How do I log into my Google Sites?
First, Make sure you are already signed in to the correct Google account, one which is an editor or owner of the Google Site.
Use the link above or directly visit sites.google.com
Select your site to launch Google Sites website creator and hosting editor
I can't find my site in order to login
If you can't find your site that could be several different reasons:
You aren't logged in to a site editor or owner holding Google account
Your site was deleted. This could have done by you or someone else with access to the Google Sites file in Google Drive. Check your trash to see if it's there.
Your Google Site was moved or your permissions were revoked.
Your site was taken down by a Google Workspace admin (only applies if the site was created in a Google Workspace domain).
I can't access my site to edit it
If you can't edit your Google website, then confirm you are using a desktop computer because there is no mobile experience for developing Google Sites. Here are the available access points to a site:
sites.google.com which is the dashboard and landing page for this Google app
drive.google.com which hosts Google Sites as files
the published Google Sites web address will show an editing pencil icon the bottom right (this login method doesn't not work when visiting the custom domain address). Published sites have two different formats: sites.google.com/view/... and sites.google.com/[workspace.com]/... There is also a trick where you can search in the website source code to discover the published URL. View page source and use the find shortcut for sites.google.com
Google Sites dashboard screen