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Fastly versus Imperva

Easily compare Fastly and Imperva for POP locations, products, pricing, features & support. We hope this helps you better understand the similarities and differences between these content delivery networks.

Fastly logo Imperva logo

Company

Company Fastly Imperva
Short profile Founded in 2011, Fastly has grown into a mature CDN provider. Fastly offers a range of services including streaming media delivery and private CDN but Fastly is best known for being a 'real-time CDN', meaning changes happen instantly and the platform can deliver 'uncacheable' content well. Imperva's CDN (formerly Incapsula) makes your websites and applications faster, more reliable and safer. A global network of servers provides content caching, load balancing and failover, while an enterprise-grade cloud web application firewall and DDoS protection safeguard your site from the latest threats.

Products

  • Yes = Yes
  • Sortof/partially = Sort of/partially
  • No = No
  • Unknown = Unknown
Product Fastly Imperva
Dynamic content deliveryNon-cacheable content delivery. User login, shopping cart ... Yes Yes Content Delivery Network
Small file deliveryStatic object delivery; caching of small files (file size <1 MB) Yes Yes Content Caching
Large file deliveryStatic object delivery; caching of large files (file size >1 MB) Yes Yes
Live videoDelivery of live video. RTMP? Transcoding/transmuxing? Yes No
Video on demandDelivery of on demand video Yes Video on Demand No
Image OptimizationAutomatic image transformation/compression/optimization Yes Image Optimizer Yes Image Compression
DNSAuthoritative DNS for customer domain No Sortof/partially Name Server (NS) Protection
tooltip Name Server (NS) Protection is a secure proxy in front of your authoritative DNS
WAFWeb Application Firewall Yes Web application firewall Yes Web Application Firewall
Anti-DDoSDDoS attack protection. Specific product(s) for this. Yes DDoS Mitigation Yes DDoS Protection
Private CDNDedicated edge resources & custom configs Yes Fastly Managed CDN No
Edge ComputeRun your code on CDN edge servers Unknown Compute@Edge Unknown

Network

Region Fastly Imperva
North America 17 11
Latin America 6 3
Europe 13 11
Russia & CIS 0 1
Asia excl. China 7 11
China 0 0
Oceania 6 3
Middle-East 1 3
Africa 2 1

Pricing

Pricing & contract duration Fastly Imperva
Minimum contract term None Unknown
Minimum monthly costs $50 Unknown
Requests costsCustomers pay for client to CDN requests $0.0075 - $0.016 per 10k requests Unknown
Ingress costsCustomers pay for origin-to-CDN bytes transferred None Unknown
NA/EU traffic (low volume) $0.12 per GB Unknown
APAC traffic (low volume) $0.19 per GB Unknown
LATAM traffic (low volume) $0.28 per GB Unknown

Features

  • Yes = Yes
  • Sortof/partially = Sort of/partially
  • No = No
  • Extra costs = Extra costs
  • Unknown = Unknown
Web acceleration Fastly Imperva
Instant setupSign up, configure, start testing. Yes Yes
Change propagation delayHow fast do config changes propagate to all POPs? Yes Instant! Yes Instant
Apex/root domain OK Blog: Root domain on CDN and performanceNo performance degradation when using http(s)://domain.com Yes Global anycast IPs are available Yes Anycasted network (regional)
HTTP/2 Yes Yes FAQ
IPv6Do the edge servers have IPv6? Yes IPv6 at Fastly Yes IPv6 support
Compression CDN Guide: CompressionReduce file size for faster delivery Yes Resend from origin, or compress on edge. Brotli! Yes Compress on the edge
Origin pull - protocolHTTP only or HTTPS possible too? Yes HTTP and HTTPS Yes HTTP and HTTPS.
tooltip Can be IP address
Origin pull - Host headerUse client > edge value? Set specific value? Yes Can be different from origin host Yes Can configure specific other Host header.
tooltip Forward client request Host header is possible
Origin ShieldOne POP pulls from origin, other POPs pull from the shield POP Yes Also available as separate product (Media Shield) Extra costs
Push / uploadStore your content directly on CDN, no customer origin No No
Cache control - CDN caching Yes Full and granular control Yes Granular control/override rules possible
Cache control - client caching Yes Full and granular control Yes Granular control/override rules possible
Serve Stale CDN Guide: Serve StaleCDN serves cached but expired content in case origin is in trouble Yes Cache-Control extensions support Yes
Purge CDN Guide: PurgeInvalidate or delete cached objects on CDN Yes Instant! Yes Instant
Purge - capabilities Yes Purge all and by key Yes Purge all, by directory, by file extension, by tag(s)
Analytics Yes Real-time! Yes Real time perf and security events dashboard
Log files Yes Real-time streaming of logs to your server Yes Available via UI, API, or full SIEM integration
tooltip Logs are not delayed
API Yes Purge, analytics, configuration Yes Purge, analytics, configuration
HTTPS & Content Protection Fastly Imperva
CDN domain HTTPSUse the CDN's domain, like cloudfront.net Yes Free for first 5 domains, $20 per additional domain Yes CDN and SSL/TLS
Customer domain HTTPSYour domain in the CDN's certificate Extra costs $100/m per FQDN, $275/m for wildcard domain Yes
Customer cert HTTPSYour certificate on the CDN Extra costs EV cert possible. Yes
Token authentication Yes Enabling URL token validation Yes Via authentication header
Geo blocking Yes Yes
Hotlink protectionThird parties cannot deeplink to your content Yes Creating and using Edge Dictionaries Yes
Basic authenticationUser logs in on the CDN to get content Yes Authenticating before returning a request Yes Two Factor Authentication
IP white/blacklisting Yes About Edge ACLs Yes IP address/ranges/subnets, self-service in UI

Support

Customer support Fastly Imperva
Documentation Yes Yes, public Yes Yes, public
Humans Yes Email support during business hours is free. Pay extra if you need more/better. Two paid plans available Yes Imperva’s team of support engineers deliver technical assistance 24x7x365 via phone, email, or online via the self service portal