HTTP/2 200 date: Tue, 15 Jul 2025 01:20:05 GMT content-type: text/plain; charset=utf-8 content-length: 427 cf-ray: 95f56f6d4beac19f-BLR last-modified: Mon, 31 Mar 2025 19:36:32 GMT etag: "3c1-631a8899335a8-gzip" accept-ranges: bytes vary: Accept-Encoding content-encoding: gzip strict-transport-security: max-age=31536000; includeSubDomains x-frame-options: SAMEORIGIN x-xss-protection: 1; mode=block x-content-type-options: nosniff cf-cache-status: DYNAMIC server: cloudflare alt-svc: h3=":443"; ma=86400 [BCP153] Best Current Practice 153, . At the time of writing, this BCP comprises the following: Weil, J., Kuarsingh, V., Donley, C., Liljenstolpe, C., and M. Azinger, "IANA-Reserved IPv4 Prefix for Shared Address Space", BCP 153, RFC 6598, DOI 10.17487/RFC6598, April 2012, . Cotton, M., Vegoda, L., Bonica, R., Ed., and B. Haberman, "Special-Purpose IP Address Registries", BCP 153, RFC 6890, DOI 10.17487/RFC6890, April 2013, . Bonica, R., Cotton, M., Haberman, B., and L. Vegoda, "Updates to the Special-Purpose IP Address Registries", BCP 153, RFC 8190, DOI 10.17487/RFC8190, June 2017, .