How does PageSourceSearch know what engineeringnz.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 engineeringnz.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 engineeringnz.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 engineeringnz.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

engineeringnz.org

Built with gtm, webpack, dompurify 3.2.4, @wix/design-system 1.328.0, facebook-pixel, @pdftron/webviewer 12.1.0, @linways/table-to-excel 1.0.4, vue-ctk-date-time-picker 2.6.1, kore-web-sdk 11.28.1, vue-moment 4.1.0, @kwaeri/user-experience 0.1.13. 5 pages and 9 stored files, last crawled 2026-10-02.

rank 541,883 11 libraries 5 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
gtm		2026-10-02
webpack		2026-10-02
dompurify	3.2.4	2026-10-02
@wix/design-system	1.328.0	2026-10-02
facebook-pixel		2026-10-02
@pdftron/webviewer	12.1.0	2026-10-02
@linways/table-to-excel	1.0.4	2026-10-02
vue-ctk-date-time-picker	2.6.1	2026-10-02
kore-web-sdk	11.28.1	2026-09-24
vue-moment	4.1.0	2026-09-24
@kwaeri/user-experience	0.1.13	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
Facebook domain verification (Meta)	ung7t72gaatoc9pbazjpgf6lhewtir	view source
Facebook domain verification (Meta)	vu1kjdt5lw2kzk2sx8nev2517mhihr	view source
Meta pixel id (Meta)	875955207898595	view source
Google site verification (Google)	D4UkUBbhUc2duui8QCzeUtvNvbe51QUmfKSXA9wRDdo	view source
Google Tag Manager container (Google)	GTM-MW7X8XG	view source

Third-party hosts

Hosts outside engineeringnz.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
a.static.lightning.force.com	connect	view source
aus84.sfdc-vwfla6.salesforce.com	connect	view source
cdnjs.cloudflare.com	script	view source
d2rjvl4n5h2b61.cloudfront.net	script stylesheet	view source
www.googletagmanager.com	iframe	view source
www.w3.org	connect	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://members.engineeringnz.org/s/sfsites/l/%7…iewType%22%3A%22Published%22%7D	js	606.6 KB	2026-10-02	2026-10-02
https://members.engineeringnz.org/s/sfsites/l/%7…&rv=1788996564000	js	4.8 KB	2026-10-02	2026-10-02
https://members.engineeringnz.org/s/sfsites/aura…NC4xOTIuODM4ODYwOA/aura_prod.js	js	935.9 KB	2026-10-02	current
https://www.engineeringnz.org/about/volunteer/	html	130.7 KB	2026-10-02	current
https://www.engineeringnz.org/news-insights/	html	150.3 KB	2026-10-02	2026-10-02
https://www.engineeringnz.org/search/	html	123.2 KB	2026-10-02	current
https://members.engineeringnz.org/s/login/?language=en_US	html	375.9 KB	2026-10-02	2026-10-02
https://www.engineeringnz.org/	html	141.1 KB	2026-10-02	2026-10-02
https://members.engineeringnz.org/s/sfsites/l/%7…&rv=1788996564000	js	4.8 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

5 pages, 8 files, 2.4 MB; 8 libraries, 5 identifiers, 6 third-party hosts
8 libraries added
- gtm
- facebook-pixel
- vue-ctk-date-time-picker 2.6.1
- @pdftron/webviewer 12.1.0
- @linways/table-to-excel 1.0.4
- @wix/design-system 1.328.0
- webpack
- dompurify 3.2.4
5 identifiers added
- GTM-MW7X8XG Google Tag Manager container
- vu1kjdt5lw2kzk2sx8nev2517mhihr Facebook domain verification
- 875955207898595 Meta pixel id
- D4UkUBbhUc2duui8QCzeUtvNvbe51QUmfKSXA9wRDdo Google site verification
- ung7t72gaatoc9pbazjpgf6lhewtir Facebook domain verification
7 third-party hosts added
8 files added

Questions about engineeringnz.org

How does PageSourceSearch know what engineeringnz.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 engineeringnz.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 engineeringnz.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 engineeringnz.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.