https://lasso360.com/blog/ Practitioner writing on geofencing advertising for conferences, events and real estate. en-us Fri, 21 Aug 2026 18:35:14 +0000 https://lasso360.com/blog/advertise-to-past-conference-attendees https://lasso360.com/blog/advertise-to-past-conference-attendees Fri, 21 Aug 2026 00:00:00 +0000 Historical geofencing lets you build an audience from a venue on dates that have already passed. Here is how it works, how far back it reaches, and where it fails.