SharedTrust
A cross-community trust registry — show an account's standing across all of Reddit before they post.
Why mods have wanted this forever
A bad actor banned in 30 subreddits is still "unknown" to the 31st.
Repeat offenders cycle through
Every community re-discovers the same troll, one incident at a time.
AutoMod can't see across subs
AutoMod only sees activity in your subreddit — it has no cross-community memory.
Shared ban lists are manual
Today's workaround is wikis, spreadsheets, and Discord pins. SharedTrust automates it.
What SharedTrust does
A shared reputation network with privacy built in.
Network-wide standing
Every post and comment is checked against the shared ledger before it's live.
Privacy-preserving
Accounts are keyed by a salted SHA-256 fingerprint — no usernames or attribution are ever shared.
Severity ladder
Filter → remove → report → temp-ban, applied automatically.
Transparency & appeals
Authors are told why content was held (tier + score, never communities) and can appeal.
Network effects
Every install makes the ledger smarter for every other community.
Mod-alerts
Discord or Slack webhook alerts for high-severity actions.
How it works
Communities contribute anonymized signals; SharedTrust scores and enforces.
Unknown / low trust
No meaningful network flags — content stays up.
Elevated flags
Filtered to the mod queue for review.
Many flags
Removed as spam and reported.
Critical
Removed, reported, and the author is temp-banned.
How to use it
Three steps to a smarter, shared defense.
Install
Install SharedTrust to a subreddit you moderate and approve its mod permissions.
Configure
Set your threshold, action policy, and spread floor in the settings form.
Contribute & protect
Your bans and removals feed the network — and the network protects you in return.
Help & FAQ
Common questions, answered.
Is my data shared with other subreddits?
No. Only aggregate counts travel — never usernames, content, or which communities flagged an account.
How do I reduce false positives?
Raise the threshold, raise the spread floor, or whitelist trusted users.
How do appeals work?
Authors reply to the notice to appeal. SharedTrust re-scores them and auto-restores if below threshold.
How do I contribute signals?
Automatically on bans/removals, or manually with the "Flag user" menu action.
Want SharedTrust for your subreddit?
Tell us your community and we'll help you set up the thresholds and spread floor.