Azure DDoS Protection vs Corero comparison

Microsoft and Corero are both solutions in the Distributed Denial-of-Service (DDoS) Protection category. Microsoft is ranked #8 with an average rating of 8.0, while Corero is ranked #20 with an average rating of 7.0. Microsoft holds a 4.0% mindshare in DDOS, compared to Corero’s 3.0% mindshare. Additionally, 100% of Microsoft users are willing to recommend the solution, compared to 83% of Corero users who would recommend it.

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Executive SummaryUpdated on Dec 5, 2024

Corero and Azure DDoS Protection compete in the network security market. Azure DDoS Protection tends to have an advantage for those who prioritize comprehensive functionality and integration capabilities.

Features: Corero offers real-time DDoS attack mitigation, precise threat intelligence, and effective handling of smaller attacks. Azure DDoS Protection provides seamless integration with Microsoft cloud services, advanced reporting capabilities, and continuous monitoring using in-built rules for pre-configured attack detection.

Room for Improvement: Corero could enhance its application filtering and prevention, expand its usability, and offer broader application DDoS protection. Azure DDoS Protection might improve the personalization of its support services, reduce its dependency on cloud architecture, and expand security options beyond its core offerings.

Ease of Deployment and Customer Service: Corero is known for an adaptable deployment model and swift on-premises setup, supported by responsive customer service. Azure DDoS Protection, with its cloud-based deployment, is straightforward for Azure users but may feel less personal due to its larger scale of operations.

Pricing and ROI: Corero provides competitive pricing with a clear ROI focused on effective mitigation that offsets setup costs. Azure DDoS Protection, while initially more expensive, offers a strong value by integrating with Azure's ecosystem, appealing to those who seek a feature-rich environment.

To learn more, read our detailed Azure DDoS Protection vs. Corero Report (Updated: March 2025).

Buyer's Guide

Azure DDoS Protection vs. Corero

March 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 April 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 19.4%, up from 19.2% compared to the previous year. The mindshare of Azure DDoS Protection is 4.0%, up from 3.7% compared to the previous year. The mindshare of Corero is 3.0%, up from 2.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Distributed Denial-of-Service (DDoS) Protection

Featured Reviews

Spencer Malmad

Owner at Tech Exchange

It's easy to set up because you point the DNS to it, and it's working in under 15 minutes

Cloudflare is highly scalable. Cloudflare is a system with a web portal that the end users like me see. It's a console where we can adjust the DNS, caching, and security features all in that console. Cloudflare owns thousands of servers across the world that cache the data. It's a powerful solution. When clients sign up for Cloudflare, they're getting this monster content delivery network, security, and a web application firewall in one. It's all rolled into one, and it's massive. Unless you have your website hosted on a massive hosting provider, there's no way that you can deliver the amount of data that Cloudflare can provide to the end users. If you have static content, there's no way that you can ever match what Cloudflare can do. Obviously, there are competitors to Cloudflare that do the same, but I'm saying other types of solutions. Let's say you go with F5. Great, that's on-prem. That's in your colo. You can't deliver as much data to the internet as you can with a CDN. You don't have to spend $20,000 on a net scaler, F5, or whatever Cisco's selling now. You don't have to buy that. You pay them $50 a month or $150 a month. It's totally worth it because even in five years, you'll never get the performance value, not just the actual ROI. You have to consider how much throughput you can get with Cloudflare.

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Venkat Raju Mallipudi

Group Chief of Enterprise Architecture & S/W Engineering/ CTO at Aventra Group

Acts as an additional layer of protection, provides endpoint security but not very easy to configure

It's not very easy to configure, in my view. We have to do some work behind the scenes. It's not very simple. We have to do it very carefully, and we need to monitor this enablement as well. But apart from that, I didn't see any kind of challenges. So, in my opinion, configuration is the main trouble for them. It is something that can be done to be better. Not just configuration. You need an expert who knows the ins and outs of these security solutions. In my experience, people struggle with configuration. While configuring, we get this error, we get that error, and then we try to fix those issues. I have seen those. It's not straightforward.

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Helder Gaudencio

Diretor de Tecnologia at Lever Tech - Tecnologia Sustentavel

Effect local attack handling, intuitive interface, and scalable

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.

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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 DNS is security."

"The most valuable feature of Cloudflare is the GUI. You are able to control the solution very well through the interface. There is a lot of functionality that is embedded in the service."

"The tool is user-friendly."

"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."

"Many websites require an SSL certificate because they sell stuff and want SSL. Cloudflare comes with an SSL certificate built in. It's automatic. You sign yourself up for Cloudflare, and an SSL certificate automatically protects your website. You don't necessarily need a certificate if you have a connection between your website and your host, the server, Cloudflare, and the host."

"I like Cloudflare's application gateway and DDoS protection."

More Cloudflare pros

"This solution is the best option for us because we use a lot of Microsoft products. So, it is easy for us to deploy or integrate any features or products."

"DDoS Protection is simple to deploy and integrates seamlessly with the Azure environment. Ease of deployment is a crucial feature for us."

"The Azure DDoS Protection plan is essential for environments like ours that are highly exposed to potential attacks, especially since DDoS attacks have become common."

"AI capabilities are very good. I would rate them an eight out of ten."

"The integration of various tools with Azure Firewall, like DDoS Protection, Web Application Firewall, and Azure Front Door, is quite effective."

"Azure DDoS Protection offers superior protection against denial-of-service attacks."

"Azure is easy to set up and widely used by our clients."

More Azure DDoS Protection pros

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

"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 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."

"This is a hybrid solution."

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

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

"The DDoS protection features are valuable."

Cons

"There might be helpful if there was some web application firewall feature."

"Even if I wanted to, I wouldn't be able to buy Cloudflare in my country."

"The solution could work at being less expensive. It costs a lot to use it."

"We're facing challenges due to an upgrade in the machine learning model. The problem arises from some users abusing the APIs, resulting in an influx of suspicious traffic. Cloudflare's learning model mistakenly identifies this traffic as human. Consequently, it assigns it a higher trust score, akin to legitimate human traffic, causing complications in our architecture. Previously, such traffic would have been categorized as suspicious, enabling us to apply appropriate blocking rules. However, we encounter difficulties distinguishing between genuine and suspicious traffic with the new categorization. Despite these challenges, overall, Cloudflare remains the preferred solution compared to Azure, AWS CloudFront, and Google Cloud Armor."

"There are some issues with the CDN services."

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

"There could be more courses with engineers. I like e-learning, however, having a specialist in a classroom is more comfortable for me."

"Cloudflare should add more documentation and pricing to the cloud version."

More Cloudflare cons

"The implementation of Azure DDoS Protection results in a decrease in our bandwidth capacity and should be optimized to reduce resource consumption."

"Azure DDoS Protection could improve on the reporting."

"I have noticed some false positives with the Web Application Firewall yet not with DDoS Protection."

"The visibility could be better. We would like to have better metrics, so we could see all the information in a central place."

"Sometimes, it is hard for our staff to keep track of changes (in the GUI) between different projects, because there are constant changes. As a result, it is hard to manage, recall, and see all the features because they have been moved from one place to another."

"It's not very easy to configure, in my view."

"The dashboard lacks insights and user-friendliness, as most data is logged into metrics like Log Analytics workspaces."

"I suggest adding more services and additional services, which would be beneficial."

"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."

"Lacks international presence."

"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."

"The product must provide more Layer 7 capabilities."

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

Pricing and Cost Advice

"There are no additional costs beyond the standard licensing fees."

"Cloudflare's pricing is not much higher and is good for middle-level organizations."

"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."

"In terms of licensing costs, we don't pay for licensing for Cloudflare. We only establish communication, then for peering, Cloudflare takes care of the cross-connection in different data centers."

"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."

"We don't have any issues with the price."

"It's a premium model. You can start at zero and work your way up to the enterprise model, which has a very high pricing level."

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

More Cloudflare pricing and cost advice

"You can test it for a certain period of time free of charge. You can have a free account. You can test it to compare its pros and cons with other products that you are testing."

"It is an expensive solution."

"The price of Corero is affordable."

"Its price is normal."

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Top Industries

By visitors reading reviews

Educational Organization

20%

Computer Software Company

13%

Comms Service Provider

Financial Services Firm

Computer Software Company

18%

Financial Services Firm

13%

Government

Manufacturing Company

Computer Software Company

29%

Comms Service Provider

10%

Financial Services Firm

Manufacturing Company

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?

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...

See all answers

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 Azure DDoS Protection?

Azure DDoS Protection offers superior protection against denial-of-service attacks.

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What is your experience regarding pricing and costs for Azure DDoS Protection?

The pricing is somewhat costly, usually around $3,000 to $4,000 per month. Managing this expense is tough, especially...

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What needs improvement with Azure DDoS Protection?

The dashboard lacks insights and user-friendliness, as most data is logged into metrics like Log Analytics workspaces...

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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

Comparisons

Quad9 vs Cloudflare

Compared 50% of the time

Akamai vs Cloudflare

Compared 4% of the time

Azure Front Door vs Cloudflare

Compared 4% of the time

Azure DNS vs Cloudflare

Compared 3% of the time

Amazon Route 53 vs Cloudflare

Compared 2% of the time

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AWS Shield vs Azure DDoS Protection

Compared 28% of the time

Azure Firewall vs Azure DDoS Protection

Compared 10% of the time

Azure Front Door vs Azure DDoS Protection

Compared 10% of the time

Microsoft Defender for Cloud vs Azure DDoS Protection

Compared 7% of the time

Arbor DDoS vs Azure DDoS Protection

Compared 7% of the time

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Arbor DDoS vs Corero

Compared 49% of the time

Radware DDoS Protection Service vs Corero

Compared 15% of the time

Imperva DDoS vs Corero

Compared 7% of the time

Cisco Secure DDoS Protection vs Corero

Compared 6% of the time

Nexusguard DDoS Protection vs Corero

Compared 5% of the time

More Corero Competitors

Product Reports

Buyer's Guide

Cloudflare

April 2025

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Buyer's Guide

Azure DDoS Protection

April 2025

Download Azure DDoS Protection product report

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

March 2025

Download Corero product report

Also Known As

Cloudflare DNS

No data available

Overview

Cloudflare is a highly-regarded Content Delivery Network (CDN) and a Distributed Denial-of-Service (DDoS) protection solution. The robust global connectivity cloud platform that is Cloudflare ensures users are able to connect to the Internet quickly, securely, and reliably. Cloudflare is one of the world's largest networks in the marketplace today. Using Cloudflare, businesses, educational entities, NGOs, vloggers, bloggers, and anyone else with an internet presence can experience more secure, faster websites and applications.

Currently, there are millions of Internet locations on Cloudflare, and the Cloudflare network
continues to grow every day by the thousands. The solution is able to fulfill the requests for
millions of websites seamlessly and serves on average 45 million HTTP requests per second.

Cloudflare has safe, secure data centers in close to 300 cities worldwide to ensure every
client request is filled as quickly as possible. It is Cloudflare’s edge network that makes this
possible by keeping content and other services as close to each client as possible, so the
information requests are always only seconds away.

Many organizations that work in democracy, civil society, human rights, or the arts are able to
access Cloudflare's highest levels of protection for free via Project Galileo. Additionally, official
election websites can be secured from hacking and fraud through Cloudflare’s Project
Athenian, also at no additional cost.

Cloudflare can also help organizations of all sizes develop a robust zero-trust strategy to
ensure the highest levels of productivity and profitability. Employees, stakeholders, and end users have a greater level of satisfaction and overall improved user experience, which can, in
turn, result in higher revenues and overall ROI. Zero-trust and BYOD (bring your own device)
access ensure end users and employees always have the best resources and technology
available to them at all times.

Cloudflare benefits

Cloudflare has many benefits. Some of its most valuable benefits include:

- Faster load times

- Robust DNS security

- Intuitive cloud Web Application Firewall (WAF)

- Free universal SSL

- Image enhancement

- Automatic browser caching

- Next-generation cloud load balancer

- Accelerated Mobile Pages (AMP)

- Rate limiting

- Minification

- Zero-trust capabilities

- Cost-effective

- Reduced carbon footprint

Reviews from real users

“Many websites require an SSL certificate because they sell stuff and want SSL. Cloudflare
comes with an SSL certificate built in. It's automatic. You sign yourself up for Cloudflare, and
an SSL certificate automatically protects your website. If you have a connection between your
website and your host, the server, Cloudflare, and the host, you don't necessarily need a
certificate.” Spencer M., Owner at Tech Exchange

“What I like best about Cloudflare is that my company can use it to trace and manage
applications and monitor traffic. The solution tells you if there's a spike in traffic. Cloudflare
also sends you a link to check your equipment and deployment and track it through peering,
so it's a valuable tool.” Daniel P., Network Engineer at Ufinet

“The most valuable feature of Cloudflare is the GUI. You are able to control the solution very
well through the interface. There is a lot of functionality that is embedded in the service.” PeerSpot user, Competence Center Manager at a tech services company

Cloudflare

Azure DDoS Protection, combined with application design best practices, provides defense against DDoS attacks.

To learn more about our solution, ask questions, and share feedback, join our Microsoft Security, Compliance and Identity Community.

Microsoft

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

Sample Customers

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

Information Not Available

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

Buyer's Guide

Azure DDoS Protection vs. Corero

March 2025

Free Report: Azure DDoS Protection vs. Corero

Find out what your peers are saying about Azure DDoS Protection vs. Corero and other solutions. Updated: March 2025.

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