How does PageSourceSearch know what rockfordheating.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 rockfordheating.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 rockfordheating.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 rockfordheating.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

rockfordheating.com

Built with gtm, facebook-pixel, @vitest/utils 5.0.2, stackedboost-shopify-assets 0.2.0. 5 pages and 8 stored files, last crawled 2026-10-07.

rank 12,407,469 4 libraries 5 identifiers 14 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		2026-10-07
facebook-pixel		2026-10-07
@vitest/utils	5.0.2	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
Meta pixel id (Meta)	770150495158032	view source
Meta pixel id (Meta)	895570618485192	view source
Google site verification (Google)	-WlU1BxRjG7yXbw9rZ3A3bCiH6pvYAGbcS46IVByQ7E	view source
Google site verification (Google)	5S5FP0Dk9xEyxstQbJK5Vd6abCI0JXeQonF2Dem7P7Q	view source
Google Tag Manager container (Google)	GTM-W487CGFD	view source

Third-party hosts

Hosts outside rockfordheating.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
ad.doubleclick.net	connect	view source
ade.googlesyndication.com	connect	view source
adservice.google.com	connect	view source
app.termly.io	script	view source
cct.google	connect	view source
cdn.hibuwebsites.com	stylesheet	view source
dh-static-files.s3.amazonaws.com	script	view source
m.youtube.com	connect	view source
pagead2.googlesyndication.com	connect	view source
static-res-cdn.websites.hibu.com	script stylesheet	view source
www.google.com	connect	view source
www.googleadservices.com	connect	view source
www.googletagmanager.com	iframe 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 8) }. 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://www.rockfordheating.com/qzn74mdkpb-458fb…/j2RwQW1YEXaxOgrNeEcQPUfWzd8	js	489.5 KB	2026-10-07	2026-10-07
https://www.rockfordheating.com/dnc17plhbz-458fb…/j2RwQW1YEXaxOgrNeEcQPUfWzd8	js	489.5 KB	2026-10-07	2026-10-07
https://www.rockfordheating.com/rvt89kxmgp-458fb…/j2RwQW1YEXaxOgrNeEcQPUfWzd8	js	489.5 KB	2026-10-07	2026-10-07
https://www.rockfordheating.com/heating-services	html	197.7 KB	2026-10-07	2026-10-07
https://www.rockfordheating.com/request-info-form	html	149.5 KB	2026-10-07	2026-10-07
https://www.rockfordheating.com/contact	html	234.2 KB	2026-10-07	2026-10-07
https://www.rockfordheating.com/	html	418.9 KB	2026-10-07	2026-10-07
https://www.rockfordheating.com/about	html	222.7 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, 8 files, 2.6 MB; 4 libraries, 5 identifiers, 14 third-party hosts
4 libraries added
- @vitest/utils 5.0.2
- gtm
- facebook-pixel
- stackedboost-shopify-assets 0.2.0
5 identifiers added
- GTM-W487CGFD Google Tag Manager container
- 770150495158032 Meta pixel id
- 895570618485192 Meta pixel id
- -WlU1BxRjG7yXbw9rZ3A3bCiH6pvYAGbcS46IVByQ7E Google site verification
- 5S5FP0Dk9xEyxstQbJK5Vd6abCI0JXeQonF2Dem7P7Q Google site verification
16 third-party hosts added
8 files added

Questions about rockfordheating.com

How does PageSourceSearch know what rockfordheating.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 rockfordheating.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 rockfordheating.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 rockfordheating.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.