What powers pysdr.org?
Last seen Jun 2026 · 12 technologies across 8 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
Google Analytics
since Mar 2022
Caching
Varnish
since Dec 2020
CDN
Cloudflare
since Dec 2020
Fastly
since Dec 2020
Documentation
Sphinx
since Dec 2020
JavaScript libraries
Underscore.js
since Dec 2020
Miscellaneous
PaaS
GitHub Pages
since Dec 2020
Widgets
Patreon
since Dec 2023
Audience
- 80% desktop
- 20% phone
United States
India
United Kingdom
Ukraine
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.13 / 10 · ranked #1,377,321 of all domains
41 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Cloudflare, Fastly
- Weight: 0.4 MB · 55 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Cloudflare Browser Insights Nov 2025