Company snapshot
| Category | Fastly | Imperva |
|---|---|---|
| Status | active | active |
| Founded | — | — |
| Headquarters | — | — |
| Website | — | — |
| Docs | — | — |
Overview
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.
Imperva provides a cloud-based CDN integrated with its Web Application and API Protection (WAAP) platform, focusing on security and performance. The service includes content caching, load balancing, and global Points of Presence (PoPs) to deliver low-latency web experiences. It offers robust DDoS protection, a Web Application Firewall (WAF), and bot mitigation, making it suitable for enterprises prioritizing security. Imperva serves industries like finance, healthcare, and e-commerce, with clients such as Mediolanum and Vodafone. The company, founded in 2002 and headquartered in San Mateo, California, was acquired by Thales in 2019. Its CDN is part of a broader cybersecurity suite, emphasizing secure content delivery.
Network & Architecture
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.
Imperva operates a global network with PoPs in North America, EMEA, APAC, and LATAM, including data centers in cities like Tokyo, New Delhi, and Miami. The exact number of PoPs is not publicly disclosed, but the network supports traffic rerouting during maintenance to ensure availability. It uses machine learning for dynamic caching and integrates with major peering partners for optimized routing. Regional strengths include North America and EMEA, with ongoing expansions in APAC and LATAM. Maintenance schedules, such as the August 2025 migrations in Hong Kong and Paris, ensure minimal disruption for Cloud WAF customers. Limitations include less transparency on PoP counts compared to competitors like Cloudflare.
Feature comparison
| Feature | Fastly | Imperva |
|---|---|---|
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
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.
Imperva uses a pay-as-you-go (PAYG) model with enterprise-focused pricing, typically requiring custom quotes. No free tier or public per-GB pricing is available, as plans are tailored for high-security use cases. Volume-based discounts are offered for committed contracts. Pricing details are available at https://www.imperva.com/pricing/. The model suits large organizations but may be cost-prohibitive for smaller businesses.
Integrations & DevEx
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.
Imperva provides APIs for configuration and management, supporting an API-first approach. Realtime logs and analytics are accessible via the Imperva Management Portal, with log push for integration into external systems. No public documentation confirms Terraform or specific SDK support, limiting Infrastructure-as-Code (IaC) options. Migration tools are not emphasized, but the platform supports standard CDN configurations. Developers may find the API robust but less flexible for CI/CD pipelines compared to Fastly or Akamai.
When it fits
- 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.
- Enterprises needing a CDN with strong security features like WAF and DDoS protection.
- Businesses in regulated industries (e.g., finance, healthcare) requiring robust compliance and bot mitigation.
- Organizations with global audiences benefiting from Imperva’s PoP distribution and low-latency delivery.
When it doesn’t
- 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.
- Small businesses or startups seeking cost-effective, free-tier, or transparent pricing models.
- Developers needing extensive IaC support, such as Terraform or advanced CI/CD integrations.
- Companies focused on edge compute or serverless functions, which Imperva does not currently offer.
History & Notes
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