churn from buffering
Playback stutter
Frequent buffering and slow first frame hurt retention and conversion.

Covering live, on-demand, and short video—3,000+ edge nodes, intelligent routing, and smooth playback at billion-user scale.



Concurrency, latency, and global delivery—every link matters.
churn from buffering
Frequent buffering and slow first frame hurt retention and conversion.
cross-region RTT
High latency and packet loss make consistent QoE hard worldwide.
content piracy impact
Hotlinking, restreaming, and illegal capture threaten revenue and rights.
spend on bandwidth
Bandwidth is expensive; traffic spikes need elastic scale and ROI clarity.
Solution
End-to-end acceleration and protection built for streaming workloads.
Closed-loop acceleration
3,000+ edge nodes · smart routing · worldwide footprint
Live/VOD requests automatically trigger the acceleration path.
Protected delivery with premium QoE for every viewer.
DRM · adaptive bitrate · ~40% cost optimization
Scenarios
Live, on-demand, and short video—tailored delivery paths.
Ultra-low latency for gaming, commerce, sports, and education—millions of concurrent viewers, chat, and co-hosting with sub-second glass-to-glass delay.
<300ms
End-to-end
0.04%
Stall rate
99.99%
Ingest SLA
Prefetching and ABR for OTT and online learning—sub-200ms first frame, <0.5% rebuffering, 4K/8K ready.
98.7%
Cache hit
↓42%
Bandwidth cost
4K@60
Top profile
Distributed upload, edge prefetch, and moderation-friendly pipelines—sub-100ms first frame and buttery feeds.
180ms
First frame
+38%
Completion
0.6s
Swipe load
Sudun pipeline connects ingest, transcode, delivery and playback — each stage exposes live KPIs and self-healing on failure.
18,420/s
Data flow
24.6 Mbps
Live KPI
2,148,500
Self-heal
Ingest
RTMP / SRT / WebRTC ingest with primary-backup auto-switch
Transcode
H.264 / H.265 / AV1 multi-tier · AI codec saves 28% bandwidth
Deliver
Anycast + smart routing across 2,800+ edge nodes
Playback
ABR + packet-loss recovery · sub-second first frame
Decompose TTFF into 7 segments: DNS, TCP, TLS, HTTP, manifest, init segment and frame decode. Direct vs Sudun accelerated, side by side.
Direct TTFF
2920ms
Sudun TTFF
579ms
-2341ms · 80.2%
First-frame speedup
80.2%
Side-by-side comparison of three mainstream low-latency protocols with recommended use cases — VOD, interactive live, voice chat, cloud gaming.
Customers
Accelerating and protecting hundreds of video workloads worldwide.
After onboarding, first-frame time dropped from 800ms to 150ms and retention rose 35%—a step change for our product.
David Chen
VP Engineering · major video platform
Case study
How one team scaled real-time interactive live to millions of concurrent viewers





Research
streaming · global nodes & smart routing
View all reportsstreaming · ABR & prefetching
View all reportsEnterprise-grade acceleration and protection—ready to evaluate.