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F5 Advanced WAF vs FortiWeb Web Application Firewall (WAF) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 1, 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 users experienced increased performance, security, and cost-effectiveness, leading to improved loyalty and revenue despite difficult ROI calculations.
Sentiment score
7.8
F5 Advanced WAF provides high ROI with scalable security, efficient onboarding, regulatory compliance, and strong data protection.
Sentiment score
7.3
FortiWeb enhances security, cuts costs, saves resources, offering a 70% ROI and improving financial and operational efficiency.
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.
In terms of return on investment with Cloudflare, it costs my time to set them up, but basically once they're set up, it's done.
Subscription models offer clearer ROI due to a more competitive pricing scheme.
 

Customer Service

Sentiment score
7.0
Cloudflare's customer service is quick, but technical support feedback is mixed, with improvement needed in responsiveness and detailed assistance.
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
FortiWeb's customer service is inconsistent, with varied experiences in responsiveness, regional support, and subscription cost concerns.
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.
Their support is truly exceptional when I compare it with similar large-sized companies.
The back-end development team is available, and if any issue arises, they will help us immediately by providing solutions when contacted.
 

Scalability Issues

Sentiment score
8.1
Users praise Cloudflare for seamless scalability, effective traffic management, easy upgrades, and robust global infrastructure without disruptions.
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
FortiWeb WAF is scalable, supporting diverse users, with high ratings but some licensing flexibility challenges noted.
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 highly rated for stability and uptime, with few past issues, especially on higher-tier plans.
Sentiment score
8.5
F5 Advanced WAF is praised for stability and reliability, scoring highly in sectors like banking and telecom.
Sentiment score
8.1
FortiWeb is seen as stable, routinely scoring high, but users suggest using FortiAnalyzer for enhanced security management.
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.
 

Room For Improvement

Enhancements needed in Cloudflare: analytics, CDN latency, API integration, user support, DNS, pricing, documentation, server coverage, WAF, and cache.
F5 Advanced WAF needs easier interfaces, better integration, enhanced support, and improved features for user-friendliness and efficiency.
FortiWeb WAF requires improvements in integrations, performance, support, scalability, and more enterprise features to compete with competitors.
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.
The timing aspect can lead to it being considered overpriced. This is a particular concern we have with Cloudflare, as they may struggle with accurately detecting the client.
Deployment training for F5 Advanced WAF is lacking and restricts growth by being inaccessible and costly for partners.
If the GUI includes notifications and improved logging capabilities that allow us to see traffic and store logs for six months, that would be very helpful.
If some of my customers want to migrate from F5 to Fortinet Firewall, or the Fortinet WAF solution, there are some migration issues.
 

Setup Cost

Cloudflare offers scalable pricing, from free to enterprise plans, providing significant value especially for mid-sized companies.
F5 Advanced WAF is costly but valued for its advanced features, comprehensive protection, and flexibility in high-stakes environments.
FortiWeb Web Application Firewall offers flexible pricing, core and advanced features, and scalable licensing for cost-efficient protection.
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.
If the customer has multiple websites, the price reduces automatically because it depends on the number only.
 

Valuable Features

Cloudflare enhances performance and security with CDN caching, DDoS protection, and an easy-to-use dashboard, benefiting many users.
F5 Advanced WAF offers comprehensive protection with integration, customization, and features like network intelligence, DDoS prevention, and behavior analysis.
FortiWeb Web Application Firewall provides user-friendly setup, protection against attacks, scalability, and cost-effective security features like machine learning.
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.
Fortinet's pricing is way more competitive than Cisco or Palo Alto.
The features of FortiWeb Web Application Firewall (WAF) that have proven most effective in protecting web applications include web filtering, DDoS protection, geo-location blocking, and blocking SQL injection attacks.
 

Categories and Ranking

Cloudflare
Sponsored
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
77
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (12th)
F5 Advanced WAF
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
69
Ranking in other categories
Web Application Firewall (WAF) (1st)
FortiWeb Web Application Fi...
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
24
Ranking in other categories
Web Application Firewall (WAF) (15th)
 

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.
Nitith Unarat - PeerSpot reviewer
Identifies potential DDoS attacks and suspicious domain activity
The price could be close to Imperva; Imperva is the number one firewall. FortiWeb cannot do some kind of ADC solution, like load balancing. I hope they improve that. I'm looking for the ADC solution, the load balancing solution. Because application firewalls with multiple line solutions do come with it. So, I think it should be integrated within FortiWeb WAF.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Computer Software Company
15%
Financial Services Firm
14%
Government
8%
Comms Service Provider
7%
Computer Software Company
9%
Manufacturing Company
9%
Government
9%
Financial Services Firm
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise14
Large Enterprise29
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise7
Large Enterprise4
 

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 FortiWeb Web Application Firewall (WAF)?
The most valuable features of the solution are SD-WAN, filtration, web filter, application filter, and IPS.
What is your experience regarding pricing and costs for FortiWeb Web Application Firewall (WAF)?
The pricing for FortiWeb Web Application Firewall (WAF) is reasonable. That said, it depends on how many websites we ...
What needs improvement with FortiWeb Web Application Firewall (WAF)?
Their AI technology is good. Overall, Fortinet is only good. The improvement needed is in their response time. In the...
 

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
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Find out what your peers are saying about F5 Advanced WAF vs. FortiWeb Web Application Firewall (WAF) and other solutions. Updated: September 2025.
872,029 professionals have used our research since 2012.