You can use Mastodon to add comments to your static blog engine.
and unlike isso or commento it's written in PHP, which is known for having massive security issues (look at number of CVEs). you use a static page because you don't want PHP on the server! else you could just use Wordpress which has comments
all this is not really a solution
This is a brand new server run by the main developers of the project as a spin-off of mastodon.social It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!