What powers subject.space?
Last seen Aug 2026 · 10 technologies across 7 categories
Analytics
Cloudflare Browser Insights
since Jan 2026
Plausible
since May 2023
CDN
Cloudflare
since May 2023
Unpkg
since May 2023
Miscellaneous
HTTP/3
since May 2023
Open Graph
since May 2023
Operating systems
Ubuntu
since May 2023
PaaS
GitHub Pages
since May 2023
Static site generator
Web servers
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
2.44 / 10 · ranked #2,597,291 of all domains
12 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.21.18.106, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 1,920,835, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| subject.space | 8 |
| observatory.subject.space | 4 |