Extensions domain settings

The Extensions tab provides configuration for domain extensions. Extensions are external services that can be used for inspecting comments for spam or toxic content (such as insults or threats).


  • Extension configuration is provided per-domain, in the form of linebreak-separated key=value pairs.
  • Empty lines and lines starting with a # are ignored.
  • An extension can be enabled for the domain unless it’s explicitly disabled in the static system configuration.

Also, an extension typically needs an API key registered on the corresponding service. The API key can be provided in two ways:

  • Globally, in the secrets config.
  • Locally (per-domain), in the extension configuration field as the apiKey value.
The extension won’t be used if neither global nor local API key is provided.

All other parameters are extension-specific, read the corresponding extensions documentation for details.

Available extensions

Comentario supports the following extensions.


The Akismet extension connects to the Akismet service for checking comments for spam.

APILayer SpamChecker

The APILayer SpamChecker extension uses the Spam Check API service of APILayer for checking comments for spam.


The Perspective extension uses the Perspective API service for checking comments for spam or toxic content.

See also