Pinterest Implements HTTP/3 on Multi-CDN Edge Network

Pinterest has implemented HTTP/3 on its multi-CDN edge network, upgrading client apps' network stack to support the new protocol. The adoption of HTTP/3 aims to improve network performance, offering faster and more reliable networking, which enhances the user experience and business metrics. The strategy involved careful A/B testing and addressing challenges related to browser and CDN support. The current state shows HTTP/3 enabled for major Pinterest production domains and mobile clients, with positive impacts on core network and engagement metrics. Future work includes increasing HTTP/3 coverage and exploring further improvements and experimentation with congestion control algorithms and 0-RTT connection establishments.

• Pinterest has implemented HTTP/3 on its multi-CDN edge network
• Upgraded client apps' network stack to support the new protocol
• A/B testing and addressing challenges with browser and CDN support
• Positive impacts on core network and engagement metrics
• Future work includes increasing HTTP/3 coverage and exploring further improvements and experimentation with congestion control algorithms and 0-RTT connection establishments