What powers 
universal-blue.org?
Last seen Oct 2026 · 17 technologies across 11 categories
Analytics
Cloudflare Browser Insights
since Feb 2025
Caching
Varnish
since Aug 2023
CDN
Font scripts
JavaScript graphics
Chart.js
since Apr 2024
JavaScript libraries
Miscellaneous
HTTP/3
since Apr 2024
Open Graph
since Aug 2023
PaaS
GitHub Pages
since Aug 2023
Performance
Priority Hints
since Apr 2024
UI frameworks
Video players
YouTube
since Aug 2023
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 63% desktop
- 37% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.73 / 10 · ranked #290,263 of all domains
116 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English
- CDN: Cloudflare, Fastly
- Weight: 2.3 MB · 93 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Jun 2023 (3 years) via 1API GmbH, renews Jun 2027
- Hosted on Cloudflare (104.21.61.111, IPv6)
- DNS: Cloudflare DNS
- Email: Cloudflare Email Routing
- Email security: SPF (soft fail), DMARC monitor only, CAA
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 547,092, 3 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted