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AWS WAF vs The Fastly Next-Gen WAF (powered by Signal Sciences) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 1, 2025

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
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
76
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (13th)
AWS WAF
Average Rating
8.0
Reviews Sentiment
7.6
Number of Reviews
59
Ranking in other categories
Web Application Firewall (WAF) (1st)
The Fastly Next-Gen WAF (po...
Average Rating
7.6
Reviews Sentiment
7.1
Number of Reviews
3
Ranking in other categories
Web Application Firewall (WAF) (28th)
 

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.
Kavin Kalaiarasu - PeerSpot reviewer
AWS's cloud-native security simplifies rule enforcement but needs better DDoS integration
The dashboarding could be improved, and the default metrics provided by AWS WAF could be upgraded. The rate at which AWS updates their managed rule sets could be better. Features like bot protection or DDoS mitigation, available with other WAF vendors, do not come natively with AWS WAF. Instead, they are part of AWS Shield. Providing DDoS protection as part of their WAF solution would be beneficial.
Shashank N - PeerSpot reviewer
Provides good stability, but the agent-based approach could be more convenient
The areas that could be improved in Signal Sciences include the effectiveness of rules, as many didn't function optimally and required custom rule-writing to address bypasses for WAF. Additionally, the agent-based approach presents challenges with managing agents across versions and dependencies on specific application platforms like Apache or NGINX, leading to compatibility issues and complexity in integration. This agent-based system proved particularly difficult to manage.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Cloudflare consolidates various capabilities into one product, streamlining processes."
"The most valuable feature is its usability."
"The DDoS protection is the most valuable aspect of the solution."
"The solution provides good load balancing and protection against DDoS attacks."
"Easier http to https redirect using page rules"
"It's a great product because it's scalable, has great coverage, and is mature with good defenses against DDoS attacks."
"The web application firewall brought us good security and a view of the accesses/blocks of the entire domain and subdomain that were accessed both by region (country) and IPs."
"The most valuable feature is the web application firewall."
"The solution's initial setup process is easy."
"We can host any DB or application on the solution."
"The initial setup was very straightforward. Deployment took about ten minutes or less."
"This is not a product that you need to install. You just use it."
"We preferred the product based on its cost. AWS WAF is an out-of-the-box solution and integrates with the AWS services that we use. It's natively integrated with AWS."
"AWS WAF is very easy to use and configure on AWS."
"AWS WAF is a stable solution. The performance of the solution is very good."
"The most valuable feature is the scalability because it automatically scales up or scales down as per our requirements."
"The product's most valuable feature is its ability to set up the rules easily."
"Fastly (Signal Sciences) integrates and tags the intermittent traffic based on patterns. It generates signals and provides them in a dashboard where we can view them and decide whether to allow or deny traffic. It's a more advanced and easy-to-navigate dashboard."
"When configuring a web application firewall using Signal Sciences, we configure a rule whereby no one except a few people can access the application."
 

Cons

"If they improve on the placement of their data centers, it would be better. I'm living in a remote area. I would like to connect to them without any kind of lag."
"Cloudflare should add more documentation and pricing to the cloud version."
"Cloudflare's free plan is limited to 5,000 records for their free plan. They should increase that. For example, if I create a domain called abc.com and a subdomain called a.abc.com, my record count will be two. I can make a maximum of 5,000 subdomains. However, if we use our own DNS hosted on another provider, there is no limit. Their free plan also lacks name server customization."
"Cloudflare's console should be made more user-friendly."
"Integration involving API with other products could be more user-friendly."
"The pricing could be improved."
"One area of improvement is in the Access Rules. Hypothetically, if we wanted to block or challenge traffic outside of the United States, the only way to currently do that (as far as I know) is to enter every single country outside of the United States. That could be a labor intensive job. A solution could be to enable users to create a rule where traffic is only allowed within a certain country."
"I believe they currently have this feature, but there will most likely be integration with APIs so we can control some features through API."
"AWS WAF could improve by making the overall management easier. Many people that have started working with AWS WAF do not have an easy time. They should make it easy to use."
"I find the documentation somewhat complex to implement during the initial stages."
"It would be better if AWS WAF were more flexible. For example, if you take a third-party WAF like Imperva, they maintain the rule set, and these rule sets are constantly updated. They push security insights or new rules into the firewall. However, when it comes to AWS, it has a standard set of rules, and only those sets of rules in the application firewalls trigger alerts, block, and manage traffic. Alternative WAFs have something like bot mitigation or bot control within the WAF, but you don't have such things in AWS WAF. I will say there could have been better bot mitigation plans, there could have been better dealer mitigation plans, and there could be better-updated rule sets for every security issue which arises in web applications. In the next release, I would like to see if AWS WAF could take on DDoS protection within itself rather than being in a stand-alone solution like AWS Shield. I would also like a solution like a bot mitigation."
"They have to do more to improve, to innovate more features. They need to increase the security. It has to be more active in detecting threats."
"The product must provide more features."
"They should work to define more threats, add more security, and make it more compliant with more security companies."
"We have issues with reporting, troubleshooting, and analytics. AWS WAF needs to bring costs down."
"When users choose the free service, there isn't great support available to them."
"Even if we create some custom rules, Signal Sciences cannot capture some of the malicious traffic."
"The areas that could be improved in Signal Sciences include the effectiveness of rules, as many didn't function optimally and required custom rule-writing to address bypasses for WAF."
"Fastly don't support caching for China users. That's the only feature lacking compared to Akamai."
 

Pricing and Cost Advice

"Cloudflare's pricing is not much higher and is good for middle-level organizations."
"I give the price a five out of ten."
"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 solution has many features but there are ones that you need to pay for. Sometimes you have to find out which is available for free and which you have to pay for."
"We are using the free version."
"A free version of the solution is available."
"We don't have any issues with the price."
"The product's pricing is minimal compared to other products."
"AWS WAF has reasonable pricing."
"The solution is affordable."
"There are different scale options available for WAF."
"AWS is not that costly by comparison. They are maybe close to $40 per month. I think it was between $29 or $39."
"The price of AWS WAF is expensive if you do not know how to manage your software up or down. I price of the solution is average amongst the other competitors but it would be better if it was less expensive."
"For our infrastructure, we probably pay around $16,000 per month for AWS WAF. Because alternative WAF solutions provide even more features, I think the AWS WAF is a bit pricey"
"It's quite affordable. It's in the middle."
"The pricing is good and manageable."
"Signal Sciences is pretty cheap compared to other solutions."
"The pricing is 50% less than Akamai."
"The product has an affordable cost."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Computer Software Company
16%
Financial Services Firm
14%
Manufacturing Company
8%
Government
6%
Computer Software Company
13%
Manufacturing Company
11%
Healthcare Company
10%
Financial Services Firm
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
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...
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 are the limitations of AWS WAF vs alternative WAFs?
Hi Varun, I have had experienced with several WAF deployments and deep technical assessments of the following: 1. Im...
How does AWS WAF compare to Microsoft Azure Application Gateway?
Our organization ran comparison tests to determine whether Amazon’s Web Service Web Application Firewall or Microsoft...
What do you like most about AWS WAF?
The most valuable feature of AWS WAF is its highly configurable rules system.
What do you like most about Signal Sciences?
The product's most valuable feature is its ability to set up the rules easily.
What needs improvement with Signal Sciences?
Fastly don't support caching for China users. That's the only feature lacking compared to Akamai.
 

Also Known As

Cloudflare DNS
AWS Web Application Firewall
Signal Sciences Next-Gen WAF, Signal Sciences RASP
 

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.
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Chef, Adobe, Datadog, Etsy, GrubHub, Vimeo, SendGrid, Under Armour, Duo, AppNexus
Find out what your peers are saying about AWS WAF vs. The Fastly Next-Gen WAF (powered by Signal Sciences) and other solutions. Updated: July 2025.
863,901 professionals have used our research since 2012.