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A10 Networks Thunder ADC vs NetScaler comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 25, 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

A10 Networks Thunder ADC
Ranking in Application Delivery Controllers (ADC)
10th
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
22
Ranking in other categories
No ranking in other categories
NetScaler
Ranking in Application Delivery Controllers (ADC)
1st
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
107
Ranking in other categories
Network Management Applications (5th), Web Application Firewall (WAF) (11th)
 

Mindshare comparison

As of September 2025, in the Application Delivery Controllers (ADC) category, the mindshare of A10 Networks Thunder ADC is 5.0%, up from 4.9% compared to the previous year. The mindshare of NetScaler is 14.3%, down from 16.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Delivery Controllers (ADC) Market Share Distribution
ProductMarket Share (%)
NetScaler14.3%
A10 Networks Thunder ADC5.0%
Other80.7%
Application Delivery Controllers (ADC)
 

Featured Reviews

RonaldoDE Melo - PeerSpot reviewer
Protects connection and servers from direct access with control access feature
The initial setup is very simple. The issue is that it achieves high output across all its features, specifically the output ports. This affects the customer's solution because sometimes, the customer is even aware of the user's activity on certain servers. If you have all the necessary information, we can quickly deploy the solution within two to three days. The size of the Thunder ADC depends on its configuration. For example, the cache converter typically includes more than two rack units, often requiring at least three rack units for adequate space. I rate it a ten out of ten, where one is difficult, and ten is easy.
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

"The Global Server Load Balancing (GSLB) is simple to use."
"The solution is stable."
"The solution is user-friendly and the CLA troubleshooting is easier compared to other solutions."
"A10 explained why the latency dropped significantly on a site that we have."
"The most valuable features in A10 Networks Thunder ADC are the ease of configuration, user-friendliness, and simplicity to sell to customers."
"We do have the option of creating virtual chassis, so that gives it a bit more security. If we find an application which is not going to play well in the main pool, we can easily create a virtual chassis and have that application in that virtual chassis. With the virtual chassis we can also create system partitions and have a test system for test applications, and have the others elsewhere."
"It is very useful to have a simple dashboard where you can login and look into what your traffic patterns are, then look and see what times of day you're experiencing the heaviest traffic. You can quickly identify if you are possibly having a security issue or security breach. It makes it very easy to use the box."
"For the past two and a half years, we have not had a need to open a tech support ticket. It is really stable. In the past, our experience with tech support was that they were extremely helpful."
"The NetScaler appliance has provided a lot of customers with greater high availability for their enterprise applications within a single site and across multiple locations."
"The most valuable feature is the SSL VPN."
"The flexibility in configuration options is impressive."
"The feature that I have found most valuable is its load balancing."
"The best feature of Citrix is its track record of stability in its features."
"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."
"One of the most beneficial features for application delivery is its integration with Citrix Storefront, facilitating user logins and ensuring continuity during data center outages."
"Content filtering, security layer, and application customization features are the most valuable."
 

Cons

"The solution does logging, but the logging capacity is really small. Because we have a bunch of traffic here, we usually get a logging-side warning that "This many logs were lost because of the heavy traffic." If the logging was better, that would be very good."
"When it comes to support, there is always room for improvement. First call resolution is not always there for urgent issues. The first call resolution is something that could be improved upon."
"Currently, the solution's WAF features are fewer. They should consider increasing their WAF features."
"There are competitors that have more features."
"The setup depends on certain situations. In certain scenarios, it may be more complex than others. For example, while the initial configuration may be easy, the environment itself may be complex and that may limit the ease of deployment. It is easy for those who understand their environment."
"I would like them to provide learning tips and a community forum where users can share ideas. They need more detailed support articles on the A10 website."
"Traffic flow issues are very difficult, as there's no means for us to analyze the traffic coming in or out of the appliance without technical support."
"A graphical dashboard for analyzing performance is needed."
"In every release - and it doesn't matter if it's a minor release or a major release - they keep moving things around and they keep changing the mechanism. So certain things can work in one version one way, and everything works really well, then when you upgrade it to the next version, it breaks everything because they have a new way of doing it."
"I would like to see them make it easier to do some of the more complex things. For example, a web re-direct requires two pieces to it. You have two ports and when people want to go to a web page, they just type in the webpage that on the backend it will redirect them to a secure link. The initial setup of that is cumbersome because you have to do it twice. There are things that can be replicated. The IP address, for example, is the same. This change would go a long way. Don't make me do it twice and don't make me have to read tons of documentation to figure out how to do it. Ease of configuration for some of the more complex processes would be a good improvement."
"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."
"Development team's response time could be better."
"We had some bugs in the previous firmware. These were not big issues, but more testing on the firmware would be key to happier customers."
"The solution's pricing is a big concern and should be improved."
"The tool needs to add a feature where we can access the network policy access manager."
"Maybe creating policies with simple regular expressions."
 

Pricing and Cost Advice

"The price of the maintenance support is too expensive."
"The solution costs less than its competitors."
"The pricing is a third of the price of the F5 competition."
"The price is good they are very comparative."
"We just pay for support in addition to our licensing."
"For the hardware and license, we paid $35,000 per box, which was a one-time cost. Then, for the Gold Support on the two boxes, we pay $9400 annually."
"As for the initial investment in the hardware, F5 and A10 are quite similar now. For the current A10 solution, the initial cost was about $36,000. As for annual support, the F5 solution would be between $10,000 and $12,000, while the A10 is $2,200 a year for support."
"There were budgetary constraints that keep us from investing in the single pane of glass traffic management feature. We saw a demo of this feature about a year to a year and a half ago."
"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 very pricey, but we get it. If you need the best, money shouldn't be a problem."
"We are quite happy with price. It's not too high."
"F5 BIG-IP is much more expensive than Citrix ADC. For example, If we choose two platforms, Citrix ADC, 3000 version, and we choose F5, F4200 version. F5 BIG-IP has connections, timers, and throughput similar to Citrix ADC, but the price is very expensive."
"I rate the pricing an eight out of ten since it is expensive."
"On a scale from one to ten, where one is cheap, and ten is expensive, I rate the solution's pricing an eight or nine out of ten."
"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."
"After deployment, Citrix Netscaler shifted to a subscription-based license scheme for support, which is slightly more expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
Financial Services Firm
12%
University
6%
Government
6%
Computer Software Company
15%
Financial Services Firm
10%
Government
9%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise5
Large Enterprise11
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise23
Large Enterprise57
 

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
I would recommend A10 Networks due that it delivers high performance in a small form factor to reduce OPEX with significantly lower power usage, rack space, and cooling requirements compared to oth...
Do you recommend A10 Networks Thunder ADC?
I do recommend A10 Networks Thunder ADC. It's very user-friendly, easy to configure, and flexible. It is a very useful solution - especially now, when a lot of employees are working remotely. I hav...
What do you like most about A10 Networks Thunder ADC?
A10 Networks Thunder ADC is an easy-to-use and flexible solution.
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 ...
 

Also Known As

Thunder ADC, AX Series
Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall, NetScaler VPX - Customer Licensed
 

Overview

 

Sample Customers

123inkt.nl, Bentley University, Box, Brainshark, Buienradar, Capgemini, CGN/LSN & NAT64, Chengdu Telecom, Club One, Code Ready, CRC Health Group, Cyso, Deutsche Telekom, Earth Class Mail, Excite, FFF Enterprises, Florence County, Framingham State University, From30
ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk
Find out what your peers are saying about A10 Networks Thunder ADC vs. NetScaler and other solutions. Updated: September 2025.
867,676 professionals have used our research since 2012.