{"id":24865,"date":"2024-03-07T23:32:41","date_gmt":"2024-03-07T20:32:41","guid":{"rendered":"https:\/\/infinitydomainhosting.com\/kb\/?p=24865"},"modified":"2025-09-24T19:10:39","modified_gmt":"2025-09-24T16:10:39","slug":"fully-qualified-domain-names-fqdn-explained","status":"publish","type":"post","link":"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/","title":{"rendered":"Fully Qualified Domain Names (FQDN): Explained"},"content":{"rendered":"<br \/>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#Fully_Qualified_Domain_Names_FQDN_Explained\" >Fully Qualified Domain Names (FQDN): Explained<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#Structure_of_a_fully_qualified_domain_Name\" >Structure of a fully qualified domain Name<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#Importance_of_fully_qualified_domain_names\" >Importance of fully qualified domain names<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#How_to_Obtain_a_Fully_Qualified_Domain_Name\" >How to Obtain a Fully Qualified Domain Name<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#FAQs\" >FAQs<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#What_is_the_difference_between_an_FQDN_and_a_partial_domain_name\" >What is the difference between an FQDN and a partial domain name?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#Can_an_IP_address_be_used_as_a_substitute_for_an_FQDN\" >Can an IP address be used as a substitute for an FQDN?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/infinitydomainhosting.com\/kb\/fully-qualified-domain-names-fqdn-explained\/#Do_all_websites_have_FQDNs\" >Do all websites have FQDNs?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Fully_Qualified_Domain_Names_FQDN_Explained\"><\/span>Fully Qualified Domain Names (FQDN): Explained<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/infinitydomainhosting.com\/kb\/the-ultimate-guide-to-amazon-web-hosting-everything-you-need-to-know\/\">A<\/a> <a href=\"https:\/\/www.a2hosting.com\/blog\/what-is-a-fully-qualified-domain-name\/\" target=\"_blank\" rel=\"noopener\">fully qualified domain name<\/a> (<a href=\"https:\/\/www.a2hosting.com\/blog\/what-is-a-fully-qualified-domain-name\/\" target=\"_blank\" rel=\"noopener\">FQDN<\/a>) is a complete <a href=\"https:\/\/www.a2hosting.com\/domains\/\" target=\"_blank\" rel=\"noopener\">domain name<\/a> that specifies the exact location of a resource within the <a href=\"https:\/\/www.a2hosting.com\/domains\/\" target=\"_blank\" rel=\"noopener\">domain name<\/a> System (<a href=\"https:\/\/infinitydomainhosting.com\/index.php?rp=\/knowledgebase\/128\/How-to-manage-your-DNS-settings-for-your-domain.html\">DNS<\/a>). It consists of a hostname and a <a href=\"https:\/\/www.a2hosting.com\/domains\/\" target=\"_blank\" rel=\"noopener\">domain<\/a> name, including the top-level <a href=\"https:\/\/www.a2hosting.com\/domains\/\" target=\"_blank\" rel=\"noopener\">domain<\/a> (<a href=\"https:\/\/hostadvice.com\/blog\/domains\/what-is-a-top-level-domain\/\" target=\"_blank\" rel=\"noopener\">TLD<\/a>). For example, www.example.com is a <a href=\"https:\/\/hostadvice.com\/blog\/domains\/fully-qualified-domain-name\/\" target=\"_blank\" rel=\"noopener\">fully qualified domain<\/a> name.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Structure_of_a_fully_qualified_domain_Name\"><\/span>Structure of a <a href=\"https:\/\/hostadvice.com\/blog\/domains\/fully-qualified-domain-name\/\" target=\"_blank\" rel=\"noopener\">fully qualified domain<\/a> Name<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>An FQDN consists of several parts, including:<\/p>\n<ul>\n<li>\n\t\t<strong><a href=\"https:\/\/www.a2hosting.com\/\" target=\"_blank\" rel=\"noopener\">Host<\/a> Name:<\/strong> The first part is the host name, which refers to the unique name assigned to the resource, such as a <a href=\"https:\/\/www.hostinger.com\/website-builder\" target=\"_blank\" rel=\"noopener\">website<\/a> or server.\n\t<\/li>\n<li>\n\t\t<strong>Domain Name:<\/strong> The second part is <a href=\"https:\/\/support.hostinger.com\/en\/articles\/6807580-website-builder-how-to-change-a-domain\" target=\"_blank\" rel=\"noopener\">the domain<\/a>, which identifies the specific domain in which the resource is located. For instance, in the domain name example.com, &#8220;example&#8221; is the name of the domain.\n\t<\/li>\n<li>\n\t\t<strong>Top-Level Domain (<a href=\"https:\/\/hostadvice.com\/blog\/domains\/what-is-a-top-level-domain\/\" target=\"_blank\" rel=\"noopener\">TLD<\/a>):<\/strong> Finally, the top-level domain (TLD) represents the highest level of the domain hierarchy and indicates the type of organization or geographical location associated with the domain. Some common TLDs include .com, .org, .net, .edu, and .gov, among others. Together, these components make up the FQDN, which serves as a crucial element in navigating the vast and complex network of the internet.\n\t<\/li>\n<\/ul>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-26595\" src=\"http:\/\/infinitydomainhosting.com\/kb\/wp-content\/uploads\/2024\/03\/17.jpg\" alt=\"How To Identify The Domain: Easy Identification Methods\" width=\"960\" height=\"540\" srcset=\"https:\/\/infinitydomainhosting.com\/kb\/wp-content\/uploads\/2024\/03\/17.jpg 960w, https:\/\/infinitydomainhosting.com\/kb\/wp-content\/uploads\/2024\/03\/17-300x169.jpg 300w, https:\/\/infinitydomainhosting.com\/kb\/wp-content\/uploads\/2024\/03\/17-768x432.jpg 768w, https:\/\/infinitydomainhosting.com\/kb\/wp-content\/uploads\/2024\/03\/17-585x329.jpg 585w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Importance_of_fully_qualified_domain_names\"><\/span>Importance of <a href=\"https:\/\/hostadvice.com\/blog\/domains\/fully-qualified-domain-name\/\" target=\"_blank\" rel=\"noopener\">fully qualified domain names<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/hostadvice.com\/blog\/domains\/fully-qualified-domain-name\/\" target=\"_blank\" rel=\"noopener\">Fully qualified domain names<\/a> are important for several reasons:<\/p>\n<ul>\n<li>\n\t\t<strong>Uniqueness:<\/strong> FQDNs are essential because they provide a unique identifier for every resource on the network, ensuring that resources can be located without ambiguity. This uniqueness is achieved by combining the hostname with the domain name, which creates a specific FQDN.\n\t<\/li>\n<li>\n\t\t<strong>Organization:<\/strong> Organizational benefits are another important aspect of FQDNs. They help to organize resources within the <a href=\"https:\/\/www.hostinger.com\/tutorials\/what-is-dns\" target=\"_blank\" rel=\"noopener\">DNS<\/a> hierarchy, making it easier to manage and find specific resources. Because FQDNs are hierarchical, they can be used to create logical groupings of resources, which can be managed more efficiently. This organization helps to ensure that resources are allocated appropriately, and that network administrators can easily identify and troubleshoot issues.\n\t<\/li>\n<li>\n\t\t<strong>Access:<\/strong> FQDNs make it easy to access resources on the internet, such as websites, servers, and other networked devices. By providing a unique identifier, FQDNs enable users to access these resources quickly and easily. Moreover, FQDNs can be used to simplify complex URLs and IP addresses, making it easier for users to remember and access resources. This accessibility is essential for businesses and individuals alike, as it enables them to communicate and collaborate seamlessly across the internet and networks.\n\t<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Obtain_a_Fully_Qualified_Domain_Name\"><\/span>How to Obtain a Fully Qualified Domain Name<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Obtaining a fully qualified domain name involves registering a domain name with a <a href=\"https:\/\/infinitydomainhosting.com\/kb\/domain-registrar-and-web-hosting\/\">Domain Registrar<\/a>. This typically involves choosing a unique domain name and selecting a top-level domain from those that are available (such as .com, .net, or .org).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Fully Qualified <a href=\"https:\/\/www.a2hosting.com\/domains\/\" target=\"_blank\" rel=\"noopener\">domain names<\/a> are essential for identifying and accessing resources within the Domain Name System. By providing a complete and specific address for a resource, FQDNs ensure that users can easily locate and access the resources they need on the internet.<\/p>\n<p><!--KB_CAT_BLOCK--><\/p>\n<figure class=\"kb-cat-placeholder\" style=\"margin:1.75rem 0;display:block;\"><img src=\"https:\/\/infinitydomainhosting.com\/kb\/assets\/img\/cat-domains.webp\" alt=\"Fully Qualified Domain Names (FQDN): Explained\" loading=\"lazy\" decoding=\"async\" style=\"max-width:100%;height:auto;display:block;border-radius:12px;box-shadow:0 8px 28px rgba(0,0,0,0.12);\" \/><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_an_FQDN_and_a_partial_domain_name\"><\/span>What is the difference between an FQDN and a partial domain name?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A Fully Qualified Domain Name includes the host name, domain name, and top-level domain, providing a complete and specific address for a resource. A partial domain name may only include the domain name and top-level domain, and is not as specific or unique as an FQDN.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_an_IP_address_be_used_as_a_substitute_for_an_FQDN\"><\/span>Can an <a href=\"https:\/\/www.hostinger.com\/tutorials\/what-is-ip-address\" target=\"_blank\" rel=\"noopener\">IP address<\/a> be used as a substitute for an FQDN?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>While an IP address can be used to access a resource, it is not as user-friendly or specific as an FQDN. FQDNs provide a human-readable and unique address for resources, making them easier to remember and use.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_all_websites_have_FQDNs\"><\/span>Do all websites have FQDNs?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Yes, all websites that are accessible on the internet have FQDNs. This allows them to be uniquely identified and accessed by users all over the world.<\/p>\n<p><\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fully Qualified Domain Names (FQDN): Explained A fully qualified domain name (FQDN) is a complete domain name that specifies the exact location&hellip;<\/p>\n","protected":false},"author":1,"featured_media":26926,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[1,9],"tags":[9080],"class_list":["post-24865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","category-domains","tag-fully-qualified-domain-names"],"_links":{"self":[{"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/posts\/24865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/comments?post=24865"}],"version-history":[{"count":6,"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/posts\/24865\/revisions"}],"predecessor-version":[{"id":44060,"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/posts\/24865\/revisions\/44060"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/media\/26926"}],"wp:attachment":[{"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/media?parent=24865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/categories?post=24865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/infinitydomainhosting.com\/kb\/wp-json\/wp\/v2\/tags?post=24865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}