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F5 Distributed Cloud Services vs The Fastly Next-Gen WAF (powered by Signal Sciences) comparison

 

Comparison Buyer's Guide

Executive Summary

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

F5 Distributed Cloud Services
Ranking in Web Application Firewall (WAF)
16th
Average Rating
8.8
Reviews Sentiment
6.0
Number of Reviews
6
Ranking in other categories
CDN (6th), API Security (8th)
The Fastly Next-Gen WAF (po...
Ranking in Web Application Firewall (WAF)
33rd
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 August 2026, in the Web Application Firewall (WAF) category, the mindshare of F5 Distributed Cloud Services is 2.0%, up from 1.0% compared to the previous year. The mindshare of The Fastly Next-Gen WAF (powered by Signal Sciences) is 1.1%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
F5 Distributed Cloud Services2.0%
The Fastly Next-Gen WAF (powered by Signal Sciences)1.1%
Other96.9%
Web Application Firewall (WAF)
 

Featured Reviews

Mohan Janarthanan - PeerSpot reviewer
Associate Vice President at Novac Technology Solutions
Centralized security has protected APIs and optimized multi‑cloud traffic management
F5 Distributed Cloud Services has been used for two years for DDoS protection, and there is a particular feature called API protection. Within API protection, there is malicious user mitigation, which is one particular technology that has been implemented. This is a kind of advanced bot attack prevention. Malicious user mitigation is an AI/ML-based technology that was introduced by the F5 team, and this particular MUG protects rate limiting. If some users are having anomaly detection or someone is trying to do a bot attack, it will create a CAPTCHA challenge for that particular user alone and not for all users. For example, if someone is trying to act as a rogue, it will create a CAPTCHA challenge in the backend system on that particular system, so they cannot try again and again at the same time. It is for a concurrent session, and it will give the CAPTCHA challenge. This MUG, malicious user mitigation, prevents bot attacks. F5 Distributed Cloud Services includes the real-time intelligence feature, which helps with threat response strategies from a threat intelligence perspective. For example, if there are geo-restrictions or geo-based restrictions, sometimes people may come in through proxy-based servers, and it will prevent that. The load balancing feature optimizes application performance. Observability is the basic piece where F5 got introduced. This observability piece provides end-to-end visibility on the application performance. It gives complete end-to-end visibility across network latency and application performance issues. Sometimes when it is getting more than 200 pages, it throws errors such as 300, 400, or whatever has been configured, including 500 errors. F5 Distributed Cloud Services has helped improve traffic management efficiency. Most applications are hosted in the Check Point and F5 firewall, F5 web application firewall, where applications and traffic management can be accessed in a single dashboard. Automated threat detection is a basic feature of F5 Distributed Cloud Services meant for that purpose. There are two scenarios with automated threat detection, which is provided by F5. It is a completely machine learning solution that came from the bot defense, and it automatically protects against sophisticated attacks.
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

"Technical support from F5 is good compared to Cisco and HP."
"I appreciate the UI of F5 Distributed Cloud Services and the backend cost, alongside the actual value proposition that they provide with the load balancer, which is excellent."
"In a multi-cloud or distributed cloud, there are many protection possibilities from data to web application or API protection, including bot mitigation."
"F5 Distributed Cloud Services is the market leader in load balancers and manages traffic really well."
"The main benefit is Web App Security, offering a complete security package from DDoS to web application firewall, API protection, and bot mitigation."
"Elastic environments are the most valuable features because I can pull these apps and migrate the on-premises environment to the Distributed Cloud environment, and this capability is very strong and the security regarding the apps is really very powerful."
"F5 Distributed Cloud Services provides a single unified console for security operations, network operations, and DevOps across all environments."
"F5 is known for being the best load balancer in the market. Customers with an existing module can easily adopt additional modules without investing in new hardware."
"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."
"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."
"The product's most valuable feature is its ability to set up the rules easily."
 

Cons

"One area where F5 Distributed Cloud Services can be improved is in API security, which can be enhanced."
"The worst experience is that with so many solutions available, it is very complicated to know all of the solution modules, and the offers from F5 Distributed Cloud Services are vast."
"The pricing could be adjusted to better meet the needs of typical customers in regions like Poland, where the product is considered too expensive."
"The main issue is integration with other parts or products of F5, like on-premise WAF. There are some problems, mainly from the perspective of implementation and customer expectations, which sometimes differ from reality."
"For small players, it is completely not worth it."
"Last year there was a downtime of 30 minutes across the cloud distributed console, and that was the only impact observed."
"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."
"Fastly don't support caching for China users. That's the only feature lacking compared to Akamai."
"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."
 

Pricing and Cost Advice

Information not available
"The pricing is 50% less than Akamai."
"The product has an affordable cost."
"Signal Sciences is pretty cheap compared to other solutions."
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Top Industries

By visitors reading reviews
Construction Company
11%
Financial Services Firm
10%
Computer Software Company
7%
Outsourcing Company
7%
Manufacturing Company
10%
Retailer
9%
Financial Services Firm
8%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise2
Large Enterprise5
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for F5 Distributed Cloud Services?
F5 Distributed Cloud Services is affordable. I think it is very affordable. I do not think it is expensive.
What needs improvement with F5 Distributed Cloud Services?
One area where F5 Distributed Cloud Services can be improved is in API security, which can be enhanced.Specifically, the confidence level on API security that F5 Distributed Cloud Services provides...
What is your primary use case for F5 Distributed Cloud Services?
My main use case for F5 Distributed Cloud Services is WAF protection.I am using F5 Distributed Cloud Services primarily for securing my infrastructure with layer 7 protection, which F5 provides. Th...
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 F5 Distributed Cloud Services vs. The Fastly Next-Gen WAF (powered by Signal Sciences) and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.