Link filter

The link filter checks messages using the saved settings and can apply your chosen sanctions.

Configure and verify

Sign in, select the server and open Protection and select Edit beside Link protection. April needs Kick Members and Ban Members for protection processing, along with permissions for the chosen action. Enable the filter, set its options, review global and filter role/channel permissions, choose Delete and/or Warn, then save. See Protection overview for setup and recovery.

The API default whitelist contains https://aprilbot.me; saved lists can differ. The Worker recognizes explicit http, https and ftp URLs and compares hosts. Built-in Discord hosts are exempt. A nonempty whitelist allows its hosts and blocks other recognized hosts; otherwise a nonempty blacklist blocks its hosts; with both empty, recognized non-exempt hosts match. For example, whitelisting https://example.org allows that host. This is not a guarantee that every link form is detected.

The local edit form shows settings before saving; the filter was disabled.

In an authorized test channel, try a harmless example on each side of the boundary and inspect the protection log and actual Discord outcome. Saved settings do not prove delivery or deletion. If the filter does not match, check its enabled state, permissions, exclusions and earlier matching filters. For a false positive, disable or adjust the rule and restore content manually if appropriate. Review automated actions before enabling escalation and messages before relying on warnings.