Domain Blacklist Operations Playbook for Short Links
Operational rules for managing domain blacklists without breaking legitimate traffic.
Updated: February 26, 2026
Blacklist goals
A blacklist should reduce abuse quickly while keeping legitimate traffic stable.
The key is predictable rule scope, clear expiry, and traceable actions.
1. Rule design
- Store canonical domain only (no protocol, no path).
- Support temporary and permanent rules.
- Require reason and author for every rule.
2. Apply safely
- Preview matched links before deletion.
- Use bulk purge only for high-confidence domains.
- Show user-facing blocked-domain message for quarantined destinations.
3. Reduce false positives
- Prefer exact domain match before keyword heuristics.
- Review high-volume domains manually before permanent block.
- Expire temporary rules automatically unless renewed.
4. Audit and reporting
- Track created, deleted, and restored links by rule.
- Log who added or removed each blacklist entry.
- Review weekly: top blocked domains, false-positive rate, recovery time.
Conclusion
Blacklist operations work best when they are explicit, reversible, and measurable.