What powers katharineum.de?
Last seen Jun 2026 · 43 technologies across 20 categories
Analytics
Matomo Analytics
since Oct 2024
CMS
Databases
MySQL
since Jun 2020
Font scripts
Font Awesome
since Jun 2020
Issue trackers
Sentry
since Dec 2021
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Isotope
since Jan 2025
LazySizes
since Jan 2025
Lightbox
since Sep 2021
OWL Carousel
since Jun 2020
Select2
since Oct 2022
Underscore.js
since Jun 2020
Miscellaneous
Operating systems
Debian
since Mar 2020
Performance
Priority Hints
since Sep 2023
Photo galleries
PhotoSwipe
since Oct 2024
Programming languages
Security
HSTS
since Sep 2022
UI frameworks
Video players
Web frameworks
Django
since Mar 2020
Web servers
Nginx
since Jun 2020
Webmail
RoundCube
since Jul 2021
WordPress plugins
Contact Form 7
since Feb 2022
wpBakery
since Jul 2021
Audience
- 94% phone
- 6% desktop
Germany
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.07 / 10 · ranked #1,471,478 of all domains
28 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: German
- Weight: 11.8 MB · 166 requests
- WordPress theme: school-time · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| katharineum.de | 21 |
| nimbus.katharineum.de | 17 |
| forum.katharineum.de | 12 |
| info.katharineum.de | 9 |
| webmail.katharineum.de | 7 |
Full technology history →
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Recent changes
- dropped The Events Calendar Jan 2026
- dropped Swiper Oct 2025