Overview

Cotendo was one of the most innovative early CDN companies, shaking up the CDN acceleration market with Dynamic Site Acceleration (DSA). Founded around 2005 in California, United States, it pioneered "full-content acceleration," optimizing static assets, dynamic APIs, database queries, and mobile traffic simultaneously, winning clients like eBay, LinkedIn, and NBC Universal.

Through TCP optimization (FastTCP), HTTP pipelining, content prefetching, and smart compression, Cotendo improved dynamic content transport by 30%-50%. In 2011 Akamai acquired Cotendo for about $280M, deeply integrating its dynamic and mobile acceleration into the Akamai Intelligent Edge Platform. Cotendo no longer operates independently, but its technology continues to power the Akamai platform.

Key Strengths

  • Pioneer in dynamic acceleration: Proprietary FastTCP optimizes congestion control, outperforming contemporaneous Akamai dynamic acceleration by 15%-25% on non-cacheable pages; pipelining and prefetch cut TTFB by over 40%.
  • Full-scenario acceleration: Static caching, dynamic protocol optimization, and mobile adaptation "trinity"; Mobile Acceleration cut page load by 50% on 3G/4G.
  • Broad enterprise base: Served eBay, LinkedIn, NBC Universal, and Coupon.com at its peak; eBay reported a 35% average global page-load reduction.
  • Legacy integrated into Akamai: Dynamic acceleration engine, mobile algorithms, and smart routing migrated intact; Akamai's Dynamic Site Accelerator traces back to Cotendo.

Product Ecosystem

Dynamic Content Acceleration (DSA)

FastTCP and smart routing for non-cacheable content.

Static Content Acceleration

Global node caching for images, CSS, and JS.

Mobile Acceleration

TCP handshake optimization, TLS session reuse, and adaptive compression.

Enterprise Services

High-concurrency experience for clients like eBay and LinkedIn.

Limitations

  • Brand no longer independent: No new customers since the 2011 acquisition; access requires Akamai enterprise sales with a high barrier.
  • No standalone console or API: Replaced by Akamai's Luna Control Center; legacy users must migrate to the Akamai system.
  • Fading historical resources: Docs, whitepapers, and forums are going offline; see the CDN industry competition analysis.
  • No SMB plans: Always enterprise-focused with no self-service free/low-cost tiers; small sites should use Cloudflare or Bunny CDN.

Use Cases

Given Cotendo no longer operates independently, these assess using its legacy via Akamai and its historical reference value.

  • Studying CDN evolution (★★★★★): Captures the shifts from static caching to dynamic acceleration and from pure CDN to full-stack acceleration.
  • Akamai enterprise dynamic acceleration (★★★★★): Dynamic Site Accelerator is the direct successor; see the CDN provider selection guide.
  • Large e-commerce dynamic acceleration (★★★★): Product pages, search, cart, and checkout with non-cacheable content; FastTCP and pipelining excel.
  • Global social media acceleration (★★★★): Feeds, push, and messaging dynamic API requests; strong for short-connection, small-packet scenarios.
  • Studying CDN M&A (★★★): Acquired at an 18x annual revenue valuation, a classic industry case.

Pricing

Cotendo no longer accepts new customers; historical prices (from 2010-2011 public info) and current Akamai framework:

Service Historical Pricing Current Akamai
Static Content ~$0.02-0.08/GB Custom quote
Dynamic Acceleration (DSA) ~$0.01-0.03/1k requests Dynamic Site Accelerator custom
Mobile Acceleration ~$0.03-0.10/GB In standard plans
Security Basic DDoS included Akamai WAF/DDoS add-on
Minimum Monthly $1,000-5,000/month Enterprise $5,000+/month

Pricing notes:

  • Historical prices are reference only; all services are now priced and delivered by Akamai
  • Dynamic acceleration typically costs more than static
  • See the CDN cost optimization guide for current market pricing

FAQ

  • Can I still sign up today? No; no new customers since the 2011 acquisition; core technology lives on in Akamai; alternatives in the CDN provider selection guide.
  • Is its dynamic acceleration still leading? It led at launch, but Akamai, Cloudflare, and Fastly now all offer mature dynamic acceleration; Akamai's Dynamic Site Accelerator far exceeds Cotendo's original level; see the CDN industry competition analysis.
  • What is the relationship with Akamai? Akamai acquired Cotendo in 2011 for its dynamic and mobile acceleration technology, integrating it and retaining the core team; the brand no longer operates independently; see the Akamai product line.
  • Should I choose Cotendo (via Akamai) or another CDN? Akamai enterprise customers can use Dynamic Site Accelerator directly; otherwise evaluate Akamai, Cloudflare, Fastly, and Bunny CDN; see the CDN comparison.
  • Is its technology relevant to individual site owners? Not directly usable, but the static+dynamic+mobile philosophy is instructive; see the CDN beginner's guide.