What powers universalviewer.io?
Last seen Aug 2026 · 13 technologies across 9 categories
Analytics
Cloudflare Browser Insights
since Dec 2025
Google Analytics
since Apr 2022
Caching
Varnish
since Apr 2022
CDN
Cloudflare
since Apr 2022
Fastly
since Apr 2022
Font scripts
Font Awesome
since Apr 2022
Google Font API
since Apr 2022
JavaScript libraries
scrollreveal
since Apr 2022
Miscellaneous
HTTP/3
since Sep 2022
PaaS
GitHub Pages
since Apr 2022
Static site generator
UI frameworks
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
- Sep 2026 * removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
4.83 / 10 · ranked #263,385 of all domains
106 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.21.12.139, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 464,251, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped cdnjs May 2026