To clear or flush the DNS cache in Google Chrome, you can use the chrome://net-internals/#dns URL.
To do this, follow these steps:
Open Google Chrome and type chrome://net-internals/#dns in the address bar. This will open the Chrome Network Internals page.
In the "DNS" tab, click on the "Clear host cache" button. This will clear the DNS cache for all sites.
If you want to flush the DNS cache for a specific site, type the domain name in the "Flush cache for host:" field and click on the "Flush cache" button.
Note that clearing the DNS cache may cause some sites to load slower as the browser will need to perform a new DNS lookup for each site.