How does PageSourceSearch know what elektro-kolmann.cz 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 elektro-kolmann.cz 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 elektro-kolmann.cz?

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 elektro-kolmann.cz?

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

elektro-kolmann.cz

Built with bootstrap 4.3.1, jquery 3.3.1, gtag, google-analytics, recaptcha, cookiebot. 4 pages and 10 stored files, last crawled 2026-10-07.

rank 12,362,949 6 libraries 4 identifiers 16 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
bootstrap	4.3.1	2026-10-07
jquery	3.3.1	2026-10-07
gtag		2026-10-07
google-analytics		2026-10-07
recaptcha		2026-10-07
cookiebot		2026-10-07

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
Bing site verification (Microsoft)	BE554480417513869D445B0E40300CA1	view source
Google Analytics 4 measurement id (Google)	G-YWF4X8QBXE	view source
reCAPTCHA site key (Google)	6LdiWXQcAAAAAEFWM4HU4Y3C2fycvvQagspF9uW-	view source
Universal Analytics property id (Google)	UA-80569457-1	view source

Third-party hosts

Hosts outside elektro-kolmann.cz 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
ajax.googleapis.com	script	view source
api4.mapy.cz	connect	view source
cdnjs.cloudflare.com	stylesheet	view source
consent.cookiebot.com	script	view source
dobresenajim.cz	connect	view source
fonts.googleapis.com	stylesheet	view source
maps.googleapis.com	connect	view source
stackpath.bootstrapcdn.com	script stylesheet	view source
topkontakt.idnes.cz	connect	view source
webmium.com	connect	view source
webmiumtest.blob.core.windows.net	stylesheet	view source
www.firmy.cz	connect	view source
www.google.com	script	view source
www.googletagmanager.com	script	view source
www.w3.org	connect	view source
www.youtube.com	iframe	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 10) }. 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://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js	js library	not fetched	2026-10-07	2026-10-07
https://consent.cookiebot.com/uc.js	js library	not fetched	2026-10-07	2026-10-07
https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js	js library	not fetched	2026-10-07	2026-10-07
https://www.elektro-kolmann.cz/assets/js/client.js?v=20260918.2r7023	js	63.9 KB	2026-10-07	2026-10-07
https://www.google.com/recaptcha/api.js?render=6…AAAAEFWM4HU4Y3C2fycvvQagspF9uW-	js library	not fetched	2026-10-07	2026-10-07
https://www.googletagmanager.com/gtag/js?id=G-YWF4X8QBXE	js library	not fetched	2026-10-07	2026-10-07
https://www.elektro-kolmann.cz/bezpecnostni-sluzby	html	41.3 KB	2026-10-07	2026-10-07
https://www.elektro-kolmann.cz/autoalarmy	html	51.1 KB	2026-10-07	2026-10-07
https://www.elektro-kolmann.cz/alarmy	html	55.9 KB	2026-10-07	2026-10-07
https://www.elektro-kolmann.cz/	html	49.2 KB	2026-10-07	2026-10-07

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.

2026-10-07 first crawl

4 pages, 10 files, 261.4 KB; 6 libraries, 4 identifiers, 16 third-party hosts
6 libraries added
- recaptcha
- google-analytics
- gtag
- cookiebot
- jquery 3.3.1
- bootstrap 4.3.1
4 identifiers added
- 6LdiWXQcAAAAAEFWM4HU4Y3C2fycvvQagspF9uW- reCAPTCHA site key
- UA-80569457-1 Universal Analytics property id
- G-YWF4X8QBXE Google Analytics 4 measurement id
- BE554480417513869D445B0E40300CA1 Bing site verification
17 third-party hosts added
10 files added

Questions about elektro-kolmann.cz

How does PageSourceSearch know what elektro-kolmann.cz 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 elektro-kolmann.cz 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 elektro-kolmann.cz?: 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 elektro-kolmann.cz?: 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.