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F5 Advanced 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
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) (13th)
F5 Advanced WAF
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
69
Ranking in other categories
Web Application Firewall (WAF) (1st)
R&S Web Application Firewal...
Average Rating
9.0
Reviews Sentiment
8.5
Number of Reviews
1
Ranking in other categories
Web Application Firewall (WAF) (41st)
 

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.
Ahmed Moamen - PeerSpot reviewer
Protects applications with versatile authentication features
F5 offers a versatile solution that can be integrated with APM in cases where integration with an external IDB is needed. It is useful for authentication backup if the on-prem directory service is unavailable. Additionally, its WAF functionality is valuable for protecting applications from attacks. It is a versatile and strong solution that's easy to understand and deploy.
SS
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

"Many websites require an SSL certificate because they sell stuff and want SSL. Cloudflare comes with an SSL certificate built in. It's automatic. You sign yourself up for Cloudflare, and an SSL certificate automatically protects your website. You don't necessarily need a certificate if you have a connection between your website and your host, the server, Cloudflare, and the host."
"The UI is good."
"Cloudflare is a security SaaS provider that provides security and protects us from any application layer attack."
"It is easier to configure and develop documentation to see how we have configured firewalls."
"I get a lot of value from Cloudflare's API because it enables you to build a separate environment inside the solution. You can create a domain for performing test requests before you move to the production environment and connect various domains."
"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."
"It is a stable solution. I rate the stability a ten out of ten...I rate the scalability a ten out of ten."
"The most valuable feature of Cloudflare DNS is its global reach and it is always evolving."
"It protects and mitigates damage in the network."
"Web attack signatures are very important for detecting web attacks."
"The most valuable features of F5 Advanced WAF are SSL uploading, signature, and anomaly detection. It is overall a high-quality solution."
"It also has antivirus and DDoS mitigation capabilities. We have enabled these features."
"F5 technical support is excellent. They are experts who always provide the right solution, and they understand the problem. Their response and resolution times are good."
"F5 Advanced WAF has very good stability and scalability. Its initial setup was straightforward."
"Identification, ease of use, and ease of modifying it to most of our needs are valuable."
"The most valuable feature is artificial intelligence and to get extra internal access."
"The three most valuable features that I noticed are the geo-localization of the user, the IP reputation, and the compartmental analysis."
 

Cons

"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."
"They lack a good way to manage DNS as a company, since everything is relegated to single account logins until you get to the higher levels. They have come out with a paid feature to remedy this, but I have not had a chance to fully review it yet to know if it fixes the access problem."
"I think the APIs are a little bit hard for us to work with. The APIs could be more open so that we could integrate better with our SolarWinds or our monitoring solution."
"The pricing could be improved."
"Cloudflare's console should be made more user-friendly."
"Eventually, things go sideways and require fixes when it would have been easier to prevent the issue initially."
"There could be more courses with engineers. I like e-learning, however, having a specialist in a classroom is more comfortable for me."
"If they improve on the placement of their data centers, it would be better. I'm living in a remote area. I would like to connect to them without any kind of lag."
"The solution's dashboard could be improved. When you're moving from policy to policy, the logs and the integration of the logs in other systems aren't straightforward."
"The BNS module needs improvement."
"Users would like to have an additional IP intelligence license to handle this within WAF itself without needing to engage with the SOC team."
"The Sandbox integration feature could be improved."
"F5 Advanced WAF could improve resource usage, it is CPU intensive. Additionally, adding automated remediation would be a benefit. For example, an easy button alerts us of the events that are occurring, and what we want to do at the time. An automated approach where somebody could be alerted very quickly. Instead of going and reconfiguring everything, an automated approach is what I'm looking at."
"The solution should include RASP for another level of protection at the code itself."
"F5 needs to improve API protection with a single F5 solution, without requiring additional modules."
"The solution should include protection against web page attacks like what is available in FortiWeb."
"The area that should be improved is licensing."
 

Pricing and Cost Advice

"We are using the free tier of the solution."
"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."
"A free version of the solution is available."
"In terms of licensing costs, we don't pay for licensing for Cloudflare. We only establish communication, then for peering, Cloudflare takes care of the cross-connection in different data centers."
"The cost primarily depends on the size of the organization."
"Cloudflare's pricing is not much higher and is good for middle-level organizations."
"The product's pricing is cheap."
"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."
"F5 bundles up services and the bundle is what you pay for rather than individual components."
"There are various plans available for Fortinet FortiWeb Cloud WAF as a Service, including a trial version."
"F5 Advanced WAF pricing structure should be adjusted to meet the need of small to medium-sized companies."
"Its price is fair. We have done a couple of deals where they were able to give some kind of discount to the customers. The price was initially high for the customers, but after a couple of negotiations, it came within their budget. They were happy with that."
"After buying the program, you just pay for the support every year."
"There are different licenses available to use F5 Advanced WAF, such as BT, ASM, and LPM."
"The cost is slightly above average."
"The price of F5 Advanced WAF could improve it is expensive."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
11%
Financial Services Firm
9%
Manufacturing Company
7%
Financial Services Firm
15%
Computer Software Company
15%
Government
8%
Comms Service Provider
6%
No data available
 

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 do you like most about F5 Advanced WAF?
It's a fairly easy-to-use and user-friendly tool. My administrators and team also like its ability to customize the r...
What needs improvement with F5 Advanced WAF?
I do not have anything in mind right now that needs improvement. Generally, it works well. If we need any specific fe...
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 DNS
No data available
Rohde & Schwarz Web Application Firewall, R&S WAF, DenyAll Web Application Security
 

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.
MAXIMUS, Vivo, American Systems, Bangladesh Post Office, City Bank
Information Not Available
Find out what your peers are saying about F5, Amazon Web Services (AWS), Microsoft and others in Web Application Firewall (WAF). Updated: August 2025.
865,295 professionals have used our research since 2012.