In the Domain Name System (DNS) hierarchy, a second-level domain (SLD or 2LD) is a domain that is directly below a top-level domain (TLD). For example...

A top-level domain (TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. The top-level...

Single-letter second-level domains are domains in which the second-level domain of the domain name consists of only one letter, such as x.com. In 1993...

sequence .ac (short for academia) is in use in many countries as a second-level domain for academic institutions such as universities, colleges, and research...

sequence .edu (short for educational) is in use in many countries as a second-level domain for academic institutions such as universities, colleges, and research...

A country code top-level domain (ccTLD) is an Internet top-level domain generally used or reserved for a country, sovereign state, or dependent territory...

is used as a second-level domain in the Domain Name System used to route internet traffic. Domain registrants register second-level domains of the form...

list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet...

Below these top-level domains in the DNS hierarchy are the second-level and third-level domain names that are typically open for reservation by end-users...

Generic top-level domains (gTLDs) are one of the categories of top-level domains (TLDs) maintained by the Internet Assigned Numbers Authority (IANA) for...

authentication for each domain provides access control over the various levels of the domain. In the United Kingdom, the second-level domain names are standard...

code second-level domain is a second-level domain to a country code top-level domain.[citation needed] Such a domain may be reserved by a domain name...

country code top-level domain is a top-level domain in the Domain Name System (DNS) of the Internet. IDN ccTLDs are specially encoded domain names that are...

The domain name .org is a generic top-level domain (gTLD) of the Domain Name System (DNS) used on the Internet. The name is truncated from 'organization'...

The domain com is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet. Created in the first group of Internet domains in March of...

A domain name registry is a database of all domain names and the associated registrant information in the top level domains of the Domain Name System...

The domain names example.com, example.net, example.org, and example.edu are second-level domain names in the Domain Name System of the Internet. They...

operations for domain names under the second-level domains .com.ru, .net.ru, .org.ru and .pp.ru. The company RELCOM also proposes third-level registrations...

Domain Administration (auDA) is the policy authority and industry self-regulatory body for the .au domain, which is the country-code top-level domain...

Domain Name Authority (ZADNA). Most domains are registered under the second-level domain .co.za. ZA is an abbreviation of the Dutch name for the country of...

.ee is the internet country code top-level domain (ccTLD) of Estonia, operated by the Estonian Internet Foundation. .com.ee – companies (incorporated entities)...

int domain names, in alphabetical order of the second-level domain name. As of 7 November 2022[update], the .int domain file contains 168 second-level domain...

typefaces). Many top-level domains have started to accept internationalized domain name registrations at the second or lower levels. Afilias (.INFO) offered...

X.com may refer to: A single-letter second-level domain on the internet, currently owned by X Corp. Twitter, a social media platform officially named...

.hn is the Internet country code top-level domain (ccTLD) for Honduras. .net.hn .org.hn .edu.hn .gob.hn .com.hn Source: Internet in Honduras "Centro de...

mcast.net is a second level domain reserved by the Internet Assigned Numbers Authority (IANA) and maintained by Verisign used to bind DNS records unique...

domain name suffixes under which independent organisations can register their own sites. Entries on the list are referred to as effective top-level domains...

generic Internet top-level domains (TLD) contains generic top-level domains, which are those domains in the DNS root zone of the Domain Name System of the...

registration restrictions on second-level .co domains; any individual or entity in the world can register a .co domain. .CO Internet S.A.S. from Bogotá...

code top-level domain (ccTLD) for Kyrgyzstan. Although registrations are normally at the second level, there are some specialized third-level registrations...