What powers 
gzh.de?
Last seen Sep 2026 · 8 technologies across 6 categories
Font scripts
Bootstrap Icons
since Apr 2025
JavaScript frameworks
JavaScript libraries
UI frameworks
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
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
3.53 / 10 · ranked #864,472 of all domains
58 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 6.1 MB · 30 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Graf-Zeppelin-Haus
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on TELEDATA-AS TeleData GmbH (212.62.195.145)
- DNS: td-fn.net
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: DigiCert, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 11,090,885, 4 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| tour360.gzh.de | 8 |
| gzh.de | 3 |
| www.gzh.de | 3 |