# How Discourse ID works

**URL:** <https://meta.discourse.org/t/how-discourse-id-works/379565>\
**Category:** Site Management\
**Tags:** discourse-id\
**Created:** [August 28, 2025, 3:59pm UTC](https://meta.discourse.org/t/how-discourse-id-works/379565 "2025-08-28T15:59:23Z")\
**Posts on this page:** 1\
**Showing post:** 21

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**Author:** ![mpalmer](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/mpalmer/32/45740_2.png) [@mpalmer](https://meta.discourse.org/u/mpalmer)\
**Post date:** [November 1, 2025, 3:38am UTC](https://meta.discourse.org/t/how-discourse-id-works/379565/21 "2025-11-01T03:38:45Z")

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Despite the topic title being “How Discourse ID works”, there doesn’t appear to be any details of how it _actually_ works – things like, what is the protocol between the Discourse site and IdP, what identifiers are passed, to what degree activity between sites can be correlated, and so on. I’ll have to know these sorts of things in order to be able to provide accurate guidance to the site admins I advise as to whether this option should be enabled on their sites.

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_[View the full topic](https://meta.discourse.org/t/how-discourse-id-works/379565)._