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NetScaler vs R&S Web Application Firewall (DenyAll) comparison

 

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

NetScaler
Ranking in Web Application Firewall (WAF)
14th
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
107
Ranking in other categories
Application Delivery Controllers (ADC) (1st), Network Management Applications (5th)
R&S Web Application Firewal...
Ranking in Web Application Firewall (WAF)
40th
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 June 2025, in the Web Application Firewall (WAF) category, the mindshare of NetScaler is 3.2%, down from 3.4% compared to the previous year. The mindshare of R&S Web Application Firewall (DenyAll) is 0.2%, down from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF)
 

Featured Reviews

DEMİRHAN ÇAVUŞOĞLU - PeerSpot reviewer
A tool for centralized management including inventory and sales tracking
Citrix ADM has the ability to implement policies to tighten security. For instance, you can restrict access to your network from outsiders or lack necessary security measures such as antivirus programs. Additionally, there's the Delivery Controller, which allows for comprehensive monitoring and management tasks such as remote restarts, maintenance, and registration. Another essential component is the Director, which provides detailed insights into sessions, including identifying session failures, connection issues, user lockouts, etc. It presents a list of problems to address, enabling you to click on them and resolve them efficiently.
SS
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 web application firewall is one feature I found valuable in the solution."
"Just one solution can handle thousands of users... So, it is a very convenient tool to use."
"Load Balancing and SSL offloading are key features."
"We appreciate that this solution facilitates our access to Citrix internet."
"Content Redirection and SSO integration with Citrix XenApp/XenDesktop. The GUI was wonderful."
"My clients use it for load balancing."
"Most of the functions are user-friendly and great."
"The GSLB feature allows us to move services between data centers. We can do this in either a planned or unplanned manner. We have experienced service provider outages at our primary data center and GSLB will kick in to automatically modify DNS records to point to a secondary data center (active/passive). We also make use of GeoIP information to point clients to the closest data center for accessing applications."
"The three most valuable features that I noticed are the geo-localization of the user, the IP reputation, and the compartmental analysis."
 

Cons

"We face challenges with the solution's firmware upgrades frequently."
"Technical support sometimes takes a little longer because of the multilevel ticket priority."
"I would like to see the virtual and desktop license included in the pricing."
"The interface needs to be improved because the competition is coming up with ones that are more eye-catching, straightforward, and sophisticated."
"Development team's response time could be better."
"They need to make the solution a little more familiar with easy study guides, learning videos, etc."
"Technical support could be improved."
"The user interface could be more friendly. Some wizards and other documentation for administrators, as well as some use cases, helps us to understand the solution."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"You get the value for your money. There aren't any hidden fees."
"You can do CapEx and then a yearly monthly fee, or you can do a subscription model, whether that's one month, month-to-month, or three-year subscription model."
"For the specific use case that my customers primarily engage with, I would give the pricing a rating of seven out of ten."
"We have a yearly licencing fee, and there are no additional costs."
"Citrix NetScaler's pricing is slightly above average but not overly expensive. I would consider F5 BIG IP to be the most expensive, Citrix NetScaler to be the second most expensive, and then Kemp Load Balancer to be the third."
"Regarding pricing, while it's expensive, I can't comment on the exact ROI without a budget analysis. However, in terms of service quality, it's worth the price."
"It all depends on the features that will be used and the number of accesses."
"Licensing is adequate. I wanted to have a more prominent license, but until I do they don't give enough support. The additional cost would be too much."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Government
9%
Educational Organization
9%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about Citrix ADC?
The most valuable feature for us is the application firewalling in Citrix NetScaler, ensuring only valid traffic enters our environment.
What is your experience regarding pricing and costs for Citrix ADC?
After deployment, Citrix Netscaler shifted to a subscription-based license scheme for support, which is slightly more expensive.
What needs improvement with Citrix ADC?
Citrix NetScaler is a robust product, but mastering it requires significant learning and training due to its complexity. While it could be easier to manage, it is like transitioning from driving a ...
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.
 

Comparisons

 

Also Known As

Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall
Rohde & Schwarz Web Application Firewall, R&S WAF, DenyAll Web Application Security
 

Overview

 

Sample Customers

ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk
Information Not Available
Find out what your peers are saying about Amazon Web Services (AWS), F5, Microsoft and others in Web Application Firewall (WAF). Updated: June 2025.
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