How does PageSourceSearch know what serokell.io 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 serokell.io 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 serokell.io?

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 serokell.io?

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

serokell.io

Built with @finsweet/attributes 2.7.1, gtm, @clerk/ui 1.34.0, @wix/design-system 1.328.0, dashjs 5.2.1, @highlightjs/cdn-assets 11.12.0, @marimo-team/frontend 0.25.0, @reachfive/identity-core 1.42.0, @reachfive/identity-ui 2.1.0, jspdf 4.2.1, paulirish/lite-youtube-embed, reveal.js 6.0.2 and more. 5 pages and 134 stored files, last crawled 2026-10-02.

rank 435,158 53 libraries 1 identifier 28 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
@finsweet/attributes	2.7.1	2026-10-02
gtm		2026-10-02
@clerk/ui	1.34.0	2026-10-02
@wix/design-system	1.328.0	2026-10-02
dashjs	5.2.1	2026-10-02
@highlightjs/cdn-assets	11.12.0	2026-10-02
@marimo-team/frontend	0.25.0	2026-10-02
@reachfive/identity-core	1.42.0	2026-10-02
@reachfive/identity-ui	2.1.0	2026-10-02
jspdf	4.2.1	2026-10-02
paulirish/lite-youtube-embed		2026-10-02
reveal.js	6.0.2	2026-10-02
simplemde	1.11.2	2026-10-02
easymde	2.21.0	2026-10-02
spectorjs	0.9.33	2026-10-02
@mermaid-js/layout-elk	1.0.0	2026-10-02
universalviewer	4.4.4	2026-10-02
@govbr-ds/core	3.7.0	2026-10-02
@moveo-ai/web-client	0.117.0	2026-10-02
biel-search	0.1.89	2026-10-02
diff2html	3.4.56	2026-10-02
volantis-static	0.0.1761982841160	2026-10-02
ovenplayer	0.10.54	2026-10-02
graphql-playground-react	1.7.28	2026-10-02
filterizr	2.2.4	2026-10-02
@recogito/annotorious	2.7.14	2026-10-02
@machi-pla/ai-chatbot	0.1.25	2026-10-02
@redocly/realm	0.137.0	2026-10-02
highlightjs	9.16.2	2026-10-02
@descope/web-components-ui	3.21.0	2026-10-02
wsemi	1.9.4	2026-10-02
@teipublisher/pb-components	3.6.8	2026-10-02
dmn-js	17.12.0	2026-10-02
@ant-design/x	2.9.0	2026-10-02
mori-chat-widget	2.0.49	2026-10-02
@crystaldesign/diva-core	26.11.0	2026-10-02
@okta/okta-signin-widget	7.49.1	2026-10-02
@inkeep/agents-ui-js-cloud	0.17.8	2026-10-02
@formbird/angular-elements	8.5.10	2026-10-02
@joyfill/components	4.0.0-rc26	2026-10-02
@unbabel/ui	5.19.0	2026-10-02
@pyscript/core	0.7.31	2026-10-02
@limetech/lime-elements	40.5.1	2026-10-02
flatpickr	4.6.13	2026-09-24
@inkeep/cxkit-js	0.5.119	2026-09-24
luckysheet	2.1.13	2026-09-24
he	1.2.0	2026-09-24
@jupyter-widgets/html-manager	1.0.15	2026-09-24
@tolgee/web	7.2.1	2026-09-24
vditor	4.0.0	2026-09-24
latex.js	0.12.6	2026-09-24
@memori.ai/memori-webcomponent	8.3.3	2026-09-24
@derockdev/discord-components-core	3.6.1	2026-09-24

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
Sentry DSN host (Sentry)	sentry.hcaptcha.com	view source

Third-party hosts

Hosts outside serokell.io 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
analytics.google.com	connect	view source
api.whatsapp.com	connect	view source
cdn.jsdelivr.net	connect	view source
certification.haskell.foundation	connect	view source
coinmarketcap.com	connect	view source
developers.google.com	connect	view source
docs.stakerdao.com	connect	view source
en.wikipedia.org	connect	view source
eprint.iacr.org	connect	view source
github.com	connect	view source
js.hcaptcha.com	connect	view source
maxcdn.bootstrapcdn.com	connect	view source
open.spotify.com	connect	view source
outlook.live.com	connect	view source
react.dev	connect	view source
sc.lfeeder.com	connect	view source
schema.org	connect	view source
serokell.medium.com	connect	view source
twitter.com	connect	view source
www.facebook.com	connect	view source
www.google.com	connect	view source
www.googletagmanager.com	connect	view source
www.linkedin.com	connect	view source
www.markdownguide.org	connect	view source
www.udemy.com	connect	view source
www.w3.org	connect	view source
www.youtube.com	connect	view source
youtube.com	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 134) }. 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
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https://www.googletagmanager.com/gtm.js	js library	not fetched	2026-10-02	current
https://serokell.io/_next/static/chunks/9780.c36aba723651885f.js	js	151 KB	2026-10-02	current
https://serokell.io/_next/static/chunks/8986.304ff14914da1bd7.js	js	80 B	2026-10-02	current
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https://serokell.io/_next/static/chunks/6144.4dd4b7cb08bce412.js	js	954 B	2026-10-02	current
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https://serokell.io/_next/static/chunks/3299.f4cbd4824d596d7a.js	js	100.5 KB	2026-10-02	current
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https://serokell.io/_next/static/chunks/231.2abe7b84aeafee52.js	js	167 B	2026-10-02	current
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https://serokell.io/_next/static/chunks/5181-957e4e273c4ed284.js	js	163.2 KB	2026-10-02	current
https://serokell.io/_next/static/chunks/1623-78a42102eb9e9fb8.js	js	11.5 KB	2026-10-02	current
https://serokell.io/_next/static/chunks/7543-f00a884af7865305.js	js	10.5 KB	2026-10-02	current
https://serokell.io/_next/static/chunks/8709-64ba79d3831a0180.js	js	24.3 KB	2026-10-02	current
https://serokell.io/_next/static/chunks/pages/_app-3e210fa84a5a8139.js	js	130 KB	2026-10-02	current
https://serokell.io/_next/static/chunks/main-adefd69c839c77f9.js	js	143.2 KB	2026-10-02	current
https://serokell.io/_next/static/chunks/framework-3606079ef405d390.js	js	367.8 KB	2026-10-02	current
https://serokell.io/_next/static/chunks/webpack-041c96a07eb883bd.js	js	3.7 KB	2026-10-02	2026-10-02
https://serokell.io/_next/static/chunks/polyfills-42372ed130431b0a.js	js	110 KB	2026-10-02	current
https://serokell.io/projects	html	28.9 KB	2026-10-02	2026-10-02
https://serokell.io/contacts	html	31.6 KB	2026-10-02	2026-10-02
https://serokell.io/news	html	125.5 KB	2026-10-02	2026-10-02
https://serokell.io/blog	html	138.5 KB	2026-10-02	2026-10-02
https://serokell.io/	html	100.5 KB	2026-10-02	2026-10-02
https://serokell.io/_next/static/cMOreCTy0qTIxkUzf_pyq/_ssgManifest.js	js	304 B	2026-09-24	current
https://serokell.io/_next/static/cMOreCTy0qTIxkUzf_pyq/_buildManifest.js	js	13 KB	2026-09-24	current
https://serokell.io/_next/static/chunks/webpack-39809d414a0440f5.js	js	3.7 KB	2026-09-24	current

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.

2026-10-02 first crawl

5 pages, 131 files, 10.4 MB; 44 libraries, 1 identifier, 28 third-party hosts
44 libraries added
- jspdf 4.2.1
- @reachfive/identity-core 1.42.0
- @reachfive/identity-ui 2.1.0
- ovenplayer 0.10.54
- @recogito/annotorious 2.7.14
- dashjs 5.2.1
- graphql-playground-react 1.7.28
- @inkeep/agents-ui-js-cloud 0.17.8
- mori-chat-widget 2.0.49
- universalviewer 4.4.4
- @ant-design/x 2.9.0
- @joyfill/components 4.0.0-rc26
- and 32 more
1 identifier added
- sentry.hcaptcha.com Sentry DSN host
28 third-party hosts added
- github.com
- react.dev
- www.w3.org
- developers.google.com
- www.google.com
- cdn.jsdelivr.net
- www.googletagmanager.com
- analytics.google.com
- schema.org
- sc.lfeeder.com
- twitter.com
- www.facebook.com
- and 16 more
131 files added

Questions about serokell.io

How does PageSourceSearch know what serokell.io 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 serokell.io 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 serokell.io?: 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 serokell.io?: 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.