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Microsoft Azure Application Gateway 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) (12th)
Microsoft Azure Application...
Average Rating
7.4
Reviews Sentiment
6.8
Number of Reviews
49
Ranking in other categories
Application Delivery Controllers (ADC) (3rd), Web Application Firewall (WAF) (3rd)
The Fastly Next-Gen WAF (po...
Average Rating
7.6
Reviews Sentiment
4.8
Number of Reviews
4
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.
DevenderVannela - PeerSpot reviewer
Ensures efficient traffic management and robust security while simplifying complex configurations
The best features for Microsoft Azure Application Gateway basically protect your application and provide security-related features and also divert the traffic to different instances of your application. I have used URL-based routing, which helps manage traffic efficiency. It is a bit hard to manage in the long run, but it does provide value. I have used the gateway's Web Application Firewall feature, which enhances security as it is the first entry point to your network from the outside world. It helps protect against unwanted requests and other threats that can be configured. Regarding the integration with Azure Active Directory, it helps with authentication processes to configure all the users or the groups. The monitoring capabilities on Azure provide insight into application performance and potential threats because monitoring comes with many products. On Azure, you have Azure Monitor itself to help you monitor the application by collecting data. You have Application Insights and the logging workspace on Azure. By combining these three, you can implement monitoring solutions on Azure applications. Auto-scaling is important because it helps in resource management for customers. Scaling is one of the key features of moving to cloud for any customer. During peak times or special events, such as retail site promotions, user load increases significantly. To address this, based on the number of incoming requests or server capacities such as CPU and memory, you can automatically identify these peak scenarios and configure either scaling up or down automatically based on certain parameters.
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

"The solution provides good load balancing and protection against DDoS attacks."
"The simplicity of the overall dashboard makes it a great product for a user like me who has less understanding of the internet than a developer or other more technical people. It gives me peace of mind. I also love the easy customization of the Page Rules."
"The overall experience with Cloudflare is positive, with a rating of eight out of ten."
"It is a fast and secure DNS."
"It's very user-friendly."
"The most valuable feature of Cloudflare is the GUI. You are able to control the solution very well through the interface. There is a lot of functionality that is embedded in the service."
"I like Cloudflare's application gateway and DDoS protection."
"Smaller businesses have seen great ROI due to the low investment and strong performance."
"Load balancing and web application firewall features are the most valuable."
"The production is a valuable feature."
"It does an excellent job of load balancing."
"The tool is easy to use and quite flexible. It has policy management features as well. The solution screens all traffic to our web applications before passing it to the application. We recently tested it on one of our poorly developed applications, and the upgrade gave us a 100% result based on our tests. It's very effective as a security measure, and people can detect threats even through the web application."
"We find it valuable because it is compatible with our existing Azure solution."
"The tool helps manage microservices by providing developers with a platform to conduct tests and assessments on the web application. The custom domain option is one of the most valuable features I've found. This feature is incredibly helpful for the end-users of the web application. With the custom domain feature, you can change the lengthy link to a shorter, more memorable one. For example, instead of using a lengthy default link, you can customize it to something like imail.com, which is much easier to remember and share."
"Azure Application Gateway's most valuable feature is ease of use. The configuration is straightforward. It isn't difficult to adjust the size of your instances in the settings. You can do that with a few clicks, and the configuration file is the same way. You can also set rules and policies with minimal time and effort."
"It has a filter available, although we are not currently using it because it is not part of our requirements. But it is a good option and when it becomes part of our requirements we will definitely use it."
"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."
"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."
 

Cons

"Integration involving API with other products could be more user-friendly."
"For the free and Pro plans, Cloudflare could use a simple bot to provide information to users. This would improve support, especially for less advanced users who utilize the free components."
"It would be good if Cloudflare could have more servers for better traffic routing or an increase in the traffic routed. This is what I'd like to improve in Cloudflare."
"The documentation could improve for Cloudflare DNS."
"I would like Cloudflare to offer a dedicated account manager for large enterprise clients like us."
"Technical support is lacking."
"Areas like how assessment, discovery, and payload are dealt with and how it all comes into your organization can be considered when trying to make suggestions to Cloudflare for improvements."
"Cloudflare does not have an on-premise solution. If they had different approaches they could be better suited to accommodate more customers, such as on-premise and hybrid deployments. For example, hybrid deployments would be useful where you could move the traffic from the enterprise to the cloud."
"The solution should provide more security for certificate-based services so that we can implement more security on that."
"The product could be easier to use and implement."
"The tool is a pain to deal with when it comes to the area of configuration."
"The configuration is very specific right now and needs to be much more flexible."
"The solution can sometimes feel a little cumbersome unless you're a professional infrastructure person."
"Microsoft Azure Application Gateway is not scalable."
"Needs easier integration with the existing SIAM."
"Microsoft Azure Application Gateway has room for improvement because it offers many features, but its configuration is a bit difficult, at least from the developer point of view."
"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."
"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 is expensive when compared to other products but offers unlimited bandwidth."
"Cloudflare's pricing is not much higher and is good for middle-level organizations."
"We are using the free tier of the solution."
"That is one of the great features. I was able to access the majority of the features and services for free."
"The product's pricing is cheap."
"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."
"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."
"I think the pricing is competitive. I think as far as licensing is concerned it's pretty straightforward because it's based on domain. It's just that sometimes domains could be tricky with some customers."
"It is an expensive solution. We have an enterprise agreement, it is monthly."
"There is a need to pay a fixed price per month to use the product. There are no additional payments to be made to Microsoft apart from the charges paid towards the monthly licensing costs attached to the solution."
"The solution is cheaper than Imperva. I rate it four to five out of ten."
"The cost is not an issue."
"Microsoft Azure Application Gateway is a pretty affordable product. My company needs to make yearly payments towards the licensing costs of the solution. The additional costs apart from the licensing costs of the solution vary."
"Between v1 and v2, there is a lot of change in the pricing. It is very costly compared to AWS."
"I would rate the pricing a three out of ten, with ten being cheap and one being expensive."
"It is not expensive."
"The product has an affordable cost."
"Signal Sciences is pretty cheap compared to other solutions."
"The pricing is 50% less than Akamai."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Computer Software Company
15%
Financial Services Firm
11%
Government
8%
Manufacturing Company
8%
Computer Software Company
12%
Manufacturing Company
11%
Retailer
11%
Financial Services Firm
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise6
Large Enterprise23
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's the difference between Azure Front Door and Application Gateway?
We found Azure Front Door to be easily scaled and very stable. The implementation is very fast and Microsoft provides...
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 Microsoft Azure Application Gateway?
Application Gateway automatically redirects unwanted users and takes care of the security aspect. It also handles the...
What do you like most about Signal Sciences?
The product's most valuable feature is its ability to set up the rules easily.
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...
 

Also Known As

Cloudflare DNS
Azure Application Gateway, MS Azure Application Gateway
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.
Lilly, AccuWeather, AIRFRANCE, Honeywell
Chef, Adobe, Datadog, Etsy, GrubHub, Vimeo, SendGrid, Under Armour, Duo, AppNexus
Find out what your peers are saying about Microsoft Azure Application Gateway vs. The Fastly Next-Gen WAF (powered by Signal Sciences) and other solutions. Updated: September 2025.
868,759 professionals have used our research since 2012.