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How to Clear DNS Cache on Chrome, Firefox and Safari

Posted on September 5, 2021 By blog_786 No Comments on How to Clear DNS Cache on Chrome, Firefox and Safari

How to Clear DNS Cache on Chrome, Firefox and Safari.

To reduce unnecessary DNS lookups, our computers and even our browsers keep cached copies of DNS records. Although they are updated or refreshed at regular intervals, it may be necessary to manually clear the DNS cache so that earlier cached resolutions can be removed and subsequent lookups based on the new DNS settings.

In this article, we’ll take a look at how to clear the DNS cache in your browser. When you exit the browser and restart it, the DNS cache is automatically cleared. Here’s how you can do this in the browser itself without closing or reopening it.

Read: How to Clear DNS Cache on Windows, macOS, Android and iOS

1. Chrome Clear DNS Cache

Once you’ve opened or worked on Chrome, here’s how to do it in Chrome.

Open a new tab and in the address bar enter the address: chrome: // net-internals / # dns

How to Clear DNS Cache on Chrome, Firefox and Safari

This should take you to a page that looks something like this, which shows everything about the stored DNS records.

Click “Clear Host Cache”.

How to Clear DNS Cache on Chrome, Firefox and Safari

Then you may need to clear the socket pools. For this

Open another new tab. Enter the address: chrome: // net-internals / # sockets.

How to Clear DNS Cache on Chrome, Firefox and Safari

This should lead you to a similar page with cached socket pools.

Click Flush Outlet Pools.

How to Clear DNS Cache on Chrome, Firefox and Safari

You are good to go.

2. Firefox Clear the DNS cache

The process is almost the same as Firefox, except that we need to change the value of two variables called network.dnsCacheExpiration and network.dnsCacheExpirationGracePeriod, instead of pressing a single button.

Open a new tab
Enter the address: about: config

You should see a warning page.

How to Clear DNS Cache on Chrome, Firefox and Safari

Click “I take the risk!”

Then you should be on a page with various Firefox variables and a search engine at the top.

How to Clear DNS Cache on Chrome, Firefox and Safari

Search for “network.dnsCacheExpiration”.

How to Clear DNS Cache on Chrome, Firefox and Safari

Two results should appear on the screen, namely network.dnsCacheExpiration and network.dnsCacheExpirationGracePeriod with values ​​of 60.

Now double-click the part of the value that says 60 and set it to 0.

How to Clear DNS Cache on Chrome, Firefox and Safari

Then reset both values ​​to 60 again.

How to Clear DNS Cache on Chrome, Firefox and Safari

Both of these variables basically store the TTL, or time to live, or essentially the expiration time for the DNS record, which is set to 60 by default. By changing it to 0, we ask Firefox to immediately clear the DNS cache, and then we need to reset it back to default.

If you don’t have these variables, don’t worry, just create two new integer variables with the same names and set the values ​​to 60, which are the default values, and follow the instructions above.

Right click to create integer variable

How to Clear DNS Cache on Chrome, Firefox and Safari

Set name

How to Clear DNS Cache on Chrome, Firefox and Safari

Set the value

How to Clear DNS Cache on Chrome, Firefox and Safari

3. Safari Flush DNS cache

In Safari, we can clear the cache using an option or even a shortcut. But first, we need to enable the Develop menu in the menu bar.

In Safari, go to Settings.

Press Command +,
Go to the Advanced section.
Check the option “Show design menu on menu bar”

How to Clear DNS Cache on Chrome, Firefox and Safari

You should now have a new design option on the menu bar.

How to Clear DNS Cache on Chrome, Firefox and Safari

Go to development. Click on “Empty Caches” or simply do it with the keyboard shortcut Option + Command + E

4. Opera clear the DNS cache

Clearing the DNS cache in Opera is very similar to clearing it in Chrome, except for the address; instead of “chrome” there will be “opera”.

Open a new tab in Opera and enter the address: opera: // net-internals / # dns

How to Clear DNS Cache on Chrome, Firefox and Safari

Click “Clear Host Cache” to clear the DNS cache.

You also need to clear the socket pool by clicking the sockets tab or

Enter the address: opera: // net-internals / # sockets and click on Flush Socket Pools.

How to Clear DNS Cache on Chrome, Firefox and Safari

When flushing the DNS cache from the system using the command line or terminal, most of the work we have to remember is that most browsers (eg Internet Explorer does not) also store a cache of DNS records and they must also be flushed for proper cleaning. So these were the ways to reset the DNS cache in various browsers.

Read: Best DNS Servers for Speed, Stability, and Security

How-To, Safari Tags:cache, Chrome, Chrome Clear DNS Cache, Clear, Firefox, Firefox and Safari, Firefox Clear the DNS cache, How to Clear DNS Cache on Chrome, Opera clear the DNS cache, Safari Flush DNS cache

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