How does PageSourceSearch know what 538.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 538.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 538.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 538.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

538.nl

Built with @clerk/ui 1.34.0, @findify/bundle 7.1.108, @blotoutio/providers-blotout-consent-sdk 1.73.0, @feathery/react 2.96.0, onetrust, @cognigy/webchat 3.50.0, tableexport.jquery.plugin 1.33.0, twitter-widgets, react-is, @adalong/widget 7.15.1, @scalar/api-reference 1.72.1, @aurolabs/auro-back-to-top 1.1.0 and more. 5 pages and 107 stored files, last crawled 2026-10-02.

rank 411,146 20 libraries 1 identifier 61 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
@clerk/ui	1.34.0	2026-10-02
@findify/bundle	7.1.108	2026-10-02
@blotoutio/providers-blotout-consent-sdk	1.73.0	2026-10-02
@feathery/react	2.96.0	2026-10-02
onetrust		2026-10-02
@cognigy/webchat	3.50.0	2026-10-02
tableexport.jquery.plugin	1.33.0	2026-10-02
twitter-widgets		2026-10-02
react-is		2026-10-02
@adalong/widget	7.15.1	2026-10-02
@scalar/api-reference	1.72.1	2026-10-02
@aurolabs/auro-back-to-top	1.1.0	2026-10-02
@oiz/stzh-components	4.16.0	2026-10-02
graphql-playground-react	1.7.28	2026-10-02
guidechimp	5.0.5	2026-10-02
@flarehr/benefits-app	0.0.2	2026-10-02
comindware.core.ui	2.1.149	2026-10-02
@chativa/connector-directline	0.15.0	2026-10-02
@zonos/elements	1.3.289	2026-09-24
@marimo-team/frontend	0.25.0	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 app id (Meta)	354799163951	view source

Third-party hosts

Hosts outside 538.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
38qc.eu.adj.st	connect	view source
538.mijn.account.talpanetwork.com	connect	view source
7b936.v.fwmrm.net	connect	view source
acties.radio10.nl	connect	view source
acties.skyradio.nl	connect	view source
api.account.talpanetwork.com	connect	view source
api.whatsapp.com	connect	view source
app.adjust.com	connect	view source
assets.prod.webx.talpa.digital	connect	view source
cdn.cookielaw.org	script	view source
connect.facebook.net	connect	view source
contentapi.hartvannederland.nl	connect	view source
contentapi.hetnieuws.nl	connect	view source
contentapi.kijk.nl	connect	view source
contentapi.kijkers.tv	connect	view source
contentapi.nieuwsvandedag.nl	connect	view source
contentapi.radio10.nl	connect	view source
contentapi.radionoordzee.nl	connect	view source
contentapi.shownieuws.nl	connect	view source
contentapi.skyradio.nl	connect	view source
contentapi.talpamedia.nl	connect	view source
contentapi.talpanetwork.com	connect	view source
contentapi.vandaaginside.nl	connect	view source
conviva.testonly.conviva.com	connect	view source
cws.conviva.com	connect	view source
dynamodb.amazonaws.com	connect	view source
embed.kijk.nl	connect	view source
fonts.googleapis.com	connect	view source
images.ctfassets.net	connect	view source
images.talpa.digital	connect	view source
json-schema.org	connect	view source
kijk.mijn.account.talpanetwork.com	connect	view source
mssl.fwmrm.net	connect	view source
mui.com	connect	view source
open.spotify.com	connect	view source
partnerapi.talpanetwork.com	connect	view source
pings.conviva.com	connect	view source
platform.twitter.com	connect	view source
playready-license.vudrm.tech	connect	view source
radio10.eu.go.link	connect	view source
radio10.mijn.account.talpanetwork.com	connect	view source
radio538.eu.go.link	connect	view source
reactjs.org	connect	view source
schema.org	connect	view source
sdk.listenlive.co	connect	view source
skyradio.eu.go.link	connect	view source
skyradio.mijn.account.talpanetwork.com	connect	view source
ssl.p.jwpcdn.com	script	view source
subscription-service.prd.ds.talpa.network	connect	view source
twitter.com	connect	view source
use.typekit.net	connect	view source
widevine-license.vudrm.tech	connect	view source
www.facebook.com	connect	view source
www.gstatic.com	connect	view source
www.instagram.com	connect	view source
www.kijk.nl	connect	view source
www.linkedin.com	connect	view source
www.talpa.com	connect	view source
www.tiktok.com	connect	view source
www.w3.org	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 107) }. 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://cdn.cookielaw.org/scripttemplates/otSDKStub.js	js library	not fetched	2026-10-02	current
https://platform.twitter.com/widgets.js	js library	not fetched	2026-10-02	current
https://www.538.nl/_next/static/chunks/9052.ddb450bfdfe4a1f3.js	js	2.9 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/7978.8b531f44867c37dc.js	js	8.2 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/5442.454c707972f1f1b2.js	js	8.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/7259.4780dd22ea319a58.js	js	309 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/5160.a8e551df8152c08b.js	js	521 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/5133.6bd1880634f5e848.js	js	7.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/5068.e07eca8ab4904a97.js	js	864 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/4906.4732cf1a33566038.js	js	4.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/4905.0a9da3370a8ba111.js	js	3.2 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/4421.a56afa98e8320723.js	js	42.9 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/3909.67de5988236b6033.js	js	55.6 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/3555.3c22079547b61109.js	js	15.1 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/3219.0b44857ab760b69b.js	js	53 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/3158.7827ea6802eee811.js	js	20.4 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/2808.0365aea24235e552.js	js	9.9 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/2186.db2c3703176597cb.js	js	10.2 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/2065.3078616b987dcb12.js	js	4.5 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/1946.3e0db210e5d45e4c.js	js	1.5 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/1761.7b2e4af12cd3e7f0.js	js	1.9 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/1480.4613d592e52dd500.js	js	3.5 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/846.eb2a6107aeea8dae.js	js	3.7 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/587.54d43555f75c0c63.js	js	238 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/559.fae387f801bc6b1d.js	js	56.2 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/495.2e4750c1da6fbebf.js	js	3.1 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/514.b8620b17e6f98787.js	js	468 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/382.6eb0a51408003e03.js	js	9.5 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/137.938873099d6cb2bd.js	js	309 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/1903-b6e3c67b277248c3.js	js	10.5 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/9430-3b1182bb4bf58c53.js	js	9.4 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/1202-8c9b954437a67653.js	js	12.6 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/[...slugs]-affdd48d6560db94.js	js	318 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/zenders/[slug]-13fd146a3f1ae0e6.js	js	7.9 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/vid…/[...slugs]-21ee4e224ebd5918.js	js	7.8 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/video/[guid]-811a47b8c1ea5034.js	js	1.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/upo…/callback-32b651b54fc22b95.js	js	783 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/uit…/[guid]-78c562123c2c7208.js	js	6.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/uit…seriesSlug]-10b6eb9876b12149.js	js	5.9 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/uitzendingen-7ef35b023c97ecaf.js	js	2.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/sit…/[...slug]-121d07971b38dfb0.js	js	547 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/shows/[slug]-7386f020b67880b0.js	js	13.8 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/sit…/news.xml-bdea635319f0f3e4.js	js	589 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/robots.txt-c4509335e27cf3ad.js	js	435 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/programmering-f0ec0c9b5da63c9b.js	js	8.5 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/pro…[...guids]]-a6e01621a5926af3.js	js	17.4 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/pro…/gemist-1a58864d544d5a22.js	js	2.5 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/programmas-2fd6001dd7e4851f.js	js	3.4 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/preview/page-631a1cd98913830b.js	js	9.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/pre…/campaign-aacaab7e7fa5ace6.js	js	7.6 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/pages/preview/article-83279eab8a8e382b.js	js	6.9 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/pages/playlist/[slug]-f0fba082e1c4aaba.js	js	9.4 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/manifest.json-958b13631ca30c47.js	js	430 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/lui…tationSlug]-63816e454e6fa10f.js	js	341 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/luister-a97cb655e55105b9.js	js	399 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/grid-88051cf3f885a56d.js	js	8.2 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/fonts-46758950249cc6a4.js	js	2.2 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/fil…/[guid]-93333bcd79b1cf4d.js	js	4 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/features-44f02b76f6f5289b.js	js	4.5 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/colors-864da84bf54fa40a.js	js	9.9 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/cat…tegorySlug]-41444545f90e31e5.js	js	3.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/auteurs/[slug]-659b671922f7738e.js	js	6.5 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/art…/[...slugs]-5d9a0feb11e07fef.js	js	9.2 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/pages/ads.txt-4097b7cabffc41b5.js	js	414 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/acties/[slug]-b87324e3b77a96a6.js	js	8.1 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/pages/acc…/uitloggen-cb1deece18339548.js	js	1.1 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/acc…/inloggen-6d4591503eb3536c.js	js	878 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/account/error-d7b62b2e1d234df0.js	js	1.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/_error-e6c9339a7dc14c76.js	js	533 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/account-23e8fd44454c4cb4.js	js	8.6 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/404-4f8620acb79ed3ce.js	js	405 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/.we…/brand.json-de409b803d1c12f6.js	js	434 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/.we…agents.json-15a8a7dc932c891b.js	js	439 B	2026-10-02	current
https://www.538.nl/service-worker.js	js	1.3 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/1226.8d4482929561f7dc.js	js	1.8 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/%5B...slugs%5D-affdd48d6560db94.js	js	318 B	2026-10-02	current
https://www.538.nl/_next/static/ZesJep7fkrxG1w9Szz_K2/_ssgManifest.js	js	77 B	2026-10-02	2026-10-02
https://www.538.nl/_next/static/ZesJep7fkrxG1w9Szz_K2/_buildManifest.js	js	5.1 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/pages/index-826cf26a7068d7d8.js	js	381 B	2026-10-02	current
https://www.538.nl/_next/static/chunks/6203-86eb7f3e60c3e54e.js	js	12.7 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/pages/_app-4509b9cc123048b3.js	js	1.2 MB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/main-1454c51c24b38cd6.js	js	109.7 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/framework-fec6019ebfa6a4c8.js	js	137.8 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/webpack-f1868ecf29c2163a.js	js	5.7 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/5289.b469673f483b543b.js	js	2.1 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/473-a900840153f766ac.js	js	8.8 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/8735-ff5cb418f729e9b5.js	js	13.7 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/3299-0025fe0640b5b3a4.js	js	31.8 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/5272.982380efff821495.js	js	4.9 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/5115.671cbce89452528f.js	js	3.7 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/8871.db0edfc84fe7f6a2.js	js	1.7 KB	2026-10-02	current
https://www.538.nl/_next/static/chunks/polyfills-78c92fac7aa8fdd8.js	js	89.2 KB	2026-10-02	current
https://www.538.nl/radio/gemist	html	361.2 KB	2026-10-02	2026-10-02
https://www.538.nl/radio/luisteren	html	252.9 KB	2026-10-02	2026-10-02
https://www.538.nl/acties	html	213.7 KB	2026-10-02	2026-10-02
https://www.538.nl/radio/app	html	209.6 KB	2026-10-02	2026-10-02
https://www.538.nl/	html	323.5 KB	2026-10-02	2026-10-02
https://www.538.nl/_next/static/chunks/1480.e798cc39d9cc57b1.js	js	4 KB	2026-09-24	current
https://www.538.nl/_next/static/chunks/9430-8a7160645a1c6d19.js	js	9.6 KB	2026-09-24	current
https://www.538.nl/_next/static/chunks/pages/pre…/campaign-72cd7a2a66d4c624.js	js	7.6 KB	2026-09-24	current
https://www.538.nl/_next/static/chunks/pages/preview/article-000e2bf21bad78d9.js	js	6.9 KB	2026-09-24	current
https://www.538.nl/_next/static/chunks/pages/art…/[...slugs]-61a2ae1392e9c86e.js	js	9.2 KB	2026-09-24	current
https://www.538.nl/_next/static/chunks/pages/acties/[slug]-383c842a19f43c15.js	js	8.1 KB	2026-09-24	current
https://www.538.nl/_next/static/5cQqmyidMNrYuxNLgItBj/_ssgManifest.js	js	77 B	2026-09-24	current
https://www.538.nl/_next/static/5cQqmyidMNrYuxNLgItBj/_buildManifest.js	js	5.1 KB	2026-09-24	current
https://www.538.nl/_next/static/chunks/pages/_app-cada6238f6de7bfc.js	js	1.2 MB	2026-09-24	current
https://www.538.nl/_next/static/chunks/webpack-352da8f46e1be3a6.js	js	5.7 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, 97 files, 3.5 MB; 18 libraries, 1 identifier, 61 third-party hosts
18 libraries added
- tableexport.jquery.plugin 1.33.0
- comindware.core.ui 2.1.149
- @findify/bundle 7.1.108
- @aurolabs/auro-back-to-top 1.1.0
- @oiz/stzh-components 4.16.0
- @flarehr/benefits-app 0.0.2
- @chativa/connector-directline 0.15.0
- graphql-playground-react 1.7.28
- guidechimp 5.0.5
- @clerk/ui 1.34.0
- @cognigy/webchat 3.50.0
- @feathery/react 2.96.0
- and 6 more
1 identifier added
- 354799163951 Facebook app id
61 third-party hosts added
- cdn.cookielaw.org
- ssl.p.jwpcdn.com
- www.w3.org
- reactjs.org
- fonts.googleapis.com
- use.typekit.net
- conviva.testonly.conviva.com
- cws.conviva.com
- pings.conviva.com
- mui.com
- mssl.fwmrm.net
- 7b936.v.fwmrm.net
- and 49 more
97 files added

Questions about 538.nl

How does PageSourceSearch know what 538.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 538.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 538.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 538.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.