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
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+
