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Table of Contents
How to clear DNS cache in Chrome
Do I need to clear the operating system's DNS cache at the same time?
Applicable scenarios for clearing DNS cache
Home Computer Tutorials Browser How to clear DNS cache in Google Chrome

How to clear DNS cache in Google Chrome

Jul 08, 2025 am 12:33 AM

To clear the DNS cache of Google Chrome, you need to use its built-in page. The specific steps are as follows: 1. Open the Chrome browser; 2. Enter chrome://net-internals/#dns in the address bar; 3. Click the "Clear host cache" button. Since Chrome uses system-level DNS cache, the operating system cache should also be cleared if necessary: ??Windows users use the ipconfig /flushdns command, macOS users use the sudo killall -HUP mDNSResponder command, and Linux users use the corresponding commands depending on the distribution. This method is suitable for scenarios such as website migration, access errors, or custom DNS rule modifications. Frequent cleanup may affect loading efficiency and is recommended when problems occur.

How to clear DNS cache in Google Chrome

Google Chrome itself does not maintain a standalone DNS cache, but it uses an operating system-level DNS cache. If you encounter loading exceptions, page jump errors when browsing web pages, or visiting old versions of the website content, there may be problems with the DNS cache. It is necessary to clear the DNS cache at this time.

How to clear DNS cache in Google Chrome

How to clear DNS cache in Chrome

Although Chrome does not have its own DNS cache system, you can clear the DNS cache information it uses through a special page inside the browser.

How to clear DNS cache in Google Chrome

The operation steps are as follows:

  • Open Google Chrome
  • Enter in the address bar: chrome://net-internals/#dns
  • After entering this page, you will see a "Clear host cache" button
  • Click this button to clear the DNS cache used by the current browser

This method is suitable for quickly troubleshooting and solving some web access issues caused by local DNS cache.

How to clear DNS cache in Google Chrome

Do I need to clear the operating system's DNS cache at the same time?

Chrome uses system-level DNS cache, so sometimes even if you clear the cache in your browser, the problem may still exist. At this time, it is recommended that you also clean the DNS cache of the operating system:

  • Windows Users:

    • Open Command Prompt (CMD)
    • Enter the command: ipconfig /flushdns
    • Enter to execute
  • macOS user:

    • Open Terminal
    • Enter the command: sudo killall -HUP mDNSResponder
    • Enter your password and enter it
  • Linux users:

    • Depending on the specific distribution, common commands are:
      • sudo systemd-resolve --flush-caches
      • Or restart the network service

This ensures that DNS data is completely refreshed from the bottom of the system.


Applicable scenarios for clearing DNS cache

Here are some cases where clearing DNS cache is suitable:

  • After the website is migrated or replaced, the old IP address is still accessed
  • "Server not found" or "Connection timeout" appears when visiting certain websites
  • Custom DNS resolution rules are set up in the company or home network, and they need to take effect immediately after modification.

It should be noted that DNS cache is a mechanism designed to improve access speed, and frequent clearing may slightly affect web page loading efficiency.


Basically that's it. Chrome's DNS cache management is very simple, and it can effectively solve most of the access problems caused by DNS by cooperating with system-level operations.

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