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Imperva Application Security Platform vs R&S Web Application Firewall (DenyAll) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 22, 2026

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

Imperva Application Securit...
Ranking in Web Application Firewall (WAF)
1st
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
147
Ranking in other categories
CDN (2nd), Distributed Denial-of-Service (DDoS) Protection (4th), Bot Management (1st), API Security (1st)
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 Imperva Application Security Platform is 7.4%, down from 7.6% 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 (%)
Imperva Application Security Platform7.4%
R&S Web Application Firewall (DenyAll)0.6%
Other92.0%
Web Application Firewall (WAF)
 

Q&A Highlights

PM
Sales Director with 51-200 employees
Aug 31, 2021
 

Featured Reviews

reviewer2818155 - PeerSpot reviewer
Senior Associate at a tech vendor with 10,001+ employees
Application protection has improved and reporting and dashboards still need refinement
I believe Imperva Application Security Platform should have a more interactive wizard. While the dashboard is good, it could be more eye-catching. Based on my perspective, I recommend modifying the dashboards, especially the main dashboard where I can see the traffic hit count, alerts, and other latest information. In terms of reporting, I find it challenging to create reports; in my earlier days, it was difficult. Over time, I have learned how to create reports, but it should be easier to do so. I have used other tools such as firewalls or SolarWinds, where creating a report is straightforward and does not take much time, unlike in Imperva, where I have to add many elements. Modifications in the integration aspects would also be beneficial.
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

"We're able to better manage network traffic with its analysis and security tools."
"The tool's profiling feature maps all the web application directories and related components on the profile directory. It has improved the security of my client's website applications."
"By using this application, the firewall is blocking every suspicious activity and event, and now we are safe with peace of mind that nobody will use malware on us or try to hack our website."
"It is an effective threat mitigation tool."
"Its unique interface for managing security performance and ease of use are the most valuable features of this solution."
"Incapsula provides a very simple to install and configure solution, that can be up and running in minutes."
"The solution is very good at intercepting traffic before it gets to our data centers."
"The solution is really stable; it's a product that I can stand by and recommend because I know it's going to work for the customer."
"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 have found some issues with caching; seems to be inconsistent."
"Imperva Application Security Platform could be improved by providing a more user-friendly dashboard."
"Sometimes our web application firewall will slow down."
"The solution needs to improve Integration with third parties for their on-prem deployment models. The integration is not that good yet."
"Imperva Web Application Firewall can improve by adding more features to the dashboard. increasing the visibility of the real-time events, besides configuring the administration itself."
"I think that better bot protection is needed in this solution."
"The product's customization capabilities are a bit problematic, requiring support cases for backend modifications."
"I see some areas for improvement in Imperva Application Security Platform, especially regarding price."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"​Although the pricing can be a little high, it is worth the protection and security that it offers.​"
"Imperva Web Application Firewall is expensive."
"The tool's pricing is good."
"We have an issue with Imperva Incapsula in the Iraqi market because of the high price."
"There are some licenses that you have to buy to use some features. Its price could be better. Price is always important because, at the end of the day, customers have a budget. If you can meet the budget, you can sell, and if you don't, you cannot sell."
"The price of this solution is a little bit high compared to competitors."
"There is a license or subscription renewal that our customers pay."
"The price is high compared to other solutions like FortiWeb."
Information not available
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Answers from the Community

PM
Sales Director with 51-200 employees
Aug 31, 2021
Aug 31, 2021
Imperva is a strong choice, given their security focus and ongoing R&D into the product in areas such as bot management.
2 out of 5 answers
RF
Resp. Area de Segurança at REN
May 19, 2020
We have had a very good experience with FortiWeb.
JD
Principal Analyst at a tech services company with 1-10 employees
May 20, 2020
Imperva is a strong choice, given their security focus and ongoing R&D into the product in areas such as bot management.
 

Top Industries

By visitors reading reviews
Outsourcing Company
12%
Financial Services Firm
11%
Construction Company
8%
Manufacturing Company
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business88
Midsize Enterprise25
Large Enterprise70
No data available
 

Questions from the Community

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.
What is your experience regarding pricing and costs for Imperva DDoS?
The pricing, setup costs, and licensing of Imperva DDoS are reasonable for the amount of technical capabilities provided. I would rate the pricing of Imperva DDoS as five, where one is very cheap a...
What needs improvement with Imperva DDoS?
I would like to see improvements in the pooling of threats and attacks, possibly to enlarge the scale of indicators of compromise. For example, the initiation of an attack on the endpoint level cou...
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Also Known As

Imperva Bot Management, Imperva Web Application Firewall, Imperva API Security
Rohde & Schwarz Web Application Firewall, R&S WAF, DenyAll Web Application Security
 

Overview

 

Sample Customers

Hitachi, BNZ, Bitstamp, Moz, InnoGames, BTCChina, Wix, LivePerson, Zillow and more.
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.