What powers typespec.io?
Last seen Aug 2026 · 8 technologies across 7 categories
Analytics
Azure Monitor
since Mar 2024
Caching
Varnish
since Feb 2024
CDN
Fastly
since Feb 2024
JavaScript libraries
Preact
since Nov 2024
PaaS
Azure
since Feb 2024
GitHub Pages
since Feb 2024
Security
HSTS
since Jan 2025
Static site generator
Astro
since Nov 2024
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
United States
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.76 / 10 · ranked #270,286 of all domains
69 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153)
- DNS: Azure DNS
- Email: no MX record returned
- Email security: DMARC reject, CAA
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 518,616
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted