The BBC website previously featured Bubbles next to a blackboard with "404" inscribed on it when a user visited a page that did not exist; however, some time between July 2017 and May 2020, this was replaced with an image of two "clangers" (animated puppets) from the BBC television show "Clangers". Similarly, in 2015 the BBC website's "500" Internal Error page featured a cross-eyed Bubbles appearing in front of a blackboard with a background of fire; however, this has since been replaced with the same error message seen on the 404 page.