A DNS cache or DNS resolver cache, is a temporary database of DNS lookups on the OS and browser. It consists of the records of recent as well as attempted visits of websites along with domains. To troubleshot cache poisoning or other internet connectivity issues, you may need to flush the DNS cache. The action will remove all the DNS entries. Besides, it also gets rid of invalid records. Let’s check out the way to clear the DNS cache on your Mac.
What does Clearing the DNS cache do?
How to clear the cache on your Mac without shortcuts. If your keyboard is having issues, or the command keys just aren't reliable anymore, you can still clear the cache on your Mac. Sometimes data, which is stored in the cache prohibits loading of up-to-date contents. When you delete the stored cache data, the new version can be retrieved. In many website related issues, the cache is the root of all evil. That's why your web developer/web designer or IT-Support first asks you to clear the cache before investigating further. How to clear cache files on Mac with a single click of a button. Instead of searching all over your Mac to find and remove cache files yourself, you can clear user caches on a Mac using CleanMyMac X. It makes removing cache files as easy as can be. To get rid of cache files with CleanMyMac X: Download CleanMyMac X (free) and launch it.
If you are having trouble accessing a website on your Mac, or if webpages do not load properly, clearing DNS cache will help. It also lets you correctly see the new version of a website, in case the site has recently moved its servers. It does so by clearing the outdated entries and fetching the new ones. Finally, regularly flushing DNS cache may also help in hiding search behavior and offer security against manipulation.
How to Flush DNS Cache on Mac
For macOS Catalina, Mojave, High Sierra, Sierra, and macOS El Capitan the command is the same.
- Open Terminal using Launchpad or Use Finder → Applications → Utilities, or Spotlight Search (Command+Space Bar) for this.
- Now, you need to enter the command given below.
sudo killall -HUP mDNSResponder
- Enter your Mac’s password and then press the enter key again.
Done! Now, you may have to wait for a few moments until the DNS cache is completely flushed out. Once it’s done, a verbal audio alert will confirm that the DNS cache is flushed on your Mac.
You have successfully cleared the DNS Cache on your Mac! Most likely, now you will have no trouble visiting websites or seeing webpages.
Clear DNS Cache in Older macOS versions
If you are using an older version of macOS, then here are the commands for those.
To clear DNS cache on macOS Yosemite, enter the following syntax:
sudo discoveryutil udnsflushcaches
To clear DNS cache on macOS Lion, Mountain Lion, and Mavericks, enter the following syntax:
sudo killall -HUP mDNSResponder
That’s all, folks.
Signing off…
Delete Cache Macos
Hopefully, getting rid of the DNS cache will no longer be a big deal for you. Additionally, if you like, you can also choose to clear DNS Cache only for the Google Chrome browser. For this enter chrome://net-internals/#dns in Chrome’s address bar. Next, click on Clear host cache.
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If you have any questions related to this, please toss it up in the comments below.
The founder of iGeeksBlog, Dhvanesh, is an Apple aficionado, who cannot stand even a slight innuendo about Apple products. He dons the cap of editor-in-chief to make sure that articles match the quality standard before they are published.
How Do I Clear Cache Mac
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