Multicast content delivery, enabled by QUIC.

Mass events push web streaming to the limit. QUICast brings secure, reliable multicast with unicast fallback—so you can deliver the same live video to millions without sending it millions of times.

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↓ Bandwidth
Reduce duplicated delivery
Open
Standards & interoperability
Secure
Verification + reliability
Sync
Mass-scale alignment

Built from the Multicastic pitch: unicast delivery is increasingly inefficient for large-scale live events, while multicast becomes viable when paired with QUIC’s security and reliability features.

The problem: unicast doesn’t scale

For global live events, everyone receives the same stream—yet web delivery still sends it user-by-user. As more viewers move from TV to streaming, capacity requirements explode and costs follow.

Mass events, massive duplication

Hundreds of millions may watch the same match or game. Replicating identical video millions of times is fundamentally inefficient.

Infrastructure limits

Even the largest CDNs and origin capacity can’t “brute force” peak viewership for the biggest events without enormous overprovisioning.

Viewer experience

Unicast variability increases delay differences between viewers—hurting synchronization for watch parties, stadium second-screen, and social viewing.

The solution: multicast + QUIC

Multicast lets the network replicate packets efficiently. QUIC provides modern transport features that address multicast’s historic blockers: security, privacy, reliability, and graceful fallback.

One-to-many delivery

Send a live video stream once; the network replicates it to many receivers.

Secure metadata via unicast

Clients receive verification metadata over secure unicast and use it to validate multicast packets.

Fallback built in

If multicast isn’t available, QUICast falls back to unicast—keeping compatibility and resilience.

Bandwidth & cost savings Open standards Secure & reliable Mass-scale synchronization Hybrid multicast + unicast

How it works

Two components

  1. Server-side QUIC extension (integrates with existing QUIC implementations)
  2. Client-side app / browser support to join multicast and validate packets

High-level architecture

Multicast source
(e.g., broadcast studio)
→
Network replication
(multicast)
→
Clients
(viewers)
Secure unicast metadata
→
Packet verification +
unicast fallback

Clients use unicast-delivered metadata to verify multicast packets, and seamlessly fall back to unicast when multicast isn’t supported.

Development status

Where we are

QUIC multicast extensions exist today but are largely research-grade. They need refinement before commercial deployment.

What’s missing

Production-ready client implementations (apps and/or browser support) and hardened operational tooling.

Next steps

Pilot deployments with operators, ISPs, and broadcasters to validate bandwidth savings and operational requirements at scale.

Target market

Primary customers are operators/ISPs and broadcasters—all benefit from reduced bandwidth and server cycles. Revenue focuses on licensing and professional services, with early deployments emphasizing measurable impact.

Operators & ISPs

Lower peak traffic, reduce backbone stress, improve QoE for live events.

Broadcasters

Scale streaming audiences without linear cost growth; improve synchronization.

CDNs & platforms

Hybrid delivery strategies where multicast is available, unicast elsewhere.

Let’s talk

Want to explore a pilot, integration path, or technical deep dive?

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