What powers 
josefsson.org?
Last seen Feb 2026 · 12 technologies across 10 categories
CMS
Databases
MySQL
since Feb 2023
JavaScript libraries
Miscellaneous
RSS
since Feb 2023
Operating systems
Debian
since Dec 2022
Performance
Priority Hints
since Dec 2023
Programming languages
PHP
since Feb 2023
Security
HSTS
since Dec 2022
Web servers
WordPress themes
Catch Themes Catch Box
since Feb 2023
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
5.93 / 10 · ranked #114,513 of all domains
170 referring domains · OpenPageRank
Infrastructure
- Hosted on BAHNHOF (178.174.241.102, IPv6)
- DNS: josefsson.org
- Email: sjd.se
- Email security: SPF (hard fail), DMARC quarantine, CAA, MTA-STS
- SSL: Let's Encrypt, RSA 4096, expires Oct 2026
- Common Crawl link graph: rank 46,103, 7 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| blog.josefsson.org | 11 |
| josefsson.org | 4 |