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Cloudflare vs F5 BIG-IP Local Traffic Manager (LTM) vs Fortinet FortiADC 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:
 

ROI

Sentiment score
7.4
Cloudflare WAF delivers immediate ROI by securing e-commerce and banking platforms, ensuring operational efficiency and cost-effectiveness.
Sentiment score
6.5
Cloudflare enhanced speed, security, and data protection, providing significant ROI and improved operations and client satisfaction for businesses.
Sentiment score
7.1
F5 BIG-IP LTM offers strong ROI with 24/7 availability and security, though some note high costs and variable returns.
Sentiment score
6.6
Fortinet FortiADC is chosen for reliable load management, security, and support, offering moderate ROI and essential performance.
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.
The major return on investment is the security of our data.
The alert system is efficient, sending alerts within a fraction of a second if any power issues arise.
 

Customer Service

Sentiment score
6.1
Cloudflare's support is praised for responsiveness and effectiveness, though some Indian users face communication challenges and prefer local help.
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
6.7
F5 BIG-IP's customer service is praised for expertise and resources, though some experience delays and regional support issues.
Sentiment score
6.1
Fortinet FortiADC customer service is praised for effective support but varies in response time and relies on ticket prioritization.
The technical support of Cloudflare Web Application Firewall rates between five and seven at maximum.
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.
I would rate the technical support of F5 BIG-IP Local Traffic Manager (LTM) nine out of ten.
The support team is knowledgeable and efficiently assists with automation and configuration problems.
The service is helpful yet not excellent.
 

Scalability Issues

Sentiment score
8.1
Cloudflare Web Application Firewall is praised for its scalability, flexibility, automation, and superior advantages compared to open-source solutions.
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
7.4
F5 BIG-IP LTM is valued for scalability, flexibility, and adaptability, with configuration and licensing considerations for optimal deployment.
Sentiment score
7.5
Fortinet FortiADC provides scalable solutions with virtual and cloud options, though performance varies by model and infrastructure needs.
The scalability of Cloudflare Web Application Firewall rates between 8 to 9, as it depends upon the use cases and what exactly the client needs.
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.
It is scalable for some versions, however, as components reach their end of support, upgrades are necessary to maintain scalability.
 

Stability Issues

Sentiment score
8.4
Cloudflare Web Application Firewall is highly stable and reliable, ensuring uninterrupted, effective protection and user satisfaction.
Sentiment score
7.6
Cloudflare is widely regarded as stable and reliable, with improvements noted in uptime and performance on higher plans.
Sentiment score
8.0
F5 BIG-IP LTM is valued for stability, handling high loads well despite occasional bugs, making it preferred by organizations.
Sentiment score
8.2
Fortinet FortiADC is praised for stability, reliable operation, effective support, and minor issues resolved through firmware updates.
The stability of Cloudflare Web Application Firewall deserves a perfect 10 out of 10.
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.
The support system is reliable when issues like automation or configuration arise.
 

Room For Improvement

Cloudflare WAF must update features, improve documentation and support, reduce false negatives, and enhance usability, integrations, and visibility.
Cloudflare requires improvements in analytics, CDN speed, API, technical support, DNS management, documentation, pricing clarity, and international and reseller support.
F5 BIG-IP LTM is expensive, complex, lacks flexibility, and needs better UI, reporting, support, cloud integration, and pricing.
Fortinet FortiADC needs advancements in algorithms, UI, support, documentation, scalability, features, pricing, licensing, performance, cloud, and AI integration.
The product can improve by having more multitenancy capability, which is currently not available.
They need to improve their support because getting a response for basic requests took around 48 hours, which is too long.
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.
The limitation of managing all components and the differing versions pose challenges.
If I need design help, they do not assist; they say it is a design issue they cannot support, and I must approach the system integrator.
 

Setup Cost

Enterprise users find Cloudflare's Web Application Firewall competitively priced, reasonable, and transparent despite starting fees and optional features.
Cloudflare offers cost-effective, scalable plans with no setup fees, starting from free for small businesses to enterprise-level solutions.
F5 BIG-IP LTM pricing is higher with complex licensing, but performance justifies the cost; AWS Marketplace is convenient yet costlier.
Fortinet FortiADC is affordable compared to competitors, with flexible licensing, varying costs, and potential discounts based on configurations.
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.
This solution is quite expensive compared to Kemp.
 

Valuable Features

Cloudflare WAF offers API configurability, comprehensive features, robust security, scalability, with strong integration and technical support.
Cloudflare enhances security, speed, and SEO with easy-to-use features like CDN, SSL, DDoS protection, and centralized management.
F5 BIG-IP LTM provides traffic management, security, and customization with iRules, SSL offloading, and an intuitive interface.
Fortinet FortiADC excels in load balancing, security, and ease of integration, offering scalable, reliable, and comprehensive traffic management solutions.
The custom rules and the geo-redundant geographical rule feature, which allows me to implement geographical rules for customers, add significant value.
The best features of Cloudflare Web Application Firewall are multiple, including the WAF, rate limiter, and bot attack protection.
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.
One of the most beneficial features of F5 BIG-IP Local Traffic Manager (LTM) is its ability to identify compromised traffic and its capabilities in authentication.
I use server load balancing and employ layer seven features, which provide more granular traffic shaping and detailed logs.
FortiADC provides load-balancing capabilities needed for integration with other Fortinet platforms.
 

Mindshare comparison

Distributed Denial-of-Service (DDoS) Protection
Application Delivery Controllers (ADC)
Application Delivery Controllers (ADC)
 

Featured Reviews

SachidDoshi - PeerSpot reviewer
Offers a huge signature repository and is superiorly effective in mitigating DDoS attacks
The solution's learning curve can still be further reduced, which presently stands at two or three months. The product has a custom rule set that users can modify and manifest as needed. The vendor can probably shorten the learning curve using cutting-edge technologies like AI. The solution provider can also work around the web applications and identify the toolset that needs to be implemented to deploy the solution in less time. The vendor has launched a SASE product that can function with Cloudflare Web Application Firewall, but many improvements are needed in terms of features, such as the web filtering feature, and CASB has not yet been added.
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.
Bonieber  Orofeo - PeerSpot reviewer
Identifying compromised traffic and securing data has been a significant advantage
One of the most beneficial features of F5 BIG-IP Local Traffic Manager (LTM) ( /products/f5-big-ip-local-traffic-manager-ltm-reviews ) is its ability to identify compromised traffic and its capabilities in authentication. Additionally, the security aspect of it provides a significant advantage as it helps us secure our data, which is a major investment and benefit for us. Before using this system, we had difficulties in storing our data and managing the traffic that comes in and out.
OusaidAbaz - PeerSpot reviewer
Integrates load balancing efficiently within existing technology environments
FortiADC provides load-balancing capabilities needed for integration with other Fortinet platforms. It allows for the creation of virtual IPs and applying various algorithms for traffic management. Although it offers fewer algorithms than competing platforms like F5, its capability to manage load balancing makes it valuable. The security features depend on the environment, relying on firewalls like FortiGate.
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Comms Service Provider
8%
Manufacturing Company
7%
Computer Software Company
15%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Financial Services Firm
15%
Computer Software Company
13%
Government
9%
Manufacturing Company
7%
Computer Software Company
16%
Financial Services Firm
8%
Government
8%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Cloudflare Web Application Firewall?
The product has a valuable security control functionality.
What needs improvement with Cloudflare Web Application Firewall?
I cannot say much about areas of improvement for Cloudflare Web Application Firewall because I haven't gone through d...
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 needs improvement with F5 BIG-IP?
The GUI of F5 BIG-IP Local Traffic Manager (LTM) could be improved. It's not something regarding how it processes or ...
What is your primary use case for F5 BIG-IP?
F5 BIG-IP Local Traffic Manager (LTM) is a perfect product for load balancing and WAF, and I would recommend it far m...
Is Citrix ADC (formerly Netscaler) the best ADC to use and if not why?
For ADC, any ADC can do a good job. But in case if you want to add WAF functionality to the same ADC hardware you hav...
Do you recommend Fortinet FortiADC?
I recommend Fortinet FortiADC. My experience with Fortinet has been very positive. Our company has been using it for ...
What do you like most about Fortinet FortiADC?
The user interface is very easy and integrates with Sandbox easily.
 

Comparisons

 

Also Known As

Cloudflare WAF
Cloudflare DNS
F5 BIG-IP, BIG-IP LTM, F5 ASM, Viprion, F5 BIG-IP Virtual Edition , Crescendo Networks Application Delivery Controller, BIG IP
FortiADC Application Delivery Controller, FortiADC
 

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.
Riken, TransUnion, Tepco Systems Administration, Daejeon University, G&T Bank, Danamon, CyberAgent Inc.
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Find out what your peers are saying about Cloudflare, Radware, NETSCOUT and others in Distributed Denial-of-Service (DDoS) Protection. Updated: July 2025.
864,574 professionals have used our research since 2012.