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Barracuda Web Application Firewall vs Imperva Application Security Platform vs NetScaler 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:
 

Mindshare comparison

As of February 2026, in the Web Application Firewall (WAF) category, the mindshare of Barracuda Web Application Firewall is 2.0%, up from 2.0% compared to the previous year. The mindshare of Imperva Application Security Platform is 7.8%, up from 7.0% compared to the previous year. The mindshare of NetScaler is 4.1%, down from 4.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Market Share Distribution
ProductMarket Share (%)
Imperva Application Security Platform7.8%
NetScaler4.1%
Barracuda Web Application Firewall2.0%
Other86.1%
Web Application Firewall (WAF)
 

Featured Reviews

Shahzad Abid - PeerSpot reviewer
Director Information Technology at College of Physicians & Surgeons Pakistan
Has protected our legacy applications effectively but has required constant manual filtering due to false positives
I assess the effectiveness of the machine learning-driven threat detection in Barracuda Web Application Firewall as sometimes behaving abnormally, often showing me false positive attacks, so I have to fix these attacks from time to time. From a stability point of view, I would definitely rate Barracuda Web Application Firewall a seven out of ten. There is definitely some room for improvement; nothing is perfect in the world. I am not satisfied with the technical support from Barracuda. I am somewhat disappointed with the technical support that I have received so far. Whenever I generate a ticket for my problem, it goes to the Indian support team, and they all the time start with the most junior team member, consuming all my precious time. At the end, I have to close that ticket without any satisfactory solution. I have complained that they should shift my support to any other region because I don't need Indian support; they are simply pathetic and not up to mark. To improve Barracuda Web Application Firewall, customers should be given ongoing training opportunities regarding the product and its features. I am not familiar with many features that are available, only using those which are necessary for my applications. I believe Barracuda must provide clearer product information or training sessions to make it more user-friendly, as sometimes its interface can be rigid and lacking in helpful resources or user tutorials about its features. For it to get closer to a ten, I think advanced reporting is missing because, as I mentioned earlier, there are many false positive events being recorded. Often, when I analyze these attacks, they turn out to be genuine customers or users interacting with my product, but Barracuda tags them as attackers. Reducing false positives must be a priority.
reviewer1247523 - PeerSpot reviewer
Head of Sales Services Department at a comms service provider with 51-200 employees
Solution ensures website availability and proactive threat mitigation
Over the seven years, the most valuable features of Imperva DDoS that I have found are related to DDoS attacks, which are a group of attacks, and not all of them can be resolved on the endpoint level before the website. Using the web firewall before the website is a common use case to protect against malicious requests to the website. I have utilized Imperva's Intelligent Traffic Filtering feature. This feature helps me understand how the attack is progressing and what is happening inside the requests to our website. It allows me to granularly grant or deny access to certain parts of our website. This helps when we know our customers and the types of requests that can be sent from them, enabling us to block some malicious requests. Imperva DDoS has User Behavior Analytics and Threat Intelligence on its board, and this helps us to be protected proactively. Imperva DDoS connects to its database of threats, storing whole information about attacks all over the world in one simple engine. Everyone can use this feature, which can connect to this engine and get information about what is going on at the world level. That is the way to be protected at the company's level. The integration capabilities of Imperva DDoS are very easy and simple. We can run it in 2 hours.
LD
Information Technology Division Director at Ethiopian Roads Administration
Offers better visibility into user sessions compared to other solutions
Improvements are needed to address the issue of machines becoming unregistered, ensuring stability for end users. Troubleshooting with Citrix support can be challenging, so clearer diagnostics would be beneficial. As for global server load balancing, it works well on-premises, depending on user volume and service stability. Overall, it's satisfactory for us.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"This product gives us visibility into what is going on in two servers, including connections and sessions, real-time alerts, very good reporting, and KPIs. It makes managing security of a critical server very easy, with a friendly GUI."
"It allows us to scale out to multiple phase servers."
"The initial setup is easy."
"Barracuda Web Application Firewall provides optimized performance, a user-friendly environment, helpful dashboards, and is simple to use."
"Setup of this solution is straightforward. It's a stable and scalable solution, with good performance and fast technical support."
"The volumetric DDoS defense is very good because I had a problem with a lot of volumetric DDoS attacks on my servers. After using Barracuda, those attacks have stopped and all the traffic is going smoothly to my servers and the system is working really well."
"The most valuable features are the client VPN and content filtering."
"If an attack is coming continuously, you can ask the device to block it temporarily for two to three minutes. F5 has not provided us with an option to block certain IPs for some time. Barracuda can help you block someone if the source is from a different IP. You can apply the rule to the device and block it for whatsoever time you want. The solution will unblock the IP after the prescribed time as well."
"The bot management features are very effective, as they help filter unwanted traffic using keywords."
"Scalability is pretty easy on the base platform. You just add another, and you're ready to go."
"The solution can be configured in just a couple of minutes."
"The solution integrates seamlessly with other tools and has a good alert mechanism."
"The most valuable features for us are the DDoS and Bot."
"Data masking is the most valuable feature of this solution."
"The valuable features of Imperva WAF include its effective security breach prevention through automatically updating rules."
"The solution is cloud-based and offers us good uptime. It has combined web and API security. Therefore, with one license, you access both application security and also API security."
"NetScaler Gateway: Why? Availability/Security: We delivered more than 200 applications thru Xenapp. This feature give us the possibility to deliver the applications anywhere. Currently, 30% of access is made through our NetScaler Gateway (Internet connections)."
"When our primary link goes down I can still get to my Cisco devices and the NetScaler devices on-prem because of the SDN solution. If the internet connection at one of the branches goes down, we can still route them, they still get internet based on the SDN solution through one of the other sites. They can carry on working."
"The most valuable features of Citrix ADC are load balancing and application firewall."
"It is a very stable solution."
"What I like most about Citrix NetScaler is its stability, and I didn't see a lot of issues with it."
"The load balancing feature of this solution is very good."
"It is the best product out there."
"The load balancing is one of the most valuable features."
 

Cons

"There's potential for improvement in the platform's CMS integration."
"We get false positives about phishing emails."
"One of Barracuda's limitations is its user interface. The GUI for configuration is not intuitive and has remained largely unchanged for the past 10 to 12 years."
"They could improve their performance, support, and their upgrades. Their updates used to be good. Their improvements were right on the money but nowadays, the updates are minor."
"This product could easily progress to be among the industry leaders. I think they need to improve enterprise level automation. It integrates with a small number of vulnerability scanners, so report results should be imported manually; same for SIEM integration."
"We encountered a few glitches while implementing API security features into the product."
"Barracuda Web Application Firewall lacks some of the more specified and structured features offered by solutions like Tenable."
"It would be better if their updates would be released annually."
"I would like to improve the tool's turnaround time in terms of support."
"We had an issue when securing the web applications for DDoS protection."
"The support for the on-premises version needs improvement."
"They can provide an option to create reports, automatically import the entire report, and create rules again. In a real-life crisis, it would be helpful to be able to import a report and generate security rules from that report. I should be able to create a simple query and import the reports automatically. It can maybe also tell us the format of the report."
"The tool's UI is complicated. It would be best to have a more accessible UI dashboard to make the job easier."
"The tool needs to include artificial intelligence and machine learning. It also needs to improve profiling."
"In the past, I have bugs on the WAF. I've contacted Imperva about them. Future releases should be less buggy."
"Pricing can be improved, as it is quite expensive."
"We have issues with the certificates. All authorization processes need certificates, however, every three months we needed to change certificates. This process iss complicated for us because Citrix does not have a not user-friendly interface and does not off user-friendly services. This needs a lot of improvement."
"Finding relevant documentation for learning NetScaler can be challenging, especially for beginners who prefer a web interface over command-line interfaces."
"Deployment is complicated."
"The technical support could be improved. They do not respond or assist customers in a timely manner."
"The solution should be able to scale more effectively than it does."
"Citrix is more expensive than Horizon."
"The only thing customers told me that could be improved is that they would like to be able to purchase and receive the products in one box, rather than two boxes. This is something related to marketing, though."
"There are some drawbacks, such as using EUG for specific configurations. It could be improved."
 

Pricing and Cost Advice

"The price is reasonable, more so than other products."
"Cost is a bit on the higher side. Big companies can afford it."
"While I would have to check on the price of the solution, I feel it to be okay and it matches the market price."
"They have competitive pricing."
"They only offer a yearly licensing plan."
"The product is expensive."
"Our licensing fees are paid annually and the cost is between €600 and €800 (approximately $665.00 to $885.00 USD)."
"The pricing is less compared to other web applications."
"On a scale from one to ten, where one is cheap and ten is expensive, I rate the solution's pricing a five out of ten."
"It is a very expensive solution. The price is very high. A lot of customers tell us that they would love to use Imperva more. I have some customers who have 50 websites, but they have only 10 websites on Imperva because of the price. They would love to have all their websites running through Imperva, but they can't. They have to choose the more critical websites to protect because the price is very high. It is a very good product, but it is too expensive. If you buy a plan for 20 megabytes and you don't consume all of your 20 megabytes, it is okay, but if you consume more, you are charged for the superior traffic."
"Imperva charges us based on bandwidth, which is better than other vendors that charge us according to data transfer."
"We have an issue with Imperva Incapsula in the Iraqi market because of the high price."
"Pricing could be more competitive."
"The license is on a yearly basis."
"Everybody complains about the price of this solution."
"It is not expensive compared to the other similar solutions in this category."
"In Turkey, everything is good, but it seems expensive for us due to the currency exchange. I don't have a specific rating scale, but if I had to rate the price, I would say it's around a six out of ten."
"Its licensing cost is much higher than other products, but it is acceptable because it is a one-time investment, and we are getting our requirements fulfilled when we buy this product. So, there is no issue with the pricing."
"NetScaler does the same thing as an F5 and it's cheaper."
"After deployment, Citrix Netscaler shifted to a subscription-based license scheme for support, which is slightly more expensive."
"Price-wise, I feel that the solution is a little bit expensive."
"Our licensing fees including technical support are approximately $3,500 USD."
"There isn't much of a difference between the cost of Citrix and that of other similar solutions."
"We have a yearly licencing fee, and there are no additional costs."
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Comparison Review

it_user68487 - PeerSpot reviewer
Security Expert with 51-200 employees
Nov 6, 2013
CloudFlare vs Incapsula: Web Application Firewall
CloudFlare vs Incapsula: Round 2 Web Application Firewall Comparative Penetration Testing Analysis Report v1.0 Summary This document contains the results of a second comparative penetration test conducted by a team of security specialists at Zero Science Lab against two cloud-based Web…
 

Top Industries

By visitors reading reviews
Computer Software Company
11%
Financial Services Firm
9%
Manufacturing Company
7%
University
6%
Financial Services Firm
12%
Computer Software Company
9%
Manufacturing Company
9%
Insurance Company
6%
Computer Software Company
12%
Government
9%
Manufacturing Company
8%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise8
Large Enterprise11
By reviewers
Company SizeCount
Small Business83
Midsize Enterprise25
Large Enterprise61
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise23
Large Enterprise57
 

Questions from the Community

What do you like most about Barracuda Web Application Firewall?
It significantly improved our overall web security posture, addressing intrusions and enhancing control over web URLs...
What is your primary use case for Barracuda Web Application Firewall?
I am not using the API protection feature right now because I don't host any APIs through Barracuda Web Application F...
What is your experience regarding pricing and costs for Barracuda Web Application Firewall?
At the time I was acquiring Barracuda Web Application Firewall, I found it costly compared to other products. To over...
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...
What do you like most about Imperva Incapsula?
We use Imperva DDoS to stop DDoS attacks and reduce the amount of unwanted queries against web services or web scraping.
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 provi...
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 ente...
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...
What needs improvement with Citrix ADC?
Citrix NetScaler is a robust product, but mastering it requires significant learning and training due to its complexi...
 

Also Known As

No data available
Imperva Bot Management, Imperva Web Application Firewall, Imperva API Security
Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall, NetScaler VPX - Customer Licensed
 

Overview

 

Sample Customers

Oracle, CBS, Pioneer, Hyundai, Publix, Barnes Noble, Calzedonia, Nordstrom, Samsung, Nascar
Hitachi, BNZ, Bitstamp, Moz, InnoGames, BTCChina, Wix, LivePerson, Zillow and more.
ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk
Find out what your peers are saying about Fortinet, F5, Imperva and others in Web Application Firewall (WAF). Updated: February 2026.
881,733 professionals have used our research since 2012.