How does PageSourceSearch know what keferboeck.com 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 keferboeck.com 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 keferboeck.com?

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 keferboeck.com?

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

keferboeck.com

Built with @clerk/ui 1.34.0, mermaid 12.0.0, d3 7.9.0, dashjs 5.2.1, @marimo-team/frontend 0.25.0, @inkeep/cxkit-js 0.5.119, facebook-pixel, @reachfive/identity-core 1.42.0, @reachfive/identity-ui 2.1.0, jspdf 4.2.1, topojson-client 3.1.0, @sentry-internal/replay 10.57.0 and more. 5 pages and 119 stored files, last crawled 2026-10-04.

rank 10,704,008 29 libraries 1 identifier 21 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/ui	1.34.0	2026-10-04
mermaid	12.0.0	2026-10-04
d3	7.9.0	2026-10-04
dashjs	5.2.1	2026-10-04
@marimo-team/frontend	0.25.0	2026-10-04
@inkeep/cxkit-js	0.5.119	2026-10-04
facebook-pixel		2026-10-04
@reachfive/identity-core	1.42.0	2026-10-04
@reachfive/identity-ui	2.1.0	2026-10-04
jspdf	4.2.1	2026-10-04
topojson-client	3.1.0	2026-10-04
@sentry-internal/replay	10.57.0	2026-10-04
linkedin-insight		2026-10-04
fathom		2026-10-04
spectorjs	0.9.33	2026-10-04
@moveo-ai/web-client	0.117.0	2026-10-04
datamaps	0.5.10	2026-10-04
vditor	4.0.0	2026-10-04
ovenplayer	0.10.54	2026-10-04
cytoscape	3.34.3	2026-10-04
graphql-playground-react	1.7.28	2026-10-04
@recogito/annotorious	2.7.14	2026-10-04
@stlite/browser	1.9.2	2026-10-04
@ant-design/x	2.9.0	2026-10-04
@prefecthq/prefab-ui	0.20.2	2026-10-04
mori-chat-widget	2.0.49	2026-10-04
@joyfill/components	4.0.0-rc26	2026-10-04
@pydantic/ai-chat-ui	2.3.0	2026-10-04
@mermaid-js/parser	2.0.0	2026-10-04

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)	o4509278100586496.ingest.de.sentry.io	view source

Third-party hosts

Hosts outside keferboeck.com 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
cdn.usefathom.com	connect	view source
connect.facebook.net	connect	view source
en.wikipedia.org	connect	view source
example.com	connect	view source
get.geojs.io	connect	view source
github.com	connect	view source
growcentric.ai	connect	view source
react.dev	connect	view source
snap.licdn.com	connect	view source
stackoverflow.com	connect	view source
static.hotjar.com	connect	view source
wa.me	connect	view source
www.google.co.uk	connect	view source
www.google.com	connect	view source
www.googletagmanager.com	connect	view source
www.instagram.com	connect	view source
www.kingston.ac.uk	connect	view source
www.linkedin.com	connect	view source
www.lse.ac.uk	connect	view source
www.millwallfc.co.uk	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 119) }. 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://cdn.usefathom.com/script.js	js library	not fetched	2026-10-04	2026-10-04
https://connect.facebook.net/en_US/fbevents.js	js library	not fetched	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/9960.c7a2f39fe021ecd1.js	js	2.1 KB	2026-10-04	2026-10-04
https://snap.licdn.com/li.lms-analytics/insight.min.js	js library	not fetched	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/9921.c40d0844bff4b7c7.js	js	547 B	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/9856.9aa029d154965618.js	js	27.8 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/9325.592f1c23d2864352.js	js	2.5 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/9677.5605fa6628667f70.js	js	15.9 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/9256.b46d5d04244543c2.js	js	2.3 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/9020.4053eb04579870a1.js	js	16 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/8907.1a0ddd818009d62e.js	js	20.2 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/8808.922f5b3709c42987.js	js	548 B	2026-10-04	2026-10-04
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https://keferboeck.com/_next/static/chunks/webpack-c7556f18fb52ca45.js	js	5.9 KB	2026-10-04	2026-10-04
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https://keferboeck.com/_next/static/chunks/7610-6bcc10c8b61d7e55.js	js	830.2 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/app/layout-848304e14e607826.js	js	16.6 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/main-app-6977a447721ee1de.js	js	13.3 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/1038-ab945f773ad4ae84.js	js	413 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/4bd1b696-a292fad66b3dbfea.js	js	169.3 KB	2026-10-04	2026-10-04
https://keferboeck.com/_next/static/chunks/52774a7f-f5a0c59e6862ad1b.js	js	115.4 KB	2026-10-04	2026-10-04
https://keferboeck.com/en-gb/about	html	61.7 KB	2026-10-04	2026-10-04
https://keferboeck.com/en-gb/articles	html	1.2 MB	2026-10-04	2026-10-04
https://keferboeck.com/en-gb/pricing	html	94.8 KB	2026-10-04	2026-10-04
https://keferboeck.com/en-gb/product-and-services	html	74.6 KB	2026-10-04	2026-10-04
https://keferboeck.com/en-gb	html	262.7 KB	2026-10-04	2026-10-04

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.

2026-10-04 first crawl

5 pages, 119 files, 7.2 MB; 29 libraries, 1 identifier, 21 third-party hosts
29 libraries added
- @sentry-internal/replay 10.57.0
- @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
- jspdf 4.2.1
- @reachfive/identity-core 1.42.0
- @reachfive/identity-ui 2.1.0
- ovenplayer 0.10.54
- and 17 more
1 identifier added
- o4509278100586496.ingest.de.sentry.io Sentry DSN host
21 third-party hosts added
- react.dev
- www.w3.org
- example.com
- cdn.usefathom.com
- www.googletagmanager.com
- static.hotjar.com
- snap.licdn.com
- connect.facebook.net
- www.linkedin.com
- get.geojs.io
- wa.me
- growcentric.ai
- and 9 more
119 files added

Questions about keferboeck.com

How does PageSourceSearch know what keferboeck.com 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 keferboeck.com 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 keferboeck.com?: 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 keferboeck.com?: 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.