Company snapshot
| Category | CDNSun | Uploadcare CDN |
|---|---|---|
| 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.
Uploadcare CDN, part of Uploadcare, is a file management platform and content delivery network designed for web and mobile applications. It specializes in handling file uploads, processing, and delivery, with a focus on media optimization for images and videos. The service caters to developers and businesses, offering tools for content creators and engineers. Its customer base includes startups, SMBs, and enterprises needing efficient media workflows. Uploadcare is headquartered in Palo Alto, USA, and has been operational since 2011.
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.
Uploadcare CDN operates a global network, though specific details on the number of Points of Presence (POPs) are not publicly disclosed. The platform leverages a multi-vendor CDN approach to ensure reliable content delivery across regions, including North America, EMEA, APAC, and others. It integrates with major cloud providers for storage and processing, optimizing for low-latency delivery of media assets. The architecture is developer-centric, prioritizing API-driven workflows and seamless integration with web and mobile apps.
Feature comparison
| Feature | CDNSun | Uploadcare CDN |
|---|---|---|
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/.
Uploadcare CDN uses a pay-as-you-go (PAYG) model with a free tier for low-volume users. Paid plans start at $20/month, with per-GB pricing for CDN traffic and storage. For example, the Regular plan includes 100 GB of CDN traffic for $49/month. A free tier offers limited monthly CDN traffic, suitable for testing or small projects. Enterprise plans are available for custom needs. Full details are at https://uploadcare.com/pricing/.
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).
Uploadcare provides a REST API and webhooks for programmatic control, with SDKs for JavaScript, Python, and other languages. Its React Uploader component simplifies file uploads in React applications. Real-time logs are available for monitoring, and instant purge is supported via API. No Terraform or CI/CD pipeline integrations are documented. The platform includes a dashboard for managing files and monitoring usage, aimed at developers and content teams.
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.
- Small to medium businesses needing a developer-friendly CDN for media-heavy web or mobile apps.
- Projects requiring robust image optimization and video-on-demand delivery with simple API integration.
- Teams on a budget leveraging the free tier or PAYG pricing for low-to-moderate traffic.
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.
- Enterprises needing advanced security features like WAF, DDoS protection, or bot mitigation, which are not offered.
- Applications requiring live video streaming, DRM, or complex edge compute capabilities.
- Organizations needing detailed network transparency or extensive POP coverage, as specific network details are limited.
History & Notes
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