What powers siebengebirgsmuseum.de?
Last seen Aug 2026 · 9 technologies across 8 categories
CMS
Joomla
since Jan 2021
Hosting
IONOS
since Aug 2022
JavaScript frameworks
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Programming languages
PHP
since Jan 2021
Video players
Web servers
Apache HTTP Server
since Jan 2021
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Aug 2026 *: Allowed (was Restricted)
AI Crawlers
No AI crawlers blocked
Audience
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.07 / 10 · ranked #523,966 of all domains
76 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 1.3 MB · 35 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Siebengebirgsmuseum der Stadt Königswinter
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on IONOS (217.160.0.112, IPv6)
- DNS: IONOS
- Email: IONOS
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Sectigo, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 1,280,746, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted