New Addon · Packet Protection

ShieldCore Packet Protection

Stops malicious and malformed packets that crash your Minecraft server from the inside. ShieldCore inspects every incoming packet and drops crash exploits before they ever reach your server — keeping it online when players try to take it down.

Note: this is in-game packet/exploit protection — not network DDoS mitigation.

malformed packets crash exploits packet floods book/NBT bombs
Shield My Server Get Support
Supports 1.8 – 1.21 · Spigot / Paper / Purpur / Folia · Java 17 & 21
Packet Inspection
Scans every inbound packet.
Crash Prevention
Drops crash exploits instantly.
Rate Limiting
Throttles packet floods per player.
Live Block Log
See what was blocked in real time.

What ShieldCore Blocks

Common in-game exploits players use to lag, freeze or crash a server — all neutralized before they hit your main thread.

Malformed Packets

Corrupt or out-of-spec packets crafted to crash the protocol decoder.

Book & NBT Bombs

Oversized book/sign/NBT payloads designed to exhaust server memory.

Packet Floods

Thousands of packets per tick from one client to stall the main thread.

Invalid Movement

Teleport/position spoof packets that desync or freeze the world.

Channel Exploits

Abusive plugin-message / custom-channel payloads used to crash forks.

Exploit Signatures

Known crash-tool signatures (e.g. crasher clients) matched and dropped.

Protection In Action

A live look at ShieldCore inspecting traffic and dropping malicious packets.

shieldcore — packet monitor

Simple Pricing

Monthly subscription. One activation code per account. Cancel anytime.

ShieldCore
$4.99 /mo
≈ 18 AED · 1800 fils
  • Netty-level packet inspection (no ProtocolLib)
  • Anti-crash: NBT / book / sign / payload exploits
  • Connection-flood & bot-swarm mitigation
  • All versions 1.8 – 1.21+ · Paper / Spigot / Purpur / Folia
  • Configurable mode: ban · kick · flag-only
  • Live dashboard: senders, packet types, % blocked, bans
Subscribe to ShieldCore

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FAQ Frequently Asked Questions

Everything you need to know about ShieldCore.

01Is this DDoS protection?+
No. ShieldCore protects against malicious in-game packets and crash exploits sent by connected players. Network-level DDoS is already mitigated separately at the edge on every LaxelHost server.
02Will it cause lag or false kicks?+
No. Inspection runs on the netty pipeline before packets hit the main thread, adding microseconds. Legitimate players are never affected — only malformed or abusive packets are dropped.
03Which versions are supported?+
Minecraft 1.8 through 1.21 on Spigot, Paper, Purpur and Folia, with builds for Java 17 and Java 21.
04How do I install it?+
Subscribe, paste your activation code into config.yml, drop the jar in your plugins folder and restart. Protection starts immediately.