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Azure Front Door 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
8.4
Reviews Sentiment
7.2
Number of Reviews
74
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (14th)
Azure Front Door
Average Rating
8.8
Reviews Sentiment
7.6
Number of Reviews
14
Ranking in other categories
CDN (2nd), Web Application Firewall (WAF) (8th), Microsoft Security Suite (12th)
The Fastly Next-Gen WAF (po...
Average Rating
7.6
Reviews Sentiment
7.1
Number of Reviews
3
Ranking in other categories
Web Application Firewall (WAF) (25th)
 

Featured Reviews

Spencer Malmad - PeerSpot reviewer
It's easy to set up because you point the DNS to it, and it's working in under 15 minutes
Cloudflare is highly scalable. Cloudflare is a system with a web portal that the end users like me see. It's a console where we can adjust the DNS, caching, and security features all in that console. Cloudflare owns thousands of servers across the world that cache the data. It's a powerful solution. When clients sign up for Cloudflare, they're getting this monster content delivery network, security, and a web application firewall in one. It's all rolled into one, and it's massive. Unless you have your website hosted on a massive hosting provider, there's no way that you can deliver the amount of data that Cloudflare can provide to the end users. If you have static content, there's no way that you can ever match what Cloudflare can do. Obviously, there are competitors to Cloudflare that do the same, but I'm saying other types of solutions. Let's say you go with F5. Great, that's on-prem. That's in your colo. You can't deliver as much data to the internet as you can with a CDN. You don't have to spend $20,000 on a net scaler, F5, or whatever Cisco's selling now. You don't have to buy that. You pay them $50 a month or $150 a month. It's totally worth it because even in five years, you'll never get the performance value, not just the actual ROI. You have to consider how much throughput you can get with Cloudflare.
Thomas Zebar - PeerSpot reviewer
Provides great security with a good application firewall
The initial setup is straightforward. If you want to use the portal, CLI, or PowerShare, or you want to use automation data for one month, it's straightforward. Even when it comes to operational maintenance, it's pretty easy and straightforward. Microsoft has done a great job on that front. Maintenance generally requires someone who is a cloud administrator or similar to maintain services in general, with Front Door a small piece of a larger maintenance requirement. There's not a lot to manage, the configuration is simple. I encourage people to document the configuration and infrastructure as well as disaster recovery in case anything happens.
Archana Heeralal - PeerSpot reviewer
A good solution to implement web application firewall for applications
There are some lags in Signal Sciences for the web application firewalls. Even if we create some custom rules, Signal Sciences cannot capture some of the malicious traffic. There is a little bit of complexity with custom rules that should be removed. Signal Sciences should add a feature called rate limiting with multiple options, wherein I can create a rate limiting based on the cookie request or the IP.

Quotes from Members

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

Pros

"Cloudflare DNS is widely used, and it's good for websites. If we use Cloudflare DNS and update one record, it updates in their office instantly."
"The most valuable feature is its usability."
"It is a fast and secure DNS."
"DDoS attacks target unprotected machines. Cloudflare detects and stops these attacks using internal systems. It identifies incoming DDoS attacks, issuing challenges or blocking them immediately."
"The solution provides good load balancing and protection against DDoS attacks."
"The most valuable feature of the solution is external DNS. It is also very secure. They have their own main server and once you configure it, the product takes care of everything. There are no issues in resolving IPs and low latency is also present."
"The most valuable feature of Cloudflare DNS is its global reach and it is always evolving."
"The most valuable feature is its usability."
"The web application firewall is a great feature."
"The most valuable feature is that I can have CDN and load-balancing capabilities in a single service instead of managing two separate tools."
"Rules Engine is a valuable feature."
"The tool is easy to use for beginners."
"The price is one of the most important aspects of the product. It's quite affordable."
"The solution is good."
"I am impressed with the tool's integrations."
"Azure Front Door provides DDoS protection and features related to WAF."
"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

"There might be helpful if there was some web application firewall feature."
"There could be more courses with engineers. I like e-learning, however, having a specialist in a classroom is more comfortable for me."
"It would be helpful if the solution could continue evolving to compete with the other solutions on the market."
"Cloudflare's free plan is limited to 5,000 records for their free plan. They should increase that. For example, if I create a domain called abc.com and a subdomain called a.abc.com, my record count will be two. I can make a maximum of 5,000 subdomains. However, if we use our own DNS hosted on another provider, there is no limit. Their free plan also lacks name server customization."
"The solution could be more user-friendly."
"There could be more courses with engineers. I like e-learning, however, having a specialist in a classroom is more comfortable for me."
"The integration of LLMs on the dashboard is something that is needed in the tool."
"Cloudflare should add more documentation and pricing to the cloud version."
"The user interface needs improvement as it is difficult to create the mapping to link the problem with your private address sources."
"In the tool, there needs to be a good amount of monitoring in the area of health probes to capture in front of what is happening."
"We should be able to use Front Door defenders with multiple cloud vendors. Currently, they can be used only with the Azure cloud. Azure Front Door should also be able to do global load balancing and provide internal front door services. Microsoft should clearly define what Traffic Manager, Application Gateway, and Azure Front Door products do. These are similar products, and people get confused between these products."
"The product's features are limited compared to Cloudflare. The tool also doesn't work well in a hybrid environment. I would like to see a way to add personalized APIs in the system."
"There's a limitation on the amount of global rules we can add."
"This is a relatively expensive solution."
"There could be improvements regarding its pricing for large-scale projects."
"It lacks sufficient functionality."
"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."
"Even if we create some custom rules, Signal Sciences cannot capture some of the malicious traffic."
 

Pricing and Cost Advice

"The product's pricing is cheap."
"It's a premium model. You can start at zero and work your way up to the enterprise model, which has a very high pricing level."
"The product's pricing is minimal compared to other products."
"There are no additional costs beyond the standard licensing fees."
"We are using the free tier of the solution."
"I give the price a five out of ten."
"We are using the free version."
"The solution has many features but there are ones that you need to pay for. Sometimes you have to find out which is available for free and which you have to pay for."
"It is on a pay-as-you-go basis."
"The product is expensive."
"The pricing of the solution is good."
"The solution is a bit expensive."
"The transition to the premium tier has led to increased costs, making it more expensive than the classic tier."
"Considering the standard licensing of the tool, even though we have not checked the billing as of now, it might not be very costly."
"The pricing is 50% less than Akamai."
"Signal Sciences is pretty cheap compared to other solutions."
"The product has an affordable cost."
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Top Industries

By visitors reading reviews
Educational Organization
21%
Computer Software Company
13%
Comms Service Provider
9%
Financial Services Firm
8%
Computer Software Company
16%
Financial Services Firm
14%
Manufacturing Company
8%
Government
7%
Educational Organization
20%
Computer Software Company
12%
Financial Services Firm
10%
Manufacturing Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
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...
What is your experience regarding pricing and costs for Azure Front Door?
Azure Front Door is cheaper for small projects, companies, or applications compared to using separate tools.
What do you like most about Signal Sciences?
The product's most valuable feature is its ability to set up the rules easily.
What needs improvement with Signal Sciences?
Fastly don't support caching for China users. That's the only feature lacking compared to Akamai.
 

Also Known As

Cloudflare DNS
Azure Front-Door
Signal Sciences Next-Gen WAF, Signal Sciences RASP
 

Overview

 

Sample Customers

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Find out what your peers are saying about Azure Front Door vs. The Fastly Next-Gen WAF (powered by Signal Sciences) and other solutions. Updated: March 2025.
842,296 professionals have used our research since 2012.