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Cloudflare vs Corero comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

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
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)
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 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%
Corero2.6%
Other84.2%
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.
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

"The API gives us the ability to remote control our DNS settings."
"I have not had a DDOS attack since, or at least not become unavailable due to DDOS which means my ROI is pretty good."
"It is easier to configure and develop documentation to see how we have configured firewalls."
"There is no service as mature as Cloudflare that is also as easy to use, reliable, and hosted from excellent infrastructure."
"We're partners with Cloudflare; this solution is the best product and it does not charge you for any kind of attack on your traffic, only for good traffic, and it can mitigate up to 30 TBPS of DDoS attacks."
"It is very clear and the information is very useful."
"DDoS protection is this product’s most valuable feature."
"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."
"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."
"The most important aspect, in general, is that the price is suitable for most clients."
"This is a hybrid solution."
"The DDoS protection features are valuable."
"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."
"It is a very efficient and robust appliance."
"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."
 

Cons

"There should at least be a read-only view of the data so that resellers can properly support the clients."
"Areas like how assessment, discovery, and payload are dealt with and how it all comes into your organization can be considered when trying to make suggestions to Cloudflare for improvements."
"There should be a specific price list for enterprise-level customers."
"I would like to not need a separate server for non-www redirection under the CNAME setup option."
"Several features that I think is essential is not available in the free and business package."
"The product support needs to be accessible from more places, a wider area of coverage."
"I rate technical support quite badly."
"The one feature that is paid is the custom nameservers instead of using the default ones, I want to use a custom one."
"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."
"Juniper is known in our country, but it is not very popular."
"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."
"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."
"Corero needs to improve its application DDoS prevention capabilities and user behavior detection features."
"Lacks international presence."
"It could use support in Spanish."
 

Pricing and Cost Advice

"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 product's pricing is minimal compared to other products."
"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."
"We are using the free version."
"Cloudflare's pricing is not much higher and is good for middle-level organizations."
"The pricing for the service is reasonable, neither excessively cheap nor prohibitively expensive. It aligns well with the value of their solution."
"We are using the free tier of the solution."
"The price of Corero is affordable."
"Its price is normal."
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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
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 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 GRE tunnels. We have decreased site load times on Mobile 3G from 8 to 1,6 seconds ...
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 that offers great redundancy and advanced security with built-in unmetered and ...
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 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 network DDoS attacks.
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 licensing costs.
 

Comparisons

 

Also Known As

Cloudflare DNS
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.
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 Cloudflare vs. Corero and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.