Related Clues:

• Web page ID
• Web site ID
• Punk rock subgenre
• It might have an extension: Abbr.
• Google hit datum
• Need for a link
• Internet ID
• Online location
• It usually starts with www.
• It starts with "http"
• Internet loc.
• 19-Across has a much-used one
• Double-slash container
• Address on the Web
• Internet address, briefly