AV1 Global Streaming Traffic Share on Major CDNs

This article examines the current adoption rate of the AV1 video codec across major Content Delivery Networks (CDNs). While adoption is accelerating among tier-one streaming platforms, AV1 currently accounts for an estimated 2% to 8% of total global streaming traffic on general CDN infrastructure. The breakdown below details current traffic percentages, key adoption drivers, limiting factors, and the outlook for AV1 bandwidth distribution.

Current CDN Traffic Share

On major global CDNs such as Cloudflare, Akamai, and Fastly, the vast majority of video delivery remains dominated by legacy formats:

• H.264 (AVC): 60% to 75%
• H.265 (HEVC) & VP9: 20% to 30%
• AV1: 2% to 8%

The exact percentage varies by network. CDNs delivering high proportions of social media and video-on-demand (VOD) from advanced tech companies see AV1 figures closer to the 8% to 10% mark, whereas general multi-purpose CDNs see figures near the lower end of the 2% to 5% range.

Key Drivers of AV1 Delivery

The current volume of AV1 traffic is driven primarily by large-scale streaming providers aiming to reduce egress bandwidth costs:

• YouTube (Alphabet): Uses AV1 extensively for popular videos streamed to compatible desktop browsers, Android devices, and select smart TVs.
• Netflix: Streams AV1 to compatible TV platforms, mobile devices, and browsers where bandwidth efficiency yields noticeable performance gains at lower bitrates.
• Meta: Employs AV1 for Reels and standard video feeds across Facebook and Instagram to reduce mobile data usage for end users.

These platforms selectively serve AV1 based on real-time client capability detection. If a client device lacks efficient decoding support, the CDN automatically falls back to AVC or HEVC.

Factors Limiting Broader Market Share

Despite AV1 offering roughly 30% greater compression efficiency over HEVC and up to 50% over AVC, three primary bottlenecks keep its overall CDN traffic percentage in the single digits:

1. Hardware Decoding Availability: Smooth playback of AV1 requires dedicated hardware decoders. While modern PC GPUs, recent Android chipsets, and Apple devices featuring the A17 Pro or M3 processors support it, hundreds of millions of active devices still rely on software decoding, which drains battery life and degrades performance.
2. Computational Encoding Cost: AV1 requires significantly more CPU power and time to encode than AVC or HEVC. As a result, publishers predominantly reserve AV1 encoding for high-viewership, pre-recorded content rather than long-tail libraries or low-latency live streaming.
3. Legacy Device Lifecycles: Smart TVs and set-top boxes have long replacement cycles. Many connected TVs currently in living rooms lack the hardware to parse AV1 streams, forcing CDNs to continue delivering AVC or HEVC.

Future Outlook

As consumer hardware refreshes continue and cloud encoding costs decrease, AV1 traffic is projected to surpass 15% to 20% of global CDN delivery over the next three to five years. For now, it functions as a high-efficiency alternative for high-traffic assets rather than a universal default.