What powers 
holtzbrinck-schule.de?
Last seen Aug 2026 · 14 technologies across 10 categories
Caching
WP Rocket
since Apr 2026
CMS
WordPress
since Dec 2024
Databases
MySQL
since Dec 2024
Miscellaneous
Open Graph
since Dec 2024
RSS
since Dec 2024
PaaS
Performance
Priority Hints
since Dec 2024
Programming languages
PHP
since Dec 2024
Security
HSTS
since Dec 2024
Web servers
Nginx
since Dec 2024
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Open Page Rank
3.77 / 10 · ranked #727,346 of all domains
24 referring domains · OpenPageRank
Infrastructure
- Hosted on Automattic (WordPress.com) (199.16.172.38)
- DNS: Azure DNS
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, expires Feb 2027
- Common Crawl link graph: rank 10,415,439, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped HTTP/3 Jul 2026
- dropped Contact Form 7 May 2026
- dropped Gauges May 2026
- dropped jQuery May 2026
- dropped jQuery Migrate May 2026
- dropped Vue.js May 2026