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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

Cloudflare Web Application ...
Sponsored
Ranking in Web Application Firewall (WAF)
6th
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
26
Ranking in other categories
No ranking in other categories
Fortinet FortiWeb
Ranking in Web Application Firewall (WAF)
2nd
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
121
Ranking in other categories
No ranking in other categories
R&S Web Application Firewal...
Ranking in Web Application Firewall (WAF)
49th
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 August 2026, in the Web Application Firewall (WAF) category, the mindshare of Cloudflare Web Application Firewall is 3.8%, down from 5.8% compared to the previous year. The mindshare of Fortinet FortiWeb is 4.4%, down from 7.5% compared to the previous year. The mindshare of R&S Web Application Firewall (DenyAll) is 0.5%, 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 FortiWeb4.4%
Cloudflare Web Application Firewall3.8%
R&S Web Application Firewall (DenyAll)0.5%
Other91.3%
Web Application Firewall (WAF)
 

Featured Reviews

DB
CTO at PlayNirvana
Advanced security reporting has protected high-traffic betting platforms from constant attacks
I don't see room for improvement to Cloudflare Web Application Firewall. One thing I don't know much about because we have a dedicated IT team for that, and I'm not involved with Cloudflare much anymore. But if I were to compare them to F5, I would like to see more features that F5 offers. F5 has an option to bring the whole infrastructure, the whole WAF and all their packages, Bot Management, and everything else on your infrastructure. You need to install certain services from their side, and then you can choose if you would like requests to hit your servers immediately or if requests need to be proxied through F5 backbone. That would be a nice addition because we have 90% of the traffic as legit traffic coming from whitelisted servers. If it comes from whitelisted servers, I don't need to go every request through the backbone; I could easily just IP whitelist everything. Then I could maybe have Bot Management on my infrastructure that drastically reduces the price of Cloudflare. I would like to see Push CDN more improved in the next release of Cloudflare Web Application Firewall. And maybe something similar to Pushpin that Fastly has, which is an option where you can push messages that then can be scaled globally over the network. From our perspective, if we have a listener that listens for stock updates, I would just need to have one processor that pushes those updates to the Cloudflare API, and then Cloudflare would broadcast that message to all listeners. Cloudflare will check the order of the message, and if you, as a customer, are not connected or have some kind of network issue, when you reconnect, you will receive the latest state and missing updates.
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 security features are valuable. The particular feature we use is called OWASP."
"The stability of Cloudflare Web Application Firewall deserves a perfect 10 out of 10."
"The setup process is very simple for me."
"Cloudflare WAF provides protection through rules and functionalities like Cloudflare's SDRAP."
"The product has a valuable security control functionality."
"It is a SaaS solution unlike much of the competition."
"We like that there's load balancing, firewall capabilities, DDoS protection, et cetera, all covered by Cloudflare."
"It's pretty convenient and pretty easy to set up and run. And then kind of for static content, it also offers caching."
"It can scale well."
"Deployment can be straightforward"
"The support is quite good."
"The product's initial setup phase was straightforward, and since our company didn't have any problems with it, we didn't encounter many problems with the tool."
"There are many valuable features; it has machine learning, artificial intelligence, behaviour detection, and many other features capable of detecting web attacks."
"With the fear of cyber attack, the most important thing we can do is protect the web application, and FortiWeb helps us protect it from attacks like DDoS while maintaining our cyber security posture."
"Fortinet is a great SD-WAN player when it comes to security capabilities."
"The anti-defacement feature is very useful because it looks for web changes over time to protect pages."
"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

"Their documentation could be better. They don't have documentation that explains everything well. They have documentation for everything you're looking for, but they lack a single piece of documentation to tie everything together. As a new user or beginner, it took us a little bit of time to figure out how to put all these things in place."
"WAF doesn't directly affect bandwidth costs. It saves costs on protection. However, with the correct setup, it's difficult to determine if it saves costs overall due to the fixed enterprise plan fee."
"The blocked logs are difficult to read at times."
"They have some limitations with third-party integrations."
"The user interface is very simple and straightforward, but users need knowledge about DNS to accomplish tasks."
"The product can improve by having more multitenancy capability, which is currently not available."
"Its stability could be better."
"Support can be challenging at times."
"The UI is a little complicated for new users."
"We also need configuration settings that indicate the advantages or disadvantages of enabled features."
"With the 600-C model, we had some scalability issues."
"If the price was lower, it would be a bit more attractive, as an option, to the customers."
"Most of the deployment is done by our development team because they have some parameters that match the configuration. However, when we initially did the deployment we used a consultant company."
"The solution could offer more integration opportunities."
"Fortinet's technical support is pretty slow."
"Capacity-wise, since there is hardware involved, it cannot scale too much."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"Cloudflare Web Application Firewall is more affordable than other solutions."
"The pricing model is very straightforward compared to the competition. You just pay per month for the product and usage."
"The solution's pricing option needs to be more transparent for enterprise clients."
"Cloudflare offers different types of subscriptions for businesses, enterprises, and personal users, and the pricing is negotiable."
"It is not too pricey."
"What's my experience with pricing, setup cost, and licensing? I believe the pricing is not the best, but it's reasonable and acceptable. We also use the McAfee system in parallel. In terms of pricing, its okay - not great, but not bad either. It falls in the middle, which is acceptable. In terms of support licensing, last time, we were searching for a solution, and we considered products from resellers rather than directly from the cloud provider. However, the pricing we encountered was exceptionally high. As a result, we are inclined to select support from the reseller."
"The annual licensing fee is $10,000 USD."
"It starts at $20 and can easily go up to $200 monthly"
"Previously, for each project, the cost was $800 to $1,000 per application. Now, it's $100 to $120. For some of the applications, there is a 90% reduction, and for some of the applications, there is a 50% reduction. We're paying only $500 to $600."
"FortiWeb has a good presence because of its price."
"​The pricing is reasonable."
"Cheaper than others."
"The solution gives us the best price to performance ratio."
"Due to the situation in Iran with the sanctions, the price of this solution is very expensive."
"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."
"The solution is a bit expensive when compared to other products."
Information not available
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Top Industries

By visitors reading reviews
Construction Company
16%
Comms Service Provider
9%
Financial Services Firm
9%
Outsourcing Company
8%
Financial Services Firm
9%
Manufacturing Company
9%
Comms Service Provider
8%
Outsourcing Company
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise6
Large Enterprise6
By reviewers
Company SizeCount
Small Business60
Midsize Enterprise27
Large Enterprise37
No data available
 

Questions from the Community

What needs improvement with Cloudflare Web Application Firewall?
I don't see room for improvement to Cloudflare Web Application Firewall. One thing I don't know much about because we...
What is your primary use case for Cloudflare Web Application Firewall?
We are using Cloudflare Web Application Firewall's advanced reporting and analytics tools with their Zero Trust, so e...
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...
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 firm...
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 mana...
 

Also Known As

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

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
Lush, Barnabas Health, Options, Riverside Healthcare, Hillsbourough County Schools, Columbia Public Schools, Schiller AG
Information Not Available
Find out what your peers are saying about Imperva, Fortinet, F5 and others in Web Application Firewall (WAF). Updated: August 2026.
909,099 professionals have used our research since 2012.