
Online Detector
Online Detector adds a few new Blocks found in the redstone category, that will allow you to keep track of who is online on a server.
Screenshots

About this Mod


Online Detector is a Mod that was made to help manage machinery and or Redstone contraptions on servers. The Mod adds a new Block Called Online Detector and an advanced version of it, that comes with a GUI in which you can choose the player you want it to be bound to. The intended use of the Mod is on servers, as the purpose of the Online Detector Block is to output a Redstone signal while the Player its bound to is online.

The Forge version of this Mod, does not have any dependencies.
The Fabric version of this Mod, has the following dependencies:
- Required: (Fabric API, Cloth Config API)
- Optional: (Mod Menu)
The Quilt version of this Mod, has the following dependencies:
- Required: (Quilted Fabric API, Cloth Config API)
- Optional: (Mod Menu)



Q: Can I use this Mod in my Modpack
A: Yes absolutely! Feel free to use my Mods in your Modpacks.
Q: Can you update the Mod to version [x]
A: I always try to keep my Mods up to date, so if there hasn't been an update it simply means I haven't had time to work on it!
Q: Can you backport the Mod to version [x]
A: No I will not backport my Mods, old versions are versions of the past and I wont go out of my way to support them!
Available Versions
How to Install Online Detector on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.4).
Install Mod
Open the mod browser in the dashboard and search for "Online Detector". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.4, 1.20.3, 1.20.2 (+11 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Online Detector server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.4). You can switch loaders with one click in the panel.
Is Online Detector compatible with fabric and forge and quilt?
Online Detector officially supports fabric, forge, quilt for Minecraft 1.20.4, 1.20.3, 1.20.2. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Online Detector – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Online Detector consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Online Detector with just one click on your server.