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Imperva DDoS vs NetScaler comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 1, 2025

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
Sponsored
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
75
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (14th)
Imperva DDoS
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
77
Ranking in other categories
CDN (7th), Web Application Firewall (WAF) (23rd), Distributed Denial-of-Service (DDoS) Protection (9th)
NetScaler
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
107
Ranking in other categories
Application Delivery Controllers (ADC) (1st), Network Management Applications (3rd), Web Application Firewall (WAF) (12th)
 

Featured Reviews

Spencer Malmad - PeerSpot reviewer
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.
Syed Ubaid Ali Jafri - PeerSpot reviewer
I like the content monitoring feature which I haven't seen in other WAF solutions.
They could improve by minimizing false positive results. Although this occurs less with Imperva, we would like to see some further improvements. We have been using this product for last 1 years, it's result is very impressive. But due to the excessive load on the Web site where thousands of requests‎ are generated from legitimate users, however the request in which any sequential or specialised characters are requested would be directly blocked by impreva . Currently imperva blocks the special character request generated from the user, as I conduct a test where I am parsing the encoded html values of the same special characters to the input field, imperva bypasses these encoded values for example : ' i.e. %27 or / i.e %2F, the WAF bypasses these encoded characters. I hope that this device should have a capability to detect the pattern which is associated with Xss or Xsrf, rather then by not blocking the request which contains any special characters.
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.

Quotes from Members

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

Pros

"It is a fast and secure DNS."
"It's very user-friendly."
"Cloudflare allows us to self-host services such as Rocket.Chat and Node-RED, in high-availability mode, thanks to round robin DNS which allows us to share one hostname between our two locations."
"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."
"Its most significant benefit to date is the speed with which it refreshes DNS records on the internet once you change it. If you are changing a website or registering a new record, it is very quick."
"It is a fast and secure DNS."
"The most valuable feature is its usability."
"I get a lot of value from Cloudflare's API because it enables you to build a separate environment inside the solution. You can create a domain for performing test requests before you move to the production environment and connect various domains."
"Technical support was very helpful."
"The setup of Imperva DDoS was easy."
"It's very pretty easy to onboard the URL."
"On the site security, I can see which countries have incidents, whether it was a robot attack, a real human user, or non-human user."
"On the activity log, I can see the exact details, the visit, and the threat."
"The dashboard is good and user-friendly."
"The solution has a very good interface."
"Imperva Incapsula has many valuable features. One, it protects the top 10 OWAS vulnerability, the open web application software platform, this is standard. Secondly, it protects against broken authentication. As well, it has remote execution of code."
"Available on any device and can be accessed on a wide area network."
"The MAS integration for HDX Insight has provided teams with significant visibility into network performance of the user's connection."
"The advantage of Citrix Web App and API Protection is just its graphic user interface for beginners. The solution is nothing special, but we have to use it for the corporation. Another advantage of Citrix Web App and API Protection is that we have our copy to test things and get the know-how of it."
"The most valuable feature for us is the application firewalling in Citrix NetScaler, ensuring only valid traffic enters our environment."
"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."
"The load balancing and VPN features are most valuable. AAA authentication is also valuable."
"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."
 

Cons

"I would like Cloudflare to offer a dedicated account manager for large enterprise clients like us."
"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."
"Sometimes their more advanced caching tools can cause higher first-byte times and problems with JavaScript."
"The tool needs to improve caching of servers. The product needs to include PFX certificate as well."
"Cloudflare could be improved by introducing a mid-tier pricing option."
"Integration involving API with other products could be more user-friendly."
"The pricing could be improved."
"The product support needs to be accessible from more places, a wider area of coverage."
"Incapsula services also provides load balancing services for their service IP address environment. So far, with monitoring their services, the IP address was only changed once."
"It needs to be improved every time there are new attacks."
"Imperva DDoS does not provide version control."
"I am not sure if this application has a policy where you can create your custom policy and run it as our firewall. We should have some ability to also create some custom policy, then run it as a firewall."
"The product could use a broader scope in the area of policies."
"I would like to have support for SSL management and secure DNS."
"The solution should integrate with something that looks at continuous security management."
"Some maintenance must be performed by our IT team."
"I would like to see the virtual and desktop license included in the pricing."
"Citrix NetScaler has been recently acquired by another company and the support has been negatively impacted, the solution is at its end of life. The support for the solution could improve. The sales team needs to be improved."
"The tool needs to add a feature where we can access the network policy access manager."
"When a new version comes out, sometimes, my existing configuration gets wiped out. They should work on this so that my existing configuration doesn't get impacted with an upgrade to a newer version. There could also reduce frequent firmware upgrade activities and have a stable version so that once we upgrade it, we don't have to upgrade it for two to three years."
"They can improve the scalability and the multi-tenancy feature. We recently tried to configure an authentication, and we ran into some issues while using the web-based GUI. It was very slow when you log in with your credentials in the web-based GUI. Each time we clicked on the menu, it tried to do the authentication. It works properly in the console."
"I would like to see support for scripting, like "iRule", which gives you the option to implement any configuration which is not available out of the box."
"I would like to see more integration for single sign-on."
"Citrix should improve the documentation. It is not really clear how to set up many features to our advantage. When we setup Citrix NetScaler ADC, we have to figure it out by ourselves without a lot of documentation."
 

Pricing and Cost Advice

"There are no additional costs beyond the standard licensing fees."
"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 product's pricing is cheap."
"The cost primarily depends on the size of the organization."
"We are using the free tier of the solution."
"The price is reasonable."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"So far I use free tier and happy with it. You can subscribe to business package if needed."
"The cost is somewhere around $10,000 a site. For every site, you pay individually. For every DNS entry, you have you pay."
"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."
"For enterprise contracts you will be in touch with a dedicated account manager who will guide you regarding licensing."
"The cost is on par with other solutions such as Cloudflare and Akamai."
"Varies depending on the needs of the customer."
"We have an issue with Imperva Incapsula in the Iraqi market because of the high price."
"Imperva charges us based on bandwidth, which is better than other vendors that charge us according to data transfer."
"There isn't much of a difference between the cost of Citrix and that of other similar solutions."
"Ninety day free trial makes it easy to try out this solution."
"It is true that it is a bit pricey compared to newer technologies coming to the market. For example, A10 is a load balancer that does everything that Citrix can and it does a lot more than what NetScaler does when it comes to the security space, and their prices are so cheap. Every box comes with its own license and support built into it. When you compare that with NetScaler, you have to buy licenses separately, you have to buy a support agreement that is going to be separate. A small NetScaler, even if it is a VPX which is a virtual server, could cost you close to $150,000 to $200,000 dollars. So the pricing is really high."
"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."
"We have a yearly licencing fee, and there are no additional costs."
"Citrix ADM costs us approximately $5000 per month."
"Citrix Web App and API Protection are in the middle when we talk about pricing and licensing"
"The firewall license is included by default, with no additional costs."
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Comparison Review

it_user68487 - PeerSpot reviewer
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
Educational Organization
17%
Computer Software Company
14%
Comms Service Provider
9%
Financial Services Firm
8%
Financial Services Firm
16%
Computer Software Company
14%
Manufacturing Company
9%
Government
7%
Computer Software Company
15%
Educational Organization
12%
Financial Services Firm
11%
Government
9%
 

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...
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...
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.
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 is rated a ten on a scale where ten is very expensive. The solution is only cloud-based and does not prov...
What needs improvement with Imperva DDoS?
Pricing can be improved, as it is quite expensive. Additionally, support response times for emails can sometimes be d...
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...
 

Comparisons

 

Also Known As

Cloudflare DNS
Imperva Incapsula
Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall
 

Overview

 

Sample Customers

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.
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 Imperva DDoS vs. NetScaler and other solutions. Updated: April 2025.
849,963 professionals have used our research since 2012.