mori-chat-widget 2.0.49
- spectorjs 0.9.33
- algoliasearch.zendesk-hc 3.0.0
- @pydantic/ai-chat-ui 2.3.0
- @marimo-team/frontend 0.25.0
- @desivocal/agents-cdn 1.0.21
- jspdf 4.2.1
- and 17 more
41 third-party hosts added
- react.dev
- www.w3.org
- example.com
- upsound-ai-staging.up.railway.app
- eu.posthog.com
- music.yandex.ru
- avatars.yandex.net
- music.mts.ru
- vk.com
- sun9-70.userapi.com
- sun9-16.userapi.com
- sun9-28.userapi.com
- and 29 more
144 files added

Questions about upsound.ai

How does PageSourceSearch know what upsound.ai 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 upsound.ai 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 upsound.ai?: 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 upsound.ai?: 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.