Imperva Web Application Firewall vs NetScaler comparison

Imperva and NetScaler are both solutions in the Web Application Firewall (WAF) category. Imperva is ranked #4 with an average rating of 8.9, while NetScaler is ranked #12 with an average rating of 8.3. Additionally, 97% of Imperva users are willing to recommend the solution, compared to 91% of NetScaler users who would recommend it.

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Executive SummaryUpdated on Jan 1, 2025

NetScaler and Imperva Web Application Firewall compete in application protection. User feedback indicates NetScaler holds an edge due to favorable deployment flexibility and robust support, while Imperva is recognized for its superior security features despite higher costs.

Features: NetScaler offers flexible deployment models, including the TriScale architecture, SSL offload capabilities, and global server load balancing to aid in cost management. Imperva provides inline transfer mode, strong threat intelligence, and extensive web application security for comprehensive protection.

Room for Improvement: NetScaler can enhance feature innovation, improve configuration capabilities, and manage frequent disruptive updates. Imperva could benefit from reducing its pricing and simplifying its licensing structure, alongside enhancing its configuration interface and management processes.

Ease of Deployment and Customer Service: NetScaler boasts adaptable deployment across on-premises and hybrid clouds but requires simplified configuration management. Its customer service sees mixed reviews in terms of responsiveness. Imperva is straightforward in cloud deployment but less so on-premises, with customer support noted for lack of responsiveness and high pricing complexities.

Pricing and ROI: NetScaler's pricing is considered high and complex, yet its ROI remains favorable due to management cost savings. Imperva's pricing is premium, justified by advanced security features, with its ROI seen as worthwhile by various users, though perceptions of cost-effectiveness differ.

To learn more, read our detailed Imperva Web Application Firewall vs. NetScaler Report (Updated: April 2025).

Buyer's Guide

Imperva Web Application Firewall vs. NetScaler

April 2025

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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

Cloudflare

Featured Reviews

Spencer Malmad

Owner at Tech Exchange

It's easy to set up because you point the DNS to it, and it's working in under 15 minutes

Cloudflare is highly scalable. Cloudflare is a system with a web portal that the end users like me see. It's a console where we can adjust the DNS, caching, and security features all in that console. Cloudflare owns thousands of servers across the world that cache the data. It's a powerful solution. When clients sign up for Cloudflare, they're getting this monster content delivery network, security, and a web application firewall in one. It's all rolled into one, and it's massive. Unless you have your website hosted on a massive hosting provider, there's no way that you can deliver the amount of data that Cloudflare can provide to the end users. If you have static content, there's no way that you can ever match what Cloudflare can do. Obviously, there are competitors to Cloudflare that do the same, but I'm saying other types of solutions. Let's say you go with F5. Great, that's on-prem. That's in your colo. You can't deliver as much data to the internet as you can with a CDN. You don't have to spend $20,000 on a net scaler, F5, or whatever Cisco's selling now. You don't have to buy that. You pay them $50 a month or $150 a month. It's totally worth it because even in five years, you'll never get the performance value, not just the actual ROI. You have to consider how much throughput you can get with Cloudflare.

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Abdullah Jin

Principal Cyber Prevent and Defense Engineer at a comms service provider with 1,001-5,000 employees

Offers bot protection and DDoS Protection and protects public-facing portals

Support is one thing I wish Imperva could improve. They follow the phone model and keep rotating you from one customer service person to another. The layer one support isn't very clear about the workings of the product. My feedback is primarily about Imperva Cloud, not on-premise. On-premise is a whole new story. Support is the issue for Imperva Cloud. It's also a bit pricey. It's a premium service and very expensive. The licensing model is not very straightforward. Every feature is priced separately, and to enjoy maximum protection, you'll have to spend a lot of money. The licensing model is a bit complex, and each feature is very pricey. For example, API security and web application protection are two separate license packages.

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DEMİRHAN ÇAVUŞOĞLU

Cloud Consultant at Migros Ticaret A.Ş.

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.

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Quotes from Members

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

Pros

"The most valuable feature of Cloudflare is the GUI. You are able to control the solution very well through the interface. There is a lot of functionality that is embedded in the service."

"The features of Cloudflare were found to be more beneficial and led to the decision to utilize it over other options."

"The UI is good."

"Easier http to https redirect using page rules"

"The most valuable feature of Cloudflare is that it has a free version. They give us the free version with the anti-DDoS features and also the load balancing solution."

"The DDoS protection is the most valuable aspect of the solution."

"The solution is stable, and the DNS servers are simple to use."

"Cloudflare offers CDN and DDoS protection. We have the front end, API, and database in how you structure applications."

More Cloudflare pros

"The solution is stable."

"The most valuable features of the Imperva Web Application Firewall are DDoS, malware, and the other malicious threat prevention it provides. Additionally, third-party integration is available. You can forward the log for further analysis."

"Data masking is the most valuable feature of this solution."

"Imperva is a Gartner leader, so its scalability, performance, and features are excellent."

"I am impressed with the product's scalability, availability, easy management, and security. We were able to integrate the product with Azure and Sentinel."

"I have had a positive experience with Imperva Web Application Firewall's tech support so far. They are knowledgeable and respond on time."

"The dynamic profiling of websites is the solution's most valuable feature. The security is also good."

"There are some features that are configured by default, so even without doing much, it can still provide a level of protection."

More Imperva Web Application Firewall pros

"Citrix Director has been great. It gives us one pane of glass to be able to monitor what's going on with the user sessions as well as to keep on top of the virtual desktops, any servers that may be offline or behaving suspiciously, or any troublesome spots like disconnections. We also use Citrix Studio for maintaining the actual servers that are hosting these applications. We use it for delivery groups in case we need to modify delivery groups in regards to which groups have access to which applications. It has been very helpful."

"SSL Offload"

"One feature that works really well is the SSL VPN. It's very easy to set up and you can go very granular with it. You can define what user groups get what kind of access and the management overhead is very low."

"Content Switching provides flexibility for routing traffic as desired to designated real servers. It also provides good geo capabilities through its GSLB feature."

"Unified Gateway allows me to provide secure external access to applications for suppliers and customers while requiring Multi-Factor Authentication."

"The load balancing feature and the fact that you can do context switching in the WAF are the most valuable. We majorly use it for load balancing, but we also use it for context switching in the WAF. It is also robust and very easy to work with and manage."

"It is the best product out there."

"The most valuable feature for us is the application firewalling in Citrix NetScaler, ensuring only valid traffic enters our environment."

More NetScaler pros

Cons

"We are a product integrator and reseller, and we would like to have a better partner relationship, similar to a channel sales relationship. Sometimes we are on our own or get diverted by Cloudflare because they have direct sales, which competes with us and makes it difficult to build a relationship with this company since we want to be an MSP or a managed service provider for the solution."

"The documentation could improve for Cloudflare DNS."

"There should be a specific price list for enterprise-level customers."

"Cloudflare doesn't have a reverse lookup. We can only do a DNS lookup to get the IP address from the hostname. It doesn't work if you want to look up the hostname from an IPA address."

"Cloudflare should add more documentation and pricing to the cloud version."

"Cloudflare could offer a better view or maybe dashboards of the main resources used in the client."

"It would be good if Cloudflare could have more servers for better traffic routing or an increase in the traffic routed. This is what I'd like to improve in Cloudflare."

"Although I think it's quite good, it doesn't provide me with all the features I would expect to have if I were using Imperva."

More Cloudflare cons

"I don't really use it and therefore can't speak to areas of improvement."

"It should be more user-friendly. Like other web solutions, it would be helpful to be able to easily do policy configuration and identification inside the application. Understanding the in-depth configuration of a policy is somewhat difficult for an engineer, and they can improve that."

"The tool needs to improve CPU and storage memory."

"The initial setup could be simplified. Every time you have to install the solution you have to get in touch with support or somebody that can to do that for you."

"Their portal is very limited and needs improvement."

"The UI interface needs improvement."

"Support is one thing I wish Imperva could improve."

"If they can bring in generative AI features, that would be useful."

More Imperva Web Application Firewall cons

"Citrix ADC can be really complex. It isn't very simple like some other appliances that I've worked with. You need a lot of skill and experience to manage it. I'm not talking about a year or two. You need at least four years to understand it very well. It is not that easy to learn. They should make it a lot simpler for users to understand the management of it. They can also provide some additional training. The material they have on the site is not sufficient enough for you to understand how to manage it. Their training is expensive, and not everyone has the funds and experience for it. Citrix isn't very popular around these parts of the world. So, it can use some more marketing, sales, enlightenment, and advertisement. These could bring more market for them. Basically, there are just a few companies that really go for Citrix. Most of the companies go for VMware because they marketed themselves more than Citrix. There isn't much difference between Citrix and VMware. VMware is a little more robust than Citrix. Citrix has focused more on desktops rather than server virtualization, and that's the advantage VMware has over Citrix. Citrix also needs to educate and inform users about the infrastructure that is supported with a version. Currently, if the customers don't look at the datasheet, they might miss this important information."

"The solution should be able to scale more effectively than it does."

"They need to make the solution a little more familiar with easy study guides, learning videos, etc."

"Reducing the overhead required for AppFlow data collection, specifically for HDX Insight, would be a huge improvement."

"I feel that Citrix NetScaler's customer support needs to improve."

"The main areas for improvement would be around documentation and support. If a feature can be used in two or three ways, show that feature being used in all of those ways. Documentation seems to only cover the primary use case and leaves you to either run through trial and error or consult the user community. In terms of support, I have never actually had them solve any of my issues. I have always solved them myself and then provided the resolution to support."

"Too many bugs in the software and it's always difficult when you need to update."

"Native integration needs to be improved. You cannot build ISE codes natively. For DevOps, integration would be very helpful because it would be a lot simpler from an operational standpoint."

More NetScaler cons

Pricing and Cost Advice

"The solution has many features but there are ones that you need to pay for. Sometimes you have to find out which is available for free and which you have to pay for."

"The cost primarily depends on the size of the organization."

"I give the price a five out of ten."

"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."

"So far I use free tier and happy with it. You can subscribe to business package if needed."

"The price of the solution is expensive."

"That is one of the great features. I was able to access the majority of the features and services for free."

"Cloudflare's pricing is not much higher and is good for middle-level organizations."

More Cloudflare pricing and cost advice

"There are a couple of different licensing models."

"The price of this solution is a little bit high compared to competitors."

"The pricing is somewhat expensive. It is actually a huge investment when compared to other countries."

"Everybody complains about the price of this solution."

"The price is high compared to other solutions like FortiWeb."

"The solution's pricing is an issue."

"It's an excellent product, but it can be very costly."

"It is very costly, but the return on investment is very high. Its cost was around $70,000, and we got it back in just six months."

More Imperva Web Application Firewall pricing and cost advice

"After deployment, Citrix Netscaler shifted to a subscription-based license scheme for support, which is slightly more expensive."

"The licenses for this product are payable as a yearly subscription, and carry a high price-point. The subscription scheme is quite complicated, and costs will increase with each additional feature that is required, outside of the basic setup."

"Its price is comparable to others and affordable."

"The pricing for Citrix Web App and API Protection is unreasonable. I don't know the exact price, but I heard it's tens of thousands and it's a bit too much for the small country I live in."

"It is an enterprise solution. Thus, its costs are reasonable."

"Ninety day free trial makes it easy to try out this solution."

"We have a yearly licencing fee, and there are no additional costs."

"The solution's pricing is very high compared to its competitors."

More NetScaler pricing and cost advice

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Top Industries

By visitors reading reviews

Educational Organization

17%

Computer Software Company

14%

Comms Service Provider

Financial Services Firm

17%

Computer Software Company

13%

Insurance Company

Manufacturing Company

Computer Software Company

15%

Educational Organization

13%

Financial Services Firm

11%

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?

Cloudflare. We are moving from Akamai prolexic to Cloudflare. Cloudflare anycast network outperforms Akamai static GR...

See all answers

Which would you choose - Cloudflare DNS or Quad9?

Cloudflare DNS is a very fast, very reliable public DNS resolver. It is an enterprise-grade authoritative DNS service...

See all answers

What do you like most about Cloudflare?

Cloudflare offers CDN and DDoS protection. We have the front end, API, and database in how you structure applications.

See all answers

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?

My recommendation is Imperva.

See all answers

Is Citrix ADC (formerly Netscaler) the best ADC to use and if not why?

For ADC, any ADC can do a good job. But in case if you want to add WAF functionality to the same ADC hardware you hav...

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DDoS solutions: Any other solutions to consider aside from Radware DDoS Protection Service and F5 Silverline DDoS Protection?

You can have a look to Imperva Cloud WAF, the anti-DDoS mitigation is under 1s and works very well. I observed a lot ...

See all answers

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...

See all answers

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...

See all answers

What needs improvement with Citrix ADC?

Citrix NetScaler is a robust product, but mastering it requires significant learning and training due to its complexi...

See all answers

Comparisons

Quad9 vs Cloudflare

Compared 50% of the time

Akamai vs Cloudflare

Compared 4% of the time

Azure Front Door vs Cloudflare

Compared 3% of the time

Azure DNS vs Cloudflare

Compared 3% of the time

Imperva DDoS vs Cloudflare

Compared 2% of the time

More Cloudflare Competitors

Microsoft Azure Application Gateway vs Imperva Web Application Firewall

Compared 15% of the time

F5 Advanced WAF vs Imperva Web Application Firewall

Compared 13% of the time

Azure Front Door vs Imperva Web Application Firewall

Compared 11% of the time

AWS WAF vs Imperva Web Application Firewall

Compared 9% of the time

F5 Distributed Cloud Services vs Imperva Web Application Firewall

Compared 3% of the time

More Imperva Web Application Firewall Competitors

Microsoft Azure Application Gateway vs NetScaler

Compared 11% of the time

HAProxy vs NetScaler

Compared 11% of the time

Fortinet FortiADC vs NetScaler

Compared 9% of the time

F5 BIG-IP Local Traffic Manager (LTM) vs NetScaler

Compared 8% of the time

More NetScaler Competitors

Product Reports

Buyer's Guide

Cloudflare

April 2025

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Buyer's Guide

Imperva Web Application Firewall

April 2025

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Buyer's Guide

NetScaler

April 2025

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Also Known As

Cloudflare DNS

No data available

Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall

Overview

Cloudflare is a highly-regarded Content Delivery Network (CDN) and a Distributed Denial-of-Service (DDoS) protection solution. The robust global connectivity cloud platform that is Cloudflare ensures users are able to connect to the Internet quickly, securely, and reliably. Cloudflare is one of the world's largest networks in the marketplace today. Using Cloudflare, businesses, educational entities, NGOs, vloggers, bloggers, and anyone else with an internet presence can experience more secure, faster websites and applications.

Currently, there are millions of Internet locations on Cloudflare, and the Cloudflare network
continues to grow every day by the thousands. The solution is able to fulfill the requests for
millions of websites seamlessly and serves on average 45 million HTTP requests per second.

Cloudflare has safe, secure data centers in close to 300 cities worldwide to ensure every
client request is filled as quickly as possible. It is Cloudflare’s edge network that makes this
possible by keeping content and other services as close to each client as possible, so the
information requests are always only seconds away.

Many organizations that work in democracy, civil society, human rights, or the arts are able to
access Cloudflare's highest levels of protection for free via Project Galileo. Additionally, official
election websites can be secured from hacking and fraud through Cloudflare’s Project
Athenian, also at no additional cost.

Cloudflare can also help organizations of all sizes develop a robust zero-trust strategy to
ensure the highest levels of productivity and profitability. Employees, stakeholders, and end users have a greater level of satisfaction and overall improved user experience, which can, in
turn, result in higher revenues and overall ROI. Zero-trust and BYOD (bring your own device)
access ensure end users and employees always have the best resources and technology
available to them at all times.

Cloudflare benefits

Cloudflare has many benefits. Some of its most valuable benefits include:

- Faster load times

- Robust DNS security

- Intuitive cloud Web Application Firewall (WAF)

- Free universal SSL

- Image enhancement

- Automatic browser caching

- Next-generation cloud load balancer

- Accelerated Mobile Pages (AMP)

- Rate limiting

- Minification

- Zero-trust capabilities

- Cost-effective

- Reduced carbon footprint

Reviews from real users

“Many websites require an SSL certificate because they sell stuff and want SSL. Cloudflare
comes with an SSL certificate built in. It's automatic. You sign yourself up for Cloudflare, and
an SSL certificate automatically protects your website. If you have a connection between your
website and your host, the server, Cloudflare, and the host, you don't necessarily need a
certificate.” Spencer M., Owner at Tech Exchange

“What I like best about Cloudflare is that my company can use it to trace and manage
applications and monitor traffic. The solution tells you if there's a spike in traffic. Cloudflare
also sends you a link to check your equipment and deployment and track it through peering,
so it's a valuable tool.” Daniel P., Network Engineer at Ufinet

“The most valuable feature of Cloudflare is the GUI. You are able to control the solution very
well through the interface. There is a lot of functionality that is embedded in the service.” PeerSpot user, Competence Center Manager at a tech services company

Cloudflare

Imperva Web Application Firewall is a versatile solution that protects web applications and databases from various attacks, including DDoS, cross-site scripting, and SQL injection attacks. It offers data security, availability, and access control and can be deployed on-premises or on the cloud.

The solution has good security against web attacks and offers advanced bot protection, API security, and mitigation features. Imperva WAF is easy to configure and deploy; it has good customer service and an excellent user interface.

Imperva

One platform for a consistent application delivery and security experience because nobody has time to learn multiple systems to manage ADC deployments. NetScaler is built with a single code base using a software-based architecture, so no matter which ADC form factor you choose — hardware, virtual machine, bare metal, or container — the behavior will be the same.

NetScaler

Sample Customers

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.

BlueCross BlueShield, eHarmony, EMF Broadcasting, GE Healthcare, Metro Bank, The Motley Fool, Siemens

ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk

Buyer's Guide

Imperva Web Application Firewall vs. NetScaler

April 2025

Free Report: Imperva Web Application Firewall vs. NetScaler

Find out what your peers are saying about Imperva Web Application Firewall vs. NetScaler and other solutions. Updated: April 2025.

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