Company snapshot
| Category | Alibaba Cloud CDN | CDNSun |
|---|---|---|
| Status | active | active |
| Founded | — | — |
| Headquarters | — | — |
| Website | — | — |
| Docs | — | — |
Overview
Alibaba Cloud CDN, operated by Alibaba Cloud, is a global content delivery network with over 1,200 points of presence (POPs) across more than 70 countries. It specializes in accelerating content delivery for websites, video streaming, and large-scale downloads, particularly in the Asia-Pacific (APAC) region and China. The service supports a range of industries, including e-commerce, gaming, and media, with a strong focus on compliance with China’s regulatory requirements. Customers include enterprises and developers needing low-latency delivery in APAC markets. The platform integrates with other Alibaba Cloud services like Elastic Compute Service (ECS) and Object Storage Service (OSS) for streamlined content hosting.
CDNSun, founded in 2012, is a content delivery network provider based in Prague, Czech Republic. It offers services like website acceleration, video streaming, and software delivery through a network of over 50 points of presence (PoPs) worldwide. Its customer base includes businesses seeking cost-effective CDN solutions, particularly small to medium-sized enterprises. CDNSun emphasizes affordability with a pay-as-you-go model and a 15-day free trial. The service supports HTTP/2 and provides free shared SSL on its *.r.worldssl.net domain.
Network & Architecture
Alibaba Cloud CDN operates over 1,200 POPs globally, with a significant presence in APAC, including China, where it holds a Ministry of Industry and Information Technology (MIIT) license for compliance. The network leverages extensive peering with local ISPs in China to ensure low-latency delivery. It uses tiered caching and origin shield to reduce origin server load. The service is optimized for high-traffic scenarios like e-commerce events (e.g., Singles Day), but its coverage in Africa and Latin America is less extensive compared to North America and EMEA.
CDNSun operates more than 50 PoPs across five continents, including locations in North America (e.g., Atlanta, Chicago, Dallas), Europe (e.g., Amsterdam, Frankfurt, London), Asia (e.g., Hong Kong, Singapore, Tokyo), South America (e.g., Sao Paulo), and Australia (e.g., Sydney). All edge servers use SSD drives for faster data access and have redundant connectivity to robust internet networks. The network supports global content delivery with a focus on reducing latency for websites and streaming services. Specific routing or peering details are not publicly disclosed, but the provider claims strong performance for global audiences.
Feature comparison
| Feature | Alibaba Cloud CDN | CDNSun |
|---|---|---|
waf | ✓ | ✗ |
bot_mitigation | ✗ | ✗ |
ddos | ✓ | ✗ |
rate_limit | ✗ | ✗ |
http3_quic | ✓ | ✓ |
tls13 | ✓ | ✓ |
tiered_cache | ✓ | ✗ |
origin_shield | ✓ | ✗ |
instant_purge | ✓ | ✓ |
stale_while_revalidate | ✗ | ✗ |
stale_if_error | ✗ | ✗ |
image_optimization | ✓ | ✗ |
video_vod | ✓ | ✓ |
video_live | ✓ | ✓ |
drm | ✗ | ✗ |
hls_dash_packaging | ✗ | ✗ |
websockets | ✗ | ✗ |
signed_urls | ✓ | ✗ |
edge_compute | ✓ | ✗ |
functions | ✗ | ✗ |
kv_storage | ✗ | ✗ |
api_first | ✗ | ✓ |
realtime_logs | ✓ | ✓ |
log_push | ✓ | ✗ |
terraform | ✓ | ✗ |
Legend: ✓ = Supported, ✗ = Not supported, — = Not listed
Pricing
Alibaba Cloud CDN uses a pay-as-you-go (PAYG) model with pricing based on traffic volume and region. A free trial is available, offering up to 12 months of usage for select services like Elastic Compute Service, which integrates with CDN. Per-GB pricing varies by region, with China typically higher due to regulatory compliance costs. Detailed pricing is available at https://www.alibabacloud.com/product/cdn/pricing.
CDNSun uses a pay-as-you-go (payg) model with no monthly or setup fees. A 15-day free trial (free-tier) is available for all services. Pricing is transparent, with custom options for high-volume users, but specific per-GB rates are not publicly listed. SMB-friendly pricing targets smaller businesses. The official pricing page is https://cdnsun.com/pricing/.
Integrations & DevEx
The service supports Terraform for infrastructure-as-code, enabling automated configuration of CDN domains. SDKs are available for multiple languages, facilitating integration with CI/CD pipelines. Real-time logs and analytics are accessible via the console or API, with log push capabilities for external storage. A self-service diagnostics tool helps troubleshoot issues like page loading failures. Domain transfer tools simplify migrations across Alibaba Cloud accounts.
CDNSun offers an API-first approach for managing CDN services, including access to real-time logs. It provides integration support via a dashboard and API, with 24/7 technical support through email, phone, and live chat. No specific Terraform or CI/CD integrations are documented. The service includes tools for testing performance gains, such as ping tests and downloadable test files (1 MB and 20 MB).
When it fits
- Businesses targeting APAC and China markets, especially those needing MIIT-compliant CDN services.
- E-commerce and media companies handling high-traffic events with video streaming or large downloads.
- Users integrating with Alibaba Cloud’s ecosystem (ECS, OSS) for end-to-end content management.
- Small to medium-sized businesses needing affordable, pay-as-you-go CDN services with a free trial.
- Companies targeting global audiences with video streaming or software delivery needs.
- Developers seeking an API-driven CDN with real-time logs for monitoring.
When it doesn’t
- Organizations prioritizing extensive coverage in Africa or Latin America, where POP density is lower.
- Small businesses seeking simple, low-cost CDN solutions without complex integrations.
- Users requiring advanced bot mitigation or managed WAF rules, which are not fully supported.
- Enterprises requiring advanced security features like WAF, DDoS protection, or bot mitigation.
- Businesses needing specialized edge compute, key-value storage, or advanced video features like DRM.
- Users prioritizing extensive integrations with Terraform, CI/CD pipelines, or specific cloud platforms.
History & Notes
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