What powers recsyschallenge.com?
Last seen Sep 2026 · 9 technologies across 8 categories
Analytics
Caching
Varnish
since May 2019
CDN
Fastly
since May 2019
JavaScript libraries
Miscellaneous
PWA
since Oct 2022
PaaS
GitHub Pages
since May 2019
UI frameworks
Webmail
Google Workspace
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
AI Crawlers
No robots.txt, all AI crawlers allowed
Open Page Rank
3.23 / 10 · ranked #1,216,480 of all domains
34 referring domains · OpenPageRank
Page
- Language: English
- CDN: Fastly
- Weight: 0.3 MB · 18 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on LOOPIA (194.9.94.85)
- DNS: Loopia
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 1,218,242, 9 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted