CKAN LOD Datasets This website gives an overview of Linked Data sources cataloged on CKAN and their completeness level for inclusion in the LOD cloud. It furthermore offers a validator for your CKAN entry with step-by-step guidance.
Html Validator :: Modules pour Firefox HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon in the status bar when browsing. The extension can validate the HTML sent by the server or the HTML in the memory (after Ajax execution) ...