How does PageSourceSearch know what quantumday.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 quantumday.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 quantumday.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 quantumday.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

quantumday.com

Built with google-analytics, google-apis, @vitest/utils 5.0.2, @zanichelli/zanichelli-footer 1.1.1. 5 pages and 6 stored files, last crawled 2026-10-02.

rank 682,303 4 libraries 4 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
google-analytics		2026-10-02
google-apis		2026-10-02
@vitest/utils	5.0.2	2026-10-02
@zanichelli/zanichelli-footer	1.1.1	2026-09-24

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
AdSense publisher id (Google)	ca-pub-4462173987823777	view source
Google site verification (Google)	MpCj_CpGlbvVJxjBe4P_g2m0B1s_74_JU_10T6rf12s	view source
Pinterest site verification (Pinterest)	8e7b7d75cb97bc6cee3f28c78fda27e0	view source
Universal Analytics property id (Google)	UA-97757-7	view source

Third-party hosts

Hosts outside quantumday.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
apis.google.com	script	view source
pagead2.googlesyndication.com	script	view source
www.blogger.com	script stylesheet	view source
www.google.com	script stylesheet	view source
www.play-asia.com	iframe	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 6) }. 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://apis.google.com/js/platform.js	js library	not fetched	2026-10-02	current
https://www.quantumday.com/p/about-quantum-day.html	html	73.6 KB	2026-10-02	2026-10-02
https://www.quantumday.com/p/blog-page.html	html	66.1 KB	2026-10-02	2026-10-02
https://www.quantumday.com/search/label/astronomy	html	188.6 KB	2026-10-02	2026-10-02
https://www.quantumday.com/	html	72.9 KB	2026-10-02	2026-10-02
https://www.quantumday.com/2020/09/a-brand-new-day.html	html	67.3 KB	2026-09-24	current

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

4 pages, 5 files, 401.2 KB; 3 libraries, 4 identifiers, 6 third-party hosts
3 libraries added
- @vitest/utils 5.0.2
- google-analytics
- google-apis
4 identifiers added
- UA-97757-7 Universal Analytics property id
- ca-pub-4462173987823777 AdSense publisher id
- MpCj_CpGlbvVJxjBe4P_g2m0B1s_74_JU_10T6rf12s Google site verification
- 8e7b7d75cb97bc6cee3f28c78fda27e0 Pinterest site verification
8 third-party hosts added
5 files added

Questions about quantumday.com

How does PageSourceSearch know what quantumday.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 quantumday.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 quantumday.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 quantumday.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.