What powers counterexamples.org?
Last seen Jul 2026 · 9 technologies across 6 categories
Caching
Varnish
since Jul 2021
CDN
Font scripts
Font Awesome
since Jul 2021
JavaScript graphics
KaTeX
since Jul 2021
JavaScript libraries
Clipboard.js
since Jul 2021
Highlight.js
since Jul 2021
PaaS
GitHub Pages
since Jul 2021
OVHcloud
since Sep 2022
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
2.52 / 10 · ranked #2,455,859 of all domains
18 referring domains · OpenPageRank
Page
- Language: English
- CDN: Fastly
- Weight: 0.3 MB · 22 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153)
- DNS: OVHcloud
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 2,056,575
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted