Static site generators like Hugo and Docusaurus have different levels of support for comment systems. The current version of Docusaurus does not have a built-in commenting system. With Hugo, it depends on whether the theme you are using has added support for additional commenting systems. It could have Disqus, Giscus, or Utterances to name a few. With any of the static site generators, you can customize and add your favorite comment system to it. This involves adding some code and specifying in the front matter that you want comments enabled. Here is how I added comments to Docusaurus for my blog.