What powers echallenge.ch?
Last seen Sep 2026 · 17 technologies across 10 categories
Analytics
Font scripts
Google Font API
since Mar 2020
JavaScript frameworks
JavaScript graphics
Chart.js
since Mar 2020
JavaScript libraries
Miscellaneous
Operating systems
Programming languages
Rich text editors
CKEditor
since Mar 2020
Web servers
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Open Page Rank
1.49 / 10 · ranked #6,619,242 of all domains
3 referring domains · OpenPageRank
Infrastructure
- Hosted on Gandi (217.70.184.55)
- DNS: Gandi
- Email: Gandi
- Email security: SPF (neutral), no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 18,425,237
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted