What powers gridcal.com?
Last seen Aug 2026 · 14 technologies across 10 categories
Analytics
Plausible
since Oct 2025
CMS
Databases
PostgreSQL
since Oct 2025
Font scripts
Google Font API
since Oct 2025
Hosting
Hetzner
since Oct 2025
JavaScript libraries
Miscellaneous
Programming languages
Security
HSTS
since Oct 2025
Video players
YouTube
since Oct 2025
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
0.97 / 10 · ranked #13,178,874 of all domains
6 referring domains · OpenPageRank
Infrastructure
- Hosted on Hetzner (88.99.136.6, IPv6)
- DNS: Hetzner
- Email: Hornetsecurity
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 36,551,794, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted