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Azure DDoS Protection 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
1st
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
77
Ranking in other categories
CDN (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (12th)
Azure DDoS Protection
Ranking in Distributed Denial-of-Service (DDoS) Protection
7th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
8
Ranking in other categories
Microsoft Security Suite (22nd)
Corero
Ranking in Distributed Denial-of-Service (DDoS) Protection
16th
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 November 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 18.3%, up from 17.5% compared to the previous year. The mindshare of Azure DDoS Protection is 3.3%, down from 3.7% compared to the previous year. The mindshare of Corero is 2.6%, down from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Market Share Distribution
ProductMarket Share (%)
Cloudflare18.3%
Azure DDoS Protection3.3%
Corero2.6%
Other75.8%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

Carlos Alam Hernandez Baruch - PeerSpot reviewer
Fast and secure deployments simplify operations for government and fintech clients
It is a fast and secure DNS. It is very easy to deploy, and my customers are happy with this tool. Additionally, the CDN performance in Mexico is excellent, providing fast service and tools. It offers reliability during high-traffic periods, ensuring no impact on the environment. It helps my clients avoid using on-premise boxes, simplifying operations as they only use the prices on Cloudflare.
Dinesh Jaisankar - PeerSpot reviewer
Security architecture shields infrastructure but dashboard needs enhancement
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. The security architecture with Azure DDoS Protection is critical for safeguarding our financial organization's infrastructure. Although implementing it is pricier, it is worth using since our applications are entirely in Azure.
Björn Lindman - PeerSpot reviewer
The product is highly stable and has valuable features, but it must provide more Layer 7 capabilities
We use the solution for DDoS protection in the routers The DDoS protection features are valuable. The product must provide more Layer 7 capabilities. It must provide deep inspection features. I have been using the solution for ten years. The tool has high stability. I rate the stability a nine…

Quotes from Members

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

Pros

"There are key things that are used for our enterprise customers, such as Lambda and DNS."
"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."
"Cloudflare offers CDN and DDoS protection. We have the front end, API, and database in how you structure applications."
"Cloudflare consolidates various capabilities into one product, streamlining processes."
"The most valuable feature of Cloudflare DNS is its global reach and it is always evolving."
"Easier http to https redirect using page rules"
"The web application firewall brought us good security and a view of the accesses/blocks of the entire domain and subdomain that were accessed both by region (country) and IPs."
"New and innovative way to protect the client's data."
"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."
"Azure is easy to set up and widely used by our clients."
"Azure is easy to set up and widely used by our clients."
"DDoS Protection is simple to deploy and integrates seamlessly with the Azure environment. Ease of deployment is a crucial feature for us."
"The integration of various tools with Azure Firewall, like DDoS Protection, Web Application Firewall, and Azure Front Door, is quite effective."
"AI capabilities are very good. I would rate them an eight out of ten."
"Azure DDoS Protection offers superior protection against denial-of-service attacks."
"The most valuable feature of Azure DDoS Protection is that it performs well."
"The DDoS protection features are valuable."
"The most important aspect, in general, is that the price is suitable for most clients."
"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."
"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."
"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."
 

Cons

"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."
"I would like Cloudflare to offer a dedicated account manager for large enterprise clients like us."
"If they improve on the placement of their data centers, it would be better. I'm living in a remote area. I would like to connect to them without any kind of lag."
"The solution could use more analytics on the backend to give us more insights into everything. More reports would be helpful."
"There should be a specific price list for enterprise-level customers."
"It would be good if Cloudflare could have more servers for better traffic routing or an increase in the traffic routed. This is what I'd like to improve in Cloudflare."
"The pricing could be improved."
"There could be more courses with engineers. I like e-learning, however, having a specialist in a classroom is more comfortable for me."
"Azure DDoS Protection could improve on the reporting."
"The dashboard lacks insights and user-friendliness, as most data is logged into metrics like Log Analytics workspaces."
"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 implementation of Azure DDoS Protection results in a decrease in our bandwidth capacity and should be optimized to reduce resource consumption."
"I suggest adding more services and additional services, which would be beneficial."
"I have noticed some false positives with the Web Application Firewall yet not with DDoS Protection."
"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."
"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."
"It could use support in Spanish."
"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

"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 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."
"The cost primarily depends on the size of the organization."
"We are using the free version."
"A free version of the solution is available."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"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."
"The price of the solution is expensive."
"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
Computer Software Company
13%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Computer Software Company
15%
Financial Services Firm
11%
Comms Service Provider
10%
Government
8%
Computer Software Company
18%
Comms Service Provider
12%
University
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business2
Midsize Enterprise3
Large Enterprise3
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 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.
What do you like most about Azure DDoS Protection?
Azure DDoS Protection offers superior protection against denial-of-service attacks.
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...
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...
What do you like most about Corero?
The DDoS protection features are valuable.
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...
 

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.
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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 Azure DDoS Protection vs. Corero and other solutions. Updated: September 2025.
872,922 professionals have used our research since 2012.