Editors: Dan Connolly, Midwest Web Sense LLC and W3C connolly@w3.org C. M. Sperberg-McQueen, Black Mesa Technologies LLC cmsmcq@blackmesatech.com Editor's Draft 21 May 2009 Copyright © 2009 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C liability, trademark and document use rules apply. Abstract This specification defines the handling of Web addresses for Hypertext Markup Language (HTML) 5, the