There isn't a cert.. https://www.ssllabs.com/ssltest/analyze.html?d=coding2learn....

archive.today suggests, there's never been (The only https returns 403 in 2015, the 2013 links are http) https://archive.is/https://coding2learn.org/

The domain has been mentioned on HN before (without TLS), this account seems to be just messing up the links (replace https with http to see the page)