What powers 
horst-janssen-museum.de?
Last seen Sep 2026 · 12 technologies across 7 categories
CMS
Cookie compliance
JavaScript libraries
Miscellaneous
Programming languages
UI frameworks
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 88% phone
- 12% desktop
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.53 / 10 · ranked #397,497 of all domains
99 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German (Germany)
- Weight: 4.8 MB · 45 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Horst Janssen Museum
- Founded: 2000
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on FCIO (185.105.252.115, IPv6)
- DNS: ewetel.de
- Email: stadt-oldenburg.de
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 681,494, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Varnish Aug 2026
- dropped Matomo Analytics Feb 2026
- detected core-js Jan 2026
- detected Klaro Jan 2026
- detected Preact Jan 2026