Google has recently added a new security feature to Gmail which lets users track their recent sessions and also allows them to sign out remotely.
Technically speaking, this new layer of information will let Gmail users track all recent activity on their Gmail account which indeed is an excellent new security measure.
A new line in footer now tells you about your last account activity and also notifies if your account is open simultaneously on any other location.
Clicking on details will launch a popup which gives you statistics about your recent account activity in detail. It tells you about the access type (browser, device etc), IP address and Date/Time.
Pressing the “Sign out all other sessions” button will remotely sign out your Gmail account from all other machines except the current one.