Didn't realize certificates are really free (according that that site), I've been paying GoDaddy $94.99 for a Standard SSL Renewal yearly.
https://news.ycombinator.com/from?site=https.dev
its last snapshot:
https://web.archive.org/web/20210126194059/https://docs.http...
source: https://github.com/https-dev/docs/blob/master/list-of-acme-s...