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 0.8% mindshare. Additionally, 100% of Fastly users are willing to recommend the solution, compared to 66% of SiteLock users who would recommend it.

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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: December 2025).

Buyer's Guide

Fastly vs. SiteLock

December 2025

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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

Mindshare comparison

As of December 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 17.8%, up from 17.9% compared to the previous year. The mindshare of Fastly is 2.7%, up from 2.2% compared to the previous year. The mindshare of SiteLock is 0.8%, up from 0.8% 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 (%)
Cloudflare	17.8%
Fastly	2.7%
SiteLock	0.8%
Other	78.7%

Distributed Denial-of-Service (DDoS) Protection

Featured Reviews

Herb Angle

Owner at Hga consulting

Has helped manage client domains with streamlined access control and threat visibility

I don't know what areas could be improved with Cloudflare WAF; Cloudflare is constantly improving and adding features to their feature set. They're doing a good job, and as far as DNS and support for any domains that I create or my clients create, it's mandatory for me to make sure that they have Cloudflare as their DNS provider. The Cloudflare load balancing capability hasn't really helped in enhancing my website's uptime and resiliency because we don't really get that much traffic; it's mostly remote users, and web hosting is done by a web hosting service. It doesn't pay to try to host your own website.

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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

Computer Software Company

12%

Financial Services Firm

10%

Comms Service Provider

10%

Manufacturing Company

Computer Software Company

12%

Comms Service Provider

11%

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	46
Midsize Enterprise	8
Large Enterprise	25

By reviewers
Company Size	Count
Small Business	5
Large Enterprise	5

No data available

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...

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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...

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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.

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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...

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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?

I believe that Fastly should provide guidelines for their WAF blocking rules. It should be public what the rules are ...

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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 a...

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Comparisons

Quad9 vs Cloudflare

Compared 52% of the time

Akamai vs Cloudflare

Compared 4% of the time

Imperva Application Security Platform vs Cloudflare

Compared 3% of the time

Myra Security DDoS Protection vs Cloudflare

Compared 2% of the time

Google Cloud DNS vs Cloudflare

Compared 1% of the time

More Cloudflare Competitors

Akamai vs Fastly

Compared 22% of the time

Imperva Application Security Platform vs Fastly

Compared 6% of the time

Cloudflare Web Application Firewall vs Fastly

Compared 5% of the time

Azure Front Door vs Fastly

Compared 5% of the time

F5 Advanced WAF vs Fastly

Compared 5% of the time

More Fastly Competitors

Sucuri vs SiteLock

Compared 18% of the time

Imperva Application Security Platform vs SiteLock

Compared 15% of the time

Comodo cWatch vs SiteLock

Compared 14% of the time

Venusense Web Application Firewall vs SiteLock

Compared 10% of the time

Uplynk vs SiteLock

Compared 8% of the time

More SiteLock Competitors

Product Reports

Buyer's Guide

Cloudflare

December 2025

Download Cloudflare product report

Buyer's Guide

Fastly

December 2025

Download Fastly product report

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

November 2025

Download SiteLock product report

Also Known As

Cloudflare DNS

No data available

Overview

Cloudflare enhances web performance and security with features like CDN caching and DDoS mitigation while providing easy DNS management and intuitive setup through its user-friendly dashboard.

Cloudflare is recognized for its comprehensive web security and performance solutions. Speed improvements are achieved through caching mechanisms and DDoS protection, combining ease of DNS management with flexible page rules. The robust analytics and threat insight tools provide valuable data, assisted by a user-friendly dashboard allowing quick setup and configuration. An API offers dynamic DNS settings ensuring low latency and high performance across the globe.

What are Cloudflare's key features?

CDN Caching: Enhances website speed through content delivery network caching.
Web Application Firewall: Protects websites from online threats.
DDoS Mitigation: Shields against distributed denial-of-service attacks.
DNS Management: Offers easy-to-use and flexible domain management.
SSL Certificates: Ensures secure connections between users and servers.
Analytics: Provides insights with robust analytics tools.

What benefits and ROI should users evaluate?

Enhanced Security: Strengthening web security with DDoS and firewall protection.
Speed Improvement: Faster content delivery with CDN caching.
Operational Simplicity: Simplifies website optimization through a user-friendly interface.
Scalable Solutions: Scales with global reach, lowering latency for improved performance.
Cost Efficiency: Offers layers of valuable functionality with pricing options.

Cloudflare finds utility across industries for DNS management and defense mechanisms. Its content delivery network assures fast content distribution and fortified security. Businesses integrate features like web application firewalls, load balancing, end-to-end SSL, and zero trust to protect websites from cyber threats while ensuring resilience and reliable performance.

Cloudflare

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

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.

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

December 2025

Free Report: Fastly vs. SiteLock

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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.