Web content labelling

Web content labelling refers to attempts to embed labelling/classification metadata into web-delivered content that can be used by software, e.g. Adult content filters.

Schemes

• RSACi (1995-1999)
• RTA Label (Restricted to Adults) http://rtalabel.org (2006-11-06 - 2010?)
• ICRA (2000 - October 2010)
• PICS supported by Internet Explorer / Apple Parental Controls - but apparently limited adoption across industry, now discontinued (1997-2009)
• POWDER - technical sucessor to PICS (2009- )
• Quatro Project (EU project using POWDER) (-2014)
• Draft proposal for HTTP request header for safe content - 2013-2015, revived in 2018

Further reading

• Web content labelling - Richard Clayton, September 2007
• ICRAfail: A Lesson For the Future - Phil Archer, 2009-11-26