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NGINX App Protect 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 Web Application ...
Sponsored
Ranking in Web Application Firewall (WAF)
6th
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
26
Ranking in other categories
No ranking in other categories
NGINX App Protect
Ranking in Web Application Firewall (WAF)
19th
Average Rating
8.2
Reviews Sentiment
6.4
Number of Reviews
27
Ranking in other categories
Container Security (28th), API Security (9th)
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 Cloudflare Web Application Firewall is 3.8%, down from 5.8% compared to the previous year. The mindshare of NGINX App Protect is 2.1%, up from 1.5% 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 (%)
Cloudflare Web Application Firewall3.8%
NGINX App Protect2.1%
The Fastly Next-Gen WAF (powered by Signal Sciences)1.1%
Other93.0%
Web Application Firewall (WAF)
 

Featured Reviews

DB
CTO at PlayNirvana
Advanced security reporting has protected high-traffic betting platforms from constant attacks
I don't see room for improvement to Cloudflare Web Application Firewall. One thing I don't know much about because we have a dedicated IT team for that, and I'm not involved with Cloudflare much anymore. But if I were to compare them to F5, I would like to see more features that F5 offers. F5 has an option to bring the whole infrastructure, the whole WAF and all their packages, Bot Management, and everything else on your infrastructure. You need to install certain services from their side, and then you can choose if you would like requests to hit your servers immediately or if requests need to be proxied through F5 backbone. That would be a nice addition because we have 90% of the traffic as legit traffic coming from whitelisted servers. If it comes from whitelisted servers, I don't need to go every request through the backbone; I could easily just IP whitelist everything. Then I could maybe have Bot Management on my infrastructure that drastically reduces the price of Cloudflare. I would like to see Push CDN more improved in the next release of Cloudflare Web Application Firewall. And maybe something similar to Pushpin that Fastly has, which is an option where you can push messages that then can be scaled globally over the network. From our perspective, if we have a listener that listens for stock updates, I would just need to have one processor that pushes those updates to the Cloudflare API, and then Cloudflare would broadcast that message to all listeners. Cloudflare will check the order of the message, and if you, as a customer, are not connected or have some kind of network issue, when you reconnect, you will receive the latest state and missing updates.
Valerio Guaglianone - PeerSpot reviewer
Dev Ops Engineer at adesso AG
Long-term web protection has supported reliable traffic management but needs a simpler interface
NGINX App Protect is a good product. I have used both versions from F5 -also the free version- (I mean the NGINX/NGINX One/App Protect free trial period), and I think it is a good product. It's stable, affordable, and easy to manage. NGINX App Protect is a comprehensive security solution that combines advanced WAF, DoS protection, API security, and DevSecOps automation in a lightweight, scalable package ideal for modern cloud-native architectures. The adaptive machine learning capabilities are truly commendable, as the solution can establish traffic baselines and detect anomalies in real time. It automatically adjusts security policies, minimizing the need for manual intervention and reducing false positives. Additionally, it supports scalable deployment across diverse environments, including on-premises, cloud, Kubernetes, and containers, offering both flexibility and scalability I have experience with the web server, F5 load balancer, and similar products provided by Ergon, for eg. the web application firewall and the Microgateway for K8S. I'm also familiar with F5 BIG-IP products.
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

"This is a good product; it's reliable and scales well."
"We extensively use the solution every day. The solution is very stable; we haven’t seen any glitches."
"The integration of Cloudflare with Cloud Suite is its most valuable feature."
"It is configurable via API."
"We like that there's load balancing, firewall capabilities, DDoS protection, et cetera, all covered by Cloudflare."
"The product has improved our security posture by blocking bad actors."
"There is a huge signature repository"
"Very glad the WAF rulesets works out of box, and requires very little tuning or maintenance."
"The initial setup was simple and took three to four days."
"NGINX App Protect has positively impacted my organization by adding an additional layer of security on top of my infrastructure layer, which I consider quite helpful."
"Based on my experience, this solution is better than the other choices on the market."
"The most valuable feature of NGINX App Protect is its open source."
"NGINX App Protect is stable."
"The most valuable feature is that there is a link in the system that will help to analyze the security of an application when something abnormal is found."
"The tool's most valuable feature is the OWASP certification. Additionally, the tool's ability to enforce strong passwords and OTP within minutes is impressive. With its analytics and recommendations, it is a very good solution."
"The stability of the product is very impressive since it handles 60,000 to 70,000 requests or transactions per second."
"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."
"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."
"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

"Its stability could be better."
"The user interface is very simple and straightforward, but users need knowledge about DNS to accomplish tasks."
"If they add logs history within the Cloudflare offering, that would be a great benefit."
"The solution's learning curve can still be further reduced"
"There could be an option to duplicate the cluster to maintain the consistency of rules."
"The learning curve was steep initially."
"Cloudflare should update the version of the ModSecurity core rule set that they run on."
"I have experienced some difficulties with Cloudflare's support as a customer based in India."
"The integration of NGINX App Protect could improve."
"The product's user interface is an area with shortcomings as it can be quite confusing for users, making it an area where improvements are required."
"The setup of NGINX App Protect is complex. The full process took one week to complete. Additionally, we had to change the network infrastructure platform which took one month."
"They have a messy license model; it's not really made for microservice architecture. It's getting expensive really, really fast."
"NGINX App Protect would be improved with integration with Shape and F5 WAF, which would make it easy for users to manage all their web application security with a single solution."
"Right now, the tool doesn't provide an option revolving around update feeds, specifically the signature update option in the UI."
"The GUI and web GUI configuration could be improved to be easier to manage and use."
"I think NGINX App Protect could be improved by having it come out of the box with NGINX."
"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 solution's pricing option needs to be more transparent for enterprise clients."
"The pricing model is very straightforward compared to the competition. You just pay per month for the product and usage."
"What's my experience with pricing, setup cost, and licensing? I believe the pricing is not the best, but it's reasonable and acceptable. We also use the McAfee system in parallel. In terms of pricing, its okay - not great, but not bad either. It falls in the middle, which is acceptable. In terms of support licensing, last time, we were searching for a solution, and we considered products from resellers rather than directly from the cloud provider. However, the pricing we encountered was exceptionally high. As a result, we are inclined to select support from the reseller."
"It is not too pricey."
"Cloudflare offers different types of subscriptions for businesses, enterprises, and personal users, and the pricing is negotiable."
"The solution is expensive."
"The annual licensing fee is $10,000 USD."
"We pay $210 per month for CloudFlare WAF."
"There are no additional fees."
"The price of NGINX App Protect is not much different from the products that fall under the leader category of Gartner Magic Quadrant."
"Our licensing costs are about $40,000 a year."
"The solution's price is reasonable."
"There is a monthly or annual subscription to use NGINX App Protect. There are not any additional costs to the subscription."
"Really understand the licensing model, because we underestimated that."
"The product's price is high."
"The licensing fees for this solution are pretty expensive for what it does, but there is no alternative."
"Signal Sciences is pretty cheap compared to other solutions."
"The product has an affordable cost."
"The pricing is 50% less than Akamai."
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Top Industries

By visitors reading reviews
Construction Company
17%
Comms Service Provider
9%
Financial Services Firm
9%
Outsourcing Company
7%
Comms Service Provider
13%
Financial Services Firm
12%
Computer Software Company
8%
Construction Company
8%
Retailer
10%
Manufacturing Company
10%
Financial Services Firm
9%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise6
Large Enterprise6
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise7
Large Enterprise14
No data available
 

Questions from the Community

What needs improvement with Cloudflare Web Application Firewall?
I don't see room for improvement to Cloudflare Web Application Firewall. One thing I don't know much about because we...
What is your primary use case for Cloudflare Web Application Firewall?
We are using Cloudflare Web Application Firewall's advanced reporting and analytics tools with their Zero Trust, so e...
What is your experience regarding pricing and costs for NGINX App Protect?
I will not be able to answer about my experience with pricing, setup cost, and licensing for NGINX App Protect, as so...
What needs improvement with NGINX App Protect?
I did not face any issues with NGINX App Protect. The only issue that we had is that someone was trying to install th...
What is your primary use case for NGINX App Protect?
I have been dealing with NGINX App Protect and the WAF policy. I usually recommend NGINX App Protect for banking and ...
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-makin...
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 i...
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 ma...
 

Also Known As

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

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
Information Not Available
Chef, Adobe, Datadog, Etsy, GrubHub, Vimeo, SendGrid, Under Armour, Duo, AppNexus
Find out what your peers are saying about NGINX App Protect vs. The Fastly Next-Gen WAF (powered by Signal Sciences) and other solutions. Updated: June 2026.
908,800 professionals have used our research since 2012.