Rated 4 out of 5 stars

This would be 5 stars if this addon were:
1) updated for 3.6 and
2) included a check with something like "www.downforeveryoneorjustme.com"

This review is for a previous version of the add-on (3.2.0). 

This is an excellent idea! I'll try to get in touch with the site owner to get permission and see if there's an API available. Do you know of other such services?