Frictionless Anti-Raid & Spam Defense for Discord.
Real-time join velocity tracking, behavioral scoring, automated history purges, and zero-day heuristic detection. Keeping your server secure 24/7 with zero CAPTCHA friction.
Built for speed, accuracy, and quiet protection.
Real-Time Join Velocity & Raid Mode
Tracks join speed spikes and automatically adjusts watch windows and sensitivity to halt coordinated raid surges instantly.
Behavioral Scoring Engine
Analyzes links, invite links, mass mentions, and message bursts in real time rather than relying on rigid keyword lists.
Normalization & String Hashing
Normalizes unicode, zero-width spaces, and domain structures to neutralize zero-day evasive spam waves on the fly.
Anti-Nuke & Snapshot Recovery
Monitors audit logs for mass channel or role deletions and restores lost server structures automatically from saved snapshots.
Automated Message Purging
Executes paced softbans to purge raider history cleanly across multiple channels simultaneously without triggering Discord API rate limits or leaving residual spam.
How ZeroHour evaluates traffic safely.
Ingress & Join Velocity
New arrivals enter temporary watch windows where join rate anomalies automatically scale heuristic sensitivity.
Text Normalization
Strips obfuscation tricks like zero-width characters, invisible padding, and homoglyph symbol replacements.
Behavioral Scoring
Calculates dynamic risk weights based on mention density, link frequency, and message repetition across channels.
Targeted Softban Queue
Threats exceeding threshold limits trigger sub-second softbans to wipe message histories without manual intervention.
Three steps to full security.
Invite ZeroHour
Authorize the bot using the official Discord link to add it to your server.
Grant Permissions
Ensure Audit Log, Manage Roles, Ban Members, and Manage Messages permissions are assigned.
Position Bot Role
Place ZeroHour's role above standard member roles and let the heuristics run automatically.