Site profile
isbn.nl
Built with jquery 3.6.0, gtm, gtag, zendesk, is-in-viewport 3.0.4, json-db-admin 0.0.1. 5 pages and 11 stored files.
rank 459,536 6 libraries 2 identifiers 0 third-party hosts 0 crawls 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 |
|---|---|---|
| jquery | 3.6.0 | 2026-09-24 |
| gtm | 2026-09-24 | |
| gtag | 2026-09-24 | |
| zendesk | 2026-09-24 | |
| is-in-viewport | 3.0.4 | 2026-09-24 |
| json-db-admin | 0.0.1 | 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 Analytics 4 measurement id (Google) | G-EJNJ9L2DB1 | view source |
| Google Tag Manager container (Google) | GTM-5ZJF5TJ | view source |
Third-party hosts
The stored pages and scripts reference no host outside isbn.nl.
Stored pages and scripts
The newest stored version of each file, newest first@if (p.FilesTruncated) {
| File | Kind | Size | Collected | Versions |
|---|---|---|---|---|
| https://code.jquery.com/jquery-3.6.0.min.js | js library | not fetched | 2026-09-24 | current |
| https://service.isbn.nl/hc/theming_assets/107203…?digest=35814035876369 | js | 17.6 KB | 2026-09-24 | current |
| https://static.zdassets.com/hc/assets/hc_enduser…12cef3ec2145099fbc203eebc121.js | js library | not fetched | 2026-09-24 | current |
| https://static.zdassets.com/hc/assets/nl.444a7c12a103558dc6f3.js | js library | not fetched | 2026-09-24 | current |
| https://www.googletagmanager.com/gtag/js?id=G-EJNJ9L2DB1 | js library | not fetched | 2026-09-24 | current |
| https://isbn.nl/js/bundle.js | js | 101.3 KB | 2026-09-24 | current |
| https://isbn.nl/algemene-voorwaarden | html | 7.9 KB | 2026-09-24 | current |
| https://isbn.nl/over-isbn | html | 7.8 KB | 2026-09-24 | current |
| https://isbn.nl/contact | html | 5.4 KB | 2026-09-24 | current |
| https://service.isbn.nl/hc/nl/articles/12023855389713-Alles-over-Metadata | html | 26.4 KB | 2026-09-24 | current |
| https://isbn.nl/ | html | 9.9 KB | 2026-09-24 | current |
Timeline
No crawl has recorded a snapshot of this site yet; snapshots are written by every crawl from now on.
Questions about isbn.nl
- How does PageSourceSearch know what isbn.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 isbn.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 isbn.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 isbn.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.