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AWS WAF vs R&S Web Application Firewall (DenyAll) comparison

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Comparison Buyer's Guide

Executive Summary

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
AWS WAF
Ranking in Web Application Firewall (WAF)
8th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
63
Ranking in other categories
No ranking in other categories
R&S Web Application Firewal...
Ranking in Web Application Firewall (WAF)
49th
Average Rating
9.0
Reviews Sentiment
8.5
Number of Reviews
1
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 AWS WAF is 4.2%, down from 7.3% compared to the previous year. The mindshare of R&S Web Application Firewall (DenyAll) is 0.5%, up from 0.2% 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%
AWS WAF4.2%
R&S Web Application Firewall (DenyAll)0.5%
Other91.5%
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.
Azam S M - PeerSpot reviewer
Infrastructure Lead at Danat Fz LLC
Has successfully filtered malicious traffic and allowed country-specific access controls
For improvement in AWS WAF, we can have better monitoring. One of the things that should be improved in AWS WAF is the monitoring; we need to identify the requests and where they are coming from. If it's a bot, we should differentiate the requests, whether they are automated or not. The way we see it now is just mentioned as a percentage from bots and actual users, which should include proper graphs and detailed information. We also need a feature where we can filter specific requests. If there are scripts in the requests, we should be able to filter those requests to see if there are any scripts running from them.
SS
General Manager at 3R Technologie
Geo-localization and IP reputation help to keep our clients secure and more available
The area that should be improved is licensing. When using an active/passive cluster, we have to pay 70% of the master appliance and license for the passive server that does not work. Since we know that only one server works at a time, we should pay only one license for the appliances and for the support as well. In my opinion, this has to be improved. If possible, the client software should be a web application instead of downloading software for the management. This can avoid login problems when they update or patch.

Quotes from Members

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

Pros

"Someone with a basic understanding of networking and security will be able to implement the firewall's basic features within 15 minutes."
"It is configurable via API."
"There is a huge signature repository"
"It's pretty convenient and pretty easy to set up and run. And then kind of for static content, it also offers caching."
"The stability of Cloudflare Web Application Firewall deserves a perfect 10 out of 10."
"It protects web applications efficiently."
"Very glad the WAF rulesets works out of box, and requires very little tuning or maintenance."
"I have not had any issues with this solution, and I would recommend it to others who are interested in using it."
"The solution is stable."
"The customized billing is the most valuable feature."
"I'm satisfied with AWS WAF, and I've had no issues with it."
"AWS WAF helps us a lot to make sure that the right customer gets the right access to the system."
"The most valuable feature is the way it blocks threats to external applications."
"AWS WAF is something that someone from a cloud background or cloud security background leverages. If they want to natively use a solution in the cloud, AWS WAF comes in handy. It's very useful for that, and the way we can fine-tune the WAF rules is also nice."
"AWS WAF is very easy to use and configure on AWS."
"It has improved our organization a lot because before we were having problems with access management, things have gotten better using this product, it is protecting the files, it has been the best step for us, we are no longer having problems with unauthorized access, where somebody breaches the system or compromises documents, and nothing like that has happened over the past year that we have been using this product."
"The three most valuable features that I noticed are the geo-localization of the user, the IP reputation, and the compartmental analysis."
"By publishing the application without fear, my customer has created new revenue by making the website available anytime and anywhere."
 

Cons

"WAF doesn't directly affect bandwidth costs. It saves costs on protection. However, with the correct setup, it's difficult to determine if it saves costs overall due to the fixed enterprise plan fee."
"Cloudflare Web Application Firewall should improve visibility for a customer."
"The user interface is very simple and straightforward, but users need knowledge about DNS to accomplish tasks."
"The learning curve was steep initially."
"We have noticed some latency when the call goes through the firewall. That could be improved."
"The ModSecurity core rules need to be updated."
"The notification part could be improved. It's very much connected to Web Application Firewall, rate-limiting, and DDoS protection."
"The solution's learning curve can still be further reduced"
"We haven't faced any problems with the solution."
"When users choose the free service, there isn't great support available to them."
"Technical support for AWS WAF could still be improved, e.g. support could be faster, more knowledgeable, and friendlier."
"The cost management has room for improvement."
"The dashboarding could be improved, and the default metrics provided by AWS WAF could be upgraded."
"One area for improvement in AWS WAF could be the limitation on the number of rules, particularly those from third-party sources, within the free tier."
"The rate at which AWS updates their managed rule sets could be better. Features like bot protection or DDoS mitigation, available with other WAF vendors, do not come natively with AWS WAF."
"The technical support does not respond to bugs in the coding of the product."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"Cloudflare offers different types of subscriptions for businesses, enterprises, and personal users, and the pricing is negotiable."
"The solution's pricing option needs to be more transparent for enterprise clients."
"Cloudflare Web Application Firewall is more affordable than other solutions."
"It is not too pricey."
"The annual licensing fee is $10,000 USD."
"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 starts at $20 and can easily go up to $200 monthly"
"We pay $210 per month for CloudFlare WAF."
"There are no costs in addition to the standard licensing fees."
"Its price is fair. There is a very fair amount that they charge. It has a pay-as-you-go model, so it pretty much depends on how much a user uses it. As per the cloud norms, the more you use, the more you pay. I would rate it a five out of ten in terms of pricing."
"AWS WAF costs $5 monthly plus $1 for the rule. It's cheap, cost-wise. It's worth the money."
"It's cheap."
"There are no separate licensing costs we pay for since it is included in the plan we purchase."
"The price of AWS WAF is reasonable, it is not expensive and it is not cheap."
"AWS WAF has reasonable pricing."
"I rate the product price a five on a scale of one to ten, where one is high price, and ten is low price"
Information not available
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Top Industries

By visitors reading reviews
Construction Company
16%
Comms Service Provider
9%
Financial Services Firm
9%
Outsourcing Company
8%
Financial Services Firm
13%
Manufacturing Company
10%
Computer Software Company
7%
Comms Service Provider
7%
No data available
 

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 Business22
Midsize Enterprise12
Large Enterprise28
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 are the limitations of AWS WAF vs alternative WAFs?
Hi Varun, I have had experienced with several WAF deployments and deep technical assessments of the following: 1. Im...
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 is your experience regarding pricing and costs for AWS WAF?
AWS WAF is affordable; it depends on the number of rules you apply. The licensing cost for AWS WAF is just pay-as-you...
Which Web Application Firewall (WAF) would you recommend? R&S or Imperva?
Imperva is a strong choice, given their security focus and ongoing R&D into the product in areas such as bot mana...
 

Also Known As

Cloudflare WAF
AWS Web Application Firewall
Rohde & Schwarz Web Application Firewall, R&S WAF, DenyAll Web Application Security
 

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
eVitamins, 9Splay, Senao International
Information Not Available
Find out what your peers are saying about Imperva, Fortinet, F5 and others in Web Application Firewall (WAF). Updated: August 2026.
909,679 professionals have used our research since 2012.