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WebRTS adds DRM and server-side ads without leaving sub-second delivery

Ceeblue and Layercake encrypt once at ingest, keep keys away from edge nodes and orchestrate protected SSAI streams across standard CDNs.

Broadcast Brief newsroomPublished Sep 17, 2026 · 08:21

Editorial illustration for WebRTS adds DRM and server-side ads without leaving sub-second delivery — Original Broadcast Brief editorial illustration

Ceeblue and Layercake have released production DRM and server-side ad insertion for sub-second WebRTS delivery. Layercake’s Streamcake control plane orchestrates Ceeblue origins and edge capacity across standard CDN infrastructure.

The DRM path supports CENC and CBCS encryption for Widevine, PlayReady and FairPlay across DASH, HLS/CMAF, low-latency HLS and WebRTS. Encryption metadata is created at ingest, while edge and relay nodes forward protected media without holding the decryption keys.

SSAI removes the earlier trade-off between monetisation and the latency needed for betting, auctions and interactive sport. The companies say the combined system is available across deployments that include Akamai, Orange, Fastly and other CDNs.

Availability does not establish performance for every player and device. Rights holders should validate ad-boundary accuracy, DRM licence latency, key rotation, failover, measurement parity and sustained audience scale before committing premium events.

Technical signal-flow illustration for WebRTS adds DRM and server-side ads without leaving sub-second delivery — Technical context visual · Broadcast Brief

What we know

The production framework supports CENC and CBCS plus three major DRM ecosystems.
SSAI is combined with sub-second delivery over standard CDNs.
Edge nodes can forward encrypted media without possessing decryption keys.

What remains open

Independent latency and concurrency results are not published.
Player coverage and ad-measurement parity require deployment testing.
Operational behaviour during DRM, origin or CDN failure is not detailed.

Sources InBroadcastwww.inbroadcast.com ↗

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