CoreDefender
CoreDefender is built for server owners who want stability under real player load.
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CoreDefender
CoreDefender
Serious Anti-Lag & Anti-Crash Protection for Paper/Spigot 1.18+
CoreDefender is built for server owners who want stability under real player load. It detects and destroys lag machines fast, blocks abuse patterns, and keeps your TPS safe without heavy overhead.
Why server owners choose CoreDefender Instant lag-machine neutralization (before TPS drops too far) Advanced detection for real-world machine patterns Low overhead, TPS-aware limits, async-first design Clear admin alerts with one-click teleport to the incident Practical admin tools via GUI and commands
Detection coverage Redstone lag loops and high-frequency clock abuse Hopper transfer loops and container throughput abuse Entity spam (ArmorStand, projectile, minecart/vehicle patterns, etc.) TNT / falling-block abuse Chunk abuse and suspicious chunk-loading behavior
Admin experience `/lagshield` GUI panel Live TPS and detection stats Chunk cleanup action Detection logs in chat Clickable [TP] alert button to jump directly to detected coordinates
Commands Code (Text):
/lagshield /lagshield reload /lagshield stats /lagshield toggle /lagshield tp <world> <x> <y> <z>
Permissions Code (Text):
coredefender.admin coredefender.notify
Installation Drop the .jar into `/plugins` Restart server Adjust `config.yml` and `messages.yml` Open `/lagshield` and monitor alerts
Compatibility Java 17+ Paper / Spigot 1.18+