Company snapshot
| Category | CDNSun | Rackspace |
|---|---|---|
| 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.
Rackspace Technology, founded in 1998, offers a content delivery network (CDN) designed to accelerate content delivery by caching assets closer to users. The service integrates with Rackspace’s broader cloud offerings, including Cloud Files, and supports businesses needing reliable content distribution. It is primarily used by enterprises leveraging Rackspace’s managed cloud services, particularly those with complex infrastructure needs. The CDN is built to reduce server load and improve user experience through global content distribution.
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.
Rackspace CDN operates a global network with points of presence (POPs) across North America, EMEA, APAC, and Latin America, though specific POP counts are not publicly detailed. It leverages partnerships with major cloud providers and uses Akamai’s infrastructure for content delivery. The service is optimized for integration with Rackspace’s cloud storage but may have limited flexibility for standalone CDN use. Its global footprint ensures low-latency delivery for enterprise customers, with a focus on North America and EMEA.
Feature comparison
| Feature | CDNSun | Rackspace |
|---|---|---|
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/.
Rackspace CDN operates on an enterprise-only model, with pricing typically bundled into broader Rackspace cloud contracts. No public per-GB pricing is available, and there is no free tier or pay-as-you-go option. Custom pricing requires contacting Rackspace sales for quotes tailored to enterprise needs.
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).
The CDN provides a robust API for managing services, with documentation available at https://docs.rackspace.com/docs/cdn. It supports programmatic control over caching, domains, and content refreshes. Real-time logs are available for monitoring, but there’s no public support for Terraform, SDKs, or CI/CD integrations. Migration tools are limited, primarily designed for integration with Rackspace’s Cloud Files.
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.
- When it fits:
- Enterprises already using Rackspace’s cloud services, seeking seamless CDN integration.
- Businesses needing global content delivery with a focus on North America and EMEA.
- Teams requiring API-driven CDN management and real-time logging.
- When it doesn’t:
- Small businesses or startups looking for pay-as-you-go or free-tier options.
- Users needing advanced security features like WAF or DDoS protection.
- Organizations prioritizing edge compute or video-specific CDN capabilities.
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.
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History & Notes
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