How does PageSourceSearch know what bckrs.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 bckrs.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 bckrs.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 bckrs.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

bckrs.ai

Built with @clerk/ui 1.34.0, @wix/design-system 1.328.0, @amplitude/amplitude-js-gtm 3.25.0, dashjs 5.2.1, @marimo-team/frontend 0.25.0, in-renderer-js 1.2.3, @reachfive/identity-core 1.42.0, @reachfive/identity-ui 2.1.0, jspdf 4.2.1, recharts 3.10.1, @cognigy/webchat 3.50.0, xlsx-js-style 1.2.0 and more. 5 pages and 104 stored files, last crawled 2026-10-05.

23 libraries 0 identifiers 46 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	2026-10-05
@wix/design-system	1.328.0	2026-10-05
@amplitude/amplitude-js-gtm	3.25.0	2026-10-05
dashjs	5.2.1	2026-10-05
@marimo-team/frontend	0.25.0	2026-10-05
in-renderer-js	1.2.3	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
recharts	3.10.1	2026-10-05
@cognigy/webchat	3.50.0	2026-10-05
xlsx-js-style	1.2.0	2026-10-05
pdf.js	3.11.174	2026-10-05
@adalong/widget	7.15.1	2026-10-05
@meowwolf/meowwolf-main	1.5.4	2026-10-05
agora-rtc-sdk-ng	4.24.8	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
@sledge-app/js	2.0.114	2026-10-05
@tsocial/tvweb-sdk	5.38.6	2026-10-05
@percy.ai/your-team	1.1.10	2026-10-05
amcharts3	3.21.15	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 bckrs.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
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.lab.amplitude.com	connect	view source
api.lab.eu.amplitude.com	connect	view source
api2.amplitude.com	connect	view source
app.amplitude.com	connect	view source
app.eu.amplitude.com	connect	view source
apps.stag2.amplitude.com	connect	view source
bckrs-ai-backend.onrender.com	connect	view source
cdn.amplitude.com	connect	view source
cdn.eu.amplitude.com	connect	view source
cdnjs.cloudflare.com	connect	view source
diagnostics.prod.eu-central-1.amplitude.com	connect	view source
diagnostics.prod.us-west-2.amplitude.com	connect	view source
docs.google.com	connect	view source
example.com	connect	view source
flag.lab.amplitude.com	connect	view source
flag.lab.eu.amplitude.com	connect	view source
fonts.googleapis.com	connect	view source
fonts.gstatic.com	connect	view source
foo.bar	connect	view source
github.com	connect	view source
linkedin.com	connect	view source
local.amplitude.com	connect	view source
purl.oclc.org	connect	view source
reactjs.org	connect	view source
schema.org	connect	view source
schemas.microsoft.com	connect	view source
schemas.openxmlformats.org	connect	view source
sifted.eu	connect	view source
sr-client-cfg.amplitude.com	connect	view source
sr-client-cfg.eu.amplitude.com	connect	view source
static.hotjar.com	connect	view source
techcrunch.com	connect	view source
twitter.com	connect	view source
use.typekit.net	connect	view source
venturebeat.com	connect	view source
vercel.live	connect	view source
www.example.com	connect	view source
www.google.com	connect	view source
www.linkedin.com	connect	view source
www.w3.org	connect	view source
your-company.com	connect	view source
ztagsvfbvzhquolwaqxy.supabase.co	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 104) }. 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://bckrs.ai/_next/static/chunks/8660.855a4a957e2f29fc.js	js	7 KB	2026-10-05	2026-10-05
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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

5 pages, 104 files, 4.3 MB; 23 libraries, 0 identifiers, 46 third-party hosts
23 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
- @clerk/ui 1.34.0
- @cognigy/webchat 3.50.0
- @sledge-app/js 2.0.114
- @adalong/widget 7.15.1
- agora-rtc-sdk-ng 4.24.8
- and 11 more
46 third-party hosts added
- github.com
- vercel.live
- reactjs.org
- www.w3.org
- fonts.googleapis.com
- fonts.gstatic.com
- use.typekit.net
- bckrs-ai-backend.onrender.com
- ztagsvfbvzhquolwaqxy.supabase.co
- static.hotjar.com
- schema.org
- your-company.com
- and 34 more
104 files added

Questions about bckrs.ai

How does PageSourceSearch know what bckrs.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 bckrs.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 bckrs.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 bckrs.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.