What powers stephan-siefken.de?
Last seen Oct 2026 · 14 technologies across 10 categories
Analytics
CMS
Databases
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Programming languages
Security
WordPress plugins
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 checked
- ai.txt not checked
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
0.28 / 10 · ranked #64,405,973 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 125 ms |
| CLS | 0.1 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 0.3 MB · 15 requests
- WordPress theme: etch-theme · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Stephan Siefken
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Hetzner (49.12.61.53, IPv6)
- DNS: aipi.at
- Email: aipi.de
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 6,378,141
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted