Free Stream Check for Streamers: What LagZero Reads and the Setting It Hands You
A free check that ends with one setting to change
Delithius LagZero is Stream Stability for Twitch, YouTube, Kick, TikTok Live and Zeus. It reads your stream setup and hands you the exact setting to change. The check is free. The live page says there is no account and no card, and you can run it as often as you like. It works on your phone or your streaming PC.
You stay in charge of your setup. LagZero hands you the setting, you make the change in OBS, Streamlabs or your platform, and then you run the check again.
How to run it
- Open the check. Go to lagzero.delithiuslabs.ai on your phone or your streaming PC.
- Choose where you stream. Pick Twitch, YouTube, Kick, TikTok Live, Zeus or Other.
- Fill in what you know. Add your upload speed from a speed test and your video bitrate from your OBS output, along with the other fields you have.
- Run the check and read the result. Change the setting it hands you, then run the check again.
This guide is for streamers who want a clear fix for a stream that stutters or drops frames, and for platforms weighing a creator-facing tool.
What the check looks at
The free check covers eight parts of your stream. These are the check names and what each one covers, as the live LagZero page shows them:
- Audio: the audio buffer and how sound lines up with the picture.
- Encoder: how your stream is encoded on your machine.
- Ingest: the ingest server your stream points at.
- Keyframe: your keyframe interval.
- Process: background apps sharing your processor.
- Resolution: resolution and frame rate.
- Upload: your bitrate and your real upload speed.
- Wi-Fi: Wi-Fi and jitter.
A blank field is fine. Fill in what you have, and LagZero tells you what to measure next. A clean process list reads as clear in the Process check, and so do Ethernet or Wi-Fi checked clean in the Wi-Fi check. The form asks where you stream, your upload speed, your video bitrate, your encoder, your resolution and frame rate, your keyframe interval, your audio, your ingest server, your background apps and your connection.
What you receive
You receive the exact setting to change, in plain words. Each check hands back the setting for its part of your stream. When every setting is changed, the result reads: "The stream is holding."
Wi-Fi is written down on every result and carries no promise. The result states where Wi-Fi stands, and the call stays yours. Ethernet, or Wi-Fi checked clean, reads as clear.
The live page also says your answers go to the LagZero engine, come back as your result, and are not stored.
After the check
Run the check again after each change. LagZero reads the new setup and hands you the next setting, until every one of the eight checks reads clear. The free check stays open, so you can come back whenever your setup changes, such as a new encoder, a new resolution or a different ingest server.
Platforms covered
LagZero covers Twitch, YouTube, Kick, TikTok Live and Zeus. Where you stream is the first question on the form.
Each platform also publishes its own advice, and those pages are the source for that platform's limits and recommendations. The Delithius LagZero page lists the official help pages for Twitch and YouTube with the date Delithius Labs checked each one (2026-10-16). Read the platform's advice beside your result.
For platforms: the LagZero Platform License for your creators
Platforms can license Delithius LagZero for their own creators. The LagZero Platform License has two prices:
- Help price: $2,500 paid once, plus a 5% running royalty, with a $0 minimum. It covers one creator or one team on its own streams, for a one-year term.
- Full price: $25,000 a year, plus a 5% running royalty and a $10,000 Minimum Annual Royalty. It is for streaming platforms and renews each year through Stripe.
The license helps your creators stream with confidence. The engine runs server-side and stays sealed with Delithius Labs, and licensees use the live LagZero engine. Read the LagZero Platform License Agreement before you pay. For streamer partners, the LagZero page lists a partner program: contact Delithius Labs through the page.
Run the free check at lagzero.delithiuslabs.ai.
Quick answers
How do I fix stream lag on Twitch or YouTube?
Run the free LagZero stream check at lagzero.delithiuslabs.ai. It reads your stream setup and hands you the exact setting to change. Make the change in OBS, Streamlabs or your platform, then run the check again. Twitch and YouTube each publish their own advice too.
Is the LagZero stream check free?
Yes. The LagZero stream check is free and open to everyone. The live page says no account and no card are asked for.
Which platforms does LagZero cover?
LagZero covers Twitch, YouTube, Kick, TikTok Live and Zeus.
What does a LagZero result look like?
A result names the exact setting to change, in plain words. Wi-Fi is written down on every result and carries no promise. When every setting is changed, the result reads "The stream is holding."
Can a platform license LagZero for its creators?
Yes. The LagZero Platform License is $2,500 paid once at the help price or $25,000 a year at the full price. Read the agreement at delithiuslabs.com/license-terms/lagzero/.
Delithius Labs LLC, Goldsboro, North Carolina. Written and checked against the live site on October 16, 2026; prices on the product pages control.