What powers zendas.de?
Last seen Aug 2026 · 4 technologies across 4 categories
Operating systems
Debian
since Feb 2019
Security
HSTS
since Sep 2022
Video players
VideoJS
since Apr 2022
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
- Sep 2026 * removed from robots.txt
- Sep 2026 gptbot removed from robots.txt
- Sep 2026 robots.txt removed
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.89 / 10 · ranked #257,636 of all domains
61 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.3 s |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 0.4 MB · 16 requests
- WordPress theme: zett · all themes
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on BELWUE BelWue-Koordination (141.58.191.241, IPv6)
- DNS: uni-stuttgart.de
- Email: uni-stuttgart.de
- Email security: SPF, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 613,490, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted