What powers isr-school.de?
Last seen Jun 2026 · 33 technologies across 18 categories
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since May 2022
CMS
Databases
MySQL
since Oct 2020
MailChimp
since Feb 2025
Font scripts
Google Font API
since Oct 2020
Twitter Emoji (Twemoji)
since Oct 2020
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Dec 2022
RSS
since Dec 2022
Performance
NitroPack
since Oct 2025
Priority Hints
since Sep 2023
Programming languages
PHP
since Jan 2019
Security
Tag managers
Google Tag Manager
since Oct 2020
Video players
Web servers
Nginx
since Nov 2020
Webmail
Microsoft 365
since Aug 2022
Widgets
WordPress plugins
The Events Calendar
since Jun 2022
Audience
- 57% phone
- 43% desktop
Germany
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.34 / 10 · ranked #1,076,191 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 100 ms |
| CLS | 0.1 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- Weight: 3.5 MB · 89 requests
- WordPress theme: uncode (child: uncode-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Yoast SEO Jun 2026
- dropped Yoast SEO May 2026
- dropped Akamai Mar 2026
- dropped Akamai Bot Manager Mar 2026
- dropped Dojo Mar 2026
- detected LazySizes Feb 2026
- detected NitroPack Feb 2026
- dropped LazySizes Jan 2026
- dropped NitroPack Jan 2026
- detected Twitter Emoji (Twemoji) Jan 2026
- detected Lenis Dec 2025
- detected Yoast SEO Dec 2025
- dropped Autoptimize Nov 2025
- dropped cdnjs Nov 2025
- dropped Varnish Nov 2025
- dropped WP Rocket Nov 2025
- detected Cloudflare Bot Management Oct 2025
- detected LazySizes Oct 2025
- detected NitroPack Oct 2025
- dropped Yoast SEO Oct 2025
- detected Autoptimize Sep 2025