What powers usduc.io?
Last seen Oct 2026 · 7 technologies across 5 categories
Analytics
Cloudflare Browser Insights
since Jan 2026
Caching
Varnish
since Jan 2026
CDN
Cloudflare
since Jan 2026
Fastly
since Jan 2026
Miscellaneous
HTTP/3
since Jan 2026
Open Graph
since Jan 2026
PaaS
GitHub Pages
since Jan 2026
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
- Oct 2026 bytespider removed from robots.txt
- Oct 2026 amazonbot removed from robots.txt
- Oct 2026 applebot-extended removed from robots.txt
- Oct 2026 meta-externalagent removed from robots.txt
- Oct 2026 ccbot removed from robots.txt
- Oct 2026 claudebot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Open Page Rank
1.86 / 10 · ranked #4,029,069 of all domains
12 referring domains · OpenPageRank
Page
- Language: English
- CDN: Cloudflare, Fastly
- Weight: 0.6 MB · 5 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.59.119, IPv6)
- DNS: Cloudflare DNS
- Email: Namecheap Private Email
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 8,055,521, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted