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Fortinet FortiWeb vs R&S Web Application Firewall (DenyAll) comparison

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Comparison Buyer's Guide

Executive Summary

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
Ranking in Web Application Firewall (WAF)
4th
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
122
Ranking in other categories
No ranking in other categories
R&S Web Application Firewal...
Ranking in Web Application Firewall (WAF)
47th
Average Rating
9.0
Reviews Sentiment
8.5
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2026, in the Web Application Firewall (WAF) category, the mindshare of Fortinet FortiWeb is 4.1%, down from 7.5% compared to the previous year. The mindshare of R&S Web Application Firewall (DenyAll) is 0.6%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiWeb4.1%
R&S Web Application Firewall (DenyAll)0.6%
Other95.3%
Web Application Firewall (WAF)
 

Featured Reviews

HameedAhmed - PeerSpot reviewer
Joint Director at PAA
Security threats have been reduced through seamless deployment and strong integration with other tools
I have used Fortinet FortiWeb's integration features. We have easily integrated all of the applications with the product. Most of the applications we are using are in-house built. My technical team is looking after the best features. I have not used it extensively for maybe two and a half years. I have been involved in the installation, but I am not actually using the product. I work with it from time to time but not extensively. I would assess Fortinet FortiWeb's adaptive machine learning and artificial intelligence as having new patches installed regarding artificial intelligence, but when we bought it, I think the learning feature was there. Now they have installed artificial intelligence features through patches. We have a complete portfolio of Fortinet in our organization, including FortiMail, Fortinet FortiWeb, and FortiGate, along with multi-factor authentication. All of the products are from Fortinet. Fortinet tools integrate with each other and work in conjunction. I think Fortinet FortiWeb has helped us meet regulatory compliance because we are not a regulatory organization, but our sister organization is regulatory. We have regulatory compliance with the International Civil Aviation Authority, whose audit teams have checked our data center and these security products, and they are satisfied with us. The question about leveraging Fortinet FortiWeb's automated policy management does not pertain to my domain because I am not so technical, but I am in a management role now. My engineer is more technical than me. I would rate this product an eight point five out of ten.
SS
General Manager at 3R Technologie
Geo-localization and IP reputation help to keep our clients secure and more available
The area that should be improved is licensing. When using an active/passive cluster, we have to pay 70% of the master appliance and license for the passive server that does not work. Since we know that only one server works at a time, we should pay only one license for the appliances and for the support as well. In my opinion, this has to be improved. If possible, the client software should be a web application instead of downloading software for the management. This can avoid login problems when they update or patch.

Quotes from Members

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

Pros

"The ability to configure multiple policies for different requirements is a strong feature of Fortinet FortiWeb."
"The most valuable features of FortiWeb include its dashboard and out-of-the-box integrations with other Fortinet products, which enhance its effectiveness."
"We have found something that can adapt to our environment and that we can use for a long period of time."
"FortiWeb's position as part of the Fortinet platform makes it particularly beneficial for Fortinet customers, offering seamless integration and operational cost savings."
"I have recently been looking at the SSL certificate features and the learning mode of the appliance. This appliance learns from the pattern of SSL attacks."
"The most valuable feature is ease of use."
"For me personally, the most valuable thing is that I like the fact that it is standardized so both internal firewall management and the cloud can be managed by the same company."
"Security Fabric integration. This is really a value-added feature as FortiWeb can interact with the rest of the client’s Fortinet pack to provide an intelligent security layer like (FortiSIEM for central log management and correlation, FortiGate, FortiSandbox for malware analysis, etc.)."
"By publishing the application without fear, my customer has created new revenue by making the website available anytime and anywhere."
"The three most valuable features that I noticed are the geo-localization of the user, the IP reputation, and the compartmental analysis."
 

Cons

"The solution is not very scalable, to scale up would require another deployment with a new appliance and a change to the network."
"We have encountered issues with webhooks and management of FortiWeb Web Application Firewall's on-premise version."
"The dashboards are not that configurable. Application-specific dashboards can be improved. If we have 50 applications, there should be something to see what's happening with these 50 applications. There could be a graph or a consolidated alert page where all alerts are inbuilt. They have other products that I can use, but this feature should be built into FortiWeb."
"The solution is rather complicated. If you know what to do, it's not bad, but it's complicated for a first time user to configure the solution. What I'd like to improve are the custom signatures."
"The initial setup in our data center was somewhat complex."
"The automation piece can be improved. Although they say it can be automated very well, there is still manual work. Its usability should be improved in terms of automation because we want to build an infrastructure with code, but you can't do that easily with this solution. If they can give us APIs in the firewalls that we can tap into, it would be perfect."
"The downside to FortiWeb is it had issues integrating with HSM. They fixed the issue, however, it took a long time to fix and it wasn't pleasant."
"The product lacks features offered by enterprise-level firewall tools."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"It is not a cheap product. It is not like a Linux or a Genex that you can deploy. It is a hardware appliance, and it is built for a specific reason and reliability. It is an enterprise-class solution. You wouldn't find an SMB investing in something like this."
"The licensing cost of the product is pretty high compared to other OEMs in the market."
"​The pricing is reasonable."
"The price is competitive."
"The price of Fortinet FortiWeb is expensive in our Ethiopian currency."
"There's only one payment for the duration of the license. On a scale from one to five, I would rate pricing at four. I have not encountered any additional costs on my projects involving Fortinet FortiWeb."
"FortiWeb is more expensive than some competing products."
"Keep a loose margin between your actual bandwidth and the product sizing when using hardware appliances. Only virtual machines are upgradable to larger sizes."
Information not available
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Top Industries

By visitors reading reviews
Outsourcing Company
9%
Financial Services Firm
9%
Comms Service Provider
8%
Manufacturing Company
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business61
Midsize Enterprise27
Large Enterprise37
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Fortinet FortiWeb?
The pricing for Fortinet FortiWeb varies with different models having different prices. It depends on the requirement. For VM machines, the price increases based on CPU configurations of 2, 4, or 8...
What needs improvement with Fortinet FortiWeb?
There is room for improvement in Fortinet FortiWeb. The team was only from FortiGate itself. They are making new firmware versions and releasing them before checking, which leads to many bugs in th...
What is your primary use case for Fortinet FortiWeb?
Fortinet FortiWeb is very good as a web application solution. I have been working with Fortinet FortiWeb since 2020.
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.
 

Also Known As

FortiWeb Web Application Firewall (WAF)
Rohde & Schwarz Web Application Firewall, R&S WAF, DenyAll Web Application Security
 

Overview

 

Sample Customers

Lush, Barnabas Health, Options, Riverside Healthcare, Hillsbourough County Schools, Columbia Public Schools, Schiller AG
Information Not Available
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