Company

Company	Edgecast	Imperva
Short profile	The Edgecast Platform is a division of Yahoo. In 2013, Verizon acquired Edgecast's Content Delivery Network (CDN) along with upLynk's video workflow technology to create a next-generation platform. This platform streamlines the streaming video workflow including encoding, SSAI and delivery, plus accelerates and secures websites and content for broadcasters, retailers and enterprises. In 2021, Edgecast became part of Yahoo.	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
• = Unknown

Product	Edgecast	Imperva
Dynamic content deliveryNon-cacheable content delivery. User login, shopping cart ...	Network	Content Delivery Network
Small file deliveryStatic object delivery; caching of small files (file size <1 MB)	Network	Content Caching
Large file deliveryStatic object delivery; caching of large files (file size >1 MB)	Network
Live videoDelivery of live video. RTMP? Transcoding/transmuxing?	Live Events
Video on demandDelivery of on demand video	Encode
Image OptimizationAutomatic image transformation/compression/optimization	Dynamic Imaging	Image Compression
DNSAuthoritative DNS for customer domain	DNS	Name Server (NS) Protection 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	DDoS Protection
Private CDNDedicated edge resources & custom configs
Edge ComputeRun your code on CDN edge servers	Edge Compute Rules and Lua scripting

Network

Region	Edgecast	Imperva
North America	18	11
Latin America	12	3
Europe	15	11
Russia & CIS	0	1
Asia excl. China	12	11
China	100	0
Oceania	3	3
Middle-East	3	3
Africa	2	1

Pricing

Pricing & contract duration	Edgecast	Imperva
Minimum contract term	Unknown	Unknown
Minimum monthly costs	Unknown	Unknown
Requests costsCustomers pay for client to CDN requests	Unknown	Unknown
Ingress costsCustomers pay for origin-to-CDN bytes transferred	Unknown	Unknown
NA/EU traffic (low volume)	Unknown	Unknown
APAC traffic (low volume)	Unknown	Unknown
LATAM traffic (low volume)	Unknown	Unknown

Features

• = Yes
• = Sort of/partially
• = No
• = Extra costs
• = Unknown

Web acceleration	Edgecast	Imperva
Instant setupSign up, configure, start testing.	Available through Microsoft Azure
Change propagation delayHow fast do config changes propagate to all POPs?	A few minutes	Instant
Apex/root domain OK No performance degradation when using http(s)://domain.com	Anycasted network (regional)	Anycasted network (regional)
HTTP/2		FAQ
IPv6Do the edge servers have IPv6?		IPv6 support
Compression Reduce file size for faster delivery	Resend from origin, or compress on edge	Compress on the edge
Origin pull - protocolHTTP only or HTTPS possible too?	HTTP and HTTPS	HTTP and HTTPS. Can be IP address
Origin pull - Host headerUse client > edge value? Set specific value?	Configure specific other Host header	Can configure specific other Host header. Forward client request Host header is possible
Origin ShieldOne POP pulls from origin, other POPs pull from the shield POP	Single POP shield or multiple. Full control
Push / uploadStore your content directly on CDN, no customer origin	Origin Storage
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 serves cached but expired content in case origin is in trouble
Purge Invalidate or delete cached objects on CDN	No longer than 1 min, often much faster	Instant
Purge - capabilities	Purge all, purge by directory, by file extension	Purge all, by directory, by file extension, by tag(s)
Analytics	Real-time, with many metrics in the UI	Real time perf and security events dashboard
Log files	< 60 seconds	Available via UI, API, or full SIEM integration Logs are not delayed
API	Purge, analytics, configuration	Purge, analytics, configuration

HTTPS & Content Protection	Edgecast	Imperva
CDN domain HTTPSUse the CDN's domain, like cloudfront.net		CDN and SSL/TLS
Customer domain HTTPSYour domain in the CDN's certificate	Non-SNI. Pricing is custom. Wildcard possible
Customer cert HTTPSYour certificate on the CDN	Pricing is custom
Token authentication	Included as core feature	Via authentication header
Geo blocking	Included as core feature
Hotlink protectionThird parties cannot deeplink to your content	Included as core feature
Basic authenticationUser logs in on the CDN to get content	Supported via special configuration	Two Factor Authentication
IP white/blacklisting	Included as core feature	IP address/ranges/subnets, self-service in UI

Support

Customer support	Edgecast	Imperva
Documentation	Yes, public	Yes, public
Humans	All customers get 24/7 email and phone support.	Imperva’s team of support engineers deliver technical assistance 24x7x365 via phone, email, or online via the self service portal