A10 Networks Thunder ADC vs NetScaler comparison

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A10 Networks Thunder ADC

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Executive SummaryUpdated on Dec 17, 2024

A10 Networks Thunder ADC and Citrix NetScaler compete in the application delivery controller category. A10 Networks seems to have the upper hand in cost management and security features, while NetScaler leads in scalability and integration with Citrix products.

Features: A10 Networks Thunder ADC is notable for its all-inclusive licensing, advanced traffic management capabilities, and a broad security feature set, including DDoS mitigation. NetScaler stands out with its flexible deployment model, strong SSL offload capabilities, and comprehensive traffic and application reporting features. User reviews emphasize A10's security and simpler licensing, while NetScaler is recognized for its scalability.

Room for Improvement: A10 Networks Thunder ADC could enhance third-party integration, mobile web acceleration, and US support accessibility, while also addressing potential legal concerns. NetScaler users have noted complex and costly licensing processes, difficulties in maintaining backward compatibility during updates, and a need for more intuitive documentation and support.

Ease of Deployment and Customer Service: A10 Networks Thunder ADC benefits from effective technical support and ease of on-premises setup but could improve support responsiveness in emergencies. NetScaler offers extensive deployment options, including cloud environments, but its customer service could be quicker in problem resolution and less complex, especially during its transition phase.

Pricing and ROI: A10 Networks Thunder ADC provides competitive pricing and high ROI through streamlined operations and reduced costs. Its all-inclusive licensing model boosts its value proposition. NetScaler demands higher prices due to a hefty licensing structure and separate feature costs, with ROI linked to its comprehensive features and Citrix integration capabilities.

To learn more, read our detailed A10 Networks Thunder ADC vs. NetScaler Report (Updated: March 2025).

A10 Networks Thunder ADC vs. NetScaler

March 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

A10 Networks Thunder ADC

Ranking in Application Delivery Controllers (ADC)

10th

Average Rating

8.4

Reviews Sentiment

7.2

Number of Reviews

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 (4th), Web Application Firewall (WAF) (11th)

Mindshare comparison

As of March 2025, in the Application Delivery Controllers (ADC) category, the mindshare of A10 Networks Thunder ADC is 5.0%, up from 4.7% compared to the previous year. The mindshare of NetScaler is 15.1%, down from 15.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Application Delivery Controllers (ADC)

Featured Reviews

SatishBabu

Vice President at a computer software company with 1,001-5,000 employees

Known for its load balancing capabilities, the WAF features need to be improved

The solution's initial setup process was easy. For the installation, it takes around five minutes. One person can do the maintenance since it is not required much. So, it's a one-time solution, and its maintenance is fine. The number of people required for maintenance depends on the clients as well. One or two engineers are fine to serve around a hundred clients. If you have a number of devices, more people are needed for their maintenance because of the patching it requires during regular operations. Only for the maintenance, one engineer's fine. However, for regular operations, we need multiple people.

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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 ADCs are pretty straightforward and easy to use. There is a GUI base where you can go in and see everything, but they also have a CLI base where you can use a command and get the information that you want, very fast."

"It's a very friendly solution, easy to configure and it's very flexible."

"Feature-wise, A10 Networks Thunder ADC is better for troubleshooting...Stability-wise, I rate the solution a nine out of ten."

"A10 explained why the latency dropped significantly on a site that we have."

"A lot of our SSL management is done on the front-end side, so there is one pane of glass for a lot of our security certificates. It gives us visibility. It also falls under when certificates are going to expire. Even for servers that are coming down, we can see how that affects the traffic flow by using the services map."

"We have two appliances and I'm able to move my application from one appliance to another. I don't have to move my whole A10 to be active on the other side or to be passive on the other side. If an application is having a problem, I can just move it using a command."

"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."

"It helps with the efficiency of application deployments and data security."

More A10 Networks Thunder ADC pros

"The solution's technical support is good."

"The load balancing and VPN features are most valuable. AAA authentication is also valuable."

"It allows students to access required software for their studies."

"The most valuable feature of Citrix NetScaler was the seamless integration. Additionally, the UI is good."

"This solution allows the user to easily scale out application delivery, and provides secure remote access."

"My clients use it for load balancing."

"From a security standpoint, It is a comprehensive solution in a single box."

"I find all of it to be valuable, because of the flexibility that is built into this product."

More NetScaler pros

Cons

"There are competitors that have more features."

"There is room for improvement in the GUI. I just migrated from the 2.7 software train to the 4.1, and there are still people on 2.7. The latter is a very old GUI if you compare it to F5. It's not as easy to use and a lot of things are missing. They've made a lot of improvements in the 4.1 step, but compared to the ease of use of F5, it's still quite difficult. For people who haven't got a lot of experience, the GUI can be quite challenging."

"Currently, the solution's WAF features are fewer. They should consider increasing their WAF features."

"We are starting to do a lot with containers and how the solution hooks into Kubernetes that we haven't explored. I'm hoping that they have a lot of hooks into Kubernetes. That would be the part for improvement: Marketing use cases with containers."

"It scaled well for our numbers, up to 3 million subscribers for our most crowded region but I would like to see the same scalability numbers for the virtualized version as well."

"There is two-factor authentication built-in, but it could be more robust."

"The interface and integrated custom applications can be a bit difficult."

"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."

More A10 Networks Thunder ADC cons

"Its GUI should be improved. Its CLI is powerful, but GUI needs more features."

"There are some features which are missing."

"Integration with other third party providers and third party applications could be better because it can be a bit complex at present."

"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."

"It was challenging explaining to customers that it's no longer NetScaler but ADC, and now it's not just ADC but also the rebranding from NetScaler."

"Quality assurance could improve by ironing out security vulnerabilities before releasing upgrades."

"ADC from Citrix has added functionalities from other products and the usability is very difficult for someone who is used to a simpler user interface, it's a little bit of a mess to use."

"Technical support could be improved."

More NetScaler cons

Pricing and Cost Advice

"The price of A10 Networks Thunder ADC depends on capacity and the customer's requirement. They have several offerings. They have different price models and options to choose from. Additionally, you need to subscribe to support for the hardware appliances."

"The pricing is a third of the price of the F5 competition."

"The price is good they are very comparative."

"One of the main reasons for switching away from Cisco was the licensing model. A10 gives you global server load balancing for free, while Cisco charged a significant licensing fee for that."

"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."

"We previously had F5 and switched because of costs."

"The pricing is fine, considering the features they are providing. If you are an individual user, they'll price the product differently compared to how they price the product that is sold to an organization."

"You get a lot more for your dollar with A10."

More A10 Networks Thunder ADC pricing and cost advice

"This product is more expensive than some of the competitors."

"You get the value for your money. There aren't any hidden fees."

"For partners, NetScaler is not as expensive price-wise versus F5."

"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."

"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."

"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."

"The client pays for the Citrix NetScaler license annually."

"The tool is cheap."

More NetScaler pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Application Delivery Controllers (ADC) solutions are best for your needs.

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Top Industries

By visitors reading reviews

Computer Software Company

21%

Financial Services Firm

12%

University

Government

Educational Organization

16%

Computer Software Company

15%

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?

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 ...

F5 BIG-IP Local Traffic Manager (LTM) vs A10 Networks Thunder ADC

Comparisons

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Compared 16% of the time

Radware Alteon vs A10 Networks Thunder ADC

Compared 10% of the time

Kemp LoadMaster vs A10 Networks Thunder ADC

Compared 7% of the time

NGINX Plus vs A10 Networks Thunder ADC

Compared 7% of the time

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Compared 12% 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 9% of the time

Loadbalancer.org vs NetScaler

Compared 4% of the time

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Product Reports

Download A10 Networks Thunder ADC product report

A10 Networks Thunder ADC

March 2025

Download NetScaler product report

February 2025

Also Known As

Thunder ADC, AX Series

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

Overview

A10 Networks Thunder ADC is a dynamic application delivery controller and advanced load balancer. Thunder ADC is a value-added solution provided by A10 Networks specializing in robust, trusted, scalable application services for cloud, hybrid, edge cloud, and on-premise environments focused on improving business processes and keeping infrastructures safe. The solution consistently provides server availability, improves content delivery, and protects at-risk applications. A10 Networks Thunder ADC easily controls hybrid and multi-cloud deployments using a Polynimbus strategy to minimize difficulties and costs for IT processes, facilitating overall improved business results.

A10 Networks Thunder ADC is effective for small to medium businesses (SMBs) to large enterprises. Service providers and cloud operators are all using A10 Network ADC to manage their large and fast-growing group of business-critical applications.

A10 Networks Thunder ADC supplies L4-7 load balancing with numerous layers of security using DNS and web app firewalls, comprehensive support for advanced encryption, single sign-on (SSO) authentication, and high-performance Perfect Forward Secrecy and Error Correction Code (PFS/ECC). Thunder ADC is designed upon A10 Networks Advanced Core Operating System (ACOS®) platform to provide consistent, efficient application performance and trusted security for any environment.

A10 Networks Thunder ADC Benefits

Consistently accessible: A10 Networks Thunder ADC employs numerous load balancing protocols to evenly distribute workloads to all servers and works to ensure constant application functionality. User requests are monitored to ensure loads are directed to the appropriate server so that there is always a proper response delivery to content. This process ensures the applications are consistently available.
Global Server Load Balancing (GSLB): To ensure business processes are fully optimized at all times, A10 Networks Thunder ADC employs a dynamic Global Server Load Balancing (GSLB) process to augment server load balancing capabilities throughout global data centers for high availability and improved user experience and application tolerance.
Fast content delivery: A10 Networks Thunder ADC conquers the general WAN latencies, chatty policies, and redundant software programs to ensure quick and responsive service. Employees receive a fast, excellent end-user experience while the organization's business leaders get exceeded SLA mandates and increased productivity with teams working remotely and a step up on the competition.

A10 Networks Thunder ADC Features

Detailed Analytics: When deployed with A10 Networks Harmony Controller, Thunder ADC delivers a large selection of detailed aggregate and per-request reports in real time. The reports include popular URLs, error and health indicators, latencies, and end-to-end response times. The data is further dissected to deliver per-app reporting, availability alerts, and performance.
API Coverage: Thunder ADC utilizes A10 Networks REST-based aXAPIs to structure all features with 100 percent API coverage. The resulting interface is then used to seamlessly integrate custom or third-party management solutions, such as VMware or other SDN platforms, OpenStack, Microsoft SCVMM, or other cloud orchestration systems. There are also software plug-ins available for private clouds utilizing VMware’s vRealize Orchestrator.
Comprehensive Management Controls: Thunder ADC is fully supported by A10 Networks Harmony Controller and can be deployed in software or as a software-as-a-service (SaaS). This controller functions as a native management platform that organizes and distributes application-centric service protocols and configuration data to numerous Thunder appliances and device cluster infrastructures throughout numerous multi-cloud environments. Users can instantly identify, audit and track every appliance using critical operational metrics, such as CPU, disk usage, device partitions, and end users. The A10 Networks Harmony Controller will also complete configuration backups and restore operations, and will schedule regular software upgrades.

A10 Networks

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.

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