What powers fsrfb4.de?
Last seen Oct 2026 · 17 technologies across 10 categories
CMS
Databases
MySQL
since Nov 2021
Documentation
Font scripts
Font Awesome
since Nov 2021
Google Font API
since Nov 2021
JavaScript libraries
Miscellaneous
RSS
since Sep 2023
Programming languages
Security
HSTS
since Oct 2022
Web servers
Nginx
since Nov 2021
WordPress themes
OnePage Express
since Oct 2022
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.33 / 10 · ranked #8,249,946 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 0.6 MB · 20 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Hetzner (116.203.63.114, IPv6)
- DNS: inwx.de
- Email: fsrfb4.de
- Email security: SPF (hard fail), DMARC reject, CAA
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 10,746,174, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.fsrfb4.de | 14 |
| fsrfb4.de | 5 |