A door hanger (also spelled doorhanger or door-hanger) is a plastic or cardboard sign, generally rectangular in shape, cut to hang from the handle or knob of a door. They are sometimes used to distribute print advertising to residences. Door hangers are often seen in hotels and other places of lodging as a means for guests to communicate with maintenance and housekeeping staff.
More recently, hotels have used the do not disturb signs as a way to brand themselves and provide inexpensive advertising.
In 2007, Embassy Suites ran a contest allowing the public to design do not disturb signs.The winner was announced in 2008.
Door Hangers are also used in competition with direct mail as an advertising vehicle. Most recently, companies providing this type of advertising have been using the term Direct to Door Advertising. This type of advertising offers a number of advantages over traditional direct mail in that the impression is "guaranteed". The home owner must handle the piece and typically on a door hanger there is just one advertising message giving the advertiser great exposure.
This type of advertising is used by national brands and local companies to help drive traffic into their stores, increase trial by offering a sample, and to increase their brand awareness. This method of delivery can often be more cost effective and with today's technology, the delivery of the pieces is completely trackable by integrating GPS and photos into the Proof of Performance