How to Clear Your DNS Cache

How to clear your DNS cache

Flush your local DNS cache on Windows or macOS to fix browsing problems after a site moves to a new IP address.

If your website has recently moved to a different IP address, your local DNS cache may still point to the old one, causing the site to appear unavailable. Clearing that cache usually fixes the problem straight away.

Windows 10 and 11

Press Win+X to open the quick-access menu.
Click Terminal (Admin) or Command Prompt (Admin).
Run the following command:

ipconfig /flushdns

Windows 7 and 8

Press the Start button, type cmd, then press Enter.
In the Command Prompt window, run:

ipconfig /flushdns

macOS

Open Launchpad and search for Terminal.
Open the Terminal application.
Run the following two commands in order, pressing Enter after each:

dscacheutil -flushcache
sudo killall -HUP mDNSResponder

When prompted, enter your Mac admin password and press Enter.

If flushing the cache does not help

Try these steps in order:

Clear your browser cache as well, since browsers cache DNS results independently.
Restart your internet router - routers often cache DNS responses and a reboot clears them.
If neither step works, your Internet Service Provider (ISP) may have cached the old IP address. ISP caches can take up to 4 hours to expire on their own.

To confirm the issue is not on the server itself, ask a friend on a different ISP to check whether the site loads for them. You can also contact the Kualo support team and ask us to check the site from multiple locations.

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