CDN77

Overview

CDN77, founded in 2012 and headquartered in Prague, Czech Republic, is a provider focused on high-performance CDN acceleration. Its philosophy is "performance first"—all 35+ edge nodes use NVMe SSD storage, deeply optimized Nginx, and BGP Anycast routing. Core customers are European enterprises across e-commerce, SaaS, gaming, and media. The Image Optimizer processes images in real time at the edge, auto-converting to WebP/AVIF with smart cropping, compressing image size 60%-80%.

Architecturally, the proprietary engine is deeply customized from Nginx (event-driven optimization, zero-copy file transfer, kernel parameter tuning), with per-node concurrency far above standard Nginx; all nodes sit in Tier 3+ data centers with redundant power, multi-path BGP, and 24/7 security. Positioned against Bunny CDN, Cloudflare, and KeyCDN, its premium comes from extreme performance and deep support—a top pick in the CDN provider selection guide for Europe-facing performance-sensitive scenarios.

Key Strengths

• High-performance infrastructure: All edge nodes use NVMe SSD arrays with microsecond 4K random I/O; deeply customized Nginx (higher worker connections, sendfile, TCP_NOPUSH, kernel TCP tuning) with HTTP/2 multiplexing, Brotli (20%-30% better than gzip), and TLS 1.3 zero-RTT; median static TTFB of 15-30ms across major European cities.
• Outstanding image optimization: Image Optimizer runs at edges with WebP/AVIF auto-conversion, JPEG quality adjustment, smart crop/scale, and metadata stripping via URL parameters or console policies without origin changes; typical size reduction 60%-80% with better mobile weak-network loading and Core Web Vitals.
• 24/7 professional support: Average 15-minute first response (industry 1-4 hours), with engineers skilled in networking, Nginx, DNS, and TLS to debug cache conflicts, cross-origin errors, and SSL handshake failures.
• Comprehensive RESTful API: Cache purge (single URL, by tag, full site), full Pull Zone lifecycle, real-time analytics, and log export with read/write API key separation; CI/CD integration for post-deploy purge; SDKs for PHP, Python, Node.js, Ruby.
• Excellent European node quality: Hubs at Frankfurt, London, Amsterdam, Paris, and Prague with direct IXP and Tier 1 backbone access; 10-25ms latency between major European cities and 40%-60% dynamic acceleration gains.

Product Ecosystem

CDN Content Acceleration

Pull and Push Zones covering static, dynamic, and streaming with HTTP/2, Brotli, and TLS 1.3 on all nodes.

CDN77 Image Optimizer

Edge real-time image engine with WebP/AVIF auto-conversion, smart crop/scale, and JPEG quality adjustment, billed on processed output at $0.01/GB without origin changes.

Streaming Acceleration

HLS and MPEG-DASH delivery for live and VOD, with European low latency; see video streaming CDN acceleration.

Secure Acceleration

Basic DDoS protection (L3/L4), token anti-hotlinking, free Let's Encrypt auto-issue and custom certificates, with HSTS and OCSP Stapling support.

Real-time Analytics and Logs

Minute-granularity traffic, bandwidth, and cache hit ratio monitoring with log export and scheduled reports.

Limitations

• Medium node count: Only 35+ global edge nodes versus Cloudflare (330+ cities) and Bunny CDN (100+); insufficient density for global coverage; use multi-CDN load balancing.
• Higher price, cost-sensitive for large traffic: Standard traffic ~$0.049/GB, about 5x Bunny CDN ($0.01/GB); significant bill differences for 10TB+/month sites; see the CDN cost optimization guide.
• Limited Asia and South America coverage: Europe-focused with only Singapore and Tokyo in Asia and minimal South America; use smart DNS for cross-region load sharing.
• Basic security features: No enterprise WAF custom rules or Bot management; pair with standalone security for sensitive scenarios.

Use Cases

• Europe-focused mid-to-large sites (★★★★★): E-commerce, SaaS, news, or online education for European consumers benefit from superior European network quality and density.
• Image-heavy websites and e-commerce (★★★★★): Image Optimizer cuts image size without visual loss; sites with 60%+ images see 40%-60% faster loading.
• Teams needing deep technical support (★★★★): Teams without dedicated ops benefit from 15-minute responses and engineer-level help with cache rules, HTTPS, and cross-origin issues.
• SaaS and API acceleration (★★★★): Nginx optimization and BGP Anycast boost dynamic content; European SaaS can cut API latency 40%-60% with failover to cached copies.
• Global / multi-region coverage (★★☆): Europe-centric with only 35+ global nodes; use multi-CDN load balancing with CDN77 as the European tier.

Pricing

FAQ

• How to choose with Bunny CDN / KeyCDN? CDN77 sells extreme performance (NVMe + Nginx) and deep support at the highest price ($0.049/GB); Bunny CDN sells ultra-low price ($0.01/GB) and 100+ nodes; KeyCDN sits between ($0.04/GB) with API-driven design—choose CDN77 for performance-sensitive European markets.
• Is it suitable for Chinese users? No directly operated mainland nodes; domestic access via Hong Kong/Singapore is 80-150ms; use licensed Chinese CDNs for mainland-facing sites; see cross-border website CDN acceleration.
• How is image optimization billed and effective? Image Optimizer bills $0.01/GB on processed output, cutting typical image size 60%-80% with 85%+ visual fidelity, auto WebP/AVIF based on edge browser detection; see the image optimization CDN guide.
• Does it support HTTPS and SSL/TLS? Yes, free Let's Encrypt auto-issue/renewal and custom certificates with full TLS 1.2/1.3, HSTS, and OCSP Stapling; HTTPS impact on TTFB is under 5ms; see CDN SSL/TLS best practices.
• Are there minimums or long-term contracts? No monthly minimum or forced contracts; usage-based with a 14-day unlimited free trial without card binding; annual contracts for volume discounts or custom SLA; see the CDN beginner's guide.