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  2. .invalid - Wikipedia

    en.wikipedia.org/wiki/.invalid

    The name invalid is reserved by the Internet Engineering Task Force (IETF) as a domain name that may not be installed as a top-level domain in the Domain Name System (DNS) of the Internet. [ 1 ] Reserved DNS names

  3. DNS Certification Authority Authorization - Wikipedia

    en.wikipedia.org/wiki/DNS_Certification...

    This property specifies a method for certificate authorities to report invalid certificate requests to the domain name holder using the Incident Object Description Exchange Format. As of 2018 [update] , not all certificate authorities support this tag, so there is no guarantee that all certificate issuances will be reported.

  4. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The range header is used by HTTP clients to enable resuming of interrupted downloads, or split a download into multiple simultaneous streams. 207 Multi-Status (WebDAV; RFC 4918) The message body that follows is by default an XML message and can contain a number of separate response codes, depending on how many sub-requests were made.

  5. DMARC - Wikipedia

    en.wikipedia.org/wiki/DMARC

    Rewriting can range from just appending .INVALID [note 1] to the domain name, to allocating a temporary user ID where a modified version of the user's address is used, or an opaque ID is used, which keeps the user's "real" email address private from the list.

  6. Country code top-level domain - Wikipedia

    en.wikipedia.org/wiki/Country_code_top-level_domain

    An internationalized country code top-level domain (IDN ccTLD) is a top-level domain with a specially encoded domain name that is displayed in an end user application, such as a web browser, in its native language script or a non-alphabetic writing system, such as Latin script (.us, .uk and .br), Indic script (.

  7. E.164 - Wikipedia

    en.wikipedia.org/wiki/E.164

    E.164 numbers may be registered in the Domain Name System (DNS) of the Internet in which the second-level domain e164.arpa has been reserved for telephone number mapping (ENUM). In the system, any telephone number may be mapped into a domain name using a reverse sequence of subdomains for each digit.

  8. SRV record - Wikipedia

    en.wikipedia.org/wiki/SRV_record

    service: the symbolic name of the desired service. proto: the transport protocol of the desired service; this is usually either TCP or UDP. name: the domain name for which this record is valid, ending in a dot. ttl: standard DNS time to live field. IN: standard DNS class field (this is always IN). SRV: Type of Record (this is always SRV).

  9. WHOIS - Wikipedia

    en.wikipedia.org/wiki/WHOIS

    Currently, the Internet Corporation for Assigned Names and Numbers broadly requires that the mailing address, phone number and e-mail address of those owning or administering a domain name to be made publicly available through the "WHOIS" directories. The registrant's (domain owner's) contact details, such as address and telephone number, are ...