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  2. Google Public DNS - Wikipedia

    en.wikipedia.org/wiki/Google_Public_DNS

    Google Public DNS is a Domain Name System (DNS) service offered to Internet users worldwide by Google. It functions as a recursive name server . Google Public DNS was announced on December 3, 2009, [ 1 ] in an effort described as "making the web faster and more secure."

  3. EDNS Client Subnet - Wikipedia

    en.wikipedia.org/wiki/EDNS_Client_Subnet

    When an authoritative name server receives a DNS query, it takes advantage of ECS DNS extension to resolve the hostname to a CDN which is geolocationally near to the client IP's subnet, hence the client makes further requests to a nearby CDN, thereby reducing latency. The EDNS client subnet mechanism is specified in RFC 7871.

  4. Reserved IP addresses - Wikipedia

    en.wikipedia.org/wiki/Reserved_IP_addresses

    Used for loopback addresses to the local host [1] 169.254.0.0/16 169.254.0.0–169.254.255.255 65 536: Subnet Used for link-local addresses [5] between two hosts on a single link when no IP address is otherwise specified, such as would have normally been retrieved from a DHCP server 172.16.0.0/12 172.16.0.0–172.31.255.255 1 048 576: Private ...

  5. List of DNS record types - Wikipedia

    en.wikipedia.org/wiki/List_of_DNS_record_types

    This list of DNS record types is an overview of resource records (RRs) permissible in zone files of the Domain Name System (DNS). It also contains pseudo-RRs. It also contains pseudo-RRs. Resource records

  6. Extension Mechanisms for DNS - Wikipedia

    en.wikipedia.org/wiki/Extension_mechanisms_for_DNS

    Extension Mechanisms for DNS (EDNS) is a specification for expanding the size of several parameters of the Domain Name System (DNS) protocol which had size restrictions that the Internet engineering community deemed too limited for increasing functionality of the protocol.

  7. Public recursive name server - Wikipedia

    en.wikipedia.org/wiki/Public_recursive_name_server

    A public recursive name server (also called public DNS resolver) is a name server service that networked computers may use to query the Domain Name System (DNS), the decentralized Internet naming system, in place of (or in addition to) name servers operated by the local Internet service provider (ISP) to which the devices are connected. Reasons ...

  8. Link-local address - Wikipedia

    en.wikipedia.org/wiki/Link-local_address

    The Internet Engineering Task Force (IETF) has reserved the IPv4 address block 169.254.0.0 / 16 (169.254.0.0 – 169.254.255.255) for link-local addressing. [1] The entire range may be used for this purpose, except for the first 256 and last 256 addresses (169.254.0.0 / 24 and 169.254.255.0 / 24), which are reserved for future use and must not be selected by a host using this dynamic ...

  9. Multicast address - Wikipedia

    en.wikipedia.org/wiki/Multicast_address

    Multicast DNS (mDNS) address No 224.0.0.252 Link-local Multicast Name Resolution (LLMNR) address No 224.0.0.253 Teredo tunneling client discovery address [23]: §2.17 No 224.0.1.1 Network Time Protocol clients listen on this address for protocol messages when operating in multicast mode. Yes 224.0.1.22 Service Location Protocol version 1 ...