2006-07-26 This is a vocabulary for describing HTTP headers. HTTP Header Vocabulary This vocabulary is a one deemed to contain all HTTP headers. The rdflib.js library uses it as for relationships between an HTTP response and the content (value) of the HTTP header in that response. The ontology is deemed to contain one property for every HTTP header, standard or not. The property in this ontology has a localname which is the header field converted to lower case. See the HTTP specification David Sheets