Static site don't have comments and analytics.
https://github.com/posativ/isso
or this:
https://blog.webkid.io/moving-from-disqus-to-schnack/
You could also install Discourse on a subdomain (quick docker-based install on a $5/month server) and use that for comments.
*if your site is spammed hard enough, javascript may become necessary, but you can try honeypot fields first in pure HTML.