What powers doufen.org?
Last seen Sep 2026 · 14 technologies across 9 categories
Analytics
Cloudflare Browser Insights
since Jan 2026
Caching
Varnish
since Nov 2022
CDN
Cloudflare
since Nov 2022
Fastly
since Nov 2022
JavaScript graphics
JavaScript libraries
Miscellaneous
PaaS
GitHub Pages
since Nov 2022
Static site generator
UI frameworks
Animate.css
since Nov 2022
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
2.95 / 10 · ranked #1,669,560 of all domains
12 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.21.19.24, IPv6)
- DNS: Cloudflare DNS
- Email: Cloudflare Email Routing
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 1,897,644, 4 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Choices Jan 2026