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Fastly 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

Fastly
Ranking in CDN
7th
Ranking in Web Application Firewall (WAF)
19th
Ranking in Distributed Denial-of-Service (DDoS) Protection
12th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
7
Ranking in other categories
No ranking in other categories
SiteLock
Ranking in CDN
20th
Ranking in Web Application Firewall (WAF)
40th
Ranking in Distributed Denial-of-Service (DDoS) Protection
27th
Average Rating
6.6
Reviews Sentiment
8.1
Number of Reviews
3
Ranking in other categories
Static Application Security Testing (SAST) (64th)
 

Mindshare comparison

As of July 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Fastly is 2.4%, up from 2.0% compared to the previous year. The mindshare of SiteLock is 0.7%, down from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

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.
it_user723534 - PeerSpot reviewer
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.
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Comms Service Provider
9%
Manufacturing Company
8%
Computer Software Company
18%
Financial Services Firm
12%
Real Estate/Law Firm
10%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

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 help, live, engage, and ring when they respond. Very quickly.
What needs improvement with Fastly?
What I don't like about Fastly is that they charge a heavy price. The pricing is different per region. If you have a customer who is international and has deployments in different regions, it is ve...
What do you recommend for a securing Web Application?
In addition to Sitelock and Immuniweb, another option to consider for a 24/7 automated vulnerability monitoring tool to protect web applications is Modshield SB Modshield SB is a web application fi...
 

Comparisons

 

Overview

 

Sample Customers

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
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Find out what your peers are saying about Fastly vs. SiteLock and other solutions. Updated: May 2025.
860,168 professionals have used our research since 2012.