This is an HTML document, whose profile is set via a server side include, to be pf-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-pf-ns-fnd REDIRECT_SCRIPT_URI=https://www.w3.org/2001/sw/grddl-wg/td/pf-pf-pf-ns-fnd REDIRECT_PROT=https REDIRECT__proto_=https REDIRECT_arg=pf-pf-ns-fnd REDIRECT_HTTPS=on REDIRECT_STATUS=200 SCRIPT_URL=/2001/sw/grddl-wg/td/pf-pf-pf-ns-fnd SCRIPT_URI=https://www.w3.org/2001/sw/grddl-wg/td/pf-pf-pf-ns-fnd PROT=https _proto_=https HTTPS=on HTTP_HOST=www.w3.org HTTP_CF_RAY=9d65f0aaac528e47-IAD HTTP_PRIORITY=u=0, i HTTP_SEC_CH_UA="HeadlessChrome";v="141", "Not?A_Brand";v="8", "Chromium";v="141" HTTP_X_ASN=4134 HTTP_ACCEPT_ENCODING=gzip, br HTTP_SEC_FETCH_DEST=document HTTP_SEC_FETCH_USER=?1 HTTP_CF_IPCOUNTRY=CN HTTP_CF_VISITOR={"scheme":"https"} HTTP_CDN_LOOP=cloudflare; loops=1 HTTP_SEC_FETCH_MODE=navigate HTTP_CF_CONNECTING_IP=115.208.74.55 HTTP_SEC_FETCH_SITE=none HTTP_SEC_CH_UA_PLATFORM=Windows HTTP_SEC_CH_UA_MOBILE=?0 HTTP_PRAGMA=no-cache HTTP_CACHE_CONTROL=no-cache HTTP_ACCEPT=text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7 HTTP_USER_AGENT=Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; SE 2.X MetaSr 1.0; SE 2.X MetaSr 1.0; .NET CLR 2.0.50727; SE 2.X MetaSr 1.0) HTTP_X_SSL=1 HTTP_X_FORWARDED_PROTO=https HTTP_X_FORWARDED_PORT=443 HTTP_X_REQUEST_ID=9d65f0aaac528e47 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=115.208.74.55 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=47594 REDIRECT_URL=/2001/sw/grddl-wg/td/pf-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-pf-ns-fnd SCRIPT_NAME=/2001/sw/grddl-wg/td/pf.shtml DATE_LOCAL=Tuesday, 03-Mar-2026 04:36:25 UTC DATE_GMT=Tuesday, 03-Mar-2026 04:36:25 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