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: April 2025).

A10 Networks Thunder ADC vs. NetScaler

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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 (3rd), Web Application Firewall (WAF) (12th)

Mindshare comparison

As of April 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 14.8%, down from 15.6% 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

"We can control access based on the specific application. If other devices are attempting to directly access the servers, you can block them. Additionally, you can balance the load among servers to optimize performance. For example, utilizing caching can make the application run faster."

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

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

"Being a public entity and having a public website which is highly visible with a lot of traffic, we are a target for DDoS. Within the last year, we have had a couple of DDoS attacks which could have affected our web traffic and taken down certain parts of our website. This did not happen because the A10 was able to mitigate the attacks using rate limiting that can be configured for DDoS mitigation on the box."

"The Deterministic CGNAT feature is valuable for us."

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

"The solution is flexible."

More A10 Networks Thunder ADC pros

"The program is easy to install and to set up."

"It's very easy to configure."

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

"Most of the functions are user-friendly and great."

"We use the solution's IP Reputation and bot protection features."

"Global load balancing between data centers."

"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."

"Available on any device and can be accessed on a wide area network."

More NetScaler pros

Cons

"A10 Networks Thunder ADC could improve on the Application Delivery Controller. it's not a fully-fledged web application firewall solution. For example, application data and support need to improve."

"There is room for improvement in the upgrading process. Sometimes we have to contact A10 for verification of some stuff."

"There are competitors that have more features."

"In my opinion, they need to improve their cloud support. There is support for cloud, but not all functions are there, such as high-availability."

"The tool's load-balancing feature should improve."

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

"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."

"The user interface is what people complain about most of the time, particularly if they don't use it very often. Then they complain that it's a bit clunky."

More A10 Networks Thunder ADC cons

"The tool's pricing is a pain point since we have many cheaper alternatives."

"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."

"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."

"Some of our customers have questioned the security of this solution lately, wondering whether it is safe or not, so enhancements in this respect would be good."

"An area for improvement would be the difficulty in finding information about standard licensing costs over the internet. They should provide some reference prices on the net to be quickly referred to."

"The user interface could be more friendly. Some wizards and other documentation for administrators, as well as some use cases, helps us to understand the solution."

"The reporting is not so good. They don't have an application to connect the logs."

"If one device or switch fails, the failover to another device is not seamless which is painful."

More NetScaler cons

Pricing and Cost Advice

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

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

"We did try out the solution’s Harmony analytics and visibility controller for its one-year trial. Due to the cost, we chose not to keep it onsite."

"The price is good they are very comparative."

"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."

"We just pay for support in addition to our licensing."

"Pricing is one of the features of the product that influence customers to use the product."

"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."

More A10 Networks Thunder ADC pricing and cost advice

"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."

"You can do CapEx and then a yearly monthly fee, or you can do a subscription model, whether that's one month, month-to-month, or three-year subscription model."

"Our licensing fees including technical support are approximately $3,500 USD."

"Its price is comparable to others and affordable."

"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."

"Citrix ADM costs us approximately $5000 per month."

"When compared to other solutions, the cost is high."

"Citrix Web App and API Protection are in the middle when we talk about pricing and licensing"

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

19%

Financial Services Firm

14%

University

Government

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?

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 ...

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Compared 9% of the time

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Compared 8% of the time

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Compared 3% of the time

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Product Reports

A10 Networks Thunder ADC

Download A10 Networks Thunder ADC product report

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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

A10 Networks Thunder ADC vs. NetScaler