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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

Cloudflare Web Application ...
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Ranking in Web Application Firewall (WAF)
5th
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
26
Ranking in other categories
No ranking in other categories
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)
23rd
Average Rating
9.0
Reviews Sentiment
6.6
Number of Reviews
2
Ranking in other categories
CDN (11th), Distributed Denial-of-Service (DDoS) Protection (19th), API Security (16th), Dynamic Application Security Testing (DAST) (9th)
 

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.
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.
reviewer2812593 - PeerSpot reviewer
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 product has improved our security posture by blocking bad actors."
"For us, the key feature of Cloudflare is DDoS protection and IP hiding, especially since we are a crypto company."
"This solution does a good job of preventing web application attacks, SQL injections, and cross-site scripting attacks."
"Caching is the most valuable feature of Cloudflare Web Application Firewall."
"We extensively use the solution every day. The solution is very stable; we haven’t seen any glitches."
"The integration of Cloudflare with Cloud Suite is its most valuable feature."
"Cloudflare has positively impacted my organization by making it easier for me to handle and set up DNS for multiple clients; I can easily go in and access their accounts, make changes they need, and it's a one-stop shop."
"The most valuable part of the solution for us overall is exactly that it is a Software-as-a-Service product."
"I like them because I like the security solution. They get extra marks compared to other solutions or competitors. There are more features than any other product I can think of. They're always monitoring, and the security features offer more than other, lesser products."
"The most valuable feature is that it is secure."
"It's flexible and powerful, and the users can input their own rules to the system."
"I like the security features, especially against SQL injection."
"We can monitor IP locations, but we have constraints from each country. It has a replication feature. Licenses can be shared, taking turns with each license."
"I would recommend this solution because it is overall a very good solution."
"What a WAF is happens to be exactly what we are using F5 WAF for: a firewall for our web applications."
"F5 Advanced WAF has benefited our company by protecting us against revenue loss, preventing hacks that would have taken us offline or caused us a loss of revenue in different areas."
"We have seen a reduction in incidents and a good return on investment from Fortinet FortiAppSec Cloud, with our return on investment around 60%."
"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."
 

Cons

"The ModSecurity core rules need to be updated."
"They need to improve their support because getting a response for basic requests took around 48 hours, which is too long."
"Cloudflare Web Application Firewall should improve visibility for a customer."
"The rate limiting functionality could be enhanced, as we find it somewhat limited."
"They have some limitations with third-party integrations."
"The blocked logs are difficult to read at times."
"The accuracy of the Cloudflare Web Application Firewall could be improved by reducing the number of false-negative alerts."
"A key challenge arises when dealing with numerous integrations with HVAC systems. Depending on the specifics, there might be some configuration mismatches, which necessitate specific support."
"Nevertheless, F5 products are generally considered to be hard to deploy."
"This solution can be made more user-friendly."
"The product could be more user-friendly, particularly the user interface for administrators."
"There are opportunities for improvement in updating the user interface to a more modern look."
"The solution is very expensive so should only be used in the right environment."
"F5 Advanced needs to improve its bot protection. The solution needs to have machine learning to learn the behavior of the customer to recognize the human versus the bot. This is a difficult feature to explain to our customers. I would like documentation about the bot feature to make it easier for the customer to understand."
"What needs to be improved in this solution is the accuracy of its automatic learning feature, because we frequently have to help it manually, particularly to stop blocking things it isn't supposed to block."
"F5 Advanced WAF sells perpetual licenses as perpetual assets during sales without informing me that support ends after a few years."
"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

"Cloudflare offers different types of subscriptions for businesses, enterprises, and personal users, and the pricing is negotiable."
"We pay $210 per month for CloudFlare WAF."
"Cloudflare Web Application Firewall is more affordable than other solutions."
"It is not too pricey."
"The annual licensing fee is $10,000 USD."
"The solution is expensive."
"The solution's pricing option needs to be more transparent for enterprise clients."
"The pricing model is very straightforward compared to the competition. You just pay per month for the product and usage."
"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 solution is very expensive so should only be used in the right environment."
"F5 Advanced WAF technical support comes at a cost, and it's expensive."
"It is a little bit costly, but it has all the features that are required."
"I rate F5 Advanced WAF's pricing a three out of ten."
"As far as the pricing of F5 Advanced WAF I would rate it a four out of five depending on what features I am looking for. Imperva is more expensive."
"F5 Advanced WAF pricing structure should be adjusted to meet the need of small to medium-sized companies."
"The way we deployed it, I would rate it a four out of five in terms of pricing."
Information not available
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Top Industries

By visitors reading reviews
Construction Company
17%
Comms Service Provider
9%
Financial Services Firm
9%
Computer Software Company
7%
Financial Services Firm
15%
Computer Software Company
10%
Government
8%
Comms Service Provider
8%
Construction Company
30%
Financial Services Firm
10%
Manufacturing Company
9%
Healthcare Company
8%
 

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 Business28
Midsize Enterprise15
Large Enterprise30
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 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 is your experience regarding pricing and costs for F5 Advanced WAF?
The pricing for F5 Advanced WAF is a bit higher, but not that high. I would say for a good amount of revenue-generati...
What needs improvement with F5 Advanced WAF?
On the features I wish existed, Big-IP Advanced WAF is primarily an on-premises solution and in that solution, there ...
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 l...
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 ...
 

Also Known As

Cloudflare WAF
No data available
No data available
 

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
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: April 2026.
893,244 professionals have used our research since 2012.