{"id":25233,"date":"2026-11-03T09:38:37","date_gmt":"2026-11-03T09:38:37","guid":{"rendered":"https:\/\/lite14.net\/blog\/?p=25233"},"modified":"2026-11-03T09:38:37","modified_gmt":"2026-11-03T09:38:37","slug":"understanding-dns-records-a-cname-mx-and-txt-explained","status":"publish","type":"post","link":"https:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/","title":{"rendered":"Understanding DNS Records: A, CNAME, MX, and TXT Explained"},"content":{"rendered":"<p><span style=\"font-weight: 400\">\u201cDNS is the backbone of the internet.\u201d Anyone who has studied networking has heard this. But why is DNS called that? The reason is that it is the only system that allows computers to navigate the internet.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">DNS stands for Domain Name System, and its core function is to translate domain names into IP addresses. Without this translation, you would be unable to search for websites using their names.<\/span><\/p>\n<p><span style=\"font-weight: 400\">DNS records make this process work. Each record has a specific job. Some help visitors reach a website, while others direct email or prove that a domain belongs to you.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Understanding these records can help you manage a website, fix common errors, and keep your online services running well.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 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:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/#What_Are_DNS_Records\" >What Are DNS Records?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/#A_Record_Connecting_a_Domain_to_an_IP_Address\" >A Record: Connecting a Domain to an IP Address<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/#CNAME_Record_Pointing_One_Name_to_Another\" >CNAME Record: Pointing One Name to Another<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/#MX_Record_Directing_Email_to_the_Right_Server\" >MX Record: Directing Email to the Right Server<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/#TXT_Record_Storing_Text_for_Verification_and_Security\" >TXT Record: Storing Text for Verification and Security<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/#How_to_Check_DNS_Records_for_a_Domain\" >How to Check DNS Records for a Domain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/#Final_Thoughts\" >Final Thoughts<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Are_DNS_Records\"><\/span><span style=\"font-weight: 400\">What Are DNS Records?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">So, what are DNS records? In the simplest terms, they are just a small text document with a specific type of formatting. A domain can have many types of DNS records. Each record does something specific. For example, we have the \u201cA\u201d record, which contains the IP address of the domain.<\/span><\/p>\n<p><span style=\"font-weight: 400\">When your computer searches for a website using its domain name, it actually requests the DNS system to provide it with the A record through a process known as <\/span><a href=\"https:\/\/www.datadoghq.com\/knowledge-center\/dns-resolution\/\"><span style=\"font-weight: 400\">DNS resolution<\/span><\/a><span style=\"font-weight: 400\">. Once it gets the A record, it uses the IP address to navigate to the website.<\/span><\/p>\n<p><span style=\"font-weight: 400\">There are many types of DNS records, but four are especially useful to understand: A, CNAME, MX, and TXT. Let\u2019s see what they do and why they are so important.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400\">\n<h2><span class=\"ez-toc-section\" id=\"A_Record_Connecting_a_Domain_to_an_IP_Address\"><\/span><span style=\"font-weight: 400\">A Record: Connecting a Domain to an IP Address<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400\">An A record maps a domain name to an <\/span><b>IPv4 <\/b><span style=\"font-weight: 400\">address. This IP address tells computers which server to go to to reach the website.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">For example, let\u2019s say we have a domain called \u201cexample.com.\u201d Its A record maps it to the IP <\/span><i><span style=\"font-weight: 400\">192.0.2.1.<\/span><\/i><span style=\"font-weight: 400\"> So, when your computer wants to go to example.com, it will fetch its A record, get that IP from it, and then connect to the server with that IP.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Without an A record, computers would never know the IP address of the website they want to reach.\u00a0<\/span><\/p>\n<p><b>A record<\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Type<\/b><\/td>\n<td><b>Name<\/b><\/td>\n<td><b>Value<\/b><\/td>\n<td><b>TTL<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">A<\/span><\/td>\n<td><span style=\"font-weight: 400\">example.com<\/span><\/td>\n<td><span style=\"font-weight: 400\">192.0.2.1<\/span><\/td>\n<td><span style=\"font-weight: 400\">3600<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400\">A records are often used for websites and subdomains. If you move your website to a new server (i.e by changing your hosting), you will need to update this record with the new IP address.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Aside from an A record, there is also an <\/span><a href=\"https:\/\/lite14.net\/blog\/2026\/09\/15\/how-to-check-if-a-company-domain-is-valid\/\"><span style=\"font-weight: 400\">AAAA record<\/span><\/a><span style=\"font-weight: 400\">.\u00a0 It serves a similar purpose but links a domain to an IPv6 address instead of IPv4. A domain can have both A and AAAA records.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400\">\n<h2><span class=\"ez-toc-section\" id=\"CNAME_Record_Pointing_One_Name_to_Another\"><\/span><span style=\"font-weight: 400\">CNAME Record: Pointing One Name to Another<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400\">CNAME records are special. They don\u2019t map a domain name to an IP address; instead, they map it to another domain name.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">This record is commonly used to point subdomain names to main domain names. For example, let\u2019s say you have a domain called \u201cwww.example.com,\u201d but you want it to go to the same place as the domain \u201cexample.com\u201d (www.example.com is a subdomain). Then you would use a CNAME record to point www.example.com to example.com.<\/span><\/p>\n<p><b>CNAME record<\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Type<\/b><\/td>\n<td><b>Name<\/b><\/td>\n<td><b>Points To<\/b><\/td>\n<td><b>TTL<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">CNAME<\/span><\/td>\n<td><span style=\"font-weight: 400\">www.example.com<\/span><\/td>\n<td><span style=\"font-weight: 400\">example.com<\/span><\/td>\n<td><span style=\"font-weight: 400\">3600<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400\">Anyone who enters www.example.com would reach example.com because of the CNAME record.<\/span><\/p>\n<p><span style=\"font-weight: 400\">This record is useful when a website or online service gives you a hostname to use. You can point your subdomain to that hostname instead of entering an IP address yourself.<\/span><\/p>\n<p><span style=\"font-weight: 400\">So, to reiterate, a CNAME record points to another name, not directly to an IP address. Also, a standard CNAME cannot share its name with other record types.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400\">\n<h2><span class=\"ez-toc-section\" id=\"MX_Record_Directing_Email_to_the_Right_Server\"><\/span><span style=\"font-weight: 400\">MX Record: Directing Email to the Right Server<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400\">MX stands for mail exchange. This is a record type that tells <\/span><i><span style=\"font-weight: 400\">other<\/span><\/i><span style=\"font-weight: 400\"> email services where to deliver emails for <\/span><i><span style=\"font-weight: 400\">your <\/span><\/i><span style=\"font-weight: 400\">domain. It specifies the server that will handle the emails.<\/span><\/p>\n<p><span style=\"font-weight: 400\">So, let\u2019s say your email address is:<\/span><\/p>\n<p><span style=\"font-weight: 400\">hello@example.com<\/span><\/p>\n<p><span style=\"font-weight: 400\">In this case, the domain is:<\/span><\/p>\n<p><span style=\"font-weight: 400\">example.com<\/span><\/p>\n<p><span style=\"font-weight: 400\">Then you need to create an MX record that specifies which server all email directed at hello@example.com should be sent to.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Without MX records, the emails wouldn\u2019t be able to find their destination and never reach you.\u00a0<\/span><\/p>\n<p><b>MX record<\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Type<\/b><\/td>\n<td><b>Name<\/b><\/td>\n<td><b>Priority<\/b><\/td>\n<td><b>Mail Server<\/b><\/td>\n<td><b>TTL<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">MX<\/span><\/td>\n<td><span style=\"font-weight: 400\">example.com<\/span><\/td>\n<td><span style=\"font-weight: 400\">10<\/span><\/td>\n<td><span style=\"font-weight: 400\">mail.example.com<\/span><\/td>\n<td><span style=\"font-weight: 400\">3600<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400\">A domain can have multiple MX records. An MX record can have \u201cpriority\u201d values. These dictate which server should be preferred for receiving emails. The server with higher priority typically handles most emails, while the lower priority server only works when there is too much load on the higher priority one.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Incorrect MX records can stop you from receiving emails. If messages are missing or bouncing back, checking these records is a useful first step.<\/span><\/p>\n<p><span style=\"font-weight: 400\">You can use an<\/span><a href=\"https:\/\/iplocation.io\/mx-lookup\"> <span style=\"font-weight: 400\">MX Lookup<\/span><\/a><span style=\"font-weight: 400\"> tool to check which mail servers a domain lists and review their priority values. This can help you spot missing or incorrect mail settings.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400\">\n<h2><span class=\"ez-toc-section\" id=\"TXT_Record_Storing_Text_for_Verification_and_Security\"><\/span><span style=\"font-weight: 400\">TXT Record: Storing Text for Verification and Security<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400\">TXT records are special DNS records that can have literally any kind of value. They are typically used for domain verification and email security.<\/span><\/p>\n<p><span style=\"font-weight: 400\">For example, if you are hiring a 3rd party email service provider (ESP) for your domain, they will give you a specific TXT record to add to your domain so that they can verify it&#8217;s yours.<\/span><\/p>\n<p><b>TXT record<\/b><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Type<\/b><\/td>\n<td><b>Name<\/b><\/td>\n<td><b>Value<\/b><\/td>\n<td><b>TTL<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">TXT<\/span><\/td>\n<td><span style=\"font-weight: 400\">example.com<\/span><\/td>\n<td><span style=\"font-weight: 400\">\u201cv=spf1 include:_spf.example.com ~all\u201d<\/span><\/td>\n<td><span style=\"font-weight: 400\">3600<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400\">Aside from that, TXT records like SPF, DKIM, and DMARC help protect your domain against spoofing and improve email deliverability. Here\u2019s what each record does:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><b>SPF:<\/b><span style=\"font-weight: 400\"> Lists which servers can send email for your domain.<\/span><\/li>\n<li style=\"font-weight: 400\"><b>DKIM:<\/b><span style=\"font-weight: 400\"> Helps mail servers check that an email has a valid digital signature.<\/span><\/li>\n<li style=\"font-weight: 400\"><b>DMARC:<\/b><span style=\"font-weight: 400\"> Tells receiving mail servers how to handle messages that fail certain email checks.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">These settings can help reduce email spoofing, where someone sends messages that appear to come from your domain.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Check_DNS_Records_for_a_Domain\"><\/span><span style=\"font-weight: 400\">How to Check DNS Records for a Domain<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">As you can see, DNS records do important things for a website. So, you can\u2019t mess around with them. When publishing records for your domain, you have to be extra careful and precise.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Even after they are published, you need to keep an eye on them via DNS lookups. You do not need to be a network expert to do DNS lookups. Online lookup tools can easily show you the records that are publicly available for a domain.<\/span><\/p>\n<p><span style=\"font-weight: 400\">A<\/span><a href=\"https:\/\/dnschecker.org\/all-dns-records-of-domain.php\"> <span style=\"font-weight: 400\">DNS record lookup<\/span><\/a><span style=\"font-weight: 400\"> tool can help you review different record types in one place. Enter a domain name and inspect the results to see its DNS setup.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Here are a few things to check:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><b>A record:<\/b><span style=\"font-weight: 400\"> Does the domain point to the expected IP address?<\/span><\/li>\n<li style=\"font-weight: 400\"><b>CNAME record:<\/b><span style=\"font-weight: 400\"> Does the alias point to the correct hostname?<\/span><\/li>\n<li style=\"font-weight: 400\"><b>MX record:<\/b><span style=\"font-weight: 400\"> Are the expected mail servers listed?<\/span><\/li>\n<li style=\"font-weight: 400\"><b>TXT record:<\/b><span style=\"font-weight: 400\"> Are the required verification and email security values present?<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">You should check these things after you make changes such as updating records, switching hosts, or switching domains.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Final_Thoughts\"><\/span><span style=\"font-weight: 400\">Final Thoughts<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">A, CNAME, MX, and TXT records each serve a different purpose. A records connect domain names to IPv4 addresses, CNAME records create aliases, MX records direct email, and TXT records store verification and security data.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Knowing how these records work makes it easier to manage a domain and fix common problems. When you need to check a website&#8217;s setup or troubleshoot email delivery, a DNS lookup can give you useful details without requiring complex network tools.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u201cDNS is the backbone of the internet.\u201d Anyone who has studied networking has heard this. But why is DNS called that? The reason is that&#8230;<\/p>\n","protected":false},"author":212,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[270],"tags":[],"class_list":["post-25233","post","type-post","status-publish","format-standard","hentry","category-digital-marketing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Understanding DNS Records: A, CNAME, MX, and TXT Explained - Lite14 Tools &amp; Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lite14.net\/blog\/2026\/11\/03\/understanding-dns-records-a-cname-mx-and-txt-explained\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding DNS Records: A, CNAME, MX, and TXT Explained - Lite14 Tools &amp; Blog\" \/>\n<meta property=\"og:description\" content=\"\u201cDNS is the backbone of the internet.\u201d Anyone who has studied networking has heard this. 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