TL;DR: Simulcast means broadcasting one live video to multiple platforms at the same time. Some people call it multistreaming, and the terms are close enough to use interchangeably in most contexts. This guide explains what simulcast means and why it helps almost any live stream. It also covers how to set it up in YoloCast. You can push a single YoloCast broadcast to up to 30 destinations at once. That list includes YouTube, Facebook, Twitch, and custom RTMP platforms.
Your audience is not all in one place. Some watch on YouTube, some check Facebook first, and others only ever open Twitch. If your stream only goes to one of those platforms, you are choosing which part of your audience to skip.
Simulcast solves this by sending your stream to every platform at once, instead of picking just one. It is an old broadcasting term with a new job. It keeps a live video in sync across YouTube, Facebook, Twitch, and anywhere else your viewers already are.
In this guide, we will explain what simulcast actually means. We will also cover why it is worth setting up for almost any live stream, and how to do it inside YoloCast. Finally, we will cover a detail that trips a lot of people up. Simulcasting through YoloCast works differently than simulcasting straight from a YoloBox on its own.
What Is Simulcast?
Simulcast is short for “simultaneous broadcast.” It means sending one live video to multiple platforms or channels at the same time. Your audience can then watch on whichever one they already use. Most people in live streaming use “simulcast” and “multistreaming” to mean the same thing.
The term did not start with online video. Radio and television stations used simulcasting decades before streaming existed, airing the same broadcast on both formats at once. The idea carried over directly. One broadcast goes out to several destinations, with no extra production work for each one.
Technically, some people draw a finer line. Simulcast means the exact same content everywhere. Multistreaming, on the other hand, can include small differences per platform, like a different overlay or sponsor message. In everyday use, though, almost everyone treats the two words as interchangeable, and this guide does too.
Why Is Simulcasting Useful for a Live Stream?
Simulcasting solves a simple problem: your audience is spread across platforms, and you only have one stream to give them. Reaching viewers on the platform they already prefer is the main draw of simulcasting, without any extra production work for most creators and businesses.
It also acts as a safety net. If one platform has an outage or a technical hiccup, your stream keeps running everywhere else. You are not betting an entire event on a single platform staying online.
There is a cost side too. Producing a separate stream for every platform takes time and often extra hardware. Simulcasting removes that. You go live once, and every platform receives the same feed at the same time.
How Do You Simulcast With YoloCast?
To simulcast with YoloCast, add your platforms on the Destinations page. You can connect YouTube, Facebook, and Twitch directly, or add any other platform using its RTMP address. Then select those destinations when you create your live event. Click Go Live to stream to all of them at once.
Here is the full process, step by step:
- Go to the Destinations page in YoloCast. This is where every platform you plan to simulcast to gets added and stored for future streams.
- Add YouTube, Facebook, or Twitch directly. Click Add Platform and connect your account. YoloCast handles the login and authorization for you.
- Add any other platform using RTMP. Click RTMP(s), then paste in the stream URL and stream key from that platform. Give it a name so you can find it later.
- Create your live event and select your destinations. Choose every platform you want this specific stream to reach, from Facebook Groups to a custom RTMP endpoint.
- Click Go Live. YoloCast sends one feed out to every destination you selected, all at the same time.
💡 Pro Tip: Name each RTMP destination clearly, like “Website Player” or “Church Facebook Group,” the first time you add it. With up to 30 possible destinations, a messy list gets confusing fast.
Is There a Difference Between Simulcasting on YoloBox Alone and Through YoloCast?
Yes, and it catches a lot of people off guard. A YoloBox running multi-streaming mode on its own supports up to 6 destinations at a time （YoloBox Ultra / YoloBox Extreme: Up to 6 destinations ——Landscape mode: 3 platforms + 3 SRT streams; Portrait mode: max 2 destinations). Route that same stream through YoloCast instead, and you can simulcast to up to 30 destinations.
This is not a limitation of the hardware. It reflects where the actual distribution work happens. A standalone YoloBox pushes each connection out on its own. YoloCast, as a cloud platform, takes one incoming feed and fans it out to every destination from the cloud. That is a much lighter lift for any single device to manage.
So, if few destinations covers your needs, streaming straight from a YoloBox works fine. If you want to reach ten platforms, or thirty, route your stream through YoloCast instead.
Common Questions About Simulcasting With YoloCast
Is simulcast the same thing as multistreaming? For almost every practical purpose, yes. Some people draw a technical line between sending identical content (simulcast) and sending slightly different versions per platform (multistreaming). YoloCast supports both under the same feature.
How many platforms can I simulcast to with YoloCast? Up to 30 at once, including YouTube, Facebook, Twitch, and any RTMP-compatible platform or website.
Do I need special software to simulcast? No. YoloCast handles the distribution in the cloud once you add your destinations. You do not need separate encoders or software for each platform.
Is simulcast the same thing as multistreaming? For almost every practical purpose, yes. YoloCast supports both sending identical content and slightly different versions per platform under the same feature.
Conclusion
Simulcast is not complicated once you see it for what it is. One stream goes out to every platform your audience already uses, at the same time. YoloCast handles the distribution side, so you can focus on the broadcast itself instead of managing five separate streams.
If you are ready to set it up, check your destinations in YoloCast. Then compare plans to see how many platforms your current plan supports. Your next stream does not have to choose one platform over another.
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Suzy Su is a Customer Success Specialist at YoloLiv. She is dedicated to empowering users to explore YoloCast’s full range of features and tackle everyday challenges with confidence. Beyond direct support, she also crafts helpful articles packed with actionable tips, step-by-step troubleshooting advice, and proven best practices — all designed to help users unlock greater value from YoloCast.
