This is an HTML document, whose profile is set via a server side include, to be pf-ns-fnd. It is intended itself to be used as a profile or namespace document. Rewrite rules in the .htaccess file set the environment variable arg, (i.e. REDIRECT_arg) which is used as the profile. REDIRECT_SCRIPT_URL=/2001/sw/grddl-wg/td/pf-pf-ns-fnd REDIRECT_SCRIPT_URI=https://www.w3.org/2001/sw/grddl-wg/td/pf-pf-ns-fnd REDIRECT_PROT=https REDIRECT__proto_=https REDIRECT_arg=pf-ns-fnd REDIRECT_HTTPS=on REDIRECT_STATUS=200 SCRIPT_URL=/2001/sw/grddl-wg/td/pf-pf-ns-fnd SCRIPT_URI=https://www.w3.org/2001/sw/grddl-wg/td/pf-pf-ns-fnd PROT=https _proto_=https HTTPS=on HTTP_HOST=www.w3.org HTTP_USER_AGENT=Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) HTTP_ACCEPT=*/* HTTP_ACCEPT_ENCODING=gzip, br HTTP_CF_RAY=9de27b6eadaa77be-IAD HTTP_CDN_LOOP=cloudflare; loops=1 HTTP_CF_CONNECTING_IP=216.73.216.14 HTTP_CF_IPCOUNTRY=US HTTP_CF_VISITOR={"scheme":"https"} HTTP_X_ASN=16509 HTTP_COOKIE=__cf_bm=_7LqqixSWaRWw6zq8a7ykT8DjuHQivBNfjj7fc5AfdE-1773818502.5067499-1.0.1.1-e2TkP2WdnQv8dLY3euqCTkrO6MQepnva4Z3HF6VLJ7cBK5MFz2JxvwJHPO7cwXf_GDuqPIlcKPmm7TKdLCGgXeo3HH2QAjjiFWTWdlkDAwG5nuHZAlLLQhsjHVaMTRjG HTTP_X_SSL=1 HTTP_X_FORWARDED_PROTO=https HTTP_X_FORWARDED_PORT=443 HTTP_X_REQUEST_ID=9de27b6eadaa77be PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin SERVER_SIGNATURE= SERVER_SOFTWARE=Apache/2 SERVER_NAME=www.w3.org SERVER_ADDR=10.0.1.112 SERVER_PORT=443 REMOTE_ADDR=216.73.216.14 DOCUMENT_ROOT=/afs/w3.org/pub/WWW REQUEST_SCHEME=https CONTEXT_PREFIX= CONTEXT_DOCUMENT_ROOT=/afs/w3.org/pub/WWW SERVER_ADMIN=webreq@w3.org SCRIPT_FILENAME=/afs/w3.org/pub/WWW/2001/sw/grddl-wg/td/pf.shtml REMOTE_PORT=54864 REDIRECT_URL=/2001/sw/grddl-wg/td/pf-pf-ns-fnd GATEWAY_INTERFACE=CGI/1.1 SERVER_PROTOCOL=HTTP/1.1 REQUEST_METHOD=GET QUERY_STRING= REQUEST_URI=/2001/sw/grddl-wg/td/pf-pf-ns-fnd SCRIPT_NAME=/2001/sw/grddl-wg/td/pf.shtml DATE_LOCAL=Wednesday, 18-Mar-2026 07:21:43 UTC DATE_GMT=Wednesday, 18-Mar-2026 07:21:43 GMT LAST_MODIFIED=Tuesday, 27-Mar-2007 14:36:15 UTC DOCUMENT_URI=/2001/sw/grddl-wg/td/pf.shtml DOCUMENT_ARGS= USER_NAME=mirror DOCUMENT_NAME=pf.shtml