Platform
Audit Log
Discord’s built-in record of administrative actions in a server. It retains entries for 45 days, after which Discord’s own record of what happened is gone.
The 45-day window is the structural reason third-party bots keep their own moderation history: after six and a half weeks the platform cannot tell you who deleted a channel or banned a member. Any tool offering longer history is storing it itself.
The audit log also does not record message content, only that an action occurred and by whom.