Fintech
In forex and crypto, quotes win or lose in milliseconds.
Dynamic CDN
Millisecond real-time response
Built for finance, gaming, and messaging: bidirectional WebSocket and API acceleration with automatic best-route selection across Hong Kong, Mainland, and global nodes.
Pick a plan by user region
Every plan includes free SSL, WAF, and DDoS protection. Priced in HKD, billed after use, with itemised monthly statements.
Estimate · which billing is cheaper
Hong Kong usersExpected monthly traffic
Pay-as-you-go
HK$9,500/ mo*
20 TB billed by tiered per-GB rate — no contract, pay for what you use.
Effective ≈ HK$0.475 / GB
Start pay-as-you-goBest valueMonthly plans
HK$5,628/ mo
Best fit is Standard (includes 20 TB / mo), a perfect fit.
Effective ≈ HK$0.281 / GB
Choose Standard💡 At 20 TB, the Standard monthly plan is HK$5,628 / mo — HK$3,872 less than pay-as-you-go; steady usage locks in a lower rate.
* Pay-as-you-go is bandwidth only (tiered per-GB x usage); first 2 M HTTP/HTTPS requests free, then billed separately. TB = 1,000 GB, estimate only.
What is
Dynamic CDN?
Dynamic CDN accelerates real-time data and dynamic content. It holds persistent WebSocket connections at the edge and terminates TLS there, so requests and responses travel between client and origin on the shortest, steadiest path.
Dynamic CDN is more than acceleration. It bundles bidirectional connections, API acceleration, automatic best-route selection, dynamic prefetch, and edge security as a baseline for modern real-time apps.
Industries that use this most
Online gaming
Player actions sync instantly, and low ping wins the match.
Messaging and video calls
Interactive live and commerce
Real-time collaboration and SaaS
IoT and cloud APIs
Turn it on, and real-time changes
Trading, controls, and chat are highly latency-sensitive; edge nodes complete the round-trip in milliseconds, so users stay and connections hold.
< 20ms
Millisecond response keeps real-time users
Trade matching, game inputs, and live chat: edge nodes complete requests in millisecond round-trips, so lag does not cost you users or trades.
3region nodes
Stable cross-border latency, consistent everywhere
Hong Kong, China, and global nodes run together, giving overseas and local users the same level of real-time response.
99.99%
Connections hold, business stays online
Persistent WebSocket connections with automatic best-route switching reroute around congestion to keep long sessions alive.
−60%
Less load on your origin, lower infrastructure cost
The edge handles prefetch and connection termination, so the origin carries only core logic and you do not rescale as users grow.
Three steps, live the same day
No changes to your existing server setup, and the whole process fits within one business day.
01
Add your domain
Log in to the UD CDN console, enter the dynamic domain to accelerate, and verify ownership.
02
Set dynamic acceleration rules
Choose rules for WebSocket, API, or real-time data. No changes required to your backend, API gateway or app architecture.
03
Switch DNS & monitor
Point your domain to UD CDN to go live instantly. Monitor traffic, latency, connections, and usage in real time from the console.
Core features for real-time apps
Messaging, real-time trading, and API-heavy apps plug in directly, with no change to your existing architecture.
Major protocols supportedNative support, no extra configuration
WebSocketRESTGraphQLgRPCHTTP/3QUICTLS 1.3HTTP/2
Smart best-route selection
It detects congestion in real time and reroutes automatically, with a 99.99% uptime commitment so your business stays online.
Native WebSocket and multi-protocol
Edge nodes terminate SSL / TLS for millisecond round-trip latency.
Multi-region delivery
One account activates Hong Kong, Mainland China, and global nodes, routing each user to the best line by origin.
Dynamic prefetch and connection management
It actively prefetches predictable requests and optimises persistent connections to speed up the next call, so users never feel a cold start.
Edge security, free and built in
Free certificates, a web application firewall, and DDoS protection. APIs can add rate limiting and IP allowlists.
24/7 local Hong Kong support
24/7 email, phone and live chat, with a real person responding, no queue.
Talk to our Dynamic CDN experts
For custom WebSocket / API integration, running a high-concurrency real-time platform, or deploying multi-region nodes, fill in the form and our Hong Kong team will follow up shortly.
Frequently asked questions
Still have questions? Reach our Hong Kong engineering team directly.
How does a dynamic CDN differ from a general CDN?
A general CDN mainly caches static web assets (images, JS, CSS). A dynamic CDN adds optimisation for WebSocket, REST / GraphQL / gRPC APIs, and real-time data streams: edge SSL / TLS termination, automatic best-route selection, persistent connections, and dynamic prefetch. If your business involves messaging, trading, gaming, or API-heavy apps, a dynamic CDN is the right choice.
Which protocols does UD Dynamic CDN support?
WebSocket, REST, GraphQL, gRPC, HTTP/3, and QUIC are all supported. Optimisations common to fintech and SaaS API-heavy workloads, such as keep-alive, HTTP/2 multiplexing, and TLS 1.3, are built in.
How does a dynamic CDN help latency-sensitive businesses (finance / gaming)?
A dynamic CDN holds persistent WebSocket connections at the edge and terminates TLS there, keeping round-trip latency in the milliseconds. With automatic best-route selection, it reroutes around congestion so a single failing line does not affect the business. This matters most for financial trading and multiplayer gaming.
How do I serve Hong Kong, Mainland, and global users at once?
Activate Hong Kong, China, and global region plans in one account, with each user routed to the matching nodes by origin. Smart CDN can also direct each region to the best line automatically.
Do I need ICP filing to serve Mainland users?
No. UD Dynamic CDN uses China Telecom CN2 GIA lines to nodes around the Mainland, so you can serve Mainland users without an ICP filing.
What security does UD Dynamic CDN include?
All dynamic CDN traffic automatically hides the origin address, with free SSL certificates, a web application firewall, and DDoS protection built in. APIs can add rate limiting and IP allowlists to reduce abuse and bot attacks.
How do I connect my existing WebSocket / API to UD Dynamic CDN?
Log in to the UD CDN console, enter your dynamic domain, verify ownership, and point it to UD CDN to go live. No change to your existing backend WebSocket server, API gateway, or app architecture, and it finishes within one business day.
How does Dynamic CDN work with Video CDN and Smart CDN?
Dynamic CDN handles real-time APIs and WebSocket data; Video CDN handles live and on-demand video; Smart CDN handles cross-region routing. Run all three together for real-time, video, and cross-region coverage. For example, a live platform can use Video CDN for the stream and Dynamic CDN for viewer chat and live polls.
How is high concurrency handled?
Edge nodes accept WebSocket connections and API requests by geographic proximity, while the origin handles only core logic. For very high concurrency such as trading hours or large live chat rooms, tell the sales team in advance via the form to reserve dedicated resources.
Which businesses is it for?
Fintech, forex and crypto trading, online gaming, messaging, video conferencing, collaborative editing tools, real-time flash sales, IoT platforms, interactive live services, and any cloud software needing real-time API responses.