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

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

Support

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