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...

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...

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

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...

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...

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...

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...

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 at the beginning...

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

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'...

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...

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

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

country code top-level domain for the Bailiwick of Guernsey. The domain is administered by Island Networks, who also administer the .je domain for neighbouring...

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...

registration of an ICANN-regulated second-level domain. During this period, a registration must be fully refunded by the domain name registry if cancelled. This...

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:...

allowed level rather than subdomains (although, technically speaking, a second-level domain is actually a subdomain of its top-level domain). Because...

directly at the second level, or on the third level beneath various categorized subdomains at the second level. Third-level domains have restrictions...

Internet country code top-level domain (ccTLD) for Australia. It was created on 5 March 1986. Domain name policy is managed by .au Domain Administration (auDA)...

registration available, currently BTCL only allowing Second-level domain registration of .bd domain for only Bangladeshi citizens. Means, It only allows...

top-level domain (ccTLD) for Spain. It is administered by the Network Information Centre of Spain. Registrations are permitted at the second level or at...

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

despite their corresponding second-level domains under .cn available for those regions. According to the "China Internet Domain Name System" published by...

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...

top-level domain (ccTLD) for the United Kingdom. It was first registered in July 1985, seven months after the original generic top-level domains such...