What powers otree.org?

Last seen Jun 2026 · 7 technologies across 6 categories

Analytics

Google Analytics
since Jun 2026

Caching

Varnish
since Oct 2022

CDN

Fastly
since Oct 2022

Font scripts

Google Font API
since Jun 2026

Miscellaneous

Open Graph
since Oct 2022
Prism
since Oct 2022

PaaS

GitHub Pages
since Oct 2022

AI Crawlers

No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.

  • robots.txt not found
  • llms.txt not found
  • ai.txt not found

See who blocks each AI crawler across the web

AI Crawlers

No robots.txt, all AI crawlers allowed

Full breakdown

Open Page Rank

3.79 / 10 · ranked #718,511 of all domains

40 referring domains · OpenPageRank

Page

  • Language: English
  • CDN: Fastly
  • Weight: 0.6 MB · 20 requests
  • Structured data: OpenGraph

Homepage as crawled by the HTTP Archive, Sep 2026.

Infrastructure

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

Full technology history →
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