What powers grottenhof.de?
Last seen Sep 2026 · 8 technologies across 6 categories
CMS
Hosting
JavaScript libraries
Miscellaneous
Programming languages
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
- 100% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.81 / 10 · ranked #1,953,180 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 2.8 MB · 20 requests
- Structured data: JSON-LD, Microdata
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Industry: Arts and entertainment (declares
Event)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on IONOS (217.160.0.89, IPv6)
- DNS: IONOS
- Email: IONOS
- Email security: SPF (soft fail), no DMARC record
- SSL: Sectigo, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 12,703,884, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| maxi.grottenhof.de | 8 |
| www.grottenhof.de | 8 |
Full technology history →
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Recent changes
- detected PWA Nov 2025