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F5 Advanced WAF vs Fortinet FortiAppSec Cloud 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

F5 Advanced WAF
Ranking in Web Application Firewall (WAF)
3rd
Average Rating
8.4
Reviews Sentiment
6.8
Number of Reviews
72
Ranking in other categories
No ranking in other categories
Fortinet FortiAppSec Cloud
Ranking in Web Application Firewall (WAF)
26th
Average Rating
9.0
Reviews Sentiment
6.6
Number of Reviews
2
Ranking in other categories
CDN (12th), Distributed Denial-of-Service (DDoS) Protection (17th), API Security (16th), Dynamic Application Security Testing (DAST) (10th)
 

Mindshare comparison

As of November 2026, in the Web Application Firewall (WAF) category, the mindshare of F5 Advanced WAF is 3.3%, down from 7.6% compared to the previous year. The mindshare of Fortinet FortiAppSec Cloud is 1.4%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
F5 Advanced WAF3.3%
Fortinet FortiAppSec Cloud1.4%
Other95.3%
Web Application Firewall (WAF)
 

Featured Reviews

reviewer2797602 - PeerSpot reviewer
Senior Security Systems Engineer at a tech services company with 11-50 employees
Granular security policies have protected critical applications and ensure safe user and admin access
Improvements could be made regarding the log information from the backend CLI. There are enhancements needed; if a request gets blocked on the TCP layer, there should be traces or data to verify which source generated these requests, including the source and port information for initiation. These data are missing from F5 Advanced WAF. Besides that, another improvement could be refining the bot detection to minimize false positives; it should be able to verify more granularly between legitimate and non-legitimate clients. Overall, I find everything else good. A wish list feature I have is for the Technical Assistance Center (TAC) to respond more promptly. Their response time needs improvement; while they do not take excessive time, it can be enhanced, especially given it is a security product.
OE
CIO at a financial services firm with 51-200 employees
Advanced threat protection has reduced financial risk and improves application security visibility
The issue I have with Fortinet FortiAppSec Cloud is that the real-time analysis is not robust; I am unable to see all the logs of everything that happened, including what is passive. It only logs when there are suspicious activities, which means if something is not considered suspicious by Fortinet, I will not see the full picture. That is a disadvantage because it will not log unless it identifies an IOC or attacks, meaning I cannot see traffic information in a way that helps build more intelligence. The biggest issue I have with Fortinet FortiAppSec Cloud is that the logging is not as extensive as I would prefer. For instance, if there was an issue two days ago and Fortinet FortiAppSec Cloud did not mark it as a concern, I will not see any information about that, making it challenging to explain to customers if their request did not reach us. It hampers visibility from an API perspective. They need to enhance monitoring and logging to be more extensive and capture even passive activities. The AI integration in Fortinet FortiAppSec Cloud is still new. The generative models are good, but there is much work left to improve. It is not as intelligent as it could be; thus, enhancements around the AI co-assistant would be beneficial. Additionally, logging and monitoring need improvement as I can capture traffic and investigate offline on my Fortinet firewall, including full traffic view, but Fortinet FortiAppSec Cloud currently focuses only on security concerns, which does not give the complete picture.

Quotes from Members

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

Pros

"The most valuable feature of F5 Advanced WAF is its ability to mitigate attacks: DDoS and DNS, or layer seven application attacks, OWASP, and email."
"Good dashboard and reporting."
"The most valuable feature of F5 Advanced WAF is its grand unity of the implementation, where you have the freedom to configure based on how it affects your use case or your organization. With the default setting of implicit deny, you can gradually start defining and deploying the tool to align with your environment, whether it is outdated, recent, or futuristic. This allows you to customize the solution to protect you from threat actors. You have the ability to define what the advanced threat act should do - whether it should alert, deny, or both - and it will deliver based on your configuration. Unlike other online solutions, F5 Advanced WAF provides flexibility to deliver to your unique environment the way you want."
"There are two main features that we love on F5."
"In this case, we used a few long-term models because F5 Advanced WAF is a complete solution."
"I would recommend this solution to others who are interested in using it."
"F5's user-friendly interface and seamless integration stand out as the most valuable features for us."
"F5 Advanced WAF is a stable solution, we are satisfied. It is more stable than ForiWeb."
"My favorite Fortinet device is the FortiGate next-gen firewall itself; it is a complete suite with intrusion prevention, intrusion detection, anti-malware, anti-DDoS, and SD-WAN functionalities."
"We have seen a reduction in incidents and a good return on investment from Fortinet FortiAppSec Cloud, with our return on investment around 60%."
 

Cons

"F5 needs to improve API protection with a single F5 solution, without requiring additional modules."
"F5 Advanced WAF is not a cost-effective solution."
"The product could be more user-friendly, particularly the user interface for administrators."
"Everything is good about the F5 WAF, except the reporting. It's really difficult to set records from that device, the UI is kind of hard to work with, and the reporting must be improved."
"The pricing of F5 Advanced WAF is more expensive than other solutions like Radware and CD18, it is quite high."
"I would not expect traffic details to pass through the web application firewall across the length of the whole application. I think that there is a web application where it can let the application function without traffic going in into the WAF."
"The Sandbox integration feature could be improved."
"The solution could improve by having an independent capture module. It has a built feature that you can deploy the capture on your published website. However, it's not very user-friendly. When you compare this feature to Google Capture or other enterprise captures, they are very simple. It needs a good connection to the F5 Advanced WAF sandbox. When you implement this feature in the data center, you may suffer some complications with connecting to the F5 Advanced WAF sandbox. This should be improved in the future."
"Real-time traffic analysis has posed an issue for us because we did not see logs for legitimate traffic."
"The issue I have with Fortinet FortiAppSec Cloud is that the real-time analysis is not robust; I am unable to see all the logs of everything that happened, including what is passive."
 

Pricing and Cost Advice

"F5 Advanced WAF is not a cost-effective solution. Although they are attempting to reduce prices with their VE and cloud options, they are more expensive than other solutions. The solution is more expensive on average."
"The price of the solution is reasonable when compared with other products, such as FortiWeb. I am very satisfied with the price."
"It is a little bit costly, but it has all the features that are required."
"The pricing of F5 Advanced WAF is more expensive than other solutions like Radware and CD18, it is quite high."
"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."
"It is expensive. Its price should be better. Its licensing is on a yearly basis. Its licensing is also based on the model. There are no additional costs."
"The pricing is too high."
Information not available
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Outsourcing Company
10%
Comms Service Provider
9%
Computer Software Company
9%
Construction Company
19%
Financial Services Firm
10%
Comms Service Provider
9%
Healthcare Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise16
Large Enterprise31
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for F5 Advanced WAF?
F5 Advanced WAF is somewhat costly compared to other vendors, but it is worth the investment due to the stability it provides to the environment and infrastructure.
What needs improvement with F5 Advanced WAF?
Improvements could be made regarding the log information from the backend CLI. There are enhancements needed; if a request gets blocked on the TCP layer, there should be traces or data to verify wh...
What is your primary use case for F5 Advanced WAF?
My main use case for F5 Advanced WAF is to protect external and internal applications from cyber attacks and to prevent malicious payloads and malicious data from reaching servers. Even if maliciou...
What needs improvement with Fortinet FortiAppSec Cloud?
Real-time traffic analysis has posed an issue for us because we did not see logs for legitimate traffic. A separate license is needed for Fortinet FortiAppSec Cloud to send logs to other cloud serv...
What is your primary use case for Fortinet FortiAppSec Cloud?
Fortinet FortiAppSec Cloud is used as a WAF solution.
What advice do you have for others considering Fortinet FortiAppSec Cloud?
We are a customer running Fortinet FortiAppSec Cloud for both our organization and one for our customer. Three users use Fortinet FortiAppSec Cloud. As administrators, it is easy to maintain. Using...
 

Overview

 

Sample Customers

MAXIMUS, Vivo, American Systems, Bangladesh Post Office, City Bank
Information Not Available
Find out what your peers are saying about F5 Advanced WAF vs. Fortinet FortiAppSec Cloud and other solutions. Updated: September 2026.
920,929 professionals have used our research since 2012.