What powers katharinengymnasium.de?
Last seen Sep 2026 · 18 technologies across 12 categories
Advertising
Appointment scheduling
CMS
Cookie compliance
Hosting
Hosting panels
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Video players
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 70% phone
- 30% desktop
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.12 / 10 · ranked #1,387,991 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 2.9 MB · 82 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Katharinen-Gymnasium
- Founded: 1965
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on Hetzner (148.251.188.41)
- DNS: first-ns.de
- Email: 179.2
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 8,002,343, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
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Recent changes
- dropped OWL Carousel Mar 2026
- detected Lightbox Feb 2026
- detected PhotoSwipe Feb 2026