Responses to postings that were made before the error were also temporarily broken on Facebook, with responses to status updates being affixed with a warning sign and an "Unable to post comment" message. Similarly, "likes" weren't registered during the incident, with an error message immediately popping up when the "like" button was pressed. Users were still able to access Facebook through either its website or mobile apps, but interactions were unavailable regardless of platform. Facebook has long been the standard of social network reliability, rarely going offline or facing errors. The last major outage for the social network occured on Sept. 23, 2010, when Facebook was down for more than two hours for some users.