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Corero vs Fastly 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
76
Ranking in other categories
CDN (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (13th)
Corero
Ranking in Distributed Denial-of-Service (DDoS) Protection
18th
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
6
Ranking in other categories
No ranking in other categories
Fastly
Ranking in Distributed Denial-of-Service (DDoS) Protection
13th
Average Rating
8.8
Reviews Sentiment
6.6
Number of Reviews
8
Ranking in other categories
CDN (8th), Web Application Firewall (WAF) (19th)
 

Mindshare comparison

As of August 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 19.7%, up from 18.9% compared to the previous year. The mindshare of Corero is 2.7%, down from 2.9% compared to the previous year. The mindshare of Fastly is 2.4%, up from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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.
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…
Nick Wilsdon - PeerSpot reviewer
An easily scalable and stable product that provides exceptional support
The product should provide improved bot detection and management. The product should also provide support for code management. Everybody working in CDN is currently looking for ways to better manage code deployment with various authorization levels and synchronization with our lower environments. Matching up what's happening in CDN with what's happening on the origin regarding testing would always be useful.

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."
"Generally, I am satisfied with this product."
"It is a fast and secure DNS."
"The most valuable feature is its usability."
"DDoS attacks target unprotected machines. Cloudflare detects and stops these attacks using internal systems. It identifies incoming DDoS attacks, issuing challenges or blocking them immediately."
"New and innovative way to protect the client's data."
"The simplicity of the overall dashboard makes it a great product for a user like me who has less understanding of the internet than a developer or other more technical people. It gives me peace of mind. I also love the easy customization of the Page Rules."
"Even when there is a high load on our servers, Cloudflare is able to cache the data and serve it to users, ensuring they can still access the website."
"It is a good solution. Its vendor support is the most valuable. It is simple and works well if you have Juniper MX routers."
"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."
"This is a hybrid solution."
"The DDoS protection features are valuable."
"The most important aspect, in general, is that the price is suitable for most clients."
"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."
"Support is good; the product works as advertised. We have a Slack connection with them. So we can basically ask for help, live, engage, and ring when they respond. Very quickly."
"Fastly uses configuration versioning, where you can deploy a new version in less than one minute."
"Rate limiting is a good feature that protects from volumetric attacks."
"The product's initial setup phase is straightforward."
"The product helps our organization to access sites located in different regions quickly."
"Its initial setup process is straightforward."
"Compute@Edge features are valuable to me."
 

Cons

"Even if I wanted to, I wouldn't be able to buy Cloudflare in my country."
"Sometimes their more advanced caching tools can cause higher first-byte times and problems with JavaScript."
"The documentation could improve for Cloudflare DNS."
"There might be helpful if there was some web application firewall feature."
"The solution could be more user-friendly."
"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."
"It should be easier to collect the logs with companies like Sumo. However, based on my discussions with the salespeople, I understand that's how they make their money. With the enterprise product, they want people doing those kinds of enterprise features to do the logging. They want them to pay a lot of money, and that's where I have an issue with them. That should be a default. You should be able to get the log no matter what. The logging should be universal."
"I believe they currently have this feature, but there will most likely be integration with APIs so we can control some features through API."
"Corero needs to improve its application DDoS prevention capabilities and user behavior detection features."
"Lacks international presence."
"It could use support in Spanish."
"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."
"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."
"It is missing a "staging" platform to deploy a test configuration with all of the real settings, which would allow us to properly test before putting it into production."
"The product should provide improved bot detection and management."
"The solution's pricing could be better."
"What I don't like about Fastly is that they charge a heavy price."
"Stronger analytics would be helpful, like showing configurations that haven't served a certain amount of traffic in a while. With many properties, things can get lost track of - duplicates or unused configurations not properly decommissioned."
"Support is not that great."
"Fastly's customer service area needs improvement."
 

Pricing and Cost Advice

"That is one of the great features. I was able to access the majority of the features and services for free."
"We are using the free version."
"The price is reasonable."
"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."
"So far I use free tier and happy with it. You can subscribe to business package if needed."
"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."
"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 price of Corero is affordable."
"Its price is normal."
"I've generally found Fastly to be very competitive in pricing, especially around Compute@Edge."
"The solution is cheaper than other products in the market."
"The pricing has been very competitive."
"It is an expensive solution."
"In my opinion, Fastly is priced competitively."
"You need to pay a premium price for the tool."
"Fastly is less expensive than one of its competitors."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
11%
Financial Services Firm
9%
Manufacturing Company
7%
Computer Software Company
22%
Comms Service Provider
11%
Government
7%
Financial Services Firm
6%
Computer Software Company
15%
Comms Service Provider
10%
Financial Services Firm
9%
Manufacturing Company
9%
 

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...
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 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...
What do you like most about Fastly?
Support is good; the product works as advertised. We have a Slack connection with them. So we can basically ask for h...
What needs improvement with Fastly?
Fastly has POPs with huge servers across the world, so it works effectively everywhere except the mainland China regi...
 

Comparisons

 

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.
Telesystem, Jagex, Hivelocity, Los Angeles Dedicated, Netrics hosting, Hyve, Zacks Investment Research, Dynamic Business Systems, G4BOX INC., GamersFirst, Fastmetrics, San Miguel County
Twitter, Airbnb, Alaska Airlines, Pinterest, Vimeo, The Guardian, The New York Times, Ticketmaster, The Drupal Association, Opera, about.com, imgur, Etsy, Foursquare, GitHub, New Relic, shopify, Shazam, Firebase
Find out what your peers are saying about Corero vs. Fastly and other solutions. Updated: July 2025.
865,384 professionals have used our research since 2012.