{"id":5889,"date":"2025-09-30T14:21:44","date_gmt":"2025-09-30T14:21:44","guid":{"rendered":"https:\/\/iprovpn.com\/blog\/?p=5889"},"modified":"2025-10-01T10:04:26","modified_gmt":"2025-10-01T10:04:26","slug":"what-is-a-dns-cache-how-to-flush-dns-cache","status":"publish","type":"post","link":"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/","title":{"rendered":"What is a DNS Cache &#038; How to Flush DNS Cache?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">The computer&#8217;s repository for recently sent requests to DNS name servers is called the Domain Name System<\/span><a href=\"https:\/\/iprovpn.com\/blog\/dns-security\/\"><span style=\"font-weight: 400;\"> (DNS)<\/span><\/a><span style=\"font-weight: 400;\"> cache. When a user sends a complete DNS query, which includes A records and\/or MX records, the DNS cache stores the responses until the operating system or the browser causes them to expire. The initial visit to a website can take a few milliseconds or more than a minute when a visitor wants to see it. Nevertheless, if the user makes multiple visits, the procedure might just take a few milliseconds because the IP address won&#8217;t need to be looked up. After all, the website record has already been cached in the system&#8217;s DNS cache or the browser&#8217;s cache.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">        <div class=\"iprovpn_btn_cta_row\">\n    \t<a class=\"btn_cta\" href=\"https:\/\/iprovpn.com\/buy-vpn\" title=\"Get iProVPN Now\">Get iProVPN NOW <i class=\"fas fa-long-arrow-alt-right\"><\/i><\/a>\n    \t<\/div>\n    <\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 ez-toc-wrap-center counter-flat ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/div>\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: #000000;color:#000000\" 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: #000000;color:#000000\" 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'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#What_Is_A_DNS_Flush\" >What Is A DNS Flush?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Why_Flush_Your_DNS_Cache\" >Why Flush Your DNS Cache?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Avoid_DNS_Spoofing\" >Avoid DNS Spoofing<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Prevents_404_Errors\" >Prevents 404 Errors<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Delete_Previous_DNS_Data\" >Delete Previous DNS Data<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#How_to_Flush_Windows_DNS_Cache\" >How to Flush Windows&#8217; DNS Cache?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Flush_DNS_Cache_on_Windows_10_11\" >Flush DNS Cache on Windows 10 &amp; 11<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Flush_DNS_Cache_on_Windows_8\" >Flush DNS Cache on Windows 8<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#How_to_flush_DNS_cache_from_Browsers\" >How to flush DNS cache from Browsers?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Flush_DNS_Cache_on_Mozilla_Firefoxs\" >Flush DNS Cache on Mozilla Firefox&#8217;s<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Flush_DNS_Cache_on_Microsoft_Edges\" >Flush DNS Cache on Microsoft Edge&#8217;s\u00a0<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#How_to_Delete_the_DNS_Cache_from_the_Chrome_Web_Browser\" >How to Delete the DNS Cache from the Chrome Web Browser<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#How_to_Flush_DNS_Cache_on_Linux\" >How to Flush DNS Cache on Linux?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Summary\" >Summary<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/iprovpn.com\/resources\/what-is-a-dns-cache-how-to-flush-dns-cache\/#Start_Browsing_Privately\" >Start Browsing Privately!<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_A_DNS_Flush\"><\/span><b>What Is A DNS Flush?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The act of manually removing a DNS cache&#8217;s temporary entries is known as a DNS flush. If it isn&#8217;t cleared manually, the computer will clear it automatically in some time, which is also called TTL (Time to Live).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Typically, system-specific flush DNS command line programs are used to finish the deletion operation. For example, on Mac, you can simply do it from the terminal, by giving the command as per the Mac version you use. Similarly, on Windows, it is done from the Command Prompt by giving the command \u201cipconfig \/flushdns to flush DNS cache.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Flush_Your_DNS_Cache\"><\/span><b>Why Flush Your DNS Cache?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">There are a few good reasons to think about clearing the DNS cache. These are a handful.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Avoid_DNS_Spoofing\"><\/span><b>Avoid DNS Spoofing<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Malicious actors use a technique known as DNS spoofing or poisoning to gain access to your DNS cache. They can take you to malicious or spoof websites once they get access to it to steal your information. You can avoid that by cleaning up your DNS cache.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Prevents_404_Errors\"><\/span><b>Prevents 404 Errors<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Sometimes you access a website and it shows you a 404 error, which means that the page cannot be found, alos your device is providing the results from the older version of the site, and you need to flush DNS to get the updated results. Although the DNS cache helps websites work faster, to load the newer content on the site, you must flush the cache.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Delete_Previous_DNS_Data\"><\/span><b>Delete Previous DNS Data<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">You can find many DNS providers, including Google DNS and Open DNS. When you want to get the new DNS providers, you will still get the results from the previously stored data. To update this and to see only the new content, it\u2019s important for you to clear DNS cache.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Flush_Windows_DNS_Cache\"><\/span><b>How to Flush Windows&#8217; DNS Cache?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">If you are using the Windows operating system, then it becomes necessary to flush the DNS, here is how you can do it on Windows 10, 11 and 8.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Flush_DNS_Cache_on_Windows_10_11\"><\/span><b>Flush DNS Cache on Windows 10 &amp; 11<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Select Windows or the Start menu.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Next, navigate to Computer Systems &gt; Command Prompt, or use the search box to enter CMD (&#8220;Type here to search&#8221;).\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Enter the CMD command ipconfig \/flushdns and hit Enter after the CMD interface has opened.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The software ought to notify you that your DNS cache has been cleared. The Command Prompt can be closed after this is shown.<\/span><\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Flush_DNS_Cache_on_Windows_8\"><\/span><b>Flush DNS Cache on Windows 8<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">With the Windows 8 version, locating the command line interface is a little different.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Start by launching the Apps screen.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Select Windows Systems &gt; Command Prompt after that.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use the same ipconfig \/flushdns command as soon as the CMD opens.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After the procedure is finished, you ought to see a notification verifying that your local DNS cache has been emptied.<\/span><\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"How_to_flush_DNS_cache_from_Browsers\"><\/span><strong>How to flush DNS cache from Browsers?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Here is a detailed understanding of how to clear DNS cache on different browsers.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Flush_DNS_Cache_on_Mozilla_Firefoxs\"><\/span><b>Flush DNS Cache on Mozilla Firefox&#8217;s<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Because it only keeps resolved DNS entries in memory rather than on the hard drive, the Firefox browser functions somewhat differently from other browsers.It suggests that when your browser is closed, the DNS will be cleared on its own, and if your browser is opened and you don&#8217;t want it to clear, then you can clear DNS cache manually. However, you need to type the following command in the browser\u2019s search bar and then click the \u201cClear DNS cache\u201d button.<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">about: networking#dns<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Flush_DNS_Cache_on_Microsoft_Edges\"><\/span><b>Flush DNS Cache on Microsoft Edge&#8217;s\u00a0<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The same methods are found to flush DNS cache from <\/span><a href=\"https:\/\/www.google.com\/intl\/en_pk\/chrome\/\"><span style=\"font-weight: 400;\">Google Chrome<\/span><\/a><span style=\"font-weight: 400;\"> and<\/span><a href=\"https:\/\/www.microsoft.com\/en-us\/edge\/\"> <span style=\"font-weight: 400;\">Microsoft Edge<\/span><\/a><span style=\"font-weight: 400;\">, since both are built with the same Chromium systems. You just need to enter the following command and click the \u201cClear cache\u201d button.<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">\/net-internals\/#dns edge\u00a0<\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"How_to_Delete_the_DNS_Cache_from_the_Chrome_Web_Browser\"><\/span><b>How to Delete the DNS Cache from the Chrome Web Browser<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">It was mentioned earlier that your device\u2019s operating system and browser store DNS cache, so the site you access loads and works faster. However, later on, it can also cause issues. So youw ill ned to clear DNS cache from Chrome, simply enter the following command on teh search bar:<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\"> https:\/\/net-internals.com\/#dns\u00a0<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">To clear the DNS cache in Google Chrome, click the Clear Host Cache icon.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_to_Flush_DNS_Cache_on_Linux\"><\/span><b>How to Flush DNS Cache on Linux?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Clearing DNS cache on Ubuntu<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">It is useful to clear the DNS cache on Ubuntu and Linux, as it resolves many issues, such as loading problems on websites or overall performance issues. Here are the short steps for it:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Go to the Activities from the top left corner of the Search Bar, and type Terminal in it.<\/span><\/p>\n<p><strong>Enter the following command on the terminal:<\/strong><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Sudo systemd-resolve \u2013flush-caches<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">When you have entered the command, you have to enter the password, which will then flush the DNS cache on Ubuntu.<\/span><\/p>\n<p><strong>For another Linux version, enter this command on the terminal:<\/strong><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Sudo \/etc\/init.d\/dns-clean start<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">To proceed, enter your password.<\/span><\/p>\n<p><b>Is DNS Cache Flushing Safe?<\/b><\/p>\n<p><span style=\"font-weight: 400;\">It is safe to clear the DNS cache, yes. Some people worry about clearing their DNS cache or ask if doing so too often could have negative consequences. This could be the result of certain operating systems requiring administrator authorization or higher privileges to do so. However, you shouldn&#8217;t worry because it is safe and won&#8217;t damage your system or device.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Summary\"><\/span><strong>Summary<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">After you clear DNS cache, it can fix a lot of your operating system issues and errors, like a 404 error from your browser. There are different commands that you need to enter on the terminal, according to your operating system. After you flush DNS, the sites you access show you the updated content. It almost takes 48 hours to implement any changes for all the <\/span><a href=\"https:\/\/iprovpn.com\/resources\/best-dns-servers-for-gaming\/\"><span style=\"font-weight: 400;\">DNS servers<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">    \t<hr class=\"mt-5\">\n        <div class=\"custom_CTA mt-5\">\n            <div class=\"row\">\n                <div class=\"col-lg-7 align-self-center text-lg-left text-center\">\n                    <h3><span class=\"ez-toc-section\" id=\"Start_Browsing_Privately\"><\/span>Start Browsing Privately!<span class=\"ez-toc-section-end\"><\/span><\/h3>\n                    <p clas=\"mb-0\">iProVPN encrypts your data for protection against hackers and surveillance. Unblock your favorite streaming platforms instantly with the best VPN for streaming.<\/p>\n                <\/div>\n                <div class=\"col-lg-5 align-self-center text-center\">\n                    <a class=\"custom_btn_cta\" href=\"https:\/\/iprovpn.com\/buy-vpn\" title=\"Get iProVPN Now\">Get iProVPN NOW<\/a>\n                <\/div>\n            <\/div>\n    \t<\/div>\n    <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The computer&#8217;s repository for recently sent requests to DNS name servers is called the Domain Name System (DNS) cache. When a user sends a complete DNS query, which includes A records and\/or MX records, the DNS cache stores the responses until the operating system or the browser causes them to expire. The initial visit to [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":13911,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-5889","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-privacy-security"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is a DNS Cache &amp; How to Flush DNS Cache?<\/title>\n<meta name=\"description\" content=\"&quot;Learn about DNS cache, its importance, and how to flush it. 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