Low-Latency WebRTC Live CDN
WHIP/SRT publish, WHEP play — a global WebRTC CDN with P2P-first + Edge fallback: up to 4 simulcast layers and HEVC/H264 multitrack, ABR, measured P2P latency with SLA, per-session recording, and a subscribable AI health report.
About ppcdn
ppcdn is a global low-latency WebRTC CDN for interactive live streaming: publish with WHIP/SRT via ppobs and play over WHEP with ppplayer — P2P-first with Edge fallback, up to 4 simulcast layers and HEVC/H264 multitrack.
It offers ABR, measured P2P latency with SLA, a per-session recording API, and a subscribable AI live health report — serving live commerce, online classrooms, interactive games, and 1-on-1 live.
WHIP / SRT Simulcast Ingest
Publish over WHIP or SRT as simulcast, with up to 4 layers and seamless layer switching — no single-protocol lock-in.
HEVC / H264 Multitrack
Publishes H264 and HEVC as two independent streams; HEVC-capable clients pull HEVC-simulcast for ~30% less traffic, others fall back to H264 automatically.
ABR Adaptive Bitrate
The server steps simulcast layers up/down based on live bandwidth estimates — smooth on weak networks, sharp when they recover, with no manual quality picking.
NAT-Traversal Live
Direct P2P over NAT traversal, latency as low as 100ms — ideal for 1-on-1 live scenarios such as iSOT.
SEI Real-Time Timestamp
ppobs stamps an NTP-disciplined timestamp into the media; ppplayer parses it for an exact P2P delay. ppplayer syncs its clock via ppcenter's NTP.
P2P Latency SLA
Daily P2P targets: P80 ≤300ms (600ms ceiling), P99 ≤2s, with pass/warn/fail status visible in the console.
Per-Session Recording API
Two calls (session start/end) split exact recording files, upload them to object storage and return playback URLs; retention up to 90 days. Works for a game round, an auction, or a class alike.
AI Live Health Report
A subscribable ($10/mo/account) account-level health report covering traffic, publishing, uplink loss, playback latency and viewer geo, with an SLA availability rate.
Use Cases
Live Video Interaction
Real hosts on camera with near-synchronous viewing — for scenarios that need an instant response.
Real-Time Trading
Auctions, quotes and flash sales where bid and picture must not drift apart.
Live Classroom
Teacher and students interact in real time; low latency keeps Q&A, voice and whiteboard in sync, and each lesson can be recorded per session.
Interactive Game Streaming
Viewers take part live with chat and voice; low latency, minimal stutter, adaptive quality layers.
pplayer Live Demo
Below is a generic demo URL. Sign up and create an app to get your own personalized stream URL.
Contact us
Reach the official team through any channel below for support, business, and updates.