How does PageSourceSearch know what de-park.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 de-park.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 de-park.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 de-park.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

de-park.cz

Built with jquery 3.6.0, gtm, gtag, facebook-sdk, luckysheet 2.1.13, dygraphs 2.2.2, universalviewer 4.4.4, jquery-ui-slider 1.12.1, datetimepicker 0.1.39, jquery-ui-bundle 1.12.1-migrate, volantis-static 0.0.1761982841160, components-jqueryui 1.12.1 and more. 5 pages and 9 stored files, last crawled 2026-10-07.

rank 12,475,028 13 libraries 9 identifiers 6 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
jquery	3.6.0	2026-10-07
gtm		2026-10-07
gtag		2026-10-07
facebook-sdk		2026-10-07
luckysheet	2.1.13	2026-10-07
dygraphs	2.2.2	2026-10-07
universalviewer	4.4.4	2026-10-07
jquery-ui-slider	1.12.1	2026-10-07
datetimepicker	0.1.39	2026-10-07
jquery-ui-bundle	1.12.1-migrate	2026-10-07
volantis-static	0.0.1761982841160	2026-10-07
components-jqueryui	1.12.1	2026-10-07
stackedboost-shopify-assets	0.2.0	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)	945DE0F82ADC48072A7A66DDFA014AB4	view source
Facebook domain verification (Meta)	1llvp79m4ey33c4x509hsbc5moergv	view source
Facebook domain verification (Meta)	8tj9e33a1e5l6u5vwhvs8l5glkfsoe	view source
Google Analytics 4 measurement id (Google)	G-XXXXXXXX	view source
Google site verification (Google)	09fYtes1fpFmklsFi95j604XblkpWYiy6kmB_MVPs3U	view source
Google site verification (Google)	GMOnasWOw6VaGHdkc5s6EClbXNqnvaBdKAMwkTbeqdI	view source
Google site verification (Google)	VTF8QrZ86UB0_kUo1k-42v4I6h5V9mNUsjvutGt7FtM	view source
Google Tag Manager container (Google)	GTM-KGR2MZQ	view source
Pinterest site verification (Pinterest)	6b92fc9172f7432677f1e263dda2d828	view source

Third-party hosts

Hosts outside de-park.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
c.seznam.cz	script	view source
connect.facebook.net	script	view source
l.seznam.cz	script	view source
www.googletagmanager.com	script iframe	view source
www.youtube.com	iframe	view source
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 9) }. 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.de-park.cz/Services/Resource.ashx?ke…&domain=www.de-park.cz	js	522.2 KB	2026-10-07	2026-10-07
https://connect.facebook.net/cs_CZ/sdk.js	js library	not fetched	2026-10-07	2026-10-07
https://www.googletagmanager.com/gtag/js?id=G-XXXXXXXX	js library	not fetched	2026-10-07	2026-10-07
https://cdn.de-park.cz/Services/Resource.ashx?ke…&domain=www.de-park.cz	js	74.8 KB	2026-10-07	2026-10-07
https://www.de-park.cz/vernostni-system/	html	65.8 KB	2026-10-07	2026-10-07
https://www.de-park.cz/Jak-na-slevu/	html	64.6 KB	2026-10-07	2026-10-07
https://www.de-park.cz/doprava/	html	71.1 KB	2026-10-07	2026-10-07
https://www.de-park.cz/sleva-tydne-c846/	html	117.1 KB	2026-10-07	2026-10-07
https://www.de-park.cz/	html	614.5 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

5 pages, 9 files, 1.5 MB; 13 libraries, 9 identifiers, 6 third-party hosts
13 libraries added
- stackedboost-shopify-assets 0.2.0
- gtm
- gtag
- volantis-static 0.0.1761982841160
- jquery-ui-slider 1.12.1
- components-jqueryui 1.12.1
- datetimepicker 0.1.39
- luckysheet 2.1.13
- jquery-ui-bundle 1.12.1-migrate
- universalviewer 4.4.4
- dygraphs 2.2.2
- jquery 3.6.0
- and 1 more
9 identifiers added
- GTM-KGR2MZQ Google Tag Manager container
- G-XXXXXXXX Google Analytics 4 measurement id
- VTF8QrZ86UB0_kUo1k-42v4I6h5V9mNUsjvutGt7FtM Google site verification
- 09fYtes1fpFmklsFi95j604XblkpWYiy6kmB_MVPs3U Google site verification
- GMOnasWOw6VaGHdkc5s6EClbXNqnvaBdKAMwkTbeqdI Google site verification
- 945DE0F82ADC48072A7A66DDFA014AB4 Bing site verification
- 8tj9e33a1e5l6u5vwhvs8l5glkfsoe Facebook domain verification
- 1llvp79m4ey33c4x509hsbc5moergv Facebook domain verification
- 6b92fc9172f7432677f1e263dda2d828 Pinterest site verification
7 third-party hosts added
9 files added

Questions about de-park.cz

How does PageSourceSearch know what de-park.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 de-park.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 de-park.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 de-park.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.