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A10 Thunder TPS vs Corero comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 5, 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

Cloudflare
Sponsored
Ranking in Distributed Denial-of-Service (DDoS) Protection
2nd
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
79
Ranking in other categories
CDN (1st), WAN Optimization (4th), Managed DNS (1st), Domain Name System (DNS) Security (5th), Cloud Security Posture Management (CSPM) (17th)
A10 Thunder TPS
Ranking in Distributed Denial-of-Service (DDoS) Protection
15th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
15
Ranking in other categories
No ranking in other categories
Corero
Ranking in Distributed Denial-of-Service (DDoS) Protection
22nd
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
6
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 13.2%, down from 19.1% compared to the previous year. The mindshare of A10 Thunder TPS is 1.5%, down from 1.9% compared to the previous year. The mindshare of Corero is 2.6%, up from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Cloudflare13.2%
A10 Thunder TPS1.5%
Corero2.6%
Other82.7%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

M.A. Faisal - PeerSpot reviewer
General Manager at bKash Limited
Advanced protection has secured critical web workloads and provides clear traffic visibility
From a security perspective, there remains a security loophole, as some browsers in the market can bypass the Turnstile solution, which requires approximately 40 seconds to do so. From a performance perspective, this is acceptable. We also tried Google reCAPTCHA, and that can also be bypassed. From a security perspective, I would say neither solution is completely secured. Regarding uptime, we have faced a couple of incidents due to Cloudflare in recent years, so I cannot say we receive 100% uptime for our region. We sometimes face challenges, including downtime and other issues. As a result, we are not receiving 100% uptime from Cloudflare's solution. Since most of our customers are in this region, we need alternatives. We need something more competitive than Cloudflare. Unfortunately, in Bangladesh, Cloudflare has three points of presence already, and we cannot find any other solution provider in Bangladesh as an alternative, which presents another challenge. Competitor solutions have more attack signatures, which ensure better security compared to Cloudflare's predefined configurations. Customers do not have options to modify any configuration parameters in Cloudflare, whereas other competitor solutions, such as F5 Distributed Cloud, allow customers to tune configurations according to their requirements. Cloudflare could improve in this area. Additionally, regarding visibility, Cloudflare has static visibility, but they could adopt dynamic graph features for their customers.
reviewer1126782 - PeerSpot reviewer
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.
HP
Presale Manager at HTech Vietnam
Effective network and DDoS protection with suitable pricing
I use Corero for network DDoS protection projects. It is particularly effective in providing protection against network DDoS attacks I find Corero to be good, especially in a wide area. It does not have application filtering or application DDoS prevention, but for network DDoS projects, it is…

Quotes from Members

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

Pros

"It's a reasonably priced solution that meets customers' needs and it's not too difficult to deploy."
"Smaller businesses have seen great ROI due to the low investment and strong performance."
"The solution is stable, and the DNS servers are simple to use."
"Easier http to https redirect using page rules"
"Cloudflare improves performance on my websites and is a great partner for cloud infrastructure for anyone who wants to use the security service and other features."
"The setup and configuration is also easy to perform and their support is excellent."
"I like Cloudflare's application gateway and DDoS protection."
"Cloudflare DNS is widely used, and it's good for websites. If we use Cloudflare DNS and update one record, it updates in their office instantly."
"The solution's support is one of the coolest things about the product. I"
"The primary benefit that we see from their systems is that their filtering technology has the ability to detect and drop the malicious traffic from the legitimate traffic with a high success rate. That, in combination with the very small effort needed to manage their systems, are the two most important benefits to us."
"The product's initial setup phase is very simple."
"Due to the availability and power of these devices, we've been able to ramp off our upstream cloud-scrubbing provider and handle all attacks on our own."
"The most valuable feature of A10 Thunder TPS is load balancing."
"Thunder TPS has automated mitigation and fully managed support in case the device cannot handle the attack. They have engineers available to respond."
"It is a scalable solution."
"The solution has been rock solid for us; we haven't had any issues, we've had numerous attacks, and it's worked perfectly."
"I like the fact that the product provides a hybrid solution."
"It is an agnostic and transparent inline platform, which means that the maximum visibility of the symmetric and asymmetric traffic is available, even allowing bidirectional detection of the attack."
"The most important aspect, in general, is that the price is suitable for most clients."
"The DDoS protection features are valuable."
"This is a hybrid solution."
"The most valuable feature of Corero is its ability to handle smaller attacks in terms of the amount of volume and time. You can handle almost 100 perfect of the attacks locally."
"It is a very efficient and robust appliance."
"It is a good solution, its vendor support is the most valuable, and it is simple and works well if you have Juniper MX routers."
 

Cons

"Perhaps I would ask that they improve the Free plan and allow us to use it with any TLD (certain ones are not allowed)."
"An integrated SSO feature would be useful for Cloudflare DNS."
"It should confirm audit findings of the assigned area with auditees to ensure that the audit conclusions are based on an accurate understanding of the issues."
"One area of improvement is in the Access Rules. Hypothetically, if we wanted to block or challenge traffic outside of the United States, the only way to currently do that (as far as I know) is to enter every single country outside of the United States. That could be a labor intensive job. A solution could be to enable users to create a rule where traffic is only allowed within a certain country."
"Eventually, things go sideways and require fixes when it would have been easier to prevent the issue initially."
"For the free and Pro plans, Cloudflare could use a simple bot to provide information to users. This would improve support, especially for less advanced users who utilize the free components."
"Sometimes their more advanced caching tools can cause higher first-byte times and problems with JavaScript."
"The solution could use more analytics on the backend to give us more insights into everything. More reports would be helpful."
"I would like for them to develop an advanced reporting feature."
"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."
"Its documentation could be better."
"The solution needs improvement in terms of fail-open."
"They have a cloud scrubbing feature that redirects the traffic if the on-prem appliance can't accommodate a large amount of traffic but it's not available where we are."
"I rate Thunder TPS seven out of 10 for scalability."
"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."
"If there's one aspect of A10 that needs improvement it would be the training."
"The product must provide more Layer 7 capabilities."
"I'd like to see an increase in Corero's international team. Our clients are generally companies with an international presence and Corero is not represented in all the countries where our clients have presence."
"Juniper is known in our country, but it is not very popular."
"Lacks international presence."
"It could use support in Spanish."
"Juniper is known in our country, but it is not very popular. There is also not enough information about Corero. Our enterprise and financial sectors don't know about this solution. They need to provide more information and do more marketing for this solution in our country."
"Corero needs to improve its application DDoS prevention capabilities and user behavior detection features."
"The approach taken by Corero is to partner with other organizations in order to address volumetric attacks that cannot be handled by the hardware installed in the infrastructure. Corero does not have a solution for these attacks, so they are looking for partners to help them manage them. This approach is supplemented by local hardware, but the main focus is on the partnerships. It would be beneficial to have a more complete solution."
 

Pricing and Cost Advice

"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."
"We are using the free version."
"The product's pricing is minimal compared to other products."
"I believe their performance has improved, but I'd like to refrain from discussing the pricing aspect related to the cloud. The pricing, in my opinion, could be simplified, and I think they should consider reevaluating the pricing for support, as it can be quite high. At times, this cost can make it challenging to choose CARFAGuard or opt for the support."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"Cloudflare's pricing is not much higher and is good for middle-level organizations."
"The tool is a premium product, so it is very expensive."
"The solution has many features but there are ones that you need to pay for. Sometimes you have to find out which is available for free and which you have to pay for."
"Pricing is very reasonable."
"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."
"Pricing was much higher with Arbor (APS) for the same type of solution."
"We did a price survey, and compared to other solutions, A10 Thunder TPS wasn't cheap."
"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."
"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.""
"The tool is expensive. If one is low price and ten is expensive, I rate the tool's price as a ten."
"Its price is normal."
"The price of Corero is affordable."
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Top Industries

By visitors reading reviews
Financial Services Firm
10%
Comms Service Provider
10%
Computer Software Company
8%
Manufacturing Company
8%
Comms Service Provider
33%
Financial Services Firm
11%
Construction Company
8%
Computer Software Company
6%
Comms Service Provider
15%
Computer Software Company
15%
University
11%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise11
Large Enterprise26
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise4
Large Enterprise6
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise1
 

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?
Cloudflare. We are moving from Akamai prolexic to Cloudflare. Cloudflare anycast network outperforms Akamai static GR...
Which would you choose - Cloudflare DNS or Quad9?
Cloudflare DNS is a very fast, very reliable public DNS resolver. It is an enterprise-grade authoritative DNS service...
What is your experience regarding pricing and costs for Cloudflare DNS?
The pricing, setup cost, and licensing for Cloudflare are a bit on the higher side overall.
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 vend...
What needs improvement with A10 Thunder TPS?
I had issues with the user interface because, when putting settings up, the system asked me for strange things like v...
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 P...
What needs improvement with Corero?
Corero needs to improve its application DDoS prevention capabilities and user behavior detection features.
What is your primary use case for Corero?
I use Corero for network DDoS protection projects. It is particularly effective in providing protection against netwo...
What is your experience regarding pricing and costs for Corero?
The pricing of Corero is reasonable and suitable for most clients. However, I am not sure about the approximate licen...
 

Also Known As

Cloudflare DNS
No data available
No data available
 

Overview

 

Sample Customers

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.
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.
Telesystem, Jagex, Hivelocity, Los Angeles Dedicated, Netrics hosting, Hyve, Zacks Investment Research, Dynamic Business Systems, G4BOX INC., GamersFirst, Fastmetrics, San Miguel County
Find out what your peers are saying about A10 Thunder TPS vs. Corero and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.