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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)
18th
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)
3rd
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
133
Ranking in other categories
CDN (2nd), Distributed Denial-of-Service (DDoS) Protection (4th), Bot Management (1st), API Security (2nd)
 

Mindshare comparison

As of February 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 7.8%, up from 7.0% 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 Platform7.8%
Fortinet FortiWeb Cloud WAF-as-a-Service0.8%
Other91.4%
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 a secure tool."
"The technical support is really good."
"It is user-friendly and easy to work with."
"I rate the overall solution ten out of ten."
"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."
"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."
"The company provides technical support, and they are mostly available 24/7."
"The most valuable features of the Imperva Web Application Firewall are performance and flexibility. We can extend or customize the box itself."
"If you are using the appliance as opposed to the virtual deployment, it can stand as the network layer-two and provide real transparency."
"IncapRules is one of the most valuable features, as you can create your own security and access control rules on top of your security policy. Using IncapRules we were able to easily block Layer 7 DDoS attacks several times."
"There is a quick switch between any of the the nodes if something goes wrong, where there's a there's an attack against a specific area. The security setup is reasonably easy. It's not a problem to do setups and rules and integrations. And, yeah, just the the back end team is also very willing to insist if there's questions that that we cannot answer or with these questions that we do have"
"This product is a reliable defense from malicious attacks on a network environment."
"There is no need to have an appliance in house for the services because it is on the cloud."
"It has fewer false positives"
"The features I have found most valuable with Imperva Web Application Firewall are account takeover protection, advanced bot protection, and API security."
 

Cons

"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."
"I do not have any notes on improvement."
"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 usability of the interface could be improved as it is not user-friendly."
"The only thing I encountered was related to integration, mostly concerning translation."
"The utilization of AI in Fortinet FortiWeb Cloud WAF-as-a-Service still needs to be upgraded and improved."
"One potential improvement for Imperva is enhancing its alert system."
"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."
"The solution should integrate with something that looks at continuous security management."
"It would be useful if the solution used more intelligence in attack protection. For example, firewalls are to be dependent on the configuration, but if they could have some data science around it the solution would be even better. The profiling of the traffic, and making decisions surrounding that should be intelligence-based, instead of being based on the configuration of the firewall itself."
"We had an issue when securing the web applications for DDoS protection."
"The tool needs to improve CPU and storage memory."
"The UI interface needs improvement."
"Imperva Web Application Firewall could improve the API integration. It was complex for us. Additionally, The onboarding could be better."
 

Pricing and Cost Advice

Information not available
"Varies depending on the needs of the customer."
"On a scale from one to ten, where one is cheap and ten is expensive, I rate the solution's pricing a five out of ten."
"​Although the pricing can be a little high, it is worth the protection and security that it offers.​"
"Imperva Web Application Firewall price is higher compared to other solutions. However, everything is included in the price."
"It's an excellent product, but it can be very costly."
"There are a couple of different licensing models."
"The price of this solution is a little bit high compared to competitors."
"The license is on a yearly basis."
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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
14%
Energy/Utilities Company
11%
Manufacturing Company
9%
Comms Service Provider
8%
Financial Services Firm
12%
Computer Software Company
9%
Manufacturing Company
9%
Insurance Company
6%
 

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?
In terms of pricing, setup cost, and licensing, my experience with Fortinet FortiWeb Cloud WAF-as-a-Service has been good. Pricing aligns well with enterprise-grade managed WAF offerings. While not...
What needs improvement with Fortinet FortiWeb Cloud WAF-as-a-Service?
Better visibility and more intuitive reporting would be helpful for Fortinet FortiWeb Cloud WAF-as-a-Service. Clearer insights from Fortinet FortiWeb Cloud WAF-as-a-Service will make it easier to d...
What is your primary use case for Fortinet FortiWeb Cloud WAF-as-a-Service?
Our primary use case is protecting public facing web applications and APIs against OWASP Top 10 threats and automated attacks. Fortinet FortiWeb Cloud WAF-as-a-Service was used to protect a custome...
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: February 2026.
881,821 professionals have used our research since 2012.