Edge acceleration
Cache hits are answered by a PoP near your users, cutting round trips and the number of requests that reach your origin.
SCDN · High-bandwidth CDN
CDN
Cache content at the edge, stop attacks before they reach your origin, and push heavy traffic from PoPs in Hong Kong, Japan, Germany and the United States, on over 10 Tbps of service capacity.
Delivery and protection on one network
Edge caching brings content closer to your users, while DDoS, CC and WAF protection keeps malicious traffic away from your origin.
DDoS and CC protection
Absorb volumetric floods and HTTP flood (CC) attacks at the edge, backed by over 10 Tbps of network-wide DDoS mitigation.
Over 10 Tbps service capacity
Headroom for traffic peaks, product launches and large downloads across PoPs in Hong Kong, Japan, Germany and the US.
Two CDN services, one network
SCDN accelerates and protects websites and applications. High-bandwidth CDN moves large volumes of downloads and media.
SCDN (secure CDN)
Accelerate and protect websites and applications in one path: edge caching, WAF, DDoS and CC protection, plus AI deep-learning detection.
- Edge caching for images, scripts, stylesheets and fonts
- WAF, region blocking and custom block lists
- DDoS and CC (HTTP flood) attack protection
- Free or custom SSL certificates, wildcard subdomains
High-bandwidth CDN
Built for high-volume content delivery: large files, downloads, video and game updates, on over 10 Tbps of service capacity.
- Large-file and software download delivery
- Video delivery for media libraries
- Game installers, patches and updates
- HTTPS delivery and TCP optimization
Edge acceleration
Answer from the edge, not the origin
Cacheable content such as images, stylesheets, JavaScript, fonts and downloads is stored at our PoPs. Cache hits are served at the edge; misses are fetched from your origin once and reused.
What edge caching changes
- Fewer repeat requests to your origin
- Faster page loads for users far from your servers
- Origin groups with load balancing and advanced back-to-origin options
- TCP optimization for long-distance connections
Keep attacks away from your origin
SCDN filters malicious traffic at our PoPs, so legitimate visitors keep getting through.
DDoS protection
Absorb volumetric attacks at the edge, backed by over 10 Tbps of network-wide DDoS mitigation capacity.
CC attack protection
Filter HTTP flood (CC) attacks, large volumes of repeated or abnormal requests, before they exhaust your origin.
WAF and access rules
Block web application attacks with the WAF, and limit who can reach you with region blocking and custom block lists.
HTTPS and certificates
Deliver content over HTTPS with free or custom SSL certificates, including wildcard subdomains.
AI deep-learning protection
Deep learning against L3/4 and L5/7 attacks
Deep-learning models identify and mitigate network-layer (L3/4) and application-layer (L5/7) attacks. GPU deep-learning clusters run at our network sites, and NPUs in edge nodes accelerate inference, so detection happens where traffic arrives.
L3/4L5/7GPUNPU
How the models protect you
- L3/4 models for network-layer attacks
- L5/7 models for application-layer attacks
- GPU deep-learning clusters at network sites
- NPU inference at edge nodes
Global reach
Hong Kong, Japan, Germany and the United States
Our PoPs across Asia-Pacific, Europe and North America bring content close to your audiences in each region.
Hong KongJapanGermanyUnited States
Reach mainland China without ICP filing
Our CDN has no nodes in mainland China. Visitors there are served from nearby PoPs such as Hong Kong and Japan, so no ICP filing is required.
- Optional premium China routes, available on request
- Optional Anycast, available on request
Built for your content
From brand websites to release day, every type of content gets a delivery plan that fits.
Brand and content websites
Serve images, fonts, stylesheets and scripts from the edge so pages load smoothly wherever visitors are.
E-commerce
Keep product images and campaign pages fast through sales peaks, with DDoS and CC protection in the same path.
Application assets
Deliver app bundles, interface images and static resources to users across regions from nearby PoPs.
Downloads and updates
Distribute installers, game updates, video and large files on over 10 Tbps of service capacity.
From domain to production in four steps
Our team plans each step with you.
1. Prepare
Share the domains to accelerate, your origin, content types and HTTPS requirements.
2. Configure
We set up your domain, origin, caching rules and protection policies with you.
3. Verify
Check page loads, content versions, HTTPS and key flows such as sign-in and checkout.
4. Go live
Move production traffic over step by step, then keep tuning as your content grows.
Plan your CDN deployment
Tell us about your domains, traffic and audiences, and Sales will scope SCDN or high-bandwidth CDN for you.