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F5 Advanced WAF vs Fortinet FortiWeb comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Apr 20, 2025

Review summaries and opinions

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

ROI

Sentiment score
6.5
Cloudflare enhanced speed, security, and data protection, providing significant ROI and improved operations and client satisfaction for businesses.
Sentiment score
7.8
F5 Advanced WAF provides high ROI with scalable security, efficient onboarding, regulatory compliance, and strong data protection.
Sentiment score
6.9
Fortinet FortiWeb users value cost-effectiveness, security enhancements, reduced operational expenses, and efficient deployment with notable infrastructure cost savings.
WordPress security can be tricky, and that's where Cloudflare can be absolutely helpful for small businesses.
For the small project I was working on, using the basic tier provided a huge improvement at zero cost.
Subscription models offer clearer ROI due to a more competitive pricing scheme.
 

Customer Service

Sentiment score
7.0
Cloudflare's customer service is efficient for paying users, but responses can vary in speed and effectiveness for others.
Sentiment score
7.1
F5 Advanced WAF support is professional, helpful, but needs quicker responses; higher SLAs offer faster service and better experience.
Sentiment score
6.7
Fortinet FortiWeb support is generally well-rated, though some users experience delays and suggest improvements in language support.
This would help us address issues promptly, especially during unforeseen events like DDoS attacks.
Cloudflare does not offer hands-on technical support to fix customer problems but rather a self-service model.
The key factor is the language in which the support is offered, which, in this case, is in Thai.
If there is a bug, the support is usually understanding and resolves issues.
I have interacted with F5's support, and while I have no major complaints, they could improve.
The expertise of engineers varies across different time zones, affecting the effectiveness of the support provided, especially during our daytime.
 

Scalability Issues

Sentiment score
8.1
Cloudflare is praised for seamless scalability, managing enterprise-level traffic efficiently and earning high customer satisfaction during peak events.
Sentiment score
7.6
F5 Advanced WAF excels in scalability and adaptability, supporting diverse applications, ideal for medium to large enterprises.
Sentiment score
7.2
Fortinet FortiWeb provides scalable options, with virtual and cloud models offering flexibility, though initial sizing is crucial.
It is a SaaS tool, but the fact that they have workloads deployed across the world proves that it is a highly scalable tool.
The tool offers very good performance, even during high-traffic periods.
I rate the solution’s scalability an eight out of ten.
 

Stability Issues

Sentiment score
7.6
Cloudflare is widely regarded as stable and reliable, with improvements noted in uptime and performance on higher plans.
Sentiment score
8.5
F5 Advanced WAF is praised for stability and reliability, scoring highly in sectors like banking and telecom.
Sentiment score
7.8
Fortinet FortiWeb is stable and reliable, with efficient support despite occasional memory, firmware, and setup issues.
For DDoS protection, I would not recommend Cloudflare.
I rate the solution’s stability an eight out of ten.
The service is very stable with no impacts during high-traffic periods.
We have not faced any significant issues during deployments.
 

Room For Improvement

Cloudflare requires improvements in analytics, CDN speed, API, technical support, DNS management, documentation, pricing clarity, and international and reseller support.
F5 Advanced WAF needs easier interfaces, better integration, enhanced support, and improved features for user-friendliness and efficiency.
Fortinet FortiWeb users desire improved patching, integration, usability, detection accuracy, reporting, hardware support, training, and cloud deployment options.
There's a need for improvement in areas like AI-based DDoS attacks and Layer 7 WAF features.
Despite these challenges, overall, Cloudflare remains the preferred solution compared to Azure, AWS CloudFront, and Google Cloud Armor.
Cloudflare should add more documentation and pricing to the cloud version.
Deployment training for F5 Advanced WAF is lacking and restricts growth by being inaccessible and costly for partners.
The cloud-based security service of Fortinet FortiWeb could be enhanced to match the level of providers like Cloudflare.
 

Setup Cost

Cloudflare offers cost-effective, scalable plans with no setup fees, starting from free for small businesses to enterprise-level solutions.
F5 Advanced WAF is costly but valued for its advanced features, comprehensive protection, and flexibility in high-stakes environments.
Fortinet FortiWeb offers affordable pricing and flexible licensing options, making it a cost-effective choice against competitors like F5.
That's where Cloudflare shines for smaller businesses – it's ten times cheaper than Akamai.
I find it to be cheap.
I think they should consider reevaluating the pricing for support, as it can be quite high.
Subscription models have competitive pricing, while perpetual licenses involve an upfront higher cost.
The price is affordable and satisfactory.
For VM machines, the price increases based on CPU configurations of 2, 4, or 8 CPUs.
Fortinet FortiWeb is cost-effective compared to solutions like F5.
 

Valuable Features

Cloudflare enhances security, speed, and SEO with easy-to-use features like CDN, SSL, DDoS protection, and centralized management.
F5 Advanced WAF offers comprehensive protection with integration, customization, and features like network intelligence, DDoS prevention, and behavior analysis.
Fortinet FortiWeb offers exceptional security with features like advanced threat detection, application control, and seamless integration with Fortinet products.
The most valuable features of the solution are performance and security.
Techniques like minification and image compression reduce the size of assets, leading to better performance and faster user load times.
The solution has been able to compare it to the market, and I think the product has taken great strides in automating quite a bit of things, and they use a lot of AI.
The perpetual license, despite an initial higher cost, lacks transparency regarding support expiration.
It contains the logic of both negative and positive security combined.
The machine learning-based threat detection is significant, as it uses a learning method that eases the configuration burden, making it very useful.
 

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) (2nd)
Fortinet FortiWeb
Average Rating
7.8
Reviews Sentiment
6.6
Number of Reviews
96
Ranking in other categories
Web Application Firewall (WAF) (4th)
 

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.
OcheEluma - PeerSpot reviewer
Enhanced security with comprehensive traffic inspection and some downtime automation needs
One area that needs improvement is the handling of SaaS downtime. When there is downtime at their data center, it becomes a transit point issue for us, causing downtime in our environment as well. Although measures like built-in redundancy and manual switching between data centers exist, there is room for improvement in making these transitions automatic without impacting the customer. Automating the migration without manual intervention would significantly enhance user experience during downtime. Additionally, being able to read non-flagged traffic for operational purposes could also be an area to improve.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Financial Services Firm
16%
Computer Software Company
14%
Government
8%
Comms Service Provider
6%
Computer Software Company
13%
Financial Services Firm
11%
Government
7%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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...
What do you like most about Fortinet FortiWeb?
The WAF profiles has been effective at mitigating web-based threats.
What is your experience regarding pricing and costs for Fortinet FortiWeb?
Fortinet FortiWeb is cost-effective compared to solutions like F5. It offers strong performance for the price, provid...
What needs improvement with Fortinet FortiWeb?
The cloud-based security service of Fortinet FortiWeb could be enhanced to match the level of providers like Cloudfla...
 

Also Known As

Cloudflare DNS
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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
Lush, Barnabas Health, Options, Riverside Healthcare, Hillsbourough County Schools, Columbia Public Schools, Schiller AG
Find out what your peers are saying about F5 Advanced WAF vs. Fortinet FortiWeb and other solutions. Updated: July 2025.
861,803 professionals have used our research since 2012.