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A10 Networks Thunder ADC vs Fortinet FortiADC comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 17, 2024

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
Fortinet FortiADC
Ranking in Application Delivery Controllers (ADC)
6th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
24
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Application Delivery Controllers (ADC) category, the mindshare of A10 Networks Thunder ADC is 5.0%, up from 4.8% compared to the previous year. The mindshare of Fortinet FortiADC is 9.9%, up from 8.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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.
OusaidAbaz - PeerSpot reviewer
Integrates load balancing efficiently within existing technology environments
FortiADC provides load-balancing capabilities needed for integration with other Fortinet platforms. It allows for the creation of virtual IPs and applying various algorithms for traffic management. Although it offers fewer algorithms than competing platforms like F5, its capability to manage load balancing makes it valuable. The security features depend on the environment, relying on firewalls like FortiGate.

Quotes from Members

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

Pros

"The Deterministic CGNAT feature is valuable for us."
"Compared to F5, which I used about six years ago, the A10 is much easier when routing. You don't have to use the wildcard bits to route it between the different segments. It's much less troublesome to configure."
"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."
"The SLB and GSLB load balancing are the most valuable features. They meet our need to do server-side load balancing and global site load balancing so we can distribute traffic, not only intra-data center, but inter-data center."
"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."
"A10 explained why the latency dropped significantly on a site that we have."
"The DNS application firewall and load balancing are very valuable."
"The solution is flexible."
"TSL and SSL offloading are both very good features."
"We can do patches offline without causing customers outages. The web application firewall features, especially those related to the OWASP Top Ten, provide automated protections. This allows more flexibility in patching the backend applications. Additionally, it offers visibility into the requests being made to the applications, and you can't protect what you can't see."
"Simple to use and easy to integrate."
"The most valuable feature is its simplicity."
"I use load balancing technology like Round Robin or low weight to maintain session-based connections. This ensures that clients can connect to their applications without interruption."
"Key features include SSL Offloading, VM availability, and L7 load balancing."
"Content caching and content compression are good features."
"I am impressed with the product's load-balancing feature."
 

Cons

"They need to make the user interface (GUI) a bit more usable and intuitive. Some features can be a little difficult to find at times. Sometimes, the workflow in the GUI doesn't match the workflow of an actual workflow. E.g., if I want to create a load balancer application, sometimes you've got to do things a bit out of order in the GUI in order to make it work right."
"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."
"A graphical dashboard for analyzing performance is needed."
"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."
"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."
"The solution should add automation features in the next release."
"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."
"The user interface is not as pretty as it could be."
"The solution’s pricing could be improved."
"I think it would be helpful if Fortinet put more video examples on their cookbook site."
"The product's stability for VMs could be better."
"Fortinet has some drawbacks, and it can be a bit challenging to scale."
"I will queue all the details clearly on the ticket, including the diagram, log files, and everything else. Once a case is assigned, they ask the same questions again without checking the submitted details."
"The L7 Persistent load-balancing algorithm has not worked for me after having tested it many times with my customer's in-house application. I'd like to suggest that the company make sure that all load-balancing algorithms work properly with most applications, even those that are in-house apps."
"There is a mismatch between the number of features they are offering and the device capacity on how much it can handle."
"The solution's WAF needs an upgrade because it is not as good as FortiWeb, VMware, F5, or Imperva."
 

Pricing and Cost Advice

"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."
"It is $7000 per unit for the support annually."
"You get a lot more for your dollar with A10."
"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 of the maintenance support is too expensive."
"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."
"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."
"The product has affordable pricing."
"Compared to F5, FortiADC pricing is better."
"Our basic license excludes features such as antivirus and IDS. Due to license limitations, some functionalities are not configured."
"I rate Fortinet FortiADC's pricing one out of ten. It is fixed."
"I believe the price is good. It's fair. There are no extra costs."
"The solution could be more cost-effective."
"The solution is less expensive than F5 or Imperva and is the most reasonably priced option available."
"The solution's pricing is an issue and should be improved."
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Top Industries

By visitors reading reviews
Computer Software Company
19%
Financial Services Firm
13%
University
7%
Government
6%
Computer Software Company
17%
Financial Services Firm
9%
Government
8%
Educational Organization
6%
 

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.
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 have to look for other ADC's like F5, Imperva, Radware, Fortinet, etc.
Do you recommend Fortinet FortiADC?
I recommend Fortinet FortiADC. My experience with Fortinet has been very positive. Our company has been using it for around five years. We mainly use FortiADC for the load balancing of application ...
What do you like most about Fortinet FortiADC?
The user interface is very easy and integrates with Sandbox easily.
 

Also Known As

Thunder ADC, AX Series
FortiADC Application Delivery Controller, FortiADC
 

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
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Find out what your peers are saying about A10 Networks Thunder ADC vs. Fortinet FortiADC and other solutions. Updated: July 2025.
861,524 professionals have used our research since 2012.