Windows: Open Command Prompt as Administrator and run `ipconfig /flushdns`
Windows: Restart the DNS Client service if needed
macOS: Open Terminal and run `sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder`
Linux: Run `sudo systemd-resolve –flush-caches` or `sudo resolvectl flush-caches`
Linux: Restart the DNS service if needed, such as `sudo systemctl restart systemd-resolved`
Chrome: Open `chrome://net-internals/#dns` and click Clear host cache
Firefox: Open `about:networking#dns` and click Clear DNS Cache
Flush the router DNS cache by restarting the router
Flush the browser cache if DNS changes are not taking effect
Verify the cache was cleared by testing the domain again