Paste your Spark link
Get a plain-English diagnosis, ranked fixes labelled Safe, Test first or Risky, and a reply you can send. Free, read-only, no logins.
By continuing you agree to the terms and privacy notice. We keep the diagnosis, not your raw profile.
What you get
- A one-line verdict on what is slowing the server down.
- Causes ranked by cost, so you start with the biggest.
- Fixes labelled Safe, Test first or Risky, so you know what to try first and what to leave alone.
- A reply you can send to the player or customer who reported the lag.
How to get a Spark link
- Join your server and run
/spark profiler start --timeout 600while the lag is happening. - When it finishes, Spark prints a link. Paste it above.
Taking it at least half an hour after a restart, with players online, gives the most useful result. New to Spark? Read how to read a Spark report.
Common questions
Is the Spark report reader free?
Yes. The automatic report is free. If you want a person to check it, a human-checked Pirdel Review is a one-off paid option.
Does it need access to my server?
No. It reads a Spark profiler link and nothing else. It never asks for logins, passwords, RCON or panel access.
Which links work?
Links from spark.lucko.me, the Spark profiler viewer. Take the profile while the lag is happening, after the server has been running for a while.
What happens to my profile?
We keep the diagnosis and a few facts about the server, not the raw profile. Reports can be opened by anyone with the link, so share it with care.
Does it work for games other than Minecraft?
Not yet. It starts with Minecraft servers and Spark profiles. Other games and profilers are planned.