HTTP/2 200 date: Wed, 08 Oct 2025 03:21:34 GMT content-type: application/xml content-encoding: gzip cache-control: public, max-age=3600 cross-origin-opener-policy: same-origin expires: Wed, 08 Oct 2025 04:21:34 GMT referrer-policy: same-origin vary: Cookie, origin, Accept-Encoding x-content-type-options: nosniff x-frame-options: DENY x-resolution-methods: manual;auto;fallback x-resolution-outcomes: ;RfcAdapter: using docid IETF RFC 4395 -> using query @.type == "IETF" && @.primary == true && @.id == "RFC 4395" -> 1 found,; last-modified: Wed, 08 Oct 2025 03:21:34 GMT cf-cache-status: MISS set-cookie: __cf_bm=05CevAnN3RQ0elLd98lr6wHalvX_.O0mZmII3k0qSoY-1759893694-1.0.1.1-jhoDVourM9LDguttl17oB37Qah9_a3SgxtXQpLAB1sWqd2zwhC5bbmN5mepRciO_pqgRVirYqKwpjzrc7A60Tqbnso._.Ze4blp309WegJM; path=/; expires=Wed, 08-Oct-25 03:51:34 GMT; domain=.ietf.org; HttpOnly; Secure; SameSite=None server: cloudflare cf-ray: 98b2823dcaa7a8b0-BLR alt-svc: h3=":443"; ma=86400 This document provides guidelines and recommendations for the definition of Uniform Resource Identifier (URI) schemes. It also updates the process and IANA registry for URI schemes. It obsoletes both RFC 2717 and RFC 2718. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.