How does PageSourceSearch know what modernclassrooms.org 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 modernclassrooms.org 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 modernclassrooms.org?

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 modernclassrooms.org?

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

modernclassrooms.org

Built with gtm, gtag, cloudflare-insights, hubspot, @vitest/utils 5.0.2, @unhead/vue 3.4.1. 5 pages and 10 stored files, last crawled 2026-10-02.

rank 578,382 6 libraries 8 identifiers 9 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
gtm		2026-10-02
gtag		2026-10-02
cloudflare-insights		2026-10-02
hubspot		2026-10-02
@vitest/utils	5.0.2	2026-10-02
@unhead/vue	3.4.1	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
Google Ads conversion id (Google)	AW-499304284	view source
Google Analytics 4 measurement id (Google)	G-399761748	view source
Google Analytics 4 measurement id (Google)	G-50L3JPEN5V	view source
Google Tag Manager container (Google)	GTM-NF4TB9V	view source
HubSpot portal id (HubSpot)	21421439	view source
Intercom app id (Intercom)	jl73cof1	view source
Pinterest site verification (Pinterest)	437b30287f888f158e001562dc828e5b	view source
Universal Analytics property id (Google)	UA-181401335-3	view source

Third-party hosts

Hosts outside modernclassrooms.org 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
assets.squarespace.com	script	view source
definitions.sqspcdn.com	script stylesheet	view source
fonts.googleapis.com	stylesheet	view source
js.hs-scripts.com	script	view source
static.cloudflareinsights.com	script	view source
static1.squarespace.com	script stylesheet	view source
www.googleoptimize.com	script	view source
www.googletagmanager.com	script 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://js.hs-scripts.com/21421439.js	js library	not fetched	2026-10-02	current
https://static.cloudflareinsights.com/beacon.min…85bb4c19e7a9bdbcba1788362987495	js library	not fetched	2026-10-02	current
https://www.googletagmanager.com/gtag/js?id=AW-499304284	js library	not fetched	2026-10-02	current
https://www.googletagmanager.com/gtag/js?id=G-399761748	js library	not fetched	2026-10-02	current
https://www.googletagmanager.com/gtag/js?id=UA-181401335-3	js library	not fetched	2026-10-02	current
https://www.modernclassrooms.org/mentorship	html	298.1 KB	2026-10-02	2026-10-02
https://www.modernclassrooms.org/contact-us	html	327.4 KB	2026-10-02	2026-10-02
https://www.modernclassrooms.org/cart	html	290.8 KB	2026-10-02	2026-10-02
https://www.modernclassrooms.org/blog	html	268.5 KB	2026-10-02	2026-10-02
https://www.modernclassrooms.org/	html	446.7 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, 10 files, 1.6 MB; 5 libraries, 8 identifiers, 9 third-party hosts
5 libraries added
- @vitest/utils 5.0.2
- gtm
- gtag
- hubspot
- cloudflare-insights
8 identifiers added
- GTM-NF4TB9V Google Tag Manager container
- AW-499304284 Google Ads conversion id
- UA-181401335-3 Universal Analytics property id
- G-50L3JPEN5V Google Analytics 4 measurement id
- G-399761748 Google Analytics 4 measurement id
- 437b30287f888f158e001562dc828e5b Pinterest site verification
- 21421439 HubSpot portal id
- jl73cof1 Intercom app id
12 third-party hosts added
10 files added

Questions about modernclassrooms.org

How does PageSourceSearch know what modernclassrooms.org 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 modernclassrooms.org 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 modernclassrooms.org?: 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 modernclassrooms.org?: 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.