Company snapshot
| Category | Comcast | Fastly |
|---|---|---|
| Status | active | active |
| Founded | — | — |
| Headquarters | — | — |
| Website | — | — |
| Docs | — | — |
Overview
Comcast operates a content delivery network (CDN) focused on delivering video streaming and low-latency content for ISPs and content providers. As a major U.S. telecommunications provider, Comcast leverages its extensive network infrastructure to support high-quality live sports streaming and video-on-demand services. The CDN, enhanced by partnerships like Qwilt, serves content providers seeking reliable delivery within Comcast’s broadband footprint. It primarily caters to enterprise clients, including those requiring high-bitrate streaming for events like the Paris Olympics in 2024. Comcast’s CDN is integrated with its broader connectivity services, targeting users within its 63 million U.S. locations.
Fastly is a global content delivery network (CDN) and edge cloud platform founded in 2011, headquartered in San Francisco, USA. It focuses on delivering fast, secure, and customizable content delivery and edge computing services. Fastly serves a range of enterprise customers, including The New York Times, GitHub, Spotify, and Pinterest, with a developer-centric approach. Its platform emphasizes real-time control, analytics, and edge computing capabilities. Fastly went public in 2019 and remains active, though it has faced challenges with outages and industry slowdowns.
Network & Architecture
Comcast’s CDN operates across its U.S. network, covering 63 million locations, with points of presence (PoPs) optimized for North America. The network uses Qwilt’s Open Edge platform for content caching and delivery, built on Open Caching specifications from the Streaming Video Technology Alliance. It supports high-quality streaming, including 4K UHD, with a focus on live sports and video-on-demand. Routing benefits from Comcast’s backbone infrastructure, but its regional focus limits global coverage. Peering with major ISPs enhances performance in the U.S., though competition from fixed wireless providers like Verizon and T-Mobile impacts its broadband market share.
Fastly operates over 60 points of presence (POPs) globally, with a focus on major population centers for low-latency content delivery. Its global anycast network optimizes routing, but its smaller POP count compared to competitors like Akamai or Cloudflare may limit coverage in some regions. Fastly has strong peering agreements, enhancing performance for high-traffic sites. It excels in North America, EMEA, and APAC but has less presence in Africa and LatAm. The platform leverages WebAssembly for edge computing isolation and resiliency.
Feature comparison
| Feature | Comcast | Fastly |
|---|---|---|
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
Comcast’s CDN pricing is enterprise-only, with no public pay-as-you-go or free-tier options. Costs are typically negotiated based on volume and contract terms, targeting large content providers. No specific per-GB pricing is publicly available, and no pricing page is listed on the official CDN portal.
Fastly uses a pay-as-you-go (PAYG) model with pricing based on data transfer ($0.12–$0.19 per GB) and requests ($0.0075 per 10,000). Additional features like WAF or edge computing may incur extra costs. No free tier is offered, and pricing targets enterprise users. Full details are available at https://www.fastly.com/pricing.
Integrations & DevEx
Comcast’s CDN offers API-first integration for content management and monitoring, with support for realtime logs. No public documentation confirms Terraform support, SDKs, or CI/CD integrations. Migration tools or import capabilities are not detailed, suggesting a focus on enterprise clients with custom onboarding processes.
Fastly supports Terraform for infrastructure-as-code, with recent updates like the Terraform Provider 7.1.0 adding domain metadata and IPv6 preferences. It offers SDKs and APIs for custom integrations, CI/CD pipelines, and real-time analytics. Realtime logs and log-push capabilities integrate with monitoring tools like Splunk or Datadog. Migration tools are limited, but the API-first design simplifies configuration for developers.
When it fits
- Enterprises needing high-bitrate live video streaming, like sports or events, within the U.S.
- Content providers integrated with Comcast’s broadband network for low-latency delivery.
- Organizations seeking a telecom-backed CDN with strong North American coverage.
- Enterprises needing real-time control and analytics for dynamic content delivery.
- Developers requiring edge computing with Compute@Edge for serverless applications.
- Sites with high-traffic demands in North America, EMEA, or APAC regions.
When it doesn’t
- Businesses requiring global CDN coverage beyond North America.
- Small or medium-sized businesses looking for pay-as-you-go or free-tier pricing models.
- Users needing advanced security features like WAF or DDoS protection, which are not publicly documented.
- Small businesses seeking free tiers or simpler, budget-friendly CDN options.
- Users needing extensive POP coverage in Africa or Latin America.
- Applications requiring advanced video streaming features like HLS/DASH packaging or DRM.
History & Notes
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