New W3C Validation Service with RDFa 1.1 and microdata
W3C has launched a new HTML validation site, the Nu Markup Validation Service. From a Semantic Web point of view it is important to note that the default setting of the validator validates HTML5 with RDFa 1.1. Lite and with microdata, the two simpler syntaxes to add structured data to HTML. Furthermore, the user can also choose the option of validating with RDFa 1.1 (instead of RDFa Lite) as well as microdata.