Corero vs Fortinet FortiDDoS comparison

Corero and Fortinet are both solutions in the Distributed Denial-of-Service (DDoS) Protection category. Corero is ranked #15 with an average rating of 7.0, while Fortinet is ranked #12 with an average rating of 8.0. Corero holds a 2.5% mindshare in DDOS, compared to Fortinet’s 2.4% mindshare. Additionally, 83% of Corero users are willing to recommend the solution, compared to 90% of Fortinet users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 5, 2024

Corero and Fortinet FortiDDoS compete in DDoS protection, with Fortinet FortiDDoS offering a superior feature set that justifies its higher cost.

Features: Corero provides real-time DDoS prevention, automatic threat mitigation, and a centralized management interface. Fortinet FortiDDoS offers layer 7 attack protection, packet inspection capabilities, and traffic profiling.

Room for Improvement: Corero could enhance its application filtering capabilities, expand its threat detection to cover more complex threats, and improve scalability for larger environments. Fortinet FortiDDoS might benefit from simplifying its deployment process, reducing false positives, and offering more intuitive setup procedures for less technical users.

Ease of Deployment and Customer Service: Corero simplifies deployment with easy integration and offers dedicated customer support. Fortinet FortiDDoS requires detailed documentation and significant setup efforts but provides comprehensive support.

Pricing and ROI: Corero is known for favorable initial costs and efficient cost-performance. Fortinet FortiDDoS, with higher setup costs, is perceived to offer strong long-term ROI due to its extensive features, making it ideal for extensive protection needs.

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

Buyer's Guide

Corero 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

Cloudflare

Mindshare comparison

As of January 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 16.7%, down from 18.0% compared to the previous year. The mindshare of Corero is 2.5%, down from 3.1% compared to the previous year. The mindshare of Fortinet FortiDDoS is 2.4%, down from 2.9% 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 (%)
Cloudflare	16.7%
Fortinet FortiDDoS	2.4%
Corero	2.5%
Other	78.4%

Distributed Denial-of-Service (DDoS) Protection

Featured Reviews

Herb Angle

Owner at Hga consulting

Has helped manage client domains with streamlined access control and threat visibility

I don't know what areas could be improved with Cloudflare WAF; Cloudflare is constantly improving and adding features to their feature set. They're doing a good job, and as far as DNS and support for any domains that I create or my clients create, it's mandatory for me to make sure that they have Cloudflare as their DNS provider. The Cloudflare load balancing capability hasn't really helped in enhancing my website's uptime and resiliency because we don't really get that much traffic; it's mostly remote users, and web hosting is done by a web hosting service. It doesn't pay to try to host your own website.

Read full review

Hoang Phuong

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…

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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…

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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

"It is a fast and secure DNS."

"The most valuable feature of Cloudflare is that it has a free version. They give us the free version with the anti-DDoS features and also the load balancing solution."

"The DDoS protection is the most valuable aspect of the solution."

"Cloudflare is a security SaaS provider that provides security and protects us from any application layer attack."

"When using services like Heroku, Cloudflare is very useful for CNAME flattening. I also use it for their end-to-end SSL with TLS authentication on nginx for securing servers."

"The solution automatically detects and responds to certain types of traffic based on geolocation."

"The most valuable feature of the solution is external DNS. It is also very secure. They have their own main server and once you configure it, the product takes care of everything. There are no issues in resolving IPs and low latency is also present."

"It is a fast and secure DNS."

More Cloudflare pros

"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."

"The DDoS protection features are valuable."

"The most important aspect, in general, is that the price is suitable for most clients."

"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."

"SmartWall devices occupy only one-fourth of the width of a rack unit, making them very easy to install."

"It is a good solution. Its vendor support is the most valuable. It is simple and works well if you have Juniper MX routers."

"This is a hybrid solution."

"The solution is very user-friendly and very easy to use."

"We have researched them all, and it's a good solution all around."

"The equipment works very well, and I have not encountered any issues with it. It is a good solution for my company."

"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."

"Packet inspection has been effective for mitigating DDoS attacks."

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

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

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

More Fortinet FortiDDoS pros

Cons

"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."

"It should have easier documentation for the configuration. It's very technical and people who aren't technical should also be able to do the configuration."

"The reporting can definitely be improved to offer a lot more explanation on something that may have happened or has actually happened."

"Support response time could be improved."

"The documentation could improve for Cloudflare DNS."

"Technical support is lacking."

"Cloudflare's console should be made more user-friendly."

"Cloudflare could offer a better view or maybe dashboards of the main resources used in the client."

More Cloudflare cons

"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."

"Lacks international presence."

"The product must provide more Layer 7 capabilities."

"It could use support in Spanish."

"Corero needs to improve its application DDoS prevention capabilities and user behavior detection features."

"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."

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

"All the thresholds that need to be configured should be included in the default so that user will not forget or misconfigure."

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

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

"The product’s pricing needs improvement."

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

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

"The web interface could be much better."

More Fortinet FortiDDoS cons

Pricing and Cost Advice

"I think the pricing is competitive. I think as far as licensing is concerned it's pretty straightforward because it's based on domain. It's just that sometimes domains could be tricky with some customers."

"For Cloudflare, I recommend it heavily for small businesses with revenue under a couple of million dollars. Onboarding is easy, and they even have a free plan. This makes it simple for businesses in the $100,000-$500,000 range to try it out and see its value, allowing them to scale up their infrastructure as needed."

"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."

"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."

"The tool is a premium product, so it is very expensive."

"A free version of the solution is available."

"So far I use free tier and happy with it. You can subscribe to business package if needed."

"That is one of the great features. I was able to access the majority of the features and services for free."

More Cloudflare pricing and cost advice

"Its price is normal."

"The price of Corero is affordable."

"The product’s pricing needs improvement."

"The solution is reasonably priced."

"It's quite pricey."

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Financial Services Firm

10%

Comms Service Provider

10%

Manufacturing Company

Computer Software Company

18%

Comms Service Provider

12%

University

Government

Manufacturing Company

12%

Comms Service Provider

Financial Services Firm

Computer Software Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	46
Midsize Enterprise	8
Large Enterprise	25

By reviewers
Company Size	Count
Small Business	4
Midsize Enterprise	2
Large Enterprise	1

By reviewers
Company Size	Count
Small Business	10
Large Enterprise	6

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...

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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...

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What do you like most about Cloudflare?

Cloudflare offers CDN and DDoS protection. We have the front end, API, and database in how you structure applications.

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What do you like most about Corero?

The DDoS protection features are valuable.

See all answers

What needs improvement with Corero?

Corero needs to improve its application DDoS prevention capabilities and user behavior detection features.

See all answers

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...

See all answers

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...

See all answers

What do you like most about Fortinet FortiDDoS?

The product's initial setup phase was really easy.

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

Comparisons

Quad9 vs Cloudflare

Compared 51% of the time

Akamai vs Cloudflare

Compared 4% of the time

Imperva Application Security Platform vs Cloudflare

Compared 3% of the time

Myra Security DDoS Protection vs Cloudflare

Compared 2% of the time

Azure DNS vs Cloudflare

Compared 2% of the time

More Cloudflare Competitors

Arbor DDoS vs Corero

Compared 29% of the time

Radware DDoS vs Corero

Compared 16% of the time

Imperva Application Security Platform vs Corero

Compared 9% of the time

Cisco Secure DDoS Protection vs Corero

Compared 6% of the time

More Corero Competitors

Arbor DDoS vs Fortinet FortiDDoS

Compared 21% of the time

Radware DDoS vs Fortinet FortiDDoS

Compared 10% of the time

Fortinet FortiWeb vs Fortinet FortiDDoS

Compared 7% of the time

VMware NSX vs Fortinet FortiDDoS

Compared 6% of the time

Uplynk vs Fortinet FortiDDoS

Compared 3% of the time

More Fortinet FortiDDoS Competitors

Product Reports

Buyer's Guide

Cloudflare

January 2026

Download Cloudflare product report

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

January 2026

Download Corero product report

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

January 2026

Download Fortinet FortiDDoS product report

Also Known As

Cloudflare DNS

No data available

Fortinet DDoS, FortiDDos

Overview

Cloudflare enhances web performance and security with features like CDN caching and DDoS mitigation while providing easy DNS management and intuitive setup through its user-friendly dashboard.

Cloudflare is recognized for its comprehensive web security and performance solutions. Speed improvements are achieved through caching mechanisms and DDoS protection, combining ease of DNS management with flexible page rules. The robust analytics and threat insight tools provide valuable data, assisted by a user-friendly dashboard allowing quick setup and configuration. An API offers dynamic DNS settings ensuring low latency and high performance across the globe.

What are Cloudflare's key features?

CDN Caching: Enhances website speed through content delivery network caching.
Web Application Firewall: Protects websites from online threats.
DDoS Mitigation: Shields against distributed denial-of-service attacks.
DNS Management: Offers easy-to-use and flexible domain management.
SSL Certificates: Ensures secure connections between users and servers.
Analytics: Provides insights with robust analytics tools.

What benefits and ROI should users evaluate?

Enhanced Security: Strengthening web security with DDoS and firewall protection.
Speed Improvement: Faster content delivery with CDN caching.
Operational Simplicity: Simplifies website optimization through a user-friendly interface.
Scalable Solutions: Scales with global reach, lowering latency for improved performance.
Cost Efficiency: Offers layers of valuable functionality with pricing options.

Cloudflare finds utility across industries for DNS management and defense mechanisms. Its content delivery network assures fast content distribution and fortified security. Businesses integrate features like web application firewalls, load balancing, end-to-end SSL, and zero trust to protect websites from cyber threats while ensuring resilience and reliable performance.

Cloudflare

Corero Network Security is dedicated to improving the security and availability of the Internet through the deployment of innovative DDoS & Network Security Solutions. The Corero SmartWall® Threat Defense System (TDS) family of products can be deployed in various topologies, (full edge protection or scrubbing). the SmartWall Threat Defense System (TDS) family of solutions utilizes modern DDoS mitigation architecture to automatically, and surgically remove DDoS attack traffic, while allowing good user traffic to flow uninterrupted.

The goal of the Corero automatic DDoS mitigation solution is to protect the customer’s network infrastructure, online services and confidential data from harmful DDoS attacks. The Corero solutions are the highest performing in the industry, while providing the most robust security coverage at unprecedented scale with the lowest total cost of ownership to the customer. These solutions are designed to provide real-time attack mitigation with continuous threat visibility, which allows our customers to also monetize DDoS Protection as-a-Service (DDPaaS) offerings.

Corero

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

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.

Telesystem, Jagex, Hivelocity, Los Angeles Dedicated, Netrics hosting, Hyve, Zacks Investment Research, Dynamic Business Systems, G4BOX INC., GamersFirst, Fastmetrics, San Miguel County

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

Buyer's Guide

Corero vs. Fortinet FortiDDoS

December 2025

Free Report: Corero vs. Fortinet FortiDDoS

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

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