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Fortinet FortiWeb Cloud WAF-as-a-Service vs Imperva Application Security Platform comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 21, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Fortinet FortiWeb Cloud WAF...
Ranking in Web Application Firewall (WAF)
23rd
Average Rating
8.8
Reviews Sentiment
6.7
Number of Reviews
7
Ranking in other categories
No ranking in other categories
Imperva Application Securit...
Ranking in Web Application Firewall (WAF)
4th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
133
Ranking in other categories
CDN (4th), Distributed Denial-of-Service (DDoS) Protection (4th), Bot Management (1st), API Security (2nd)
 

Mindshare comparison

As of January 2026, in the Web Application Firewall (WAF) category, the mindshare of Fortinet FortiWeb Cloud WAF-as-a-Service is 0.8%, up from 0.4% compared to the previous year. The mindshare of Imperva Application Security Platform is 7.6%, up from 7.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Market Share Distribution
ProductMarket Share (%)
Imperva Application Security Platform7.6%
Fortinet FortiWeb Cloud WAF-as-a-Service0.8%
Other91.6%
Web Application Firewall (WAF)
 

Featured Reviews

RA
Global Head - DevOps and AIOps Startegist at a manufacturing company with 10,001+ employees
Cloud security has reduced web attack incidents and protects our public applications and APIs
The best features Fortinet FortiWeb Cloud WAF-as-a-Service offers include managed WAF rules, OWASP protection, bot mitigation, and Fortinet threat intelligence. In day-to-day work, I use all of the features: managed WAF rules, OWASP protection, bot mitigation, and Fortinet threat intelligence. This provides a strong baseline security without requiring deep WAF expertise internally. The integration with the broader Fortinet security system is a plus regarding the features. In terms of its impact on our organization, Fortinet FortiWeb Cloud WAF-as-a-Service has been positively protecting us from security threats and automated attacks. With this layered protection against common web and API attacks, we have noticed that the incidents and risks have been reduced to a greater extent.
reviewer1247523 - PeerSpot reviewer
Head of Sales Services Department at a comms service provider with 51-200 employees
Solution ensures website availability and proactive threat mitigation
Over the seven years, the most valuable features of Imperva DDoS that I have found are related to DDoS attacks, which are a group of attacks, and not all of them can be resolved on the endpoint level before the website. Using the web firewall before the website is a common use case to protect against malicious requests to the website. I have utilized Imperva's Intelligent Traffic Filtering feature. This feature helps me understand how the attack is progressing and what is happening inside the requests to our website. It allows me to granularly grant or deny access to certain parts of our website. This helps when we know our customers and the types of requests that can be sent from them, enabling us to block some malicious requests. Imperva DDoS has User Behavior Analytics and Threat Intelligence on its board, and this helps us to be protected proactively. Imperva DDoS connects to its database of threats, storing whole information about attacks all over the world in one simple engine. Everyone can use this feature, which can connect to this engine and get information about what is going on at the world level. That is the way to be protected at the company's level. The integration capabilities of Imperva DDoS are very easy and simple. We can run it in 2 hours.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"It is user-friendly and easy to work with."
"Fortinet has created a holistic product that integrates features including AI and API protection, with straightforward automation and articulate reporting that even less experienced engineers can use easily."
"Fortinet FortiWeb offers a variety of protections, including machine learning that helps protect web applications."
"I rate the overall solution ten out of ten."
"The company provides technical support, and they are mostly available 24/7."
"Regular updates are one of the aspects I appreciate about Fortinet FortiWeb Cloud WAF-as-a-Service, and it is provided by a leading brand in cybersecurity."
"The stability of the solution is excellent."
"The technical support is really good."
"We can prevent attacks or issues even before they happen."
"The solution has been quite stable. I have not seen any bugs at all."
"The WAF itself has been very valuable to me because it has such a complete range of features. Another reason why I like it is because it also takes care of the total overview of the traffic over the network."
"It has fewer false positives"
"The solution is stable."
"Learning mode and custom policies are helpful features."
"The dynamic profiling of websites is the solution's most valuable feature. The security is also good."
"I am impressed with the product's automatic bot mechanism. It also gives us the control to create our own custom bot rules."
 

Cons

"The utilization of AI in Fortinet FortiWeb Cloud WAF-as-a-Service still needs to be upgraded and improved."
"The usability of the interface could be improved as it is not user-friendly."
"I do not have any notes on improvement."
"Better visibility and more intuitive reporting would be helpful for Fortinet FortiWeb Cloud WAF-as-a-Service."
"The usability of the interface could be improved as it is not user-friendly."
"Fortinet FortiWeb Cloud WAF-as-a-Service could be improved with better logging capabilities, as many come with less spacing, necessitating a FortiSIM for enhanced functionality."
"The only thing I encountered was related to integration, mostly concerning translation."
"Imperva Web Application Firewall can improve by providing better features, such as improved prevention of zero-day attacks. Additionally, it should include a VR meta-analysis."
"It should be more user-friendly. Like other web solutions, it would be helpful to be able to easily do policy configuration and identification inside the application. Understanding the in-depth configuration of a policy is somewhat difficult for an engineer, and they can improve that."
"Support is one thing I wish Imperva could improve."
"I would like to have support for SSL management and secure DNS."
"It would be helpful to have a "recommended deployment", or even a list of basic features that should either be used or turned on by default."
"In the past, I have bugs on the WAF. I've contacted Imperva about them. Future releases should be less buggy."
"Imperva now offers add-ons to add functionality, but I would like to see these included in the product, even if it would cost more."
"There's always room for improvement. Occasionally, there might be false-positive alerts."
 

Pricing and Cost Advice

Information not available
"It is expensive."
"It is a very affordable solution."
"The solution's pricing is an issue."
"Imperva Web Application Firewall price is higher compared to other solutions. However, everything is included in the price."
"Imperva’s pricing is a bit higher in the market since it offers a full-blown WAF."
"There is a license or subscription renewal that our customers pay."
"Imperva Web Application Firewall is expensive."
"It's an excellent product, but it can be very costly."
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Comparison Review

it_user68487 - PeerSpot reviewer
Security Expert with 51-200 employees
Nov 6, 2013
CloudFlare vs Incapsula: Web Application Firewall
CloudFlare vs Incapsula: Round 2 Web Application Firewall Comparative Penetration Testing Analysis Report v1.0 Summary This document contains the results of a second comparative penetration test conducted by a team of security specialists at Zero Science Lab against two cloud-based Web…
 

Top Industries

By visitors reading reviews
Financial Services Firm
15%
Energy/Utilities Company
11%
Manufacturing Company
10%
Comms Service Provider
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise2
Large Enterprise3
By reviewers
Company SizeCount
Small Business83
Midsize Enterprise25
Large Enterprise61
 

Questions from the Community

What is your experience regarding pricing and costs for Fortinet FortiWeb Cloud WAF-as-a-Service?
My experience with the pricing, setup cost, and licensing for Fortinet FortiWeb Cloud WAF-as-a-Service is good, and it is quite affordable compared to other WAFs.
What needs improvement with Fortinet FortiWeb Cloud WAF-as-a-Service?
Fortinet FortiWeb Cloud WAF-as-a-Service could be improved with better logging capabilities, as many come with less spacing, necessitating a FortiSIM for enhanced functionality. In addition to logg...
What is your primary use case for Fortinet FortiWeb Cloud WAF-as-a-Service?
Fortinet FortiWeb Cloud WAF-as-a-Service protects our customers' websites, including e-commerce sites, normal websites, and web applications. I can provide a quick example of a customer website whe...
Which Web Application Firewall (WAF) would you recommend? R&S or Imperva?
Imperva is a strong choice, given their security focus and ongoing R&D into the product in areas such as bot management.
What do you like most about Imperva Incapsula?
We use Imperva DDoS to stop DDoS attacks and reduce the amount of unwanted queries against web services or web scraping.
What is your experience regarding pricing and costs for Imperva DDoS?
The pricing, setup costs, and licensing of Imperva DDoS are reasonable for the amount of technical capabilities provided. I would rate the pricing of Imperva DDoS as five, where one is very cheap a...
 

Also Known As

No data available
Imperva Bot Management, Imperva Web Application Firewall, Imperva API Security
 

Overview

 

Sample Customers

Information Not Available
Hitachi, BNZ, Bitstamp, Moz, InnoGames, BTCChina, Wix, LivePerson, Zillow and more.
Find out what your peers are saying about Fortinet FortiWeb Cloud WAF-as-a-Service vs. Imperva Application Security Platform and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.