What powers ckalender.de?
Last seen Jun 2026 · 5 technologies across 4 categories
JavaScript libraries
Programming languages
PHP
since Sep 2021
Security
HSTS
since May 2025
UI frameworks
Semantic UI
since Feb 2022
Audience
- 62% phone
- 38% desktop
Germany
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.65 / 10 · ranked #787,236 of all domains
39 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: German
- Weight: 2.7 MB · 30 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| v2.ckalender.de | 5 |
| www.ckalender.de | 5 |
Full technology history →
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Recent changes
- dropped Apache HTTP Server Jan 2026
- dropped GoDaddy Jan 2026
- dropped Google Analytics Jan 2026