What powers 
spacereference.org?
Last seen Sep 2026 · 9 technologies across 7 categories
Analytics
CDN
JavaScript frameworks
JavaScript graphics
Miscellaneous
Performance
UI frameworks
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
Audience
- 45% phone
- 28% desktop
- 27% tablet
India
United States
Philippines
Brazil
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.97 / 10 · ranked #249,147 of all domains
190 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- CDN: Cloudflare
- Weight: 1.0 MB · 18 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Registered Dec 2018 (7 years) via Squarespace Domains II LLC, renews Dec 2026
- Hosted on Cloudflare (104.21.13.137, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 466,719, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026, registration from the registry's RDAP service. How the web is hosted
Full technology history →
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Recent changes
- detected Cloudflare Browser Insights Nov 2025