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Imperva versus CenturyLink

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

Imperva logo CenturyLink logo

Company

Company Imperva CenturyLink
Short profile 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. CenturyLink owns and operates a global Tier-1 network and - logically - their CDN runs on top of it. CenturyLink CDN has POPs on all continents and their product focus is on video and large object delivery. CenturyLink CDN is part of the Google Cloud CDN Interconnect.

Products

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

Network

Region Imperva CenturyLink
North America 11 29
Latin America 3 9
Europe 11 36
Russia & CIS 1 0
Asia excl. China 11 7
China 0 0
Oceania 3 4
Middle-East 3 4
Africa 1 3

Pricing

Pricing & contract duration Imperva CenturyLink
Minimum contract term Unknown 12 months
Minimum monthly costs Unknown Unknown
Requests costsCustomers pay for client to CDN requests Unknown None
Ingress costsCustomers pay for origin-to-CDN bytes transferred Unknown None
NA/EU traffic (low volume) Unknown Unknown
APAC traffic (low volume) Unknown Unknown
LATAM traffic (low volume) Unknown Unknown

Features

  • Yes = Yes
  • Sortof/partially = Sort of/partially
  • No = No
  • Extra costs = Extra costs
  • Unknown = Unknown
Web acceleration Imperva CenturyLink
Instant setupSign up, configure, start testing. Yes No Can't sign up and get started. Must talk to sales.
Change propagation delayHow fast do config changes propagate to all POPs? Yes Instant Unknown
Apex/root domain OK Blog: Root domain on CDN and performanceNo performance degradation when using http(s)://domain.com Yes Anycasted network (regional) No No global Anycast
HTTP/2 Yes FAQ No
IPv6Do the edge servers have IPv6? Yes IPv6 support Unknown
Compression CDN Guide: CompressionReduce file size for faster delivery Yes Compress on the edge Sortof/partially Resend from origin only
tooltip Does not compress on the edge
Origin pull - protocolHTTP only or HTTPS possible too? Yes HTTP and HTTPS.
tooltip Can be IP address
Yes HTTP and HTTPS.
Origin pull - Host headerUse client > edge value? Set specific value? Yes Can configure specific other Host header.
tooltip Forward client request Host header is possible
Yes Configure specific other Host header
tooltip CDN can also forward client request Host header to origin
Origin ShieldOne POP pulls from origin, other POPs pull from the shield POP Extra costs Extra costs
Push / uploadStore your content directly on CDN, no customer origin No Extra costs FTP, SFTP, rsync. Storage costs apply
Cache control - CDN caching Yes Granular control/override rules possible Sortof/partially
Cache control - client caching Yes Granular control/override rules possible Sortof/partially
Serve Stale CDN Guide: Serve StaleCDN serves cached but expired content in case origin is in trouble Yes Unknown
Purge CDN Guide: PurgeInvalidate or delete cached objects on CDN Yes Instant Yes Instant
Purge - capabilities Yes Purge all, by directory, by file extension, by tag(s) Sortof/partially Purge all but not purge by directory or tag or header
Analytics Yes Real time perf and security events dashboard Yes
Log files Yes Available via UI, API, or full SIEM integration
tooltip Logs are not delayed
Yes
tooltip Logs are 24h delayed
API Yes Purge, analytics, configuration Sortof/partially Purge, analytics, configuration (but limited)
HTTPS & Content Protection Imperva CenturyLink
CDN domain HTTPSUse the CDN's domain, like cloudfront.net Yes CDN and SSL/TLS No
Customer domain HTTPSYour domain in the CDN's certificate Yes Extra costs
Customer cert HTTPSYour certificate on the CDN Yes Extra costs
Token authentication Yes Via authentication header Extra costs
Geo blocking Yes Extra costs
Hotlink protectionThird parties cannot deeplink to your content Yes Unknown
Basic authenticationUser logs in on the CDN to get content Yes Two Factor Authentication Unknown
IP white/blacklisting Yes IP address/ranges/subnets, self-service in UI Unknown

Support

Customer support Imperva CenturyLink
Documentation Yes Yes, public Sortof/partially Yes, but not public
Humans Yes Imperva’s team of support engineers deliver technical assistance 24x7x365 via phone, email, or online via the self service portal Yes All customers get 24/7 email and phone support