What powers calendarserver.org?
Last seen Jul 2025 · 4 technologies across 4 categories
Caching
Varnish
since Feb 2023
CDN
Fastly
since Feb 2023
PaaS
GitHub Pages
since Feb 2023
UI frameworks
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
5.45 / 10 · ranked #164,650 of all domains
80 referring domains · OpenPageRank
Infrastructure
- Hosted on APPLE-AUSTIN (17.253.23.201)
- DNS: apple.com
- Email: apple.com
- Email security: SPF (hard fail), DMARC reject
- SSL: Apple, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 64,957, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted