Comparison

Fastly Next-Gen WAF vs Imperva WAF

No leader: the top candidate Imperva WAF has only 0.34 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Fastly Next-Gen WAF full profile →Imperva WAF full profile →

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.

Fastly Next-Gen WAF45

Imperva WAF53

Attribute comparison across 2 tools
Attribute	Fastly Next-Gen WAF	Imperva WAF
vioscaleAI score	45 / 100medium · 55%	53 / 100low · 34%
Pricing
Free tierpricing.free_tier	✓	-
Modelpricing.model	freemium	-
Price levelpricing.price_level	low	-
Starting pricepricing.starting_price	$0.10	-
Transparentpricing.transparent	✗	-
Integrations
Countintegrations.count	5	6
Security
Gdprsecurity.gdpr	✓	✓
Hipaasecurity.hipaa	✓	✓
Iso27001security.iso27001	-	✓
Pcisecurity.pci	✓	✓
Trust centersecurity.trust_center	https://www.fastly.com/security-research	https://www.imperva.com/resources/resource-library/datasheets/security-analyst-services/
Market
Availabilitymarket.availability	Available worldwide	-
Content
Faqcontent.faq	6 items	5 items

Score

vioscaleAI score

Fastly Next-Gen WAF45 / 100medium · 55%

Imperva WAF53 / 100low · 34%

Pricing

Free tier

Fastly Next-Gen WAF✓

Imperva WAF–

Model

Fastly Next-Gen WAFfreemium

Imperva WAF–

Price level

Fastly Next-Gen WAFlow

Imperva WAF–

Starting price

Fastly Next-Gen WAF$0.10

Imperva WAF–

Transparent

Fastly Next-Gen WAF✗

Imperva WAF–

Integrations

Count

Fastly Next-Gen WAF5

Imperva WAF6

Security

Gdpr

Fastly Next-Gen WAF✓

Imperva WAF✓

Hipaa

Fastly Next-Gen WAF✓

Imperva WAF✓

Iso27001

Fastly Next-Gen WAF–

Imperva WAF✓

Pci

Fastly Next-Gen WAF✓

Imperva WAF✓

Trust center

Fastly Next-Gen WAFhttps://www.fastly.com/security-research

Imperva WAFhttps://www.imperva.com/resources/resource-library/datasheets/security-analyst-services/

Market

Availability

Fastly Next-Gen WAFAvailable worldwide

Imperva WAF–

Content

Faq

Fastly Next-Gen WAF6 items

Imperva WAF5 items

Capabilities

Feature-by-feature on the axes that matter for waf. “-” means undocumented, not absent.

Capability comparison for WAF
Capability	Fastly Next-Gen WAF	Imperva WAF
Capabilities
Deployment model	Hybrid	Hybrid
Owasp top 10 protection	✓	✓
Custom rules engine	✓	✓
Bot management	✓	✓
API discovery protection	✓	✓
Ddos l7 protection	✓	-
Rate limiting	✓	-
Threat intel feeds	✓	-
SIEM logging integration	✓	✓
Kubernetes ingress support	-	✓
SOC2 type ii	-	-
PCI DSS compliant	-	✓
Fedramp authorized	-	-
Pricing model	Usage based	-

Capabilities

Deployment model

Fastly Next-Gen WAFHybrid

Imperva WAFHybrid

Owasp top 10 protection

Fastly Next-Gen WAF✓

Imperva WAF✓

Custom rules engine

Fastly Next-Gen WAF✓

Imperva WAF✓

Bot management

Fastly Next-Gen WAF✓

Imperva WAF✓

API discovery protection

Fastly Next-Gen WAF✓

Imperva WAF✓

Ddos l7 protection

Fastly Next-Gen WAF✓

Imperva WAF-

Rate limiting

Fastly Next-Gen WAF✓

Imperva WAF-

Threat intel feeds

Fastly Next-Gen WAF✓

Imperva WAF-

SIEM logging integration

Fastly Next-Gen WAF✓

Imperva WAF✓

Kubernetes ingress support

Fastly Next-Gen WAF-

Imperva WAF✓

SOC2 type ii

Fastly Next-Gen WAF-

Imperva WAF-

PCI DSS compliant

Fastly Next-Gen WAF-

Imperva WAF✓

Fedramp authorized

Fastly Next-Gen WAF-

Imperva WAF-

Pricing model

Fastly Next-Gen WAFUsage based

Imperva WAF-

What each one is

The product in its own terms, so the numbers below have context.

Fastly Next-Gen WAF

A cloud-native security solution that protects web applications and APIs from advanced threats including credential-based account takeovers, malicious bots, and API abuse, providing real-time visibility and DevOps toolchain integration.

Independently observed

Imperva WAF

A web application firewall providing real-time threat blocking with integrated bot protection and API security. Uses machine learning to defend against OWASP Top 10 vulnerabilities with simplified deployment and automated rule updates.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Fastly Next-Gen WAF

Usage-basedFree tier

Free tier available; usage-based pricing with volume discounts; enterprise custom pricing

FreeFree
Growth-
EnterpriseContact sales

as of 2026-09-29verify ↗

Imperva WAF

Pricing not documented yet.

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platform and deployment support comparison
Supports	Fastly Next-Gen WAF	Imperva WAF
WebPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✓	✓
HybridDeployment	✓	✓

Platforms

Web

Fastly Next-Gen WAF✓

Imperva WAF✓

Deployment

Cloud / SaaS

Fastly Next-Gen WAF✓

Imperva WAF✓

Self-hosted

Fastly Next-Gen WAF✓

Imperva WAF✓

On-premise

Fastly Next-Gen WAF✓

Imperva WAF✓

Hybrid

Fastly Next-Gen WAF✓

Imperva WAF✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Fastly Next-Gen WAF

5 total

Slack
PagerDuty
Jira
Elastic
Palo Alto Networks Cortex XSOAR

Independently observed

Imperva WAF

7 total

AWS
Azure
GCP
Kong
Imperva WAF Gateway
Kubernetes
SIEM

Independently observed

Still deciding?

Fastly Next-Gen WAF or Imperva WAF: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.