We offer few quality products, listed below
The best* anticheat on the market. Supporting Minecraft: 1.8-1.13. Firefly is one of the most advanced anticheats ever created, it utilizes an intelligent alert system and features high customizable level while maintaining simplicity. The anticheat can detect 99% of all combat, movement, connection and world cheats while also preventing cheats from even being used. The anticheat does not require protocollib and is extremely light-weight, meaning that it will not cause any extra lag on your server.
nSpigot (Not Purchasable)
A multithreaded spigot which offers outstanding stability and performance implements. It allows to handle nearly infinite amount of player due to it's ability to spread across the load through all the CPU cores. It also has various combat improvements such as customizable knockback and improved hit detection. The spigot has also improved vanilla commands such as tps which allow you to track down what is causing lag instantly.