Company snapshot
| Category | CDNSun | Incapsula |
|---|---|---|
| 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.
Incapsula, now integrated under Imperva, is a cloud-based CDN platform focused on web application security, DDoS mitigation, and performance optimization. Founded in 2009 as a spin-off from Imperva, it provides services like web application firewalls (WAF), bot mitigation, and load balancing. The platform serves businesses of varying sizes, including high-traffic websites and enterprises like Wix and Siemens. Incapsula’s global network enhances site speed and security, leveraging intelligent caching and content optimization. It operates as a full proxy, sitting between the website and its host to deliver robust security and performance features.
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.
Incapsula operates a global CDN with points of presence (PoPs) across the Americas (e.g., Atlanta, Dallas, Los Angeles), Europe (e.g., Amsterdam, London, Frankfurt), and Asia-Pacific (e.g., Hong Kong, Singapore, Tokyo). The network includes recent expansions in India (New Delhi, Mumbai). It uses intelligent caching, TCP optimization, and frequency analysis to prioritize frequently accessed files, reducing latency. Routing and peering details are not fully public, but the platform emphasizes high-capacity scrubbing centers (100+ Gbps per Behemoth scrubber) for DDoS mitigation. It performs well globally but has a stronger presence in North America and EMEA, with growing coverage in APAC and India.
Feature comparison
| Feature | CDNSun | Incapsula |
|---|---|---|
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/.
Incapsula offers a free tier for up to 10 pages, including CDN, IPv6 support, and basic bot protection. Paid plans start at $59/month (Pro) and $299/month (Business) per site, with enterprise plans customized. Pricing is pay-as-you-go (PAYG) with committed options for enterprises. DDoS protection significantly increases costs on higher tiers. Full details are at https://www.imperva.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).
Incapsula supports API-first integrations for configuration and monitoring, with real-time logs and log push for analytics. It lacks Terraform support or dedicated SDKs for CI/CD pipelines. The platform provides a dashboard for bot traffic and WAF alerts, but migration tools are limited, requiring manual configuration or support from Imperva for complex setups.
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 robust web security with CDN, especially for DDoS and bot mitigation.
- High-traffic sites requiring global performance with strong North American and EMEA presence.
- Enterprises seeking API-driven control and real-time monitoring for security events.
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.
- Sites focused on video streaming or live content, as video-specific features like VOD or HLS/DASH are absent.
- Small projects needing lightweight, developer-centric CDN without security overhead.
- Budget-conscious users, as premium security features increase costs significantly.
History & Notes
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