This article dives deep into the technical architecture, the strategic benefits, and the practical use cases of making your Session Replay data truly portable with PostHog. Before we unpack "portable," let's look at the status quo.

But what does "Portable Session Replay" actually mean? And why does it matter more than navigator.sendBeacon ?

Founders and engineers are tired of paying $500/month to store 30-day-old replays of login pages. They want to own their user interaction data just like they own their production logs.