How can I tell when an eharmony member was last online?

You can see when an member was last active eharmony just below their photo. But everyone has the option to make themselves invisible to other members at any time.

If a member has not logged in for two months or more, we remove them from your Discover list.

The online right now feature lets you see which members are most likely to respond straight away to your messages. You can tell if a member is online by the small, green dot next to their picture.