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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
8.6
Reviews Sentiment
7.2
Number of Reviews
75
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
7.7
Number of Reviews
15
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) (26th)
 

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

"I rate its stability a ten out of ten."
"It is a fast and secure DNS."
"What I like best about Cloudflare is that my company can use it to trace and manage applications and monitor traffic. The solution tells you if there's a spike in traffic. Cloudflare also sends you a link to check your equipment and deployment and track it through peering, so it's a valuable tool."
"The DDoS protection is the most valuable aspect of the solution."
"The attacker won't have details since my public IP is anonymous. It offers us good privacy."
"The solution is very good at mitigating threats."
"There are key things that are used for our enterprise customers, such as Lambda and DNS."
"Cloudflare is a security SaaS provider that provides security and protects us from any application layer attack."
"The solution is good."
"Rules Engine is a valuable feature."
"I find the technical support excellent, and I rate it a ten."
"The tool is easy to use for beginners."
"The most valuable feature is that I can have CDN and load-balancing capabilities in a single service instead of managing two separate tools."
"You can assign as many web application firewall policies as you want to the same instance of Front Door."
"The web application firewall is a great feature."
"Azure Front Door provides DDoS protection and features related to WAF."
"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."
"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

"Even if I wanted to, I wouldn't be able to buy Cloudflare in my country."
"In the last two years, there has been a certain amount of downtime when using the VDM."
"The solution could be more user-friendly."
"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."
"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."
"The tool needs to improve caching of servers. The product needs to include PFX certificate as well."
"Although I think it's quite good, it doesn't provide me with all the features I would expect to have if I were using Imperva."
"It would be beneficial for us if Cloudflare could offer a scrubbing solution. This would involve taking a snapshot of my website and keeping it live during a DDoS attack, ensuring uninterrupted service for our users. DDoS attacks are typically short in duration, and having Cloudflare maintain the site's availability from its secure network would enhance the overall user experience. I would appreciate it if Cloudflare could consider implementing this feature. Many organizations already utilize similar capabilities in their CDN platforms, where a static snapshot of the web page is displayed during DDoS attacks. In terms of features, Cloudflare needs to enhance its resilience and stay more focused on adopting new technologies. For instance, solutions like F5 XC Box, Access Solution, and Distributed Cloud Solution have impressive features, and Cloudflare should strive to match and exceed those capabilities. There's a need for improvement in areas like AI-based DDoS attacks and Layer 7 WAF features. Cloudflare should prioritize enhancements in areas such as behavioral DDoS and protection against SQL injection attacks, considering the prevalent trend of public exposure to the internet for business reasons. Overall, Cloudflare needs to invest more in advancing its feature set."
"There is room for improvement and they're working on it."
"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."
"My suggestion for improvement would be to enhance the Data Export feature to include specific tables, particularly the Azure Diagnostics table."
"This is a relatively expensive solution."
"The product needs to improve its latency."
"It lacks sufficient functionality."
"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 tool should improve its cost."
"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

"We are using the free tier of the solution."
"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."
"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."
"For Cloudflare, I recommend it heavily for small businesses with revenue under a couple of million dollars. Onboarding is easy, and they even have a free plan. This makes it simple for businesses in the $100,000-$500,000 range to try it out and see its value, allowing them to scale up their infrastructure as needed."
"There are no additional costs beyond the standard licensing fees."
"The price of the solution is expensive."
"A free version of the solution is available."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"It is on a pay-as-you-go basis."
"The solution is a bit expensive."
"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 transition to the premium tier has led to increased costs, making it more expensive than the classic tier."
"The pricing of the solution is good."
"The product is 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
Educational Organization
17%
Computer Software Company
14%
Comms Service Provider
9%
Financial Services Firm
8%
Computer Software Company
16%
Financial Services Firm
14%
Manufacturing Company
8%
Government
7%
Educational Organization
18%
Computer Software Company
12%
Manufacturing Company
11%
Financial Services Firm
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?
I am not sure about the pricing but believe Azure Front Door might require a higher cost due to its entry point nature.
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: April 2025.
849,686 professionals have used our research since 2012.