What powers chalearn.org?
Last seen Dec 2025 · 21 technologies across 12 categories
Analytics
Google Analytics
since Dec 2022
Snowplow Analytics
since Dec 2022
CDN
Google Hosted Libraries
since Dec 2022
CMS
Google Sites
since Aug 2022
Weebly
since Dec 2022
Databases
MySQL
since Dec 2022
Font scripts
Google Font API
since Aug 2022
JavaScript frameworks
JavaScript libraries
Miscellaneous
Babel
since Dec 2022
Open Graph
since Sep 2022
Programming languages
PHP
since Dec 2022
Video players
Web servers
Apache HTTP Server
since Dec 2022
Webmail
Google Workspace
since Aug 2022
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
4.75 / 10 · ranked #275,350 of all domains
88 referring domains · OpenPageRank
Organisation
- ChaLearn
- Founded: 2011
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on Weebly (Square) (199.34.228.100)
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 79,077, 14 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.chalearn.org | 18 |
| gesture.chalearn.org | 7 |
| guyon.chalearn.org | 6 |
| metalearning.chalearn.org | 4 |