Second Level Domain: Difference between revisions
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The '''Second Level Domain''', or '''SLD''', is the data directly before the top-level domain ([[TLD]]).<ref>[http://www.giantgeek.com/blog/?p=97 What is a SLD]</ref> For example, in www.example.com, “example” represents the second level domain, as the suffix "(dot)-com" represents the [[TLD]]. The SLD is generally the portion of the [[URL]] that identifies the website's domain name.<ref>[http://www.build-your-website.co.uk/choosing-domain-name-second-level.htm SLD]</ref> Usually, the SLD is determined and defined upon registration of a domain name. More than one SLD can function on the same [[Internet Protocol|IP]] Address.<ref>[http://help.godaddy.com/article/335 SLD Definition]</ref> | The '''Second Level Domain''', or '''SLD''', is the data directly before the top-level domain ([[TLD]]).<ref>[http://www.giantgeek.com/blog/?p=97 What is a SLD]</ref> For example, in www.example.com, “example” represents the second level domain, as the suffix "(dot)-com" represents the [[TLD]]. The SLD is generally the portion of the [[URL]] that identifies the website's domain name.<ref>[http://www.build-your-website.co.uk/choosing-domain-name-second-level.htm SLD]</ref> Usually, the SLD is determined and defined upon registration of a domain name. More than one SLD can function on the same [[Internet Protocol|IP]] Address.<ref>[http://help.godaddy.com/article/335 SLD Definition]</ref> | ||
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An example of this would be .co.uk, where .uk is the (cc)TLD and .co is the (cc)SLD. In this circumstance, the domain name ("example" in "example.co.uk") would be considered the third level domain, as it is in the third position.<ref>[http://www.igoldrush.com/reference/domain-glossary/c/ccsld-country-code-second-level-domain iGoldrush Domain Glossary]</ref> This can become confusing, as the domain name is commonly equated with the second level domain, and the [[subdomain]] is commonly equated with the third level domain. In these circumstances, the third level domain is sometimes referred to as a '''functional SLD'''.<ref>[http://tools.ietf.org/html/draft-ietf-provreg-dn-defn-00 Domain Name and Related Definitions, ietf.org]</ref> | An example of this would be .co.uk, where .uk is the (cc)TLD and .co is the (cc)SLD. In this circumstance, the domain name ("example" in "example.co.uk") would be considered the third level domain, as it is in the third position.<ref>[http://www.igoldrush.com/reference/domain-glossary/c/ccsld-country-code-second-level-domain iGoldrush Domain Glossary]</ref> This can become confusing, as the domain name is commonly equated with the second level domain, and the [[subdomain]] is commonly equated with the third level domain. In these circumstances, the third level domain is sometimes referred to as a '''functional SLD'''.<ref>[http://tools.ietf.org/html/draft-ietf-provreg-dn-defn-00 Domain Name and Related Definitions, ietf.org]</ref> | ||
==References== | ==References== | ||
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[[Category: Glossary]] | [[Category: Glossary]] | ||