Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
✔ Once again they made weird changes to their site... this time to remove the site's label field, so we'll just show the site's domain instead.
1.3.0 Release Notes:
✔ Looks like Alexa stopped showing rating's stars, breaking the add-on. So, for now if no rating is shown it'll be ignored and sites added regardless.