What powers grettstadt.de?
Last seen Oct 2026 · 20 technologies across 13 categories
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Operating systems
Performance
Programming languages
Security
Video players
Web server extensions
Web servers
WordPress plugins
AI Crawlers
Blocks 3 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Bytespider Blocked
- GPTBot Blocked
- meta-externalagent Blocked
- ClaudeBot Allowed
The other 29 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
3 of 33 AI crawlers blocked
Standards: llms.txt
Audience
- 100% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.11 / 10 · ranked #3,310,794 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 275 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 2.6 MB · 77 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Grettstadt
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on Hetzner (144.76.55.199, IPv6)
- DNS: uplink.de
- Email: uplink.de
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 1,344,060, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.ffw.grettstadt.de | 14 |
| www.grettstadt.de | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected AOS May 2026
- detected Browser-Update.org May 2026
- dropped AOS Apr 2026
- dropped Browser-Update.org Apr 2026
- dropped Modernizr Apr 2026
- dropped Twitter Emoji (Twemoji) Dec 2025