how to identify the public web site is sharepoint online or on premise?

Question

I have SharePoint 2013 production site for which I have only read access. I would like to know whether it is sharepoint online or on premise. Please let me know the procedure to identify whether the site is online or onprem.

Answer 1

You should check the response headers for version number. Online would always have the latest version of SharePoint and currently, would be running the 16 version.

Check this: https://sergeluca.wordpress.com/2013/01/13/can-can-you-check-the-version-of-a-sharepoint-online-or-how-can-you-know-that-your-sharepoint-online-moved-to-2013/.

That way, even though URL might not indicate SharePoint online, the version number would give it away.