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Corero vs SiteLock comparison

 

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

Corero
Ranking in Distributed Denial-of-Service (DDoS) Protection
15th
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
6
Ranking in other categories
No ranking in other categories
SiteLock
Ranking in Distributed Denial-of-Service (DDoS) Protection
28th
Average Rating
6.6
Reviews Sentiment
8.1
Number of Reviews
3
Ranking in other categories
Static Application Security Testing (SAST) (52nd), CDN (20th), Web Application Firewall (WAF) (39th)
 

Mindshare comparison

As of January 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Corero is 2.5%, down from 3.1% compared to the previous year. The mindshare of SiteLock is 1.0%, up from 0.7% 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 (%)
Corero2.5%
SiteLock1.0%
Other96.5%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

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…
it_user723534 - PeerSpot reviewer
Guitarist at a media company with self employed
It's not easy to get out once you're in
Sitelock may perform a useful service, but be wary of giving them your credit card information. When you sign on for the paid service, Sitelock: * Hides (makes it difficult to find) that they default the auto-renew (you can't sign up without agreeing to have them automatically bill your credit card every year). * Hides (makes it difficult to find) how to stop auto-renew: * You can't just stop auto-renew from your billing panel, the way you can with reputable businesses. * You have to hunt their website for a link (in extremely small font) to the page which contains instructions for cancelling. * When you get to that page, turns out it's the 5000+ word "Terms of Service" document, which you have to scour to find a phone number. Then, you have to call and get put on hold (or if you like, they will call you back three days later). Once you finally get through, you have to jump through a lot of security hoops. All of the above, just to cancel the service. Their product may or may not be OK, but be forewarned that with Sitelock, it's not easy to get out once you're in.
report
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Comms Service Provider
13%
University
9%
Government
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise1
No data available
 

Questions from the Community

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 network DDoS attacks.
What do you recommend for a securing Web Application?
That's one of the most critical questions any development team faces! Securing a web application requires a layered approach, not a single tool. Here is a quick breakdown of what to recommend: In...
 

Comparisons

 

Overview

 

Sample Customers

Telesystem, Jagex, Hivelocity, Los Angeles Dedicated, Netrics hosting, Hyve, Zacks Investment Research, Dynamic Business Systems, G4BOX INC., GamersFirst, Fastmetrics, San Miguel County
galaxyguitar.com, robertasinc.com, indiarunning.com, comprarenpr.com, idbasolutions.com, newgrip.com
Find out what your peers are saying about Corero vs. SiteLock and other solutions. Updated: December 2025.
881,082 professionals have used our research since 2012.