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F5 Advanced WAF 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

F5 Advanced WAF
Ranking in Web Application Firewall (WAF)
3rd
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
72
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 F5 Advanced WAF is 3.6%, down from 8.0% 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 (%)
F5 Advanced WAF3.6%
R&S Web Application Firewall (DenyAll)0.6%
Other95.8%
Web Application Firewall (WAF)
 

Featured Reviews

reviewer2797602 - PeerSpot reviewer
Senior Security Systems Engineer at a tech services company with 11-50 employees
Granular security policies have protected critical applications and ensure safe user and admin access
Improvements could be made regarding the log information from the backend CLI. There are enhancements needed; if a request gets blocked on the TCP layer, there should be traces or data to verify which source generated these requests, including the source and port information for initiation. These data are missing from F5 Advanced WAF. Besides that, another improvement could be refining the bot detection to minimize false positives; it should be able to verify more granularly between legitimate and non-legitimate clients. Overall, I find everything else good. A wish list feature I have is for the Technical Assistance Center (TAC) to respond more promptly. Their response time needs improvement; while they do not take excessive time, it can be enhanced, especially given it is a security product.
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

"F5 Advanced WAF has very good stability and scalability, and its initial setup was straightforward."
"I would recommend this solution to others who are interested in using it."
"Customers find the load balancer feature as the most valuable."
"The most valuable features of F5 Advanced WAF are the easy identification of events and customization. We can pinpoint our settings."
"We can monitor IP locations, but we have constraints from each country, it has a replication feature, and licenses can be shared, taking turns with each license."
"The most valuable features of F5 Advanced WAF are SSL uploading, signature, and anomaly detection, and it is overall a high-quality solution."
"The product is very stable; it is a PCI company, so there are 10,000-12,000 people using the solution, and all of the internet payments are behind the ASM for the F5."
"The solution isn't too expensive. The license allows you to license what you need and leave out what you don't need."
"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 BIG-IQ is supposed to centralize the management for all of the boxes but it's not very effective."
"The scalability could be improved."
"I would like to see a better interface and better documentation compatibility with other products. It's more complicated with OWASP."
"It's a powerful tool yet can be complex for new users."
"We get false positives sometimes."
"The solution's dashboard could be improved."
"The accuracy of the automatic learning feature needs improvement."
"My experience with the technical support from F5 is that on the technical side, we sometimes face issues with reachability and availability."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"There is an annual subscription for this solution."
"The solution is very expensive so should only be used in the right environment."
"F5 Advanced WAF pricing structure should be adjusted to meet the need of small to medium-sized companies."
"There are various plans available for Fortinet FortiWeb Cloud WAF as a Service, including a trial version."
"The pricing of F5 Advanced WAF is more expensive than other solutions like Radware and CD18, it is quite high."
"The way we deployed it, I would rate it a four out of five in terms of pricing."
"I think the price is very high."
"There is a perpetual license that comes with your hardware. There is also an additional fee for support."
Information not available
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913,924 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
14%
Comms Service Provider
10%
Computer Software Company
8%
Outsourcing Company
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise16
Large Enterprise31
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for F5 Advanced WAF?
F5 Advanced WAF is somewhat costly compared to other vendors, but it is worth the investment due to the stability it provides to the environment and infrastructure.
What needs improvement with F5 Advanced WAF?
Improvements could be made regarding the log information from the backend CLI. There are enhancements needed; if a request gets blocked on the TCP layer, there should be traces or data to verify wh...
What is your primary use case for F5 Advanced WAF?
My main use case for F5 Advanced WAF is to protect external and internal applications from cyber attacks and to prevent malicious payloads and malicious data from reaching servers. Even if maliciou...
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

No data available
Rohde & Schwarz Web Application Firewall, R&S WAF, DenyAll Web Application Security
 

Overview

 

Sample Customers

MAXIMUS, Vivo, American Systems, Bangladesh Post Office, City Bank
Information Not Available
Find out what your peers are saying about Imperva, Radware, F5 and others in Web Application Firewall (WAF). Updated: September 2026.
913,924 professionals have used our research since 2012.