# \#session

**URL:** https://forum.builder.io/tag/session/85.md

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## [Understanding Builder Cookies - Duration and Expiration](https://forum.builder.io/t/understanding-builder-cookies-duration-and-expiration/6762)

<div class="topic-metadata">

**Author:** [@manish-sharma](https://forum.builder.io/u/manish-sharma)\
**Replies:** 4\
**Last updated:** [March 11, 2025, 8:22pm UTC](https://forum.builder.io/t/understanding-builder-cookies-duration-and-expiration/6762 "2025-03-11T20:22:21Z")

</div>

Below is a general overview of the key cookies used in Builder and how long they persist: 1. builderSessionId Duration: 30 minutes Details: This cookie expires 30 minutes after the last event is collected. It’s used to…