Name: Fastly Next-Gen WAF
Rating: 4.8 (535 reviews)

Overview

Product Information on Fastly Next-Gen WAF

Updated 13th October 2025

What is Fastly Next-Gen WAF?

Fastly Next-Gen WAF is a software designed to provide web application security through the detection and mitigation of threats such as SQL injection, cross-site scripting, and other automated attacks. The software leverages a combination of rule-based and behavioral analysis techniques to identify potentially harmful requests and prevent unauthorized access or data breaches. It integrates with content delivery platforms to offer real-time protection and adapts to evolving threat landscapes without requiring significant manual intervention. Fastly Next-Gen WAF addresses business challenges related to application uptime, data integrity, and regulatory compliance, aiming to reduce risks associated with web vulnerabilities and application-level threats for organizations managing online services.

Overall experience with Fastly Next-Gen WAF

SITE RELIABILITY ENGINEER

Gov't/PS/ED <5,000 Employees, Education

FAVORABLE

“Fastly's Next-Gen WAF: High Performance Security at the Edge”

5.0

Aug 5, 2025

Fastly NGWAF offers real time threat detection and mitigation which is effective for protecting your web applications from threats. Its Integration with edge cloud platform enhances the content delivery and security providing dual benefit. The UI is intuitive, making it easy to manage rules and view reports.

Director, Information Security

50M - 250M USD, IT Services

CRITICAL

“Works Well and Light on Resources, Opacity in Rule Details”

3.0

May 13, 2025

The product works as designed, and on the few occasions we've needed support, they have been responsive.

Badges

Gartner Peer Insights recognizes vendors who meet or exceed both the market average Overall Experience and the market average User Interest and Adoption score through a Customers’ Choice distinction.

For Market:
Cloud Web Application and API Protection

About Company

Company Description

Fastly is a company that specializes in developing an edge cloud platform. This platform is designed to enhance the effectiveness and strength of websites and applications. Notable users of this platform include social media, e-commerce, news media and gaming sites. Through their platform, Fastly aims to facilitate improved web and app performance.

Company Details

Company type

Public

Year Founded

2011

Head office location

San Francisco, United States

Number of employees

501 - 1000

Website

http://www.fastly.com

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Key Insights

A Snapshot of What Matters - Based on Validated User Reviews

User Sentiment About Fastly Next-Gen WAF

Reviewer Insights for: Fastly Next-Gen WAF

Deciding Factors: Fastly Next-Gen WAF Vs. Market Average

Performance of Fastly Next-Gen WAF Across Market Features

Fastly Next-Gen WAF Likes & Dislikes

Could be the adaptability and customisability of the WAF which allows users to configure rules and policies to their specific needs. The performance and speed since it is running on Fastly global network which ensures that implementing these measures does not impact the site performance.

It performs it's function well, does not consume a lot of computing resources, and is regularly updated with filtering rules based on threat intelligence to keep the protections up-to-date.

Insights/ Metrics available from the tool. JA4 blocking capability Ability to automate va terraform

Could bit difficult to do the initial setup depending on the environment as it offers different installation methods. Also it comes with a price as it offers premium and advanced protection compare to other WAF solutions.

Some of the rules are opaque to the end-user, you don't exactly know what signals the rules are looking for, this makes it a little harder to evaluate whether you want to enable/use them.

Initially lack of customisation for the captchas (but this has since been resolved). Some obscurity around bot classification/ rules (but also common across similar vendors) Still feels like there's some segregation between signal sciences and fastly platform - would be nice for this to be further unified (though it's already so much better than 2 years ago).

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Peer Discussions

Fastly Next-Gen WAF Reviews and Ratings

4.8

(535 Ratings)

Rating Distribution

5 Star: 91%
4 Star: 9%
3 Star: 1%
2 Star: 0%
1 Star: 0%

Customer Experience

Evaluation & Contracting

4.8

Integration & Deployment

4.8

Service & Support

4.9

Product Capabilities

4.8

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Reviewer's Job Function

SITE RELIABILITY ENGINEER
Gov't/PS/Ed
Education
Review Source
Fastly's Next-Gen WAF: High Performance Security at the Edge
5.0
Aug 5, 2025
Fastly NGWAF offers real time threat detection and mitigation which is effective for protecting your web applications from threats. Its Integration with edge cloud platform enhances the content delivery and security providing dual benefit. The UI is intuitive, making it easy to manage rules and view reports.
Chief Information Security Officer
50M-1B USD
Banking
Review Source
Valuable automation and defensive capabilities.
5.0
Jul 29, 2025
Fastly were easy to work with during the procurement/ RFP process and responded clearly to all requirements/ questions. The product itself met all of our functional requirements and has been easy to work with and maintain. The product itself is effective in detecting and protecting against web attacks. The team we've worked with at Fastly have been incredible. There were a few challenges early on from a commercial perspective but the team responded to feedback effectively and the collaboration since has been great.
DEVSECOPS PRINCIPAL ENGINEER
1B-10B USD
Retail
Review Source
Successful migration of Fastly Legacy WAF to Fastly Next-Gen WAF
5.0
Jul 28, 2025
We went from the Fastly Legacy WAF to the new Platform and the whole migration went very smoothly. We had a Fastly security architect assigned to the project who really helped with the preparation work, implementation and testing of Fastly's Next-Gen WAF
IT Security & Risk Management Associate
1B-10B USD
Software
Review Source
Integration of Performance and Security Enhances Daily Security Operations Experience
5.0
Jul 24, 2025
Our overall experience with Fastly has been outstanding! Their customer service, technical assistance, and the robustness of their tools have been instrumental in helping us maintain strong edge security. The platform is intuitive and powerful, allowing us to respond quickly to threats and fine-tune our security posture with confidence. Fastly's team has consistently gone above and beyond to support our needs, making them a trusted partner in our security operations. Highly recommend for organizations looking for reliable and responsive edge solutions.
Technology Director
1B-10B USD
Media
Review Source
An extremely developer friendly and focussed edge delivery, security and compute platform
5.0
Jul 29, 2025
Fastly has been a long-term, reliable partner to our firm and has been evolving the product to solve our emerging challenges. Working with the Fastly team has always been a pleasure and their technology offering is top shelf, making our teams more productive and providing capabilities for our systems that enable us to provide a seamless experience to our customers.

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Recommended Gartner Insights

Market Guide for Cloud Web Application and API Protection