
Lag Notifier
Lightweight HUD mod that shows server lag in ticks.
About this Mod
Lag Notifier

Versions 1.21.9 and above require mod menu to function for configuration.
I will test every version moving forward to ensure stable releases. Please note that future updates will not be as frequent or fast. Thank you for your patience! Also, please avoid using release 1.0.4 as it causes crashes; it remains available only for archival purposes.
Lag Notifier keeps you aware of performance issues in Minecraft by displaying real-time tick information directly on your HUD. No more guessing when the game stutters — instantly see how long it has been since the last tick and react accordingly.
Features
- Real-time lag detection – Shows the time since the last server tick so you can spot lag as it happens.
- Customizable HUD – Fully configurable position, scale, colors, and background to match your setup.
- Color-coded severity – Instantly recognize minor, moderate, and severe lag with clear visual cues.
- Enhanced readability – Shadowed text and background options ensure visibility in any environment.
- Client-side only – Lightweight, safe, and requires no server-side installation.
Getting Started
- Install the mod using the Fabric Loader.
- Launch Minecraft and configure the HUD in the in-game settings menu.
- By default, lag notifications appear in the top-left corner of your screen.
Why Use Lag Notifier?
Lag can disrupt building, combat, and redstone contraptions. With Lag Notifier, you’ll always know when the game is struggling, helping you adapt and make smarter gameplay decisions.
Stop guessing. Start seeing. Never be caught off-guard by lag again!
Available Versions
How to Install Lag Notifier 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 (26.1).
Install Mod
Open the mod browser in the dashboard and search for "Lag Notifier". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1, 1.21.11, 1.21.10 (+2 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Lag Notifier 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 (26.1). You can switch loaders with one click in the panel.
Is Lag Notifier compatible with fabric?
Lag Notifier officially supports fabric for Minecraft 26.1, 1.21.11, 1.21.10. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Lag Notifier – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Lag Notifier 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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