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Radware Cloud WAF Service 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

Radware Cloud WAF Service
Ranking in Web Application Firewall (WAF)
2nd
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
73
Ranking in other categories
No ranking in other categories
The Fastly Next-Gen WAF (po...
Ranking in Web Application Firewall (WAF)
34th
Average Rating
7.6
Reviews Sentiment
4.8
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Web Application Firewall (WAF) category, the mindshare of Radware Cloud WAF Service is 1.6%, up from 1.2% compared to the previous year. The mindshare of The Fastly Next-Gen WAF (powered by Signal Sciences) is 1.2%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
Radware Cloud WAF Service1.6%
The Fastly Next-Gen WAF (powered by Signal Sciences)1.2%
Other97.2%
Web Application Firewall (WAF)
 

Featured Reviews

AT
SOC Analyst at Adani Enterprises Ltd
Has significantly improved threat visibility and reduced false positives through intelligent bot detection and real-time analysis
The best features of Radware Cloud WAF Service that I prefer most include the bot protection. Its deployment was very smooth and flexible when I started deploying it. The reporting and visibility feature of the Bot Manager are noteworthy, as the dashboard gives clear insight into the traffic, activity, and block threats. The AI threat intelligence feature is quite impressive. In terms of blocking unknown threats and attacks, I assess Radware Cloud WAF Service as quite impressive; if I have to rate it out of 10, I would rate it eight and a half. The automated analytics for looking at events with Radware Cloud WAF Service is generally fine, and whenever we use it, it gives almost perfect results. In API protection with Radware Cloud WAF Service, we have multiple applications that we are using currently, and whenever there is any threat related to an API, it helps us provide detailed insight. Additionally, whenever there is unusual API traffic, it helps us monitor and detect threats.
reviewer2161107 - PeerSpot reviewer
Staff Engineer at a retailer with 1,001-5,000 employees
Room for improvement with user interface while competitive pricing impresses
It is managed through Infrastructure as Code, so all configurations can be managed in the code itself, which is beneficial. Because it uses rules, it is easy to set up, and we have many different sites where the configurations are straightforward. Though the UI is not very interactive, which is a downside, we can manage many things. The UI is not very intuitive and could be better. However, we manage all the configurations through code, which is easy to maintain. It has extensive anomaly detection capabilities, so the traffic is classified into several categories where thresholds can be defined and customized based on false positives and false negatives. This is advantageous because you do not need to tweak it very often. Once you set it up, an audit once a quarter would suffice. Because The Fastly Next-Gen WAF (powered by Signal Sciences) is API-driven, we have integrations with the CI/CD pipeline through GitHub Actions, making it easy to integrate.

Quotes from Members

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

Pros

"No valuable quote was provided in the review."
"Our environment is safe due in part to behavior and anomaly detection, which provides IP-based, subnet-based, and country-based blocking."
"Radware Cloud WAF Service has reduced our false positive rate by more than 50% and is one of the best tools as we can easily block and reduce our alerts through IP blocking."
"Geo-blocking is one of the most valuable features we use the most; most of our users are in North, Central, and South America, so we use geo-blocking to block access from other countries."
"From a financial point of view, we no longer need to appropriate more horsepower to our backend web servers constantly to service these requests because Cloud WAF is preventing malicious bots from accessing our web page. It reduced the load on our backend."
"Overall, the Radware Cloud WAF Service has helped reduce our false positives significantly, reducing our bandwidth cost, and we can say it has halved the bandwidth cost by blocking true positive attack traffic."
"Radware Cloud WAF Service is user-friendly and easy to deploy."
"Radware Cloud WAF Service has several valuable features, with good support and a user-friendly GUI."
"Because The Fastly Next-Gen WAF (powered by Signal Sciences) is API-driven, we have integrations with the CI/CD pipeline through GitHub Actions, making it easy to integrate."
"The product's most valuable feature is its ability to set up the rules easily."
"When configuring a web application firewall using Signal Sciences, we configure a rule whereby no one except a few people can access the application."
"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."
 

Cons

"In Radware Cloud WAF Service, areas for improvement include behavioral and anomaly detection, where it could be better by reducing false positives. The"
"Overall, I would rate it a seven out of ten because there are some issues in the cloud part, where it lags."
"To make the solution a ten out of ten, we need improvements in AI capabilities, which Radware Cloud WAF Service currently has yet it still has room for integration."
"The implementation was hit or miss for the first few months. They did some tweaking and, since then, there have been no problems."
"The dashboard of Radware Cloud WAF Service has room for improvement. While it works effectively, it can feel complex and might need some initial guidance, but once users become familiar with it, the operation becomes smooth."
"I'm not sure about how much historical traffic data we can access. Knowing the ability to view traffic from six months back would be beneficial for audit and compliance purposes, especially if an attack happens on an application."
"We received a notification where Radware Cloud WAF Service stopped working properly in our cloud environment without any prior notification."
"The dashboard needs improvement as some users find it complex."
"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."
"The UI is not very intuitive and could be better."
"Even if we create some custom rules, Signal Sciences cannot capture some of the malicious traffic."
 

Pricing and Cost Advice

"The pricing is fair; it's neither particularly cheap nor expensive."
"The pricing is fair."
"The price is a bulk average."
"For the current market, the price for Radware Cloud WAF Service is exactly where we want it to be."
"We are paying $20,000 annually for six licenses that provide basic WAF functionality."
"When compared to Akamai and F5, Radware's pricing and licensing are highly competitive."
"I am not directly involved in pricing and setup cost discussions, but it seems that Radware offers a more cost-effective solution compared to F5. It is considered a good value for our budget."
"Radware Cloud WAF Service falls within a mid-range price bracket compared to other web application firewall solutions."
"The product has an affordable cost."
"The pricing is 50% less than Akamai."
"Signal Sciences is pretty cheap compared to other solutions."
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Top Industries

By visitors reading reviews
Manufacturing Company
15%
Energy/Utilities Company
15%
Financial Services Firm
14%
Computer Software Company
7%
Manufacturing Company
9%
Comms Service Provider
9%
Retailer
9%
Financial Services Firm
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise16
Large Enterprise49
No data available
 

Questions from the Community

What needs improvement with Radware Cloud WAF Service?
The main area for improvement is the flexibility of the security rule engine. Compared with some other vendors, there are fewer available conditions and limited support for complex rule logic. For ...
What is your primary use case for Radware Cloud WAF Service?
The product is used for the protection of our financial institution’s web applications and digital assets against DDoS attacks and other OWASP threats.
What is your experience regarding pricing and costs for Signal Sciences?
The pricing is very competitive compared to other providers. The pricing is definitely a factor in our decision-making process.
What needs improvement with Signal Sciences?
We do use it, but the UI can be improved as we mostly work through the CI/CD. It provides support, but sometimes it is hard to navigate unless you are very familiar with it.
What is your primary use case for Signal Sciences?
The CDN is for caching and The Fastly Next-Gen WAF (powered by Signal Sciences) is for protecting the servers from malicious traffic. They both perform different jobs and serve different purposes, ...
 

Also Known As

No data available
Signal Sciences Next-Gen WAF, Signal Sciences RASP
 

Overview

 

Sample Customers

Information Not Available
Chef, Adobe, Datadog, Etsy, GrubHub, Vimeo, SendGrid, Under Armour, Duo, AppNexus
Find out what your peers are saying about Radware Cloud WAF Service vs. The Fastly Next-Gen WAF (powered by Signal Sciences) and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.