Fastly vs SiteLock comparison

Fastly and SiteLock are both solutions in the Distributed Denial-of-Service (DDoS) Protection category. Fastly is ranked #10 with an average rating of 9.0, while SiteLock is ranked #28. Fastly holds a 2.7% mindshare in DDOS, compared to SiteLock’s 1.0% mindshare. Additionally, 100% of Fastly users are willing to recommend the solution, compared to 66% of SiteLock users who would recommend it.

Fastly

Read 9 Fastly reviews

2,044 Views
818 Comparison Views

100% willing to recommend

SiteLock

Read 3 SiteLock reviews

874 Views
332 Comparison Views

66% willing to recommend

Fastly

SiteLock

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 5, 2024

SiteLock and Fastly compete in the cybersecurity and content delivery markets, respectively. Fastly appears to have an edge due to its advanced performance features, though SiteLock provides comprehensive security measures.

Features: SiteLock offers malware detection, DDoS protection, and a user-friendly control panel, focusing on robust security for businesses. Fastly provides real-time content delivery network services, instant purging, and edge computing capabilities, enhancing speed for content-heavy industries.

Ease of Deployment and Customer Service: SiteLock's deployment is straightforward with a comprehensive support structure, appealing to businesses seeking accessible solutions. Fastly, while more complex, provides detailed documentation and support for technical users, suitable for teams with advanced IT capabilities.

Pricing and ROI: SiteLock generally offers lower initial investment, with scalable plans for smaller to mid-sized businesses, delivering good ROI for security. Fastly employs usage-based pricing, appealing to large enterprises with high-performance needs, justified by its scalability and output.

To learn more, read our detailed Fastly vs. SiteLock Report (Updated: January 2026).

Buyer's Guide

Fastly vs. SiteLock

January 2026

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Helped 881,082 peers since 2012

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

8th

Ranking in Web Application Firewall (WAF)

18th

Ranking in Distributed Denial-of-Service (DDoS) Protection

10th

Average Rating

8.8

Reviews Sentiment

6.3

Number of Reviews

Ranking in other categories

No ranking in other categories

SiteLock

Ranking in CDN

20th

Ranking in Web Application Firewall (WAF)

39th

Ranking in Distributed Denial-of-Service (DDoS) Protection

28th

Average Rating

6.6

Reviews Sentiment

8.1

Number of Reviews

Ranking in other categories

Static Application Security Testing (SAST) (52nd)

Mindshare comparison

As of January 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Fastly is 2.7%, up from 2.2% 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
Product	Market Share (%)
Fastly	2.7%
SiteLock	1.0%
Other	96.3%

Distributed Denial-of-Service (DDoS) Protection

Featured Reviews

Patel Parth

Technical support engineer at Adobe

Optimized ecommerce performance and improved access control through image handling and IP filtering

I believe that Fastly should provide guidelines for their WAF blocking rules. It should be public what the rules are that are blocking their contents. I believe Fastly should provide regional IP addresses instead of POP IPs. Fastly should provide features similar to Cloudflare regarding a block list. Additionally, a POP address should be there with a wide range of IP addresses provided, public static IP addresses, so customers can integrate egress IPs. Fastly should provide WebP image processing on the backend instead of on the fly. It would be a very useful feature to avoid unnecessary time for browser to browser and local cookies. I believe that Fastly service has a few gaps. We are not getting quick responses from Fastly technical support engineers. Sometimes they depend on their D3 developers. There should be transparency.

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it_user723534

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.

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Top Industries

By visitors reading reviews

Comms Service Provider

10%

Computer Software Company

10%

Financial Services Firm

10%

Retailer

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	5
Large Enterprise	5

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.

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What is your experience regarding pricing and costs for Fastly?

You need to pay a premium price for the tool.

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What needs improvement with Fastly?

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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...

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Comparisons

Akamai vs Fastly

Compared 22% of the time

Cloudflare vs Fastly

Compared 20% of the time

Imperva Application Security Platform vs Fastly

Compared 7% of the time

Cloudflare Web Application Firewall vs Fastly

Compared 5% of the time

Azure Front Door vs Fastly

Compared 4% of the time

More Fastly Competitors

Cloudflare vs SiteLock

Compared 23% of the time

Sucuri vs SiteLock

Compared 18% of the time

Imperva Application Security Platform vs SiteLock

Compared 16% of the time

Comodo cWatch vs SiteLock

Compared 14% of the time

Venusense Web Application Firewall vs SiteLock

Compared 8% of the time

More SiteLock Competitors

Product Reports

Buyer's Guide

Fastly

January 2026

Download Fastly product report

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

January 2026

Download SiteLock product report

Overview

Fastly helps the world’s most popular digital businesses keep pace with their customer expectations by delivering fast, secure, and scalable online experiences. Businesses trust Fastly’s edge cloud platform to accelerate the pace of technical innovation, mitigate evolving threats, and scale on demand.

Fastly

Real website security means protection from the inside out as well as the outside in. SiteLock does it all -- daily scanning, automatic malware removal, web app firewall, a global CDN for a blazingly fast website and our support team is here for you 24/7. Our dynamic Trust Seal shows visitors your website is safe, increasing conversions and ROI.

SiteLock

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

galaxyguitar.com, robertasinc.com, indiarunning.com, comprarenpr.com, idbasolutions.com, newgrip.com

Buyer's Guide

Fastly vs. SiteLock

January 2026

Free Report: Fastly vs. SiteLock

Find out what your peers are saying about Fastly vs. SiteLock and other solutions. Updated: January 2026.

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See our Fastly vs. SiteLock report.

See our list of best Distributed Denial-of-Service (DDoS) Protection vendors, best CDN vendors, and best Web Application Firewall (WAF) vendors.

We monitor all Distributed Denial-of-Service (DDoS) Protection reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.