What powers richtarik.org?
Last seen Oct 2026 · 4 technologies across 4 categories
Caching
Varnish
since Sep 2020
CDN
Fastly
since Sep 2020
Miscellaneous
Open Graph
since Sep 2026
PaaS
GitHub Pages
since Sep 2020
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
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
2.79 / 10 · ranked #1,995,610 of all domains
18 referring domains · OpenPageRank
Page
- Language: English
- CDN: Fastly
- Weight: 1.0 MB · 14 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153)
- DNS: Namecheap
- Email: Namecheap
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 59,080, 2 hosts
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 Google Analytics Oct 2026
- detected Open Graph Sep 2026