How does PageSourceSearch know what isep.pt 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 isep.pt 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 isep.pt?

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 isep.pt?

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

isep.pt

Built with gtag, bxslider 4.2.17, qtip2 3.0.3, jssocials 1.5.0, selectric 1.13.0, twitter-widgets, svg-pan-zoom 3.6.2, universalviewer 4.4.4, datetimepicker 0.1.39, jquery-ui-bundle 1.12.1-migrate, layui-src 2.6.8, bootstrap-iconpicker 1.8.2. 5 pages and 12 stored files, last crawled 2026-10-02.

rank 1,315,873 12 libraries 1 identifier 17 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
gtag		2026-10-02
bxslider	4.2.17	2026-10-02
qtip2	3.0.3	2026-10-02
jssocials	1.5.0	2026-10-02
selectric	1.13.0	2026-10-02
twitter-widgets		2026-10-02
svg-pan-zoom	3.6.2	2026-10-02
universalviewer	4.4.4	2026-10-02
datetimepicker	0.1.39	2026-10-02
jquery-ui-bundle	1.12.1-migrate	2026-10-02
layui-src	2.6.8	2026-10-02
bootstrap-iconpicker	1.8.2	2026-10-02

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
Google Analytics 4 measurement id (Google)	G-DM23NHK9JJ	view source

Third-party hosts

Hosts outside isep.pt 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
digg.com	connect	view source
pinterest.com	connect	view source
platform.twitter.com	connect	view source
player.vimeo.com	connect	view source
plusone.google.com	connect	view source
posterous.com	connect	view source
reddit.com	connect	view source
twitter.com	connect	view source
www.apple.com	connect	view source
www.facebook.com	connect	view source
www.googletagmanager.com	script	view source
www.in1.com	connect	view source
www.linkedin.com	connect	view source
www.stumbleupon.com	connect	view source
www.tumblr.com	connect	view source
www.w3.org	connect	view source
www.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 12) }. 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
http://platform.twitter.com/widgets.js	js library	not fetched	2026-10-02	current
https://isep.pt/bundles/jqueryval?v=CscDCYKiyigBhIQTJsxhIQqf-LoZUf7GH2o1SgDjN2I1	js	24.9 KB	2026-10-02	current
https://www.googletagmanager.com/gtag/js?id=G-DM23NHK9JJ	js library	not fetched	2026-10-02	current
https://isep.pt/bundles/scripts?v=1AxSt6Stc5EIHFD3O5RIyns8zNR_VGJF_WeO0t7tBPY1	js	151.6 KB	2026-10-02	current
https://isep.pt/bundles/bootstrap?v=ywt1K9N0zdumpV_NvBHbW5wmG2Ez9esS6IrqNz30mmU1	js	30.8 KB	2026-10-02	current
https://isep.pt/bundles/jquery?v=b-ycsi1AiCUst7epOQo9jZejUNTu4m5FzGbdr_UOs901	js	343.4 KB	2026-10-02	current
https://isep.pt/ISEP/IsepWorld	html	84.7 KB	2026-10-02	2026-10-02
https://isep.pt/bundles/modernizr?v=wBEWDufH_8Md-Pbioxomt90vm6tJN2Pyy9u9zHtWsPo1	js	10.7 KB	2026-10-02	current
https://isep.pt/ISEP/History	html	85.8 KB	2026-10-02	2026-10-02
https://isep.pt/Home	html	114.8 KB	2026-10-02	2026-10-02
https://isep.pt/ISEP/Contacts	html	90.2 KB	2026-10-02	2026-10-02
https://isep.pt/	html	114.8 KB	2026-10-02	2026-10-02

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, 12 files, 1 MB; 12 libraries, 1 identifier, 17 third-party hosts
12 libraries added
- gtag
- jssocials 1.5.0
- svg-pan-zoom 3.6.2
- bxslider 4.2.17
- layui-src 2.6.8
- universalviewer 4.4.4
- datetimepicker 0.1.39
- selectric 1.13.0
- jquery-ui-bundle 1.12.1-migrate
- bootstrap-iconpicker 1.8.2
- qtip2 3.0.3
- twitter-widgets
1 identifier added
- G-DM23NHK9JJ Google Analytics 4 measurement id
17 third-party hosts added
- www.googletagmanager.com
- www.w3.org
- www.youtube.com
- www.apple.com
- twitter.com
- platform.twitter.com
- player.vimeo.com
- www.facebook.com
- www.linkedin.com
- www.in1.com
- www.tumblr.com
- digg.com
- and 5 more
12 files added

Questions about isep.pt

How does PageSourceSearch know what isep.pt 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 isep.pt 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 isep.pt?: 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 isep.pt?: 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.