Connecting your custom domain to Google Sites involves several steps to ensure your website is accessible via your personalized web address. Here’s how you can do it:

1. Purchase a Custom Domain: 

First, if you don’t already have a custom domain, you need to purchase one from a domain registrar such as Google Domains, GoDaddy, Namecheap, or any other domain provider.

2. Access Google Sites Settings

• Open your Google Site.

• Click on the “Settings” icon (gear icon) located in the upper right corner.

• In the Settings menu, select “Custom domains.”

3. Start Domain Setup

• Click on “Start setup.”

• Google Sites will prompt you to select your domain provider. If your domain is registered with Google Domains, the process is streamlined. Otherwise, you’ll select “Use a domain from a third-party provider.”

4. Verify Domain Ownership

• For third-party domains, you need to verify ownership. Google Sites provides a TXT record that you need to add to your domain’s DNS settings:

• Log in to your domain registrar's website.

• Find the DNS settings section for your domain.

• Add a new TXT record with the value provided by Google Sites.

• Save the DNS settings.

5. Add CNAME Records

• To direct traffic from your custom domain to your Google Site, you need to add CNAME records:

• In your domain registrar’s DNS settings, add a CNAME record with the following details:

• Name/Host/Alias: Enter the subdomain you want to connect (e.g., www).

• Value/Points to/Destination: Enter ghs.googlehosted.com.

6. Set Up Redirects (Optional)

• If you want your site to be accessible without "www" (e.g., http://yourdomain.com), set up a redirect:

• Add a new A record in the DNS settings with the following details:

• Name/Host/Alias: Leave it blank or enter "@".

• Value/Points to: Enter the IP addresses provided by your registrar (usually Google provides a set of four IP addresses).

7. Confirm Setup in Google Sites

• Return to Google Sites and click “Next” after adding the necessary DNS records.

• Google will verify the DNS changes. This process might take a few minutes to up to 48 hours due to DNS propagation.

• Once verified, Google Sites will confirm the successful connection of your custom domain.

8. Publish Your Site

After the custom domain is successfully connected, make sure your Google Site is published. Any changes in DNS settings might take some time to propagate fully.

By following these steps, you can seamlessly connect your custom domain to your Google Site, providing a professional web presence with a personalized URL.