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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
6.6
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 solution is super easy to use, is inexpensive, and includes great technical support."
"I like FortiWeb's usability and ease of configuration. It's simple to configure rules and exceptions inside the attack log. We block everything by default. If something isn't working, we ask the system admin to adjust the template and add exceptions."
"The fact that I can log into the platform and see everybody, see logs, authentication failure, and see everything on one platform, is the most valuable feature."
"If I need something from tech support, I can get it answered within the hour."
"It helps us prevent attacks on servers."
"The solution has a very simple deployment."
"One main feature we are very happy about is file security and upload functionality."
"It's the extra security that is the most valuable feature; you have insight into your traffic, there are some great insights into what utilities hackers are trying to exploit, and it blocks a lot of stuff from the internet."
"The three most valuable features that I noticed are the geo-localization of the user, the IP reputation, and the compartmental analysis."
"By publishing the application without fear, my customer has created new revenue by making the website available anytime and anywhere."
 

Cons

"I know that we have run into some issues with an SSL certificate and how it functions. Sometimes this breaks connectivity or just limits certain websites that are whitelisted."
"I think Fortinet must make an effort in terms of upgrade procedures."
"Describing security rules should be improved. It's tricky to define new feature tools when you want to describe an attack pattern and want to block it."
"We don't propose this solution because we don't know much about it."
"I had some small problems when I was upgrading firmware. After the upgrade, some of my certificates were deleted.​"
"We haven't faced any significant issues with FortiWeb Web Application Firewall. But they can lower the pricing, since it is a concern, especially in South Africa and the technical support, could be more responsive at times."
"Fortinet FortiWeb you have to go through a channel, there's an initial acquisition, and then the annual support which are things that we don't have to consider when we're dealing with NGINX."
"Maybe the load balancing options could be enhanced."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"FortiWeb offers these services at a price that SME customers can afford, but it's also suitable for large enterprises. Still, they need to put in more work to gain a greater share of enterprise business because they face stiff competition in this segment from F5, Cloudflare, and some others."
"The pricing is average; the product is neither particularly expensive nor affordable."
"Its subscription prices are cheaper, and it is not very expensive. From a price perspective, Fortinet is a very well-known security vendor. Subscriptions are very simple. They have a couple of licenses on an appliance, and that's it. The cost is not that big. One license is 40K, which they give with all the products. Another one includes the subscriptions for threat prevention, IPS, sandboxing, etc, which is more than enough."
"Fortinet FortiWeb's pricing is reasonable. Its licensing costs are yearly."
"FortiWeb Web Application Firewall is not expensive."
"All our Fortinet pricing is bundled together for different products, like FortiGate, FortiAnalyzer, and FortiWeb. FortiWeb, by itself, is probably around $2,500 to $3,500."
"The tool is really expensive."
"The solution gives us the best price to performance ratio."
Information not available
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Top Industries

By visitors reading reviews
Outsourcing Company
10%
Comms Service Provider
9%
Financial Services Firm
9%
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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