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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:
 

ROI

Sentiment score
7.2
A10 Networks Thunder ADC enhances efficiency, offers cost savings, immediate ROI for some, and optimizes processes through task delegation.
Sentiment score
5.0
Fortinet FortiADC offers reliable web traffic management with strong support, but users find WAF functionality could improve usability.
We do see a return on investment and cost reductions after the implementation of A10 Networks Thunder ADC.
Head Of Technical And Network Security at Connex Information Technologies
The alert system is efficient, sending alerts within a fraction of a second if any power issues arise.
Senior Network Engineer at SP SYSNET PTE. LTD.
 

Customer Service

Sentiment score
7.4
A10 Networks Thunder ADC tech support is praised for efficiency but may experience delays and limited staff for urgent issues.
Sentiment score
6.2
Fortinet FortiADC's support experiences vary, with praise for professionalism but issues with response times and license-related impacts.
Their tech support is very responsible, and their response time is very low, providing superb support.
PM at Connex Information Technologies
The support we receive from the team is quite excellent.
Head Of Technical And Network Security at Connex Information Technologies
The support team is knowledgeable and efficiently assists with automation and configuration problems.
Security Network Architect at Inmac
Fortinet technical support is very good, and they provide us with better support.
Team Lead at Adapt Information Technologies (Pvt) Ltd
On a scale from one to ten, the support deserves an eight.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
 

Scalability Issues

Sentiment score
6.6
A10 Networks Thunder ADC efficiently scales, supports extensive applications, and seamlessly manages cloud transitions without significant performance issues.
Sentiment score
7.4
Fortinet FortiADC is scalable with virtual, cloud, and hardware models, but accurate initial sizing is crucial for expansion.
FortiGSLB cloud integrations provide maximum service availability and some flexible licensing options.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
It is scalable for some versions, however, as components reach their end of support, upgrades are necessary to maintain scalability.
Security Network Architect at Inmac
 

Stability Issues

Sentiment score
8.2
A10 Networks Thunder ADC is reliable, handling high loads efficiently, with minimal downtime and user-reported satisfaction.
Sentiment score
8.2
Fortinet FortiADC is highly stable and reliable, with responsive support, despite minor bugs occasionally introduced by firmware updates.
In some of our deployments of A10 Networks Thunder ADC, we have employed DDoS and other security features, and for the past few years, we haven't experienced any major incidents.
Head Of Technical And Network Security at Connex Information Technologies
The load balancing happened without any error.
Team Lead at Adapt Information Technologies (Pvt) Ltd
Overall, it has been good; in the past it was very good, and now it is still performing well.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
The support system is reliable when issues like automation or configuration arise.
Security Network Architect at Inmac
 

Room For Improvement

A10 Networks Thunder ADC requires improvements in UI, cloud support, automation, pricing, diagnostics, logging, and security features.
Fortinet FortiADC users seek better support, documentation, and features, including load-balancing, security, interface, and resource optimization improvements.
In the vThunder series of A10 Networks Thunder ADC, they have a perpetual license model and a subscription model, but in the Thunder series, the physical appliance does not have a perpetual license model, mainly operating on the subscription model.
PM at Connex Information Technologies
In future updates, I would like to see better speed in the features of A10 Networks Thunder ADC.
Head Of Technical And Network Security at Connex Information Technologies
Fortinet has been a pioneer for enterprise solutions, such as firewalls, SASE, ZTNA, and SD-WAN solutions, and they are in a leader quadrant.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
The limitation of managing all components and the differing versions pose challenges.
Security Network Architect at Inmac
The advanced analytics part was not requested from us. The only thing customers expected was load balancing.
Team Lead at Adapt Information Technologies (Pvt) Ltd
 

Setup Cost

Enterprise buyers find A10 Networks Thunder ADC cost-effective with competitive pricing, offering savings despite higher optional feature costs.
Fortinet FortiADC offers competitive, predictable pricing with flexible licensing options, appealing to both small businesses and large enterprises.
I estimate that I can save around 20 to 30 percent of my budget with A10 Networks Thunder ADC.
Head Of Technical And Network Security at Connex Information Technologies
This solution is quite expensive compared to Kemp.
Senior Network Engineer at SP SYSNET PTE. LTD.
 

Valuable Features

A10 Networks Thunder ADC provides flexible traffic management, advanced security features, and enhances performance with cost-effective, all-inclusive licensing.
Fortinet FortiADC offers features like SSL offloading and load balancing, valued for simplicity, scalability, affordability, and integration.
Application load balancing in A10 Networks Thunder ADC plays a crucial role in improving application reliability during peak periods.
PM at Connex Information Technologies
I would assess A10 Networks Thunder ADC's load balancing for improving application reliability during peak periods at around 9 out of 10, as GSLB is far better, and we are very satisfied with it.
Head Of Technical And Network Security at Connex Information Technologies
The implementation process is straightforward, and cluster implementation is also very easy.
Team Lead at Adapt Information Technologies (Pvt) Ltd
I use server load balancing and employ layer seven features, which provide more granular traffic shaping and detailed logs.
Senior Network Engineer at SP SYSNET PTE. LTD.
When integrated with FortiAnalyzer, it has much more significance.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
 

Categories and Ranking

A10 Networks Thunder ADC
Ranking in Application Delivery Controllers (ADC)
11th
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
24
Ranking in other categories
No ranking in other categories
Fortinet FortiADC
Ranking in Application Delivery Controllers (ADC)
5th
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
25
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Application Delivery Controllers (ADC) category, the mindshare of A10 Networks Thunder ADC is 5.4%, up from 5.0% compared to the previous year. The mindshare of Fortinet FortiADC is 9.7%, down from 9.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Delivery Controllers (ADC) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiADC9.7%
A10 Networks Thunder ADC5.4%
Other84.9%
Application Delivery Controllers (ADC)
 

Featured Reviews

NC
Head Of Technical And Network Security at Connex Information Technologies
Global load balancing has improved reliability and currently reduces latency across multi-cloud
I have experience with AWS, and I also have experience with both AWS and Azure, and sometimes GCP as well. We utilize multi-cloud support with A10 Networks Thunder ADC. We have customers utilizing A10 Networks Thunder ADC in the public cloud as well. I didn't technically involve myself with analytics in A10 Networks Thunder ADC because I haven't been involved in that part in the past few years. According to my team, the analytics tools are quite prominent, so there are no issues there. We have a distributorship with A10 Networks and are considered a partner. I would rate this review 9 out of 10.
GANESAN K - PeerSpot reviewer
Senior Technical Engineer at Safezone Secure Solutions Private Limited
Has supported load balancing for medical applications and could benefit from more custom configuration options
Some customers need custom management for handling their applications across the servers. Instead of having a predefined solution, if we had space for custom-based algorithms to load balance the traffic, it would be better. We have faced such cases with A10, where we can leverage many custom scripts and do much more. Even though A10 primarily focuses on SMBs, they have also ventured into the enterprise market. Fortinet has been a pioneer for enterprise solutions, such as firewalls, SASE, ZTNA, and SD-WAN solutions, and they are in a leader quadrant. Therefore, they should have more options. From a pricing perspective, it is expensive.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
8%
Government
8%
Financial Services Firm
8%
Computer Software Company
11%
Financial Services Firm
9%
Government
9%
Energy/Utilities Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise5
Large Enterprise11
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise4
Large Enterprise7
 

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 is your experience regarding pricing and costs for A10 Networks Thunder ADC?
I estimate that I can save around 20 to 30 percent of my budget with A10 Networks Thunder ADC, though it's not an exact figure.
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: March 2026.
884,656 professionals have used our research since 2012.