What powers 
katwijksmuseum.nl?
Last seen Oct 2026 · 33 technologies across 20 categories
Advertising
Analytics
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Operating systems
Programming languages
Rich text editors
SEO
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 79% phone
- 14% desktop
- 7% tablet
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.33 / 10 · ranked #430,321 of all domains
74 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch (Netherlands)
- Weight: 1.4 MB · 58 requests
- WordPress theme: katwijks-museum · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Katwijks Museum
- Country: Netherlands
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on PREVIDER-AS (141.138.168.111, IPv6)
- DNS: g1-dns.com
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 2,856,464, 3 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.katwijksmuseum.nl | 23 |
| collectie.katwijksmuseum.nl | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Facebook Pixel Jun 2026
- detected Google Analytics Jun 2026
- detected Google Tag Manager Jun 2026
- detected Microsoft Advertising Jun 2026
- detected Site Kit Jun 2026
- dropped Cookiebot Dec 2025
- dropped Google Analytics Dec 2025
- dropped Google Tag Manager Dec 2025
- dropped Microsoft Advertising Dec 2025
- dropped Site Kit Dec 2025