What powers 
csaf.io?
Last seen Aug 2026 · 5 technologies across 5 categories
Caching
Varnish
since Apr 2025
CDN
Fastly
since Apr 2025
Mailgun
since May 2025
PaaS
GitHub Pages
since Apr 2025
Static site generator
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
3.91 / 10 · ranked #638,921 of all domains
32 referring domains · OpenPageRank
Infrastructure
- Hosted on Fastly (185.199.108.153, IPv6)
- DNS: Google Cloud DNS
- Email: Mailgun
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 183,768, 5 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Bootstrap Oct 2025
- dropped Google Font API Oct 2025
- dropped Open Graph Oct 2025
- dropped Vimeo Oct 2025
- dropped YouTube Oct 2025