What powers 
dertank.ch?
Last seen Sep 2026 · 14 technologies across 11 categories
CMS
WordPress
since May 2021
Databases
MySQL
since May 2021
Font scripts
Google Font API
since May 2021
Twitter Emoji (Twemoji)
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Oct 2022
RSS
since Dec 2022
Performance
Priority Hints
since Sep 2026
Programming languages
PHP
since May 2021
Security
HSTS
since Nov 2025
SEO
Web servers
Apache HTTP Server
since May 2021
WordPress plugins
WP-Optimize
since Nov 2025
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
Open Page Rank
3.96 / 10 · ranked #600,500 of all domains
29 referring domains · OpenPageRank
Page
- Language: English (United States)
- Weight: 0.3 MB · 17 requests
- WordPress theme: x (child: x-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SWITCH Switch, Swiss Academic and Research Network (147.86.1.18)
- DNS: ClouDNS
- Email: Migadu
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 889,720, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped anime.js Dec 2025
- dropped core-js Dec 2025
- dropped Google Hosted Libraries Dec 2025
- dropped GSAP Dec 2025
- dropped jQuery UI Dec 2025
- dropped Matomo Analytics Dec 2025
- dropped Slider Revolution Dec 2025
- dropped Twitter Emoji (Twemoji) Dec 2025
- dropped Ubuntu Dec 2025
- dropped W3 Total Cache Dec 2025
- dropped WordPress Multisite Dec 2025
- dropped WPML Dec 2025
- detected HSTS Nov 2025
- detected WP-Optimize Nov 2025