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Clearing the DNS cache on a Mac can help resolve issues related to domain name resolution, such as problems accessing websites or seeing outdated content. Here’s how you can do it:

For macOS Ventura and Later

1. Open Terminal:

• You can find Terminal by going to Applications > Utilities > Terminal or by using Spotlight Search (press Command + Space and type “Terminal”).

1. Run the DNS Flush Command:

• Enter the following command and press Enter: sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
• You might be prompted to enter your administrator password.

1. Close Terminal:

• After running the command, you can close the Terminal window.

For macOS Monterey and Earlier

1. Open Terminal:

• Find it in Applications > Utilities > Terminal or use Spotlight Search.

1. Run the Appropriate DNS Flush Command:

• Depending on your version of macOS, use one of the following commands:
  • macOS Mojave and macOS Catalina:
  sudo killall -HUP mDNSResponder
  • macOS Sierra and macOS High Sierra:
  sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
  • macOS El Capitan:
  sudo dscacheutil -flushcache
• Enter your administrator password if prompted.

1. Close Terminal:

• After executing the command, you can close the Terminal window.

Additional Notes

• No Confirmation: There’s typically no confirmation message after flushing the DNS cache. If the command runs without errors, the cache has been cleared.
• Restarting: If you continue to have issues after clearing the DNS cache, try restarting your Mac or your router.

Clearing the DNS cache can help resolve various network-related issues and is a useful troubleshooting step when experiencing connectivity problems or outdated site content.