This article covers professional, free, and widely used scripts you can integrate into your projects. Each recommendation includes a description and an official link.

  1. WP native comments: Use WordPress hooks to create a custom comment callback. (https://developer.wordpress.org/themes/functionality/comments/)
  2. Disqus: Third-party commenting system for enhanced moderation. (https://disqus.com/)
  3. wpDiscuz: Enhanced comment system plugin. (https://wordpress.org/plugins/wpdiscuz/)
  4. Commento: Lightweight commenting system alternative. (https://commento.io/)
  5. Jetpack Comments: Optional replacement for default WordPress comments. (https://wordpress.org/plugins/jetpack/)

Integrate these scripts carefully according to your project requirements and best practices. Always test performance, compatibility, and security.