A10 Thunder TPS vs Fortinet FortiDDoS comparison

A10 Networks and Fortinet are both solutions in the Distributed Denial-of-Service (DDoS) Protection category. A10 Networks is ranked #16 with an average rating of 7.5, while Fortinet is ranked #12 with an average rating of 8.0. A10 Networks holds a 1.8% mindshare in DDOS, compared to Fortinet’s 2.3% mindshare. Additionally, 100% of A10 Networks users are willing to recommend the solution, compared to 90% of Fortinet users who would recommend it.

A10 Thunder TPS

Read 15 A10 Thunder TPS reviews

925 Views
925 Comparison Views

100% willing to recommend

Fortinet FortiDDoS

Read 15 Fortinet FortiDDoS reviews

1,461 Views
1,125 Comparison Views

90% willing to recommend

A10 Thunder TPS

Fortinet FortiDDoS

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 5, 2024

A10 Thunder TPS and Fortinet FortiDDoS are products in the DDoS protection space. A10 Thunder TPS has an advantage in pricing and customer support, while Fortinet FortiDDoS leads with advanced functionalities.

Features: A10 Thunder TPS provides integrated threat intelligence, comprehensive attack visibility, and programmable automated defense through RESTful API. Fortinet FortiDDoS offers behavior-based attack detection, seamless integration with existing infrastructures, and an emphasis on automated threat detection.

Room for Improvement: A10 Thunder TPS could improve its automated response features and expand its suite of integrations with third-party systems. Additional reporting capabilities and a more intuitive user interface could also be beneficial. Fortinet FortiDDoS might enhance its ease of configuration, decrease deployment complexity, and offer more flexible pricing models to cater to smaller businesses.

Ease of Deployment and Customer Service: A10 Thunder TPS allows for straightforward deployment and is praised for its superior customer service responsiveness. Fortinet FortiDDoS, although offering extensive support, requires a learning curve owing to its complex feature set, making it suitable for users ready to invest time in mastering its capabilities.

Pricing and ROI: A10 Thunder TPS is positioned with competitive setup costs and cost-effective solutions that deliver a positive ROI. Fortinet FortiDDoS, while more expensive, offers comprehensive features that provide a favorable ROI, particularly for businesses seeking to maximize security protocols over cost considerations.

To learn more, read our detailed A10 Thunder TPS vs. Fortinet FortiDDoS Report (Updated: December 2025).

Buyer's Guide

A10 Thunder TPS vs. Fortinet FortiDDoS

December 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 Thunder TPS

Ranking in Distributed Denial-of-Service (DDoS) Protection

16th

Average Rating

8.6

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Fortinet FortiDDoS

Ranking in Distributed Denial-of-Service (DDoS) Protection

12th

Average Rating

8.2

Reviews Sentiment

6.9

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of February 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of A10 Thunder TPS is 1.8%, up from 1.7% compared to the previous year. The mindshare of Fortinet FortiDDoS is 2.3%, down from 2.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Distributed Denial-of-Service (DDoS) Protection Market Share Distribution
Product	Market Share (%)
Fortinet FortiDDoS	2.3%
A10 Thunder TPS	1.8%
Other	95.9%

Distributed Denial-of-Service (DDoS) Protection

Featured Reviews

reviewer1126782

Information Technology Security Engineer at a tech services company with 11-50 employees

Management console adds value and technical support delivers timely solutions

I had issues with the user interface because, when putting settings up, the system asked me for strange things like virtual local networks that I didn't create. For example, I set an NTP server, and after some clicks, a message appeared stating 'setup is incorrect'. It asked for a VLAN even though no VLANs were created. We had to find workarounds for issues like A10 blocking necessary traffic, sometimes leading to decreased security, because it was the simplest way to deal with them. This was a real issue. A more flexible policy for demo licenses would also be helpful.

Read full review

Marcos AntonioOliveira

IT Analyst at Evapco, Inc.

Reliable protection and smooth setup enhance company security

Currently, I have two firewalls, with one located in Sorocaba, model 90D, and the other in São Paulo, model 30D. They are connected by VPN. I use the firewalls for VPN and final protection for my company, and my equipment is maintained by an internet company called Multiprox The equipment works…

Read full review

Quotes from Members

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

Pros

"The GUI is very use-friendly. You can configure it through CLI or GUI, they give you an option to choose. It's a good solution in terms of the appliance itself. It's very light compared to other brands that offer DDoS solutions."

"The response time to an attack is instant. We've used some outsourced solutions in the past, out in the cloud, that weren't so quick. But it's all within our control now. We control how fast it mitigates."

"The solution's support is one of the coolest things about the product. I"

"We can keep track of all the customer's requirements. We can forecast our trails and we can forecast our overall financial things."

"Based on previous equipment that we had, it's amazing that this device can do what it can do in a 1U form factor. The devices that we have right now have never gone over capacity and we've actually mitigated some pretty large attacks."

"We selected the solution because of its programmable automated defense using RESTful API. We didn't want to connect to the box. We wanted to be able to do some automation. We wanted to have our own portal because we wanted to connect our customers to our own UI using the A10 API. It has been good and exactly what we need."

"The most valuable feature of A10 Thunder TPS is load balancing."

"The solution has reduced the amount of manual intervention required during an attack. We have the inline solution and when it comes to the customers that we have on it, it has saved us some troubleshooting time."

More A10 Thunder TPS pros

"The equipment works very well, and I have not encountered any issues with it."

"The protection resources and the support are valuable features of the solution."

"This solution can protect Layer 3, Layer 4 and Layer 7 attacks of applications for us."

"It allows me to see all the traffic on my network."

"The most valuable feature is the cloud DDoS scrubbing capability."

"The product allows the users to adjust the thresholds."

"The product's initial setup phase was really easy."

"Among its key features: Detects and mitigates DDoS attacks at L3 to L7; negligible to zero false-positives; Generates and sends reports without the need for an expensive third-party solution."

More Fortinet FortiDDoS pros

Cons

"We have had some issues with implementation. So, it is the only area that needs improvement."

"The solution needs improvement in terms of fail-open."

"The upgrade process for the boxes is not efficient. We have to go through the A10 aGalaxy where we have issues, like timeouts. They told me it was fixed in the latest version, but I tried to do it on the Portal and it is not working all the time."

"The solution is a little expensive."

"I rate Thunder TPS seven out of 10 for scalability."

"I had issues with the user interface because, when putting settings up, the system asked me for strange things like virtual local networks that I didn't create."

"The problem here is when you buy another box from A10, they want to put Thunder TPS to run, and it works okay, after which we cannot block it for another solution to be used, which is a problem for me where improvements are needed."

"We currently do not use the solution's machine-learning-powered Zero-day Automated Protection because of an issue with it... We also use the aGalaxy platform, which is a management platform for the TPS devices. The issue is that some TPS features were added at the TPS level but weren't carried over to aGalaxy, and we manage all of our devices through aGalaxy. So we can't actually use some of the new features that are available on the TPS because that functionality doesn't exist in aGalaxy. That is one of my biggest complaints."

More A10 Thunder TPS cons

"The tool needs to focus more on the area of application traffic management, where it currently has some shortcomings."

"The solution can be a little more user-friendly and it can be more affordable."

"I find that there have been issues in the past year with the solution hanging. It freezes often."

"The main improvement would be to change the firewall model, however, currently, everything is fixed and working well."

"The challenge lies within the customer environment, particularly in Brazil, where companies have stringent security requirements for implementing solutions."

"I would like to see analytics, big data."

"There aren't really any aspects of the solution we are unhappy with. It's been a positive experience overall."

"The primary area for improvement is the on-premises capacity limit, currently fixed at 10 GB."

More Fortinet FortiDDoS cons

Pricing and Cost Advice

"We had a customer who was down for six hours and the loss of revenue for him was three times the price he was paying for us per year. The customer just said, "I don't care about paying you because on only one attack I saved money. It's three times better than losing money.""

"Pricing was much higher with Arbor (APS) for the same type of solution."

"We may need to pay fifty percent more if we purchase other solutions. For the payments made to A10 Thunder TPS, we have received three-year support."

"Pricing is very reasonable."

"We did a price survey, and compared to other solutions, A10 Thunder TPS wasn't cheap."

"The financials are always a challenge with this type of technology. That's not really a product-functionality thing but it's the area where we push A10 the most."

"The tool is expensive. If one is low price and ten is expensive, I rate the tool's price as a ten."

"The product’s pricing needs improvement."

"It's quite pricey."

"The solution is reasonably priced."

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Top Industries

By visitors reading reviews

Comms Service Provider

39%

Financial Services Firm

Computer Software Company

Manufacturing Company

12%

Comms Service Provider

10%

Financial Services Firm

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	4
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	10
Large Enterprise	6

Questions from the Community

What is your experience regarding pricing and costs for A10 Thunder TPS?

I have not seen specific prices, like $10,000 or $20,000. A frustrating aspect is the lack of demo versions. The vendor insists on commercial licenses despite requests for demo licenses. The global...

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What needs improvement with A10 Thunder TPS?

See all answers

What is your primary use case for A10 Thunder TPS?

Currently, I have a test setup. A10 Thunder TPS ( /products/a10-thunder-tps-reviews ) works in a chain with a Check Point firewall and a Juniper MX router. Recently, we had a presentation from a ve...

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Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?

Arbor would be the best bid, apart from Arbor, Palo Alto and Fortinet have good solutions. As this is an ISP, I would prefer Arbor.

See all answers

What is your experience regarding pricing and costs for Fortinet FortiDDoS?

Fortinet FortiDDoS offers lower costs compared to other solutions. The licensing costs are annually renewed.

See all answers

What needs improvement with Fortinet FortiDDoS?

There is a need for more features that protect personal information, especially given the PDP issue in Indonesia.

See all answers

Comparisons

Arbor DDoS vs A10 Thunder TPS

Compared 32% of the time

Radware DDoS vs A10 Thunder TPS

Compared 13% of the time

F5 BIG-IP Advanced Firewall Manager (AFM) vs A10 Thunder TPS

Compared 10% of the time

Cloudflare vs A10 Thunder TPS

Compared 9% of the time

Corero vs A10 Thunder TPS

Compared 6% of the time

More A10 Thunder TPS Competitors

Arbor DDoS vs Fortinet FortiDDoS

Compared 20% of the time

Radware DDoS vs Fortinet FortiDDoS

Compared 10% of the time

VMware NSX vs Fortinet FortiDDoS

Compared 8% of the time

Cloudflare vs Fortinet FortiDDoS

Compared 8% of the time

Corero vs Fortinet FortiDDoS

Compared 4% of the time

More Fortinet FortiDDoS Competitors

Product Reports

Buyer's Guide

A10 Thunder TPS

January 2026

Download A10 Thunder TPS product report

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

January 2026

Download Fortinet FortiDDoS product report

Also Known As

No data available

Fortinet DDoS, FortiDDos

Overview

The Thunder TPS is a family of high-performance DDoS defense solutions that detect and mitigate multi-vector DDoS attacks. Unlike traditional DDoS defenses that leave a wake of collateral damage against users, Thunder TPS applies a source-based defense-in-depth mitigation pipeline. This multimodal defense that includes actionable DDoS weapons intelligence, operator definable adaptive policies, and machine learning-powered Zero-Day Automated Protection (ZAP) blocks attackers while protecting real users.

The Thunder TPS is uniquely suited for communication service providers, online gaming, and enterprise network operators who protect large networks and need compact solutions with faster response from a fully automated, zero-touch defense during an attack.

A10 Networks

Distributed Denial of Service (DDoS) attacks are ever-evolving and use a variety of technologies. To successfully combat these attacks, you need a dynamic, multi-layered security solution. FortiDDoS protects from both known and zero day attacks with very low latency. It’s easy to deploy and manage, and includes comprehensive reporting and analysis tools.

Fortinet

Sample Customers

DDoS defense solution trusted for more than 200 service providers, online gaming, and enterprises including; Bungie, Comcast, KDDI Corporation, Leaseweb, Microsoft Azure, NTT Docomo, Softbank, Turkcell Superonline, Verizon and more.

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data

Buyer's Guide

A10 Thunder TPS vs. Fortinet FortiDDoS

December 2025

Free Report: A10 Thunder TPS vs. Fortinet FortiDDoS

Find out what your peers are saying about A10 Thunder TPS vs. Fortinet FortiDDoS and other solutions. Updated: December 2025.

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