# Scaling Whatnot: Behind the Largest Live Shopping Stream in US History

DevFeed: [Scaling Whatnot: Behind the Largest Live Shopping Stream in US History](<https://devfeed.tech/articles/scaling-whatnot-behind-the-largest-live-shopping-stream-in-us-history-23712.md>)

Original publisher: [Read original article](<https://medium.com/whatnot-engineering/scaling-whatnot-behind-the-largest-live-shopping-stream-in-us-history-040a458f538c?source=rss----162aeca881b0---4>)

Author: Whatnot Engineering

Published: 2026-02-24T14:33:16Z

Content type: article

Language: en

Sources: [Whatnot Engineering](<https://devfeed.tech/sources/whatnot-engineering.md>)

Topics: [Scalability](<https://devfeed.tech/topics/scalability.md>), [Architecture & Design](<https://devfeed.tech/topics/architecture-design.md>), [Platform Engineering](<https://devfeed.tech/topics/platform-engineering.md>), [SRE](<https://devfeed.tech/topics/sre.md>), [Elixir](<https://devfeed.tech/topics/elixir.md>), [Python](<https://devfeed.tech/topics/python.md>)

Tags: [cloud-computing](<https://devfeed.tech/tags/cloud-computing.md>), [devops](<https://devfeed.tech/tags/devops.md>), [elixir](<https://devfeed.tech/tags/elixir.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [load-testing](<https://devfeed.tech/tags/load-testing.md>), [python](<https://devfeed.tech/tags/python.md>), [resilience](<https://devfeed.tech/tags/resilience.md>), [scalability](<https://devfeed.tech/tags/scalability.md>), [scale](<https://devfeed.tech/tags/scale.md>), [site-reliability-engineer](<https://devfeed.tech/tags/site-reliability-engineer.md>), [software-engineering](<https://devfeed.tech/tags/software-engineering.md>), [sre](<https://devfeed.tech/tags/sre.md>), [technology](<https://devfeed.tech/tags/technology.md>)

## AI overview

Whatnot describes how it prepared its platform for a MrBeast giveaway stream that reached 583,000 concurrent viewers and became the largest live shopping event in US history. The article covers architectural investments, progressive production load testing, event-day results, and lessons for future scalability.

## Source excerpt

On February 8, 2026, over a half million viewers tuned in to watch MrBeast give away 1 million dollars in prizes on Whatnot. On Big Game Sunday 2026, MrBeast went live on Whatnot for a giveaway show that would become the largest live shopping event in US history. At peak, 583,000 concurrent viewers were watching a single show on our platform. Over 555k people entered a single giveaway. We drove hundreds of thousands of new signups in 24 hours. If any one of a dozen systems buckled, it would have happened live on camera. We pulled it off with zero major incidents. But that outcome was never guaranteed. It took months of preparation, 60+ engineers across every major engineering org, and some of the most significant infrastructure investments we've ever made. In this post, we'll walk through the biggest technical challenges we faced and how we solved them, not with throwaway scaffolding, but with durable platform improvements that raise our scalability ceiling for every seller and buyer on the platform. We'll cover the work in three parts. First, the key architectural investments we made to handle this scale: admission control, connection pooling, feed resilience, and video infrastructure. Then, how we validated it all through progressive production load testing. Finally, what happened on event day, what we learned, and what we're carrying forward. Setting the Stage If you've followed our blog, you might remember our Post Malone "Post-Poned" post from 2022 or our three-part series on preparing for the 2024 Big Game. Each of those events pushed us to improve, and each one revealed new limits. As our community has grown, scaling our infrastructure to match has been a consistent priority. The MrBeast event was on a different order of magnitude entirely, but it accelerated work that was already underway. Our target was to support 1 million concurrent viewers on a single stream and 1.35 million across the platform. To put that in perspective, our previous largest event had