Company snapshot
| Category | CDNSun | China Telecom |
|---|---|---|
| Status | active | active |
| Founded | — | — |
| Headquarters | — | — |
| Website | — | — |
| Docs | — | — |
Overview
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.
China Telecom Corporation Limited, a state-owned telecommunications provider, operates one of China’s largest content delivery networks, leveraging its extensive infrastructure to optimize content distribution. Founded in 2002, it serves major internet portals and enterprises, including Tencent QQ, Baidu, Sina, and Weibo. The CDN is integrated with China Telecom’s backbone networks, ChinaNet and CN2, to deliver low-latency services across China and globally. It caters to businesses requiring compliance with China’s strict internet regulations, such as ICP licensing, and supports a range of applications from web content to streaming media.
Network & Architecture
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.
China Telecom CDN operates points of presence (PoPs) across 11 countries, with 15 cities including Sydney, Hong Kong, Tokyo, and Amsterdam. Its domestic strength lies in partnerships with local ISPs like China Unicom and Zenlayer, ensuring robust connectivity within mainland China. The network supports over 1–5 Tbps in traffic capacity, with 788 IP ranges in China alone. Limitations include restricted operations in the U.S. due to FCC orders citing national security concerns, impacting its ability to serve American customers directly. Its global reach is strong in APAC but less comprehensive in EMEA and LATAM compared to providers like Cloudflare or Akamai.
Feature comparison
| Feature | CDNSun | China Telecom |
|---|---|---|
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
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/.
Pricing details are not publicly disclosed and typically involve enterprise-level contracts tailored to customer needs. No pay-as-you-go (PAYG) or free-tier options are documented. Businesses should contact China Telecom directly for quotes, as pricing varies based on traffic volume and service requirements.
Integrations & DevEx
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).
China Telecom CDN provides API-first access for configuration and management, with real-time logging for performance monitoring. Terraform or specific SDKs for CI/CD pipelines are not documented. Migration tools or support for transitioning from other CDNs are not publicly detailed, but partnerships with providers like Conversant suggest integration capabilities for international businesses.
When it fits
- 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.
- Businesses needing a China-licensed CDN to comply with ICP regulations for mainland China operations.
- Enterprises serving high-traffic portals or streaming services in APAC, leveraging China Telecom’s ISP partnerships.
- Organizations requiring robust DDoS protection and image/video optimization for Asia-centric audiences.
When it doesn’t
- 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.
- Companies primarily targeting U.S. markets, due to FCC restrictions and operational bans.
- Small businesses or startups seeking transparent PAYG pricing or free-tier options.
- Users needing extensive global PoP coverage outside APAC, where competitors like Cloudflare excel.
History & Notes
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