What powers helmholtzschule.de?
Last seen Sep 2026 · 23 technologies across 14 categories
CDN
jsDelivr
since Jan 2025
Font scripts
Font Awesome
since Feb 2019
Google Font API
since Feb 2019
JavaScript frameworks
JavaScript graphics
Chart.js
since Nov 2021
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
PaaS
Azure
since Aug 2022
Programming languages
Security
HSTS
since Oct 2022
UI frameworks
Tailwind CSS
since Apr 2022
Vuetify
since Jan 2025
Video players
VideoJS
since Apr 2022
Web servers
Webmail
Apple iCloud Mail
since May 2023
Microsoft 365
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.34 / 10 · ranked #2,801,470 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 325 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 2.7 MB · 50 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Hermann-von-Helmholtz-Gymnasium
- Founded: 1878
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on netcup (152.53.231.180, IPv6)
- DNS: netcup.net
- Email: netcup-mail.de
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 10,387,492, 3 hosts
DNS records as swept Sep 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| helmholtzschule.de | 13 |
| www.helmholtzschule.de | 12 |
| hm.helmholtzschule.de | 10 |
| portal.helmholtzschule.de | 5 |
Full technology history →
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Recent changes
- dropped Animate.css Jun 2026
- dropped Bootstrap Jun 2026
- dropped Google Analytics Jun 2026
- dropped jQuery Jun 2026
- dropped Modernizr Jun 2026
- dropped Moment.js Jun 2026
- dropped Moodle Jun 2026
- dropped OWL Carousel Jun 2026
- dropped Underscore.js Jun 2026