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AWS 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

AWS WAF
Ranking in Web Application Firewall (WAF)
7th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
62
Ranking in other categories
No ranking in other categories
R&S Web Application Firewal...
Ranking in Web Application Firewall (WAF)
50th
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 November 2026, in the Web Application Firewall (WAF) category, the mindshare of AWS WAF is 4.0%, down from 6.2% 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 (%)
AWS WAF4.0%
R&S Web Application Firewall (DenyAll)0.5%
Other95.5%
Web Application Firewall (WAF)
 

Featured Reviews

reviewer2849304 - PeerSpot reviewer
Senior Cloud Security at a healthcare company with 5,001-10,000 employees
Centralized web firewalling has reduced our attack surface and protects multi‑cloud applications
AWS WAF can be improved by not being too sensitive for some data because with some XML, it is sometimes very sensitive. When we upload videos or photos, it is flagged as a malicious pattern, and sometimes it is not sensitive enough because some query patterns that have the capability to perform malicious actions still result in false positives from AWS. It would be better for AWS WAF if it not only had logs but also specific payloads or something that directly included the specific logs so we can have more detail in our analysis. I think it should be better if they improve their capabilities in reducing the attack surface and also have better visibility for OWASP top 10 web applications and the API. Regarding AWS WAF's AI capabilities, its governance and security are very good because our attack surface is mostly reduced. The new dashboard is a bit complicated; it is easier for non-technical users, but for technical professionals, it is sometimes confusing. While the security itself is good and the governance is good, I think it needs to improve the UI or the flow itself. The accuracy and reliability of AWS WAF's output is better than others. With the free version, it has a good filter with the attack surface and the reliability is good, but sometimes we need to adjust. With the free version, we also have to pay some amount of money if the number exceeds the default provided by AWS.
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

"Rule groups are valuable."
"The most valuable feature of the solution is the ability to integrate central sets. It protects from intrusion attacks such as scripting and SQL injections."
"The tool’s stability is very good."
"Their technical support has been quite good."
"Some valuable features of AWS WAF include its seamless integration and ease of orchestration within the AWS platform."
"AWS WAF has a lot of integrated features and services. For example, there are security services that can be integrated very well for our customers."
"The price of the product is fair enough and one of the product's advantages."
"I hope that the solution continues to improve, but for me, it's perfect right now."
"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

"I find the documentation somewhat complex to implement during the initial stages."
"In a future release I would like to see automation. There's no interaction between the applications and that makes it tedious. We have to do the preparation all over again for each of our other applications."
"The solution could improve by having better rules, they are very basic at the moment."
"We don't have much control over blocking, because the WAF is managed by AWS."
"The user experience, the interface, is lacking. Sometimes it's hard to find certain areas that it has alerted on."
"The solution is cloud-based, and therefore the billing model that comes with it could be more intuitive, in my opinion. It's very easy to not fully understand how you tag things for billing and then you can quite easily run up a high bill without realizing it. The solution needs to be more intuitive around the tagging system, which enables the billing. Right now, I have a cloud architect that does that on our behalf and it isn't something that a business user could use because it still requires quite a lot of technical knowledge to do effectively."
"In a future release of this solution, I would like to see additional management features to make things simpler."
"They should make the implementation process faster."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"You need an additional AWS subscription for this product if you are buying a managed tool."
"It has a variable pricing scheme."
"There are no costs in addition to the standard licensing fees."
"It's quite affordable. It's in the middle."
"There are different scale options available for WAF."
"AWS WAF is pay-as-you-go, I only pay for what I'm using. There is no subscription or any payment upfront, I can terminate use at any time. Which is an advantage."
"The price is average."
"The product is moderately priced."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
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 Business22
Midsize Enterprise12
Large Enterprise28
No data available
 

Questions from the Community

What are the limitations of AWS WAF vs alternative WAFs?
Hi Varun, I have had experienced with several WAF deployments and deep technical assessments of the following: 1. Imperva WAF 2. F5 WAF 3. Polarisec Cloud WAF Typical limitations on cloud WAF is t...
How does AWS WAF compare to Microsoft Azure Application Gateway?
Our organization ran comparison tests to determine whether Amazon’s Web Service Web Application Firewall or Microsoft Azure Application Gateway web application firewall software was the better fit ...
What is your experience regarding pricing and costs for AWS WAF?
AWS WAF is affordable; it depends on the number of rules you apply. The licensing cost for AWS WAF is just pay-as-you-go; it is a service-based model.
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

AWS Web Application Firewall
Rohde & Schwarz Web Application Firewall, R&S WAF, DenyAll Web Application Security
 

Overview

 

Sample Customers

eVitamins, 9Splay, Senao International
Information Not Available
Find out what your peers are saying about Imperva, Radware, F5 and others in Web Application Firewall (WAF). Updated: November 2026.
921,714 professionals have used our research since 2012.