{"id":812,"date":"2019-02-03T14:34:42","date_gmt":"2019-02-03T14:34:42","guid":{"rendered":"https:\/\/www.copahost.com\/blog\/?p=812"},"modified":"2026-06-03T15:23:42","modified_gmt":"2026-06-03T15:23:42","slug":"what-does-dns-stand-for","status":"publish","type":"post","link":"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/","title":{"rendered":"What Does DNS Stand For? How It Works, Types &amp; Examples"},"content":{"rendered":"\n<p class=\"western wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">DNS stands for Domain Name System (<a href=\"https:\/\/tools.ietf.org\/html\/rfc2929\" target=\"_blank\" rel=\"noopener noreferrer\">RFC 2929<\/a>). It is an internet service by which human-readable domain names (eg- www.abz.com ) are located and translated into machine-readable IP addresses (eg- 50.16.85.103). As an example, DNS may be considered as a phone directory. <\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"western wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">When we ask what does DNS stand for, we must keep in mind that it holds crucial information about the domain names. These <a href=\"https:\/\/www.copahost.com\/blog\/what-is-a-domain-name\/\">domain names<\/a> comprise of &#8211; email servers (MX records) and email validation protocols&nbsp;(DKIM, SPF, DMARC), TXT record verification, and SSH fingerprints. Thus, DNS works by keeping a record of every device that accesses the internet as per their IP addresses. For example, the basic DNS definition is a server that answers to your browser what is the IP address of a domain name.<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 ez-toc-wrap-center 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\"><\/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:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#How_does_DNS_work\" title=\"How does DNS work?\">How does DNS work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#DNS_Record_Types_Explained\" title=\"DNS Record Types Explained\">DNS Record Types Explained<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#What_is_DNS_Propagation\" title=\"What is DNS Propagation?\">What is DNS Propagation?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#How_to_Check_DNS_Records\" title=\"How to Check DNS Records\">How to Check DNS Records<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#What_is_DNS_Cache\" title=\"What is DNS Cache?\">What is DNS Cache?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#DNS_Security_What_is_DNSSEC\" title=\"DNS Security: What is DNSSEC?\">DNS Security: What is DNSSEC?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#How_to_Change_DNS_Servers\" title=\"How to Change DNS Servers\">How to Change DNS Servers<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#Changing_DNS_servers_for_your_domain_pointing_to_a_new_host\" title=\"Changing DNS servers for your domain (pointing to a new host)\">Changing DNS servers for your domain (pointing to a new host)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#Changing_DNS_servers_on_your_computer_or_router\" title=\"Changing DNS servers on your computer or router\">Changing DNS servers on your computer or router<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#What_is_a_dynamic_DNS_server\" title=\"What is a dynamic DNS server\">What is a dynamic DNS server<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#Frequently_Asked_Questions_about_DNS\" title=\"Frequently Asked Questions about DNS\">Frequently Asked Questions about DNS<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n\n\n\n<p class=\"western wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: x-large;\">DNS definition: What does DNS stand for in networking<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"western wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">In terms of networking, DNS stands for <a href=\"https:\/\/www.copahost.com\/blog\/how-to-buy-a-domain-name\/\">Domain Name<\/a> System (some may also call Domain Name Server). Both are correct DNS definitions. Whenever a user makes a visit to a website, the web browser &#8220;asks&#8221; the ISP what is the IP address of the domain name. A simple question? Yes, quite. The internet TCP\/IP protocol works only by IP addresses. So, a domain name is just like a &#8220;front end&#8221; to an IP address of a server.<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Certainly, the DNS system in networking is necessary to establish all the communications between servers.<\/p>\n\n\n\n<h4 class=\"wp-block-heading western\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: x-large;\"><b>What does DNS stand for in computing<\/b><\/span><\/span><\/span><\/h4>\n\n\n\n<p class=\"western wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">In computing terms, DNS is an internet-based naming system used for converting the alphabetic names of web-based services into numerical forms, known as IP addresses. DNS naming system is used in networks operating on TCP\/IP protocol. It identifies the computers and services through easy to use names.<\/span><\/span><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_does_DNS_work\"><\/span>How does DNS work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The DNS protocol works just like querying a specific domain name for its IP address. This is called &#8220;DNS Lookup&#8221;. Whenever you try to open a <a href=\"https:\/\/www.copahost.com\/blog\/domain-vs-url\/\">URL<\/a> in your web browser, it will query the DNS records for the IP address of the domain name (with a DNS Lookup). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Then, the DNS server tells your browser the IP address of the <a href=\"https:\/\/www.copahost.com\/blog\/what-is-web-server\/\">web server<\/a>. And finally, the browser establishes a connection with the webserver using this IP and asks for the specific content of the file and path of the requested URL.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"721\" height=\"346\" src=\"https:\/\/www.copahost.com\/blog\/wp-content\/uploads\/2019\/01\/blog-how-dns-works-1.jpg\" alt=\"What does DNS stand for?\" class=\"wp-image-830\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Above all, 99% of internet traffic is based on the TCP\/IP protocol. This protocol only &#8220;talks&#8221; from IP to IP. A domain name (or a subdomain) is like a beautiful &#8220;front end&#8221; to make things easier for the customer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, imagine if there weren&#8217;t DNS Servers in the world. Every store would give you a business card with their IP address just like: &#8220;185.15.43.160&#8221;.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"896\" height=\"1164\" src=\"https:\/\/www.copahost.com\/blog\/wp-content\/uploads\/2019\/02\/blog-without-dns-ip-address.jpg\" alt=\"example of a world without dns\" class=\"wp-image-835\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DNS_Record_Types_Explained\"><\/span>DNS Record Types Explained<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DNS records are instructions stored in DNS servers that tell the internet how to handle requests for your domain. Each record type serves a specific purpose. Here are the most common ones:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A Record (Address Record)<\/strong> The most basic DNS record. It maps a domain name to an IPv4 address. For example, it tells the browser that <code>copahost.com<\/code> points to <code>185.15.43.160<\/code>. Every domain needs at least one A record to be accessible on the internet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>AAAA Record (IPv6 Address Record)<\/strong> Works exactly like the A record, but maps a domain to an IPv6 address instead. IPv6 addresses are longer and look like <code>2001:0db8:85a3:0000:0000:8a2e:0370:7334<\/code>. As the internet transitions to IPv6, this record becomes increasingly important.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>CNAME Record (Canonical Name Record)<\/strong> Points one domain name to another domain name instead of an IP address. It is commonly used for subdomains. For example, <code>www.copahost.com<\/code> can be set as a CNAME pointing to <code>copahost.com<\/code>, so both addresses lead to the same site.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>MX Record (Mail Exchange Record)<\/strong> Defines which mail servers are responsible for receiving emails for your domain. Without a properly configured MX record, emails sent to your domain will not be delivered. Most domains have more than one MX record, with priority values that determine which server is tried first.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>TXT Record (Text Record)<\/strong> Stores text-based information associated with a domain. It is widely used for domain ownership verification and email authentication protocols such as SPF, DKIM and DMARC \u2014 which help prevent spam and phishing attacks sent in your domain&#8217;s name.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>NS Record (Name Server Record)<\/strong> Indicates which DNS servers are authoritative for your domain \u2014 in other words, which servers hold the official DNS records for it. When you register a domain and point it to a hosting provider, you are updating the NS records.<\/p>\n\n\n\n<table style=\"width: 100%; border-collapse: collapse; font-family: sans-serif; font-size: 15px; margin: 24px 0;\">\n  <thead>\n    <tr style=\"background-color: #1a73e8; color: #ffffff;\">\n      <th style=\"padding: 14px 20px; text-align: left; border-radius: 8px 0 0 0;\">Record<\/th>\n      <th style=\"padding: 14px 20px; text-align: left;\">Purpose<\/th>\n      <th style=\"padding: 14px 20px; text-align: left; border-radius: 0 8px 0 0;\">Example<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr style=\"background-color: #f8f9fa;\">\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\"><strong>A<\/strong><\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\">Maps domain to IPv4<\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">copahost.com \u2192 185.15.43.160<\/td>\n    <\/tr>\n    <tr style=\"background-color: #ffffff;\">\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\"><strong>AAAA<\/strong><\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\">Maps domain to IPv6<\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">copahost.com \u2192 2001:db8::1<\/td>\n    <\/tr>\n    <tr style=\"background-color: #f8f9fa;\">\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\"><strong>CNAME<\/strong><\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\">Maps domain to another domain<\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">www \u2192 copahost.com<\/td>\n    <\/tr>\n    <tr style=\"background-color: #ffffff;\">\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\"><strong>MX<\/strong><\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\">Defines mail servers<\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">mail.copahost.com<\/td>\n    <\/tr>\n    <tr style=\"background-color: #f8f9fa;\">\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\"><strong>TXT<\/strong><\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\">Stores text info<\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">SPF, DKIM, DMARC<\/td>\n    <\/tr>\n    <tr style=\"background-color: #ffffff;\">\n      <td style=\"padding: 12px 20px;\"><strong>NS<\/strong><\/td>\n      <td style=\"padding: 12px 20px;\">Defines authoritative DNS servers<\/td>\n      <td style=\"padding: 12px 20px; font-family: monospace;\">ns1.copahost.com<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_DNS_Propagation\"><\/span>What is DNS Propagation?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DNS propagation is the time it takes for a DNS change to spread across all servers on the internet. When you update a DNS record, the change does not take effect instantly \u2014 it can take anywhere from a few hours to 48 hours for everyone worldwide to see the updated version.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We have a complete guide explaining how DNS propagation works and how to monitor it: <a href=\"https:\/\/www.copahost.com\/blog\/dns-propagation\/\">What is DNS Propagation and how long does it take?<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Check_DNS_Records\"><\/span>How to Check DNS Records<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Checking DNS records is useful when troubleshooting email delivery issues, verifying domain configuration or confirming that a DNS change has propagated. There are several ways to do it:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Using an online tool<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The easiest method is to use a web-based DNS lookup tool. Some reliable options are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/mxtoolbox.com\/DNSLookup.aspx\">MXToolbox<\/a><\/strong> \u2014 checks all record types with detailed output<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/dnschecker.org\">DNSChecker.org<\/a><\/strong> \u2014 shows propagation status from multiple locations worldwide<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.whatsmydns.net\">whatsmydns.net<\/a><\/strong> \u2014 useful for checking if a DNS change has propagated globally<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Simply enter your domain name, select the record type you want to check and run the lookup.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Using the command line<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">For more technical users, DNS records can be checked directly from the terminal:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>On Linux or macOS:<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"CSS\" data-shcb-language-slug=\"css\"><span><code class=\"hljs language-css\"><span class=\"hljs-selector-tag\">dig<\/span> <span class=\"hljs-selector-tag\">copahost<\/span><span class=\"hljs-selector-class\">.com<\/span> <span class=\"hljs-selector-tag\">A<\/span>\n<span class=\"hljs-selector-tag\">dig<\/span> <span class=\"hljs-selector-tag\">copahost<\/span><span class=\"hljs-selector-class\">.com<\/span> <span class=\"hljs-selector-tag\">MX<\/span>\n<span class=\"hljs-selector-tag\">dig<\/span> <span class=\"hljs-selector-tag\">copahost<\/span><span class=\"hljs-selector-class\">.com<\/span> <span class=\"hljs-selector-tag\">TXT<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">CSS<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">css<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p class=\"wp-block-paragraph\"><strong>On Windows (Command Prompt):<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">nslookup copahost.com\nnslookup -type=MX copahost.com<\/code><\/span><\/pre>\n\n\n<p class=\"wp-block-paragraph\">These commands return the current DNS records directly from the authoritative name server, which is useful for verifying changes before they fully propagate.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_DNS_Cache\"><\/span>What is DNS Cache?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DNS cache is a temporary storage of DNS lookup results kept by your browser, operating system or internet provider. Its purpose is to speed up browsing \u2014 instead of querying the DNS server every time you visit a website, your device reuses the result it already has stored locally.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Every cached record has a TTL (Time to Live) that determines how long it stays valid. Once the TTL expires, the cache is cleared and a fresh DNS lookup is performed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why does DNS cache matter?<\/strong> DNS cache is usually invisible and helpful. However, it can cause problems when DNS records change \u2014 for example, when migrating a website to a new server. Your device may keep loading the old IP address from cache even after the DNS has been updated globally.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How to clear DNS cache:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On <strong>Windows<\/strong>:<\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">ipconfig \/flushdns<\/code><\/span><\/pre>\n\n\n<p class=\"wp-block-paragraph\">On <strong>macOS<\/strong>:<\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder<\/code><\/span><\/pre>\n\n\n<p class=\"wp-block-paragraph\">On <strong>Linux<\/strong>:<\/p>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">sudo systemd-resolve --flush-caches<\/code><\/span><\/pre>\n\n\n<p class=\"wp-block-paragraph\">On <strong>Google Chrome<\/strong>, you can also clear the browser DNS cache by visiting:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">chrome:<span class=\"hljs-comment\">\/\/net-internals\/#dns<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"DNS_Security_What_is_DNSSEC\"><\/span>DNS Security: What is DNSSEC?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DNSSEC (Domain Name System Security Extensions) is a set of security protocols designed to protect the DNS system from attacks. It adds a layer of cryptographic verification to DNS responses, ensuring that the answer your browser receives actually comes from the legitimate authoritative DNS server \u2014 and has not been tampered with in transit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why is DNS security important?<\/strong> Without DNSSEC, DNS is vulnerable to a type of attack called <strong>DNS spoofing<\/strong> (or DNS cache poisoning), where a malicious actor injects fake DNS records into a resolver&#8217;s cache. This can redirect users from a legitimate website to a fraudulent one without them knowing \u2014 a technique commonly used in phishing attacks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How does DNSSEC work?<\/strong> DNSSEC works by digitally signing DNS records using public-key cryptography. When a DNS resolver receives a response, it verifies the digital signature against a public key stored in the DNS. If the signature does not match, the response is rejected.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Should you enable DNSSEC for your domain?<\/strong> Yes, if your domain registrar and hosting provider support it. DNSSEC adds a meaningful layer of protection, especially for domains used for business email or e-commerce transactions where impersonation attacks are a real risk.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Change_DNS_Servers\"><\/span>How to Change DNS Servers<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Changing DNS servers can improve your internet speed, security or reliability. You may want to switch from your ISP&#8217;s default DNS to a faster public DNS server, or update your domain&#8217;s DNS to point to a new hosting provider.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Changing_DNS_servers_for_your_domain_pointing_to_a_new_host\"><\/span>Changing DNS servers for your domain (pointing to a new host)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is done through your domain registrar&#8217;s control panel. The process updates your NS records to point to a different hosting provider:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Log in to your domain registrar account<\/li>\n\n\n\n<li>Find your domain and access its DNS settings<\/li>\n\n\n\n<li>Locate the <strong>Name Servers (NS)<\/strong> section<\/li>\n\n\n\n<li>Replace the current name servers with the ones provided by your new hosting provider (e.g. <code>ns1.copahost.com<\/code> and <code>ns2.copahost.com<\/code>)<\/li>\n\n\n\n<li>Save the changes and wait for DNS propagation (up to 48 hours)<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Changing_DNS_servers_on_your_computer_or_router\"><\/span>Changing DNS servers on your computer or router<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This changes which DNS server your device uses to resolve domain names \u2014 useful for improving speed or bypassing restrictions:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>On Windows:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Go to <strong>Control Panel \u2192 Network and Internet \u2192 Network Connections<\/strong><\/li>\n\n\n\n<li>Right-click your connection and select <strong>Properties<\/strong><\/li>\n\n\n\n<li>Select <strong>Internet Protocol Version 4 (TCP\/IPv4)<\/strong> and click <strong>Properties<\/strong><\/li>\n\n\n\n<li>Select <strong>Use the following DNS server addresses<\/strong> and enter your preferred DNS (e.g. Google&#8217;s <code>8.8.8.8<\/code> and <code>8.8.4.4<\/code>)<\/li>\n\n\n\n<li>Click <strong>OK<\/strong> to save<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>On macOS:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Go to <strong>System Settings \u2192 Network<\/strong><\/li>\n\n\n\n<li>Select your active connection and click <strong>Details<\/strong><\/li>\n\n\n\n<li>Go to the <strong>DNS<\/strong> tab<\/li>\n\n\n\n<li>Click <strong>+<\/strong> to add a new DNS server address<\/li>\n\n\n\n<li>Click <strong>OK<\/strong> and then <strong>Apply<\/strong><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Popular public DNS servers to consider:<\/strong><\/p>\n\n\n\n<table style=\"width: 100%; border-collapse: collapse; font-family: sans-serif; font-size: 15px; margin: 24px 0;\">\n  <thead>\n    <tr style=\"background-color: #1a73e8; color: #ffffff;\">\n      <th style=\"padding: 14px 20px; text-align: left; border-radius: 8px 0 0 0;\">Provider<\/th>\n      <th style=\"padding: 14px 20px; text-align: left;\">Primary DNS<\/th>\n      <th style=\"padding: 14px 20px; text-align: left; border-radius: 0 8px 0 0;\">Secondary DNS<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr style=\"background-color: #f8f9fa;\">\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\"><strong>Google<\/strong><\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">8.8.8.8<\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">8.8.4.4<\/td>\n    <\/tr>\n    <tr style=\"background-color: #ffffff;\">\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\"><strong>Cloudflare<\/strong><\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">1.1.1.1<\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">1.0.0.1<\/td>\n    <\/tr>\n    <tr style=\"background-color: #f8f9fa;\">\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0;\"><strong>Quad9<\/strong><\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">9.9.9.9<\/td>\n      <td style=\"padding: 12px 20px; border-bottom: 1px solid #e0e0e0; font-family: monospace;\">149.112.112.112<\/td>\n    <\/tr>\n    <tr style=\"background-color: #ffffff;\">\n      <td style=\"padding: 12px 20px;\"><strong>OpenDNS<\/strong><\/td>\n      <td style=\"padding: 12px 20px; font-family: monospace;\">208.67.222.222<\/td>\n      <td style=\"padding: 12px 20px; font-family: monospace;\">208.67.220.220<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h4 class=\"wp-block-heading western\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: x-large;\">Examples of domain name translating in a private DNS Server<\/span><\/span><\/span><\/h4>\n\n\n\n<p class=\"western wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">Every time a user enters the domain name, DNS service translates it into the corresponding IP address. For a better understanding let&#8217;s explain.<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"western wp-block-paragraph\">For instance, a user enters the domain<span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\"> name<\/span><\/span><\/span><b> <\/b><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">&#8220;howstuffworks.com&#8221; in his\/her browser. Soon after that, a request is made to the DNS server for resolving the domain name into an <\/span><\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">Internet Protocol (IP) address <\/span><\/span><\/span><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">such as 70.42.251.42. This is how the process of DNS name resolution keeps on processing whenever it encounters a domain name.<\/span><\/span><\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading western\"><span class=\"ez-toc-section\" id=\"What_is_a_dynamic_DNS_server\"><\/span><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: x-large;\"><b>What is a dynamic DNS server<\/b><\/span><\/span><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"western wp-block-paragraph\"><span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\">Dynamic DNS (or DDNS) is a service that automatically updates your hostname with the current IP address of a server or a computer. This way, the dynamic DNS keeps on monitoring the IP addresses of your connection. Then, if the DDNS server detects any changes in your IP, then it automatically updates your DNS&#8217;s A (IPv4) or AAAA (IPv6) records.<\/span><\/span><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is useful for people who have an internet connection with a dynamic IP address (which changes every week, month or so..). By using a dynamic DNS server (or DDNS Server), you can have a permanent subdomain, always pointing to your current IP address. The dynamic DNS services stand for a system where the IP is often updated, where you use your subdomain whenever you need, and it will always point to your current IP&#8230; So, no matter if it changes!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There are some dynamic DNS services like <a href=\"https:\/\/www.noip.com\" target=\"_blank\" rel=\"noopener noreferrer\">No-ip.com<\/a> and <a href=\"https:\/\/www.dynu.com\" target=\"_blank\" rel=\"noopener noreferrer\">Dynu.com<\/a>.<span style=\"color: #000000;\"><span style=\"font-family: Liberation Serif, serif;\"><span style=\"font-size: large;\"><br><\/span><\/span><\/span><\/p>\n\n\n\n<section id=\"faq\">\n  <h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_about_DNS\"><\/span>Frequently Asked Questions about DNS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n  <div itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n    <h4 itemprop=\"name\">Is DNS the same as IP address?<\/h4>\n    <div itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n      <p itemprop=\"text\">No. An IP address is the actual numerical address of a server on the internet, such as 185.15.43.160. DNS is the system that translates human-readable domain names like copahost.com into those IP addresses. Think of DNS as the translator and the IP address as the destination.<\/p>\n    <\/div>\n  <\/div>\n\n  <div itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n    <h4 itemprop=\"name\">What happens if DNS fails?<\/h4>\n    <div itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n      <p itemprop=\"text\">If DNS fails, your browser will be unable to resolve domain names into IP addresses, which means websites will become inaccessible even if the servers hosting them are working perfectly. You may see errors like &#8220;DNS server not responding&#8221; or &#8220;This site can&#8217;t be reached&#8221;. Switching to a public DNS server like Google (8.8.8.8) or Cloudflare (1.1.1.1) can often resolve the issue.<\/p>\n    <\/div>\n  <\/div>\n\n  <div itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n    <h4 itemprop=\"name\">What is the default DNS server?<\/h4>\n    <div itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n      <p itemprop=\"text\">By default, your device uses the DNS server provided by your Internet Service Provider (ISP). This varies depending on your provider and location. While ISP DNS servers are functional, they are often slower and less secure than public alternatives like Google DNS (8.8.8.8) or Cloudflare DNS (1.1.1.1).<\/p>\n    <\/div>\n  <\/div>\n\n  <div itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n    <h4 itemprop=\"name\">Can I use any DNS server I want?<\/h4>\n    <div itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n      <p itemprop=\"text\">Yes. You are free to change your DNS server to any public DNS provider at any time, both on your device and on your router. Popular options include Google (8.8.8.8), Cloudflare (1.1.1.1) and Quad9 (9.9.9.9). Each offers different benefits in terms of speed, privacy and security.<\/p>\n    <\/div>\n  <\/div>\n\n  <div itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n    <h4 itemprop=\"name\">Does changing DNS affect my speed?<\/h4>\n    <div itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n      <p itemprop=\"text\">Yes, it can. DNS resolution is one of the first steps your browser takes when loading a website. A faster DNS server means slightly faster page load times, especially on the first visit to a site. Cloudflare (1.1.1.1) is widely considered the fastest public DNS server, while Google (8.8.8.8) and Quad9 (9.9.9.9) are also significantly faster than most ISP defaults.<\/p>\n    <\/div>\n  <\/div>\n\n  <div itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n    <h4 itemprop=\"name\">Is DNS the same as a domain name?<\/h4>\n    <div itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\">\n      <p itemprop=\"text\">No. A domain name is the human-readable address of a website, such as copahost.com. DNS (Domain Name System) is the infrastructure that makes domain names work \u2014 it is the system responsible for translating domain names into IP addresses so browsers can load the correct website.<\/p>\n    <\/div>\n  <\/div>\n\n<\/section>\n\n\n\n<script type=\"application\/ld+json\">\n[\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"Article\",\n    \"headline\": \"What Does DNS Stand For? How It Works, Types & Examples\",\n    \"description\": \"Learn what DNS stands for, how the Domain Name System works, the difference between public and private DNS servers, DNS record types, and how to change your DNS settings.\",\n    \"image\": \"https:\/\/www.copahost.com\/blog\/wp-content\/uploads\/2019\/01\/blog-how-dns-works-1.jpg\",\n    \"author\": {\n      \"@type\": \"Person\",\n      \"name\": \"Gustavo Bastos\"\n    },\n    \"publisher\": {\n      \"@type\": \"Organization\",\n      \"name\": \"Copahost\",\n      \"logo\": {\n        \"@type\": \"ImageObject\",\n        \"url\": \"https:\/\/www.copahost.com\/blog\/wp-content\/uploads\/copahost-logo.png\"\n      }\n    },\n    \"datePublished\": \"2019-02-03\",\n    \"dateModified\": \"2024-10-31\",\n    \"mainEntityOfPage\": {\n      \"@type\": \"WebPage\",\n      \"@id\": \"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/\"\n    }\n  },\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"HowTo\",\n    \"name\": \"How to Change DNS Servers\",\n    \"description\": \"Step-by-step guide to changing DNS servers on Windows, macOS and through your domain registrar.\",\n    \"step\": [\n      {\n        \"@type\": \"HowToStep\",\n        \"position\": 1,\n        \"name\": \"Log in to your domain registrar\",\n        \"text\": \"Access your domain registrar account and navigate to the DNS settings for your domain.\"\n      },\n      {\n        \"@type\": \"HowToStep\",\n        \"position\": 2,\n        \"name\": \"Locate the Name Servers section\",\n        \"text\": \"Find the Name Servers (NS) section in your domain's DNS settings panel.\"\n      },\n      {\n        \"@type\": \"HowToStep\",\n        \"position\": 3,\n        \"name\": \"Replace the current name servers\",\n        \"text\": \"Enter the new name servers provided by your hosting provider, such as ns1.copahost.com and ns2.copahost.com.\"\n      },\n      {\n        \"@type\": \"HowToStep\",\n        \"position\": 4,\n        \"name\": \"Save the changes\",\n        \"text\": \"Confirm and save the new name server settings. DNS propagation may take up to 48 hours to complete globally.\"\n      },\n      {\n        \"@type\": \"HowToStep\",\n        \"position\": 5,\n        \"name\": \"Change DNS on your device (optional)\",\n        \"text\": \"On Windows, go to Network Connections, open IPv4 Properties and enter your preferred DNS address such as 8.8.8.8 for Google or 1.1.1.1 for Cloudflare. On macOS, go to System Settings, select Network, open DNS settings and add the new DNS server address.\"\n      }\n    ]\n  },\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Is DNS the same as IP address?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"No. An IP address is the actual numerical address of a server on the internet, such as 185.15.43.160. DNS is the system that translates human-readable domain names like copahost.com into those IP addresses.\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"What happens if DNS fails?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"If DNS fails, your browser will be unable to resolve domain names into IP addresses, making websites inaccessible even if their servers are working. Switching to a public DNS server like Google (8.8.8.8) or Cloudflare (1.1.1.1) can often resolve the issue.\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"What is the default DNS server?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"By default, your device uses the DNS server provided by your Internet Service Provider (ISP). While functional, ISP DNS servers are often slower and less secure than public alternatives like Google DNS (8.8.8.8) or Cloudflare DNS (1.1.1.1).\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Can I use any DNS server I want?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Yes. You are free to change your DNS server to any public DNS provider at any time, both on your device and on your router. Popular options include Google (8.8.8.8), Cloudflare (1.1.1.1) and Quad9 (9.9.9.9).\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Does changing DNS affect my speed?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Yes, it can. A faster DNS server means slightly faster page load times. Cloudflare (1.1.1.1) is widely considered the fastest public DNS server, while Google (8.8.8.8) and Quad9 (9.9.9.9) are also significantly faster than most ISP defaults.\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Is DNS the same as a domain name?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"No. A domain name is the human-readable address of a website, such as copahost.com. DNS (Domain Name System) is the infrastructure that translates domain names into IP addresses so browsers can load the correct website.\"\n        }\n      }\n    ]\n  }\n]\n<\/script>\n\n\n\n<div style=\"background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%); border-radius: 12px; padding: 40px 32px; text-align: center; margin: 40px 0;\">\n  <h4 style=\"color: #ffffff; font-size: 24px; margin: 0 0 12px 0;\">Get your website online today<\/h4>\n  <p style=\"color: #e3f2fd; font-size: 16px; margin: 0 0 28px 0;\">Copahost web hosting plans include fast DNS management, free SSL, and 24\/7 support \u2014 everything you need to get your domain up and running in minutes.<\/p>\n  <a href=\"https:\/\/www.copahost.com\/web-hosting\" style=\"display: inline-block; background-color: #ffffff; color: #1a73e8; font-weight: 700; font-size: 16px; padding: 14px 32px; border-radius: 8px; text-decoration: none;\">See Web Hosting Plans<\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>DNS stands for Domain Name System (RFC 2929). It is an internet service by which human-readable domain names (eg- www.abz.com ) are located and translated into machine-readable IP addresses (eg- 50.16.85.103). As an example, DNS may be considered as a phone directory. When we ask what does DNS stand for, we must keep in mind [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[126],"tags":[],"class_list":["post-812","post","type-post","status-publish","format-standard","hentry","category-hosting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Does DNS Stand For? How It Works, Types &amp; Examples - Copahost<\/title>\n<meta name=\"description\" content=\"Learn what DNS stands for, how the Domain Name System works, the difference between public and private DNS, and why it&#039;s essential for every website\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Does DNS Stand For? How It Works, Types &amp; Examples - Copahost\" \/>\n<meta property=\"og:description\" content=\"Learn what DNS stands for, how the Domain Name System works, the difference between public and private DNS, and why it&#039;s essential for every website\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/\" \/>\n<meta property=\"og:site_name\" content=\"Copahost\" \/>\n<meta property=\"article:published_time\" content=\"2019-02-03T14:34:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-03T15:23:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.copahost.com\/blog\/wp-content\/uploads\/2019\/01\/blog-how-dns-works-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"721\" \/>\n\t<meta property=\"og:image:height\" content=\"346\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Gustavo Gallas\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Gustavo Gallas\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.copahost.com\/blog\/what-does-dns-stand-for\/\"},\"author\":{\"name\":\"Gustavo Gallas\",\"@id\":\"https:\/\/www.copahost.com\/blog\/#\/schema\/person\/386b3f1f79299d43f4ceb33d26428246\"},\"headline\":\"What Does DNS Stand For? 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