STREAMING AND VIDEO DELIVERY
Why are your viewers buffering when your origin is fine?
Public CDNs were built to cache web assets. Live video is a different problem entirely. It is high-concurrency, latency-sensitive, and completely unforgiving of the resource contention that shared multi-tenant infrastructure creates. When a major live event drives a traffic spike, every broadcaster on that CDN is competing for the same edge capacity at the same moment.
Why shared CDN infrastructure fails live video
Live streaming exposes weaknesses that standard web delivery never encounters.
Concurrent demand is instantaneous and massive
A live event spikes at kickoff, at halftime, at the moment of breaking news. Shared infrastructure that handles average load well fails at peak load, when it matters most.
Segment-based delivery punishes generic caches
HLS and DASH streams are a continuous flood of short-lived segments. Generic caches optimised for static assets introduce buffering at the segment level that compounds into visible quality degradation for viewers.
Origin protection breaks under load
Every new segment drop triggers a wave of simultaneous requests. Without robust request coalescing and persistent cache state, those waves reach the origin packager directly.
What CDN congestion costs your teams
The impact lands differently depending on where you sit:
VP of Video Engineering
Congestion on shared infrastructure triggers packet drops and bitrate downgrades during peak events when viewership is highest and the cost of churn is greatest.
Streaming architect
Public CDNs offer limited programmability. Token verification, dynamic manifest manipulation, and geoblocking require extra hops to external services, adding latency that compounds into player startup delays.
Network SRE lead
Routine cache reboots wipe in-memory state and trigger thundering herd events that crash backends at the worst possible moment. Incident response during a live event is an entirely different pressure to incident response during normal operations.
Why public CDNs can't be fixed with configuration
Challenge 1
Noisy neighbors corrupt quality
Unrelated traffic on shared edge servers competes for the same CPU and network capacity as your video streams. Round-trip time increases, buffers fill, viewers see the result.
Challenge 2
Rigid buffers delay delivery
Generic caches buffer entire segments rather than streaming frames in real time. Time-to-first-frame bloats and low-latency pipelines break down.
Challenge 3
Origin shielding fails at segment drops
Standard proxies allow thousands of requests to bypass the cache during new segment availability, overloading origin packagers with traffic they should never see.
Challenge 4
Cache state is lost on reboots
Ephemeral in-memory caches are wiped during rolling edge reboots. Every restart triggers a thundering herd of cache misses that hits the origin simultaneously.
"Varnish is the cornerstone of how we handle scale"
Global streaming service
How Ora Streaming solves it
Ora Streaming is a fully managed private CDN-as-a-service engineered specifically for high-concurrency live events and demanding VOD platforms, combining high-density bare-metal hardware with Varnish Enterprise operated 24/7 under a predictable capacity-based pricing model:
01
Dedicated bare-metal edge capacity |
Every node runs your workloads exclusively. 100% of physical CPU, memory, and network interface resources are reserved for your streams. No noisy neighbours, no resource contention, no unpredictable performance at peak load. |
02
On-net deployment inside Tier-1 ISPs |
Dedicated nodes sit on-net inside Tier-1 carriers and local ISPs, placing your active video segment cache one network hop from the end viewer. |
03
Persistent NVMe caching survives reboots |
VOD libraries and live segments are persisted directly on local NVMe arrays. Edge caches survive system reboots with zero warm-up latency. Origin packagers are never exposed to thundering herd events during maintenance windows. |
04
Inline edge logic at sub-millisecond speed |
Token verification, dynamic manifest manipulation, and geoblocking run natively inside the core process on edge nodes. No extra hops, no external service calls, no added latency in the startup path. |
The numbers
Viewers stop buffering. Origins stop crashing.
<0.5ms
100%+
50%+
Ora Streaming
Dedicated private capacity. Exceptional QoS. Total control.
A purpose-built, fully managed Private CDN-as-a-Service engineered specifically for high-concurrency live events and demanding VOD platforms. Ora combines high-density bare-metal hardware with the industry-leading Varnish Enterprise caching engine. Operating as your private delivery network, the entire infrastructure is managed 24/7/365 by Varnish engineering experts under a highly predictable, capacity-based pricing model.
Resources and media
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Using synthbackend for live video streaming
Every time you need fast access to ephemeral content, this concept provides a quick and efficient way to deliver it.
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Benefits of a dedicated CDN: Interview with MUX & Varnish
Captured live at IBC 2025. Varnish sit down with MUX, to discuss MUX’s CDN journey.
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Video prefetching with Varnish Software
Content prefetching is a powerful technique used to optimize web performance by proactively loading resources before they are explicitly requested by a user.
Next steps
Talk to our team today to learn more about Ora Streaming.
