What powers stephan-kaelin.ch?
Last seen Sep 2026 · 12 technologies across 10 categories
Analytics
Matomo Analytics
since Nov 2022
CMS
WordPress
since Nov 2022
Databases
MySQL
since Nov 2022
Font scripts
Twitter Emoji (Twemoji)
since Dec 2025
JavaScript libraries
Lightbox
since Jun 2025
Miscellaneous
HTTP/3
since Nov 2022
Open Graph
since Nov 2022
Page builders
WordPress Block Editor
since Feb 2025
Performance
Priority Hints
since Jan 2024
Programming languages
PHP
since Nov 2022
WordPress plugins
Formidable Form
since Feb 2025
Stackable
since Jan 2024
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
2.55 / 10 · ranked #2,399,797 of all domains
3 referring domains · OpenPageRank
Infrastructure
- Hosted on CYON (149.126.4.81, IPv6)
- DNS: cyon.ch
- Email: stephan-kaelin.ch
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 301,410
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Formidable Form Jul 2026
- detected HTTP/3 Jul 2026
- detected Lightbox Jul 2026
- detected Matomo Analytics Jul 2026
- detected MySQL Jul 2026
- detected Open Graph Jul 2026
- detected PHP Jul 2026
- detected Priority Hints Jul 2026
- detected Stackable Jul 2026
- detected Twitter Emoji (Twemoji) Jul 2026
- detected WordPress Jul 2026
- detected WordPress Block Editor Jul 2026
- dropped jQuery Jun 2026
- dropped jQuery Migrate Jun 2026
- dropped RSS Jun 2026
- dropped WP-Optimize Mar 2026
- detected Twitter Emoji (Twemoji) Dec 2025