How about Discourse?
I'm a touch biased, as it was created by our co-founder Coding Horror, (without whom I'd probably still be working as a finance exec, grinding orphans into money burgers for the rich to feed their pets,) but it seems to nail most of your criteria:
They offer (paid) hosting if you don't want to do it yourself
It's a ...
An interesting alternative I found is isso.
It can be hosted away from my static pages
It integrates well
It is free as in freedom.
As for the other requirements:
It is pretty easy to use
It is coded in a well-known language, Python, which is a bit boring - not fine
It stores comments in a sqlite database by default - not fine
It does include a voting ...
Try Disqus. It's free, very easy to integrate into websites, and used by companies like CNN for their commenting systems.
I use Disqus on all of my Wordpress installations, two of my Ghost installations and one static website - each of which took less than ten minutes to set up.
One downside to Disqus is that it shows under a tab, "Around the Web" which is ...
Talkyard is a new alternative this year 2018. It's similar to Disqus: threaded, and best comments shown first.
Your requested features:
Shouldn't require me to host it: Yes, fine. There's serverless hosting, see the link above. (It costs money.)
Free as in freedom: Yes, Talkyard is free and open source under the AGPL licence; you can install on your own ...
I would recommend Disqus.
Disqus is a tool that provides comments and management for it. This tool is very popular among static blog sites because it's easy to hack them with Disqus. Regarding to your requirements, detail of this tool is explained as follows:
Easy to incorporate into blogger based blog within html website. Yes, it is. You can incorporate ...
Seems Talkyard blog comments can be useful to you. It's open source, and there's serverless hosting, with privacy — no ads, no tracking.
Here're instructions for Jekyll: https://jekyll-demo.talkyard.io/2018/01/09/installation-instructions.html
There's Gmail and Facebook login, and optional anonymous guest login (is that what you meant with no pre-...