What powers 
museumholterberg.nl?
Last seen Sep 2026 · 45 technologies across 21 categories
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Operating systems
PaaS
Page builders
Payment processors
Performance
Programming languages
Security
UI frameworks
Video players
Web frameworks
Web servers
Widgets
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 *: Allowed (was Restricted)
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.87 / 10 · ranked #679,892 of all domains
50 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0.4 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Dutch
- CDN: Cloudflare
- Weight: 4.6 MB · 48 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Industry: Arts and entertainment (declares
Museum)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (185.158.133.1)
- Email: transip.email
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Google Trust Services, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 1,060,426, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| museumholterberg.nl | 34 |
| tickets.museumholterberg.nl | 13 |
| www.museumholterberg.nl | 9 |
Full technology history →
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Recent changes
- dropped HTTP/3 Jul 2026