Company snapshot
| Category | CDNSun | Vercara |
|---|---|---|
| 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.
Vercara, formerly Neustar Security Services, is a cloud-based provider of CDN, DNS, and cybersecurity solutions, focusing on enterprise-grade services. It offers UltraDNS for managed authoritative DNS and UltraDDoS Protect, UltraWAF, UltraAPI, and UltraEdge for security and performance. Acquired by DigiCert in September 2024, Vercara serves over 2,000 enterprises, including Fortune 500 companies, across industries like finance, e-commerce, and healthcare. Its solutions emphasize uptime, security, and scalability for complex digital infrastructures. Vercara handles approximately 30% of global internet traffic, processing over 9 trillion DNS queries daily.
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.
Vercara operates a global network with points of presence (POPs) across 16 regions, including a recently added node in Toronto. Its UltraDNS service ensures low-latency DNS resolution, and its DDoS mitigation network has a capacity exceeding 15 Tbps. The platform is designed for high availability, with a reported 100% uptime for DNS services. It has strong regional coverage in North America, EMEA, and APAC, serving global enterprises with hybrid cloud setups. Specific peering and routing details are not publicly disclosed, but Vercara’s infrastructure supports major hyperscalers and high-traffic verticals.
Feature comparison
| Feature | CDNSun | Vercara |
|---|---|---|
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/.
Vercara operates on an enterprise-only model, with pricing tailored to customer needs and no public per-GB rates disclosed. It does not offer a free tier or pay-as-you-go options, focusing on committed contracts for large organizations. Specific pricing details are available only through direct sales consultation. No public pricing page is provided.
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).
Vercara supports Terraform for infrastructure automation, integrating with DevOps workflows. Its API-first design enables programmatic control of DNS and security services. Real-time logs are available for monitoring, though log push or streaming capabilities are not explicitly documented. Integration with HashiCorp Consul-Terraform-Sync enhances DNS management automation. Migration tools or specific SDKs are not publicly detailed, but Vercara’s enterprise focus suggests customized onboarding support.
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.
- Large enterprises needing robust DNS and DDoS protection with 100% uptime guarantees.
- Organizations with hybrid cloud setups requiring integrated DNS and certificate management.
- High-traffic industries like finance or e-commerce needing scalable security solutions.
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.
- Small businesses or startups seeking pay-as-you-go or free-tier CDN options.
- Users needing transparent pricing or self-service onboarding without sales consultation.
- Applications requiring advanced video streaming features like HLS/DASH packaging or DRM.
History & Notes
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