How to Publish Your Site
On your Google site, choose the button "Share with Others".
2. In "Links", set "Published site" as "Public".
3. Hit "Publish". You have to be a manager of the folder or the drive where you site belongs.
4. Name your site with your last name and first name combination.
RITSUMEI Taro → ritsumeitaro / ritsumei-taro
5. You can confirm your site and get the URL by "View published site".