What powers 
sdrpp.org?
Last seen Aug 2026 · 4 technologies across 4 categories
Caching
Varnish
since Dec 2021
CDN
Fastly
since Dec 2021
PaaS
GitHub Pages
since Dec 2021
UI frameworks
Bootstrap
since Dec 2021
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
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 74% desktop
- 21% phone
- 5% tablet
United States
India
Italy
Germany
Japan
Canada
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.68 / 10 · ranked #773,070 of all domains
62 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 3.3 MB · 14 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153, IPv6)
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 2,117,612, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted