How does PageSourceSearch know what mymaastricht.nl 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 mymaastricht.nl 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 mymaastricht.nl?

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 mymaastricht.nl?

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

mymaastricht.nl

Built with react, classnames, webpack, popper.js, moment, lodash, masonry-layout, react-dom, @babel/runtime, scheduler, google-analytics, facebook-pixel and more. 5 pages and 10 stored files, last crawled 2026-10-02.

rank 508,307 91 libraries 0 identifiers 25 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
react		2026-10-02
classnames		2026-10-02
webpack		2026-10-02
popper.js		2026-10-02
moment		2026-10-02
lodash		2026-10-02
masonry-layout		2026-10-02
react-dom		2026-10-02
@babel/runtime		2026-10-02
scheduler		2026-10-02
google-analytics		2026-10-02
facebook-pixel		2026-10-02
imagesloaded		2026-10-02
react-router-dom		2026-10-02
react-router		2026-10-02
styled-components		2026-10-02
react-is		2026-10-02
isarray		2026-10-02
path-to-regexp		2026-10-02
process		2026-10-02
react-final-form		2026-10-02
dom-helpers		2026-10-02
fbjs		2026-10-02
object-assign		2026-10-02
prop-types		2026-10-02
react-transition-group		2026-10-02
unfetch		2026-10-02
warning		2026-10-02
hoist-non-react-statics		2026-10-02
invariant		2026-10-02
symbol-observable		2026-10-02
create-react-context		2026-10-02
deep-equal		2026-10-02
history		2026-10-02
intl-format-cache		2026-10-02
memoize-one		2026-10-02
shallowequal		2026-10-02
stylis		2026-10-02
ev-emitter		2026-10-02
get-size		2026-10-02
desandro-matches-selector		2026-10-02
fizzy-ui-utils		2026-10-02
decode-uri-component		2026-10-02
query-string		2026-10-02
strict-uri-encode		2026-10-02
debounce		2026-10-02
performance-now		2026-10-02
raf		2026-10-02
@emotion/unitless		2026-10-02
recompose		2026-10-02
deepmerge		2026-10-02
react-lifecycles-compat		2026-10-02
stylis-rule-sheet		2026-10-02
outlayer		2026-10-02
exenv		2026-10-02
@emotion/is-prop-valid		2026-10-02
create-react-class		2026-10-02
react-ga		2026-10-02
react-helmet		2026-10-02
react-side-effect		2026-10-02
to-camel-case		2026-10-02
to-no-case		2026-10-02
to-space-case		2026-10-02
react-intl		2026-10-02
raven-js		2026-10-02
intl-messageformat		2026-10-02
uc.micro		2026-10-02
linkify-it		2026-10-02
copy-to-clipboard		2026-10-02
toggle-selection		2026-10-02
scroll-to-element		2026-10-02
isomorphic-unfetch		2026-10-02
batch-processor		2026-10-02
element-resize-detector		2026-10-02
slugify		2026-10-02
intl-messageformat-parser		2026-10-02
intl-relativeformat		2026-10-02
react-masonry-component		2026-10-02
change-emitter		2026-10-02
@react-google-maps/api		2026-10-02
deep-object-diff		2026-10-02
html-truncate		2026-10-02
paging-algorithm		2026-10-02
react-active-html		2026-10-02
react-linkify		2026-10-02
react-paginating		2026-10-02
react-schemaorg		2026-10-02
react-tippy		2026-10-02
tlds		2026-10-02
tt-react-calendar		2026-10-02
unstated		2026-10-02

Tracking, tag and verification IDs

No analytics property, tag manager container, pixel or site-verification token was found in the stored source.

Third-party hosts

Hosts outside mymaastricht.nl 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
apps.apple.com	connect	view source
connect.facebook.net	connect	view source
developers.google.com	connect	view source
expatcentremaastrichtregion.nl	connect	view source
fonts.googleapis.com	connect	view source
google.com	connect	view source
international.zuyd.nl	connect	view source
maastrichtuniversity.nl	connect	view source
maps.googleapis.com	connect	view source
play.google.com	connect	view source
reactjs.org	connect	view source
schema.org	connect	view source
uni-life.nl	connect	view source
wa.me	connect	view source
www.facebook.com	connect	view source
www.gemeentemaastricht.nl	connect	view source
www.google-analytics.com	connect	view source
www.google.com	connect	view source
www.googletagmanager.com	connect	view source
www.instagram.com	connect	view source
www.maastrichtuniversity.nl	connect	view source
www.tiktok.com	connect	view source
www.w3.org	connect	view source
www.youtube.com	iframe connect	view source
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 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://connect.facebook.net/en_US/fbevents.js	js library	not fetched	2026-10-02	current
https://www.google-analytics.com/analytics.js	js library	not fetched	2026-10-02	current
https://www.google-analytics.com/analytics_debug.js	js library	not fetched	2026-10-02	current
https://mymaastricht.nl/static/vendors~client.js	js	812 KB	2026-10-02	current
https://mymaastricht.nl/static/client.960c06018708892ac1aa.js	js	349.5 KB	2026-10-02	current
https://mymaastricht.nl/health/	html	179.2 KB	2026-10-02	2026-10-02
https://mymaastricht.nl/finances/	html	179 KB	2026-10-02	2026-10-02
https://mymaastricht.nl/finances/basics/dutch-bank-account/	html	210.3 KB	2026-10-02	2026-10-02
https://mymaastricht.nl/blog/	html	160.8 KB	2026-10-02	2026-10-02
https://mymaastricht.nl/	html	296.7 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, 2.1 MB; 91 libraries, 0 identifiers, 25 third-party hosts
91 libraries added
- @babel/runtime
- @emotion/is-prop-valid
- @emotion/unitless
- @react-google-maps/api
- batch-processor
- change-emitter
- classnames
- copy-to-clipboard
- create-react-class
- create-react-context
- debounce
- decode-uri-component
- and 79 more
26 third-party hosts added
- www.youtube.com
- schema.org
- google.com
- www.maastrichtuniversity.nl
- youtube.com
- www.googletagmanager.com
- connect.facebook.net
- www.facebook.com
- wa.me
- uni-life.nl
- apps.apple.com
- play.google.com
- and 14 more
10 files added

Questions about mymaastricht.nl

How does PageSourceSearch know what mymaastricht.nl 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 mymaastricht.nl 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 mymaastricht.nl?: 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 mymaastricht.nl?: 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.