F5 Silverline Managed Services vs Fortinet FortiAppSec Cloud comparison

F5 and Fortinet are both solutions in the Web Application Firewall (WAF) category. F5 is ranked #21 with an average rating of 8.7, while Fortinet is ranked #41. Additionally, 100% of F5 users are willing to recommend the solution, compared to 100% of Fortinet users who would recommend it.

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Executive Summary

We performed a comparison between F5 Silverline Managed Services and Fortinet FortiAppSec Cloud based on real PeerSpot user reviews.

Find out what your peers are saying about Fortinet, F5, Imperva and others in Web Application Firewall (WAF).

To learn more, read our detailed Web Application Firewall (WAF) Report (Updated: March 2026).

Buyer's Guide

Web Application Firewall (WAF)

March 2026

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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 ...

Featured Reviews

Dean Barisic

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.

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Mohan Janarthanan

Associate Vice President at Novac Technology Solutions

Cloud applications have gained stronger protection and real-time defense against web attacks

What really stands out for me in terms of advantages of F5 Silverline Managed Services is that in a single cloud platform, I can protect my web applications against attacks. I can also use my load balancer in F5 because they are providing and acting as a load balancer too, and they will support the volumetric and DDoS attacks and malicious attacks. Regarding the real-time threat intelligence feature, I do use this aspect in F5 Silverline Managed Services. It blocks malicious IPs or bad IPs for my server, protecting against my applications. For example, if someone is a bad actor trying to access via a malicious IP, I can block it because the threat intelligence has the capability to block the malicious IP. The adaptable and flexible security impacts threat response time positively. It is effective because it blocks my malicious traffic. Whenever I face issues related to that application, it automatically routes my traffic to act as a proxy and routes my traffic to their scrubbing center, especially in case of any volumetric attack.

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reviewer2812593

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.

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Quotes from Members

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

Pros

"It is a SaaS solution unlike much of the competition."

"We like that there's load balancing, firewall capabilities, DDoS protection, et cetera, all covered by Cloudflare."

"Very glad the WAF rulesets works out of box, and requires very little tuning or maintenance."

"This solution does a good job of preventing web application attacks, SQL injections, and cross-site scripting attacks."

"Some of the most valuable features of Cloudflare Web Application Firewall include its DNS zone setup and the zero trust policy."

"The rate limiting features and customizations in terms of URL match and applying policies are valuable to me."

"Someone with a basic understanding of networking and security will be able to implement the firewall's basic features within 15 minutes."

"For us, the key feature of Cloudflare is DDoS protection and IP hiding, especially since we are a crypto company."

More Cloudflare Web Application Firewall pros

"F5 technical support is really good; it is better than A10."

"The most valuable features are the configuration and configuring the process."

"We have a lot of businesses that we put behind this solution, and it has really helped us in terms of monitoring the logs and incidents."

"The most valuable feature of F5 Silverline Managed Services is the benchmark performance."

"The most important feature is that they have seven firewall protection, to protect our web servers."

"The product’s UI is easy to understand."

"F5 Silverline Web Application Firewall works perfectly fine; it pretty much does everything that an Advanced WAF on-premises should do."

"Most vendors fulfill the requirements for standard DDoS protection, but F5 Silverline Managed Services has a better understanding of defending web applications like HTTP and can mitigate more bot activity than any other vendor."

More F5 Silverline Managed Services pros

"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

"Cloudflare Web Application Firewall should improve visibility for a customer."

"The dashboard could be more user-friendly."

"They need to improve their support because getting a response for basic requests took around 48 hours, which is too long."

"We have noticed some latency when the call goes through the firewall. That could be improved."

"The reporting could be improved if it were more granular."

"Cloudflare should update the version of the ModSecurity core rule set that they run on."

"Support can be challenging at times."

"The notification part could be improved. It's very much connected to Web Application Firewall, rate-limiting, and DDoS protection."

More Cloudflare Web Application Firewall cons

"One negative aspect is that the product is expensive."

"The price of F5 Silverline Managed Services could be better."

"The product could be improved on the global load and the integration with other solutions like Cisco and Dell EMC."

"In terms of the scalability, this part is always so confusing because they are checking for packet count. Also, after an attack, they said that the throughput must be from gigabits but then I check my bandwidth and it is already done in gigabits. So it is a little bit confusing."

"To make this solution much better, they must have a user-friendly configuration interface."

"F5 Silverline Managed Services can improve by reducing the price."

"We have complaints about the reliability of this solution."

"We are doing a lot of automation, so I find the APIs are not very easy to use. So the current automation is not that good for F5 at the moment."

More F5 Silverline Managed Services cons

"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

"We pay $210 per month for CloudFlare WAF."

"The solution's pricing option needs to be more transparent for enterprise clients."

"Cloudflare Web Application Firewall is more affordable than other solutions."

"The pricing model is very straightforward compared to the competition. You just pay per month for the product and usage."

"The solution is expensive."

"What's my experience with pricing, setup cost, and licensing? I believe the pricing is not the best, but it's reasonable and acceptable. We also use the McAfee system in parallel. In terms of pricing, its okay - not great, but not bad either. It falls in the middle, which is acceptable. In terms of support licensing, last time, we were searching for a solution, and we considered products from resellers rather than directly from the cloud provider. However, the pricing we encountered was exceptionally high. As a result, we are inclined to select support from the reseller."

"Cloudflare offers different types of subscriptions for businesses, enterprises, and personal users, and the pricing is negotiable."

"It is not too pricey."

More Cloudflare Web Application Firewall pricing and cost advice

"The product’s pricing is reasonable."

"The price of F5 Silverline Managed Services could be better, they are not very flexible. The price of the solution is based on the requirements of the enterprise."

"The price of F5 Silverline Managed Services could be reduced."

"F5 Silverline Web Application Firewall works based on your bandwidth. They look at the clean bandwidth and do the pricing. 20% of a total pipe would be a clean bandwidth. The list price or a non-negotiated price for F5 Silverline Web Application Firewall would be around $2,200 per application per year for everything that you need. When you get into an enterprise kind of a setup, they negotiate this to the last bit. I would easily take 20% on that, which would be the cost, but it should cover all your Advance WAF features, bot protection, tech campaign, etc. It is built as a package and gives you most of the capability. You don't get the mobile SDK, which is an additional license. Mobile SDK is required only if you're buying or if you have a mobile application, and you are going to instrument F5 or Imperva into your mobile appliance. This anyways would be an additional module. It doesn't come within the WAF, but it is a WAF feature."

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Top Industries

By visitors reading reviews

Construction Company

17%

Computer Software Company

Manufacturing Company

Comms Service Provider

Financial Services Firm

17%

Comms Service Provider

14%

Insurance Company

11%

Computer Software Company

Construction Company

32%

Healthcare Company

Financial Services Firm

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	16
Midsize Enterprise	6
Large Enterprise	6

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	3
Large Enterprise	9

No data available

Questions from the Community

What is your experience regarding pricing and costs for Cloudflare Web Application Firewall?

The price of Cloudflare Web Application Firewall is reasonable.

See all answers

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...

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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...

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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...

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What is your experience regarding pricing and costs for F5 Silverline Managed Services?

Regarding the pricing of F5 Silverline Managed Services, I would say it is quite affordable.

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What needs improvement with F5 Silverline Managed Services?

In terms of areas for improvement, I would say that one scenario is that F5 Silverline Managed Services needs to adap...

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Product Reports

Buyer's Guide

Cloudflare Web Application Firewall

March 2026

Cloudflare Web Application Firewall report

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Buyer's Guide

F5 Silverline Managed Services

March 2026

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Buyer's Guide

Web Application Firewall (WAF)

March 2026

Download Fortinet FortiAppSec Cloud product report

Also Known As

Cloudflare WAF

F5 Silverline Web Application Firewall, F5 Silverline DDoS Protection

No data available

Overview

Cloudflare Web Application Firewall's intuitive dashboard enables users to build powerful rules through easy clicks and also provides Terraform integration. Every request to the WAF is inspected against the rule engine and the threat intelligence curated from protecting over 27 Million websites. Suspicious requests can be blocked, challenged or logged as per the needs of the user while legitimate requests are routed to the destination, agnostic of whether it lives on-premise or in the cloud. Analytics and Cloudflare Logs enable visibility into actionable metrics for the user.

Cloudflare

F5's Silverline Managed Services is a SaaS solution delivering DDoS protection, managed Web Application Firewall (WAF) services, and managed Shape Security Fraud and Anti-bot solutions.

Silverline services include 24x7 access to F5's Security Operations Center (SOC). F5's expert security professionals use F5 products with state-of-the-art security tools to ensure the best protection possible. As an add-on to Silverline DDoS or WAF services, Silverline Threat Intelligence integrates dynamic lists of threatening IP addresses to give context for policy decisions.

Fortinet FortiAppSec Cloud is a comprehensive security offering, designed to protect applications across cloud environments. It focuses on providing advanced security measures that cater to the needs of enterprises looking for robust application protection.

Fortinet FortiAppSec Cloud leverages an array of sophisticated technologies to offer top-tier security for cloud applications. It safeguards against threats by implementing features such as cutting-edge machine learning models and real-time threat intelligence. This ensures data integrity and application availability, crucial for maintaining normal business operations. By integrating seamlessly into cloud environments, Fortinet FortiAppSec Cloud offers a user-friendly experience that does not compromise on security.

What are the key features of Fortinet FortiAppSec Cloud?

Machine Learning Models: Employs AI for threat detection and prevention, enhancing security efficiency.
Real-Time Threat Intelligence: Offers timely updates to combat emerging threats.
Seamless Cloud Integration: Ensures easy deployment and operation within cloud infrastructures.
Scalability: Adapts to growing business needs, providing consistent security coverage.

What benefits should users expect when evaluating Fortinet FortiAppSec Cloud?

Cost Efficiency: Reduces expenses by preventing security breaches and minimizing downtime.
Enhanced Security Posture: Provides improved protection, reducing vulnerability exposure.
Operational Efficiency: Streamlines management, allowing IT teams to focus on strategic tasks.
Future-Proof Investment: Offers scalable security to meet evolving business demands.

Fortinet FortiAppSec Cloud is widely implemented across industries such as finance, healthcare, and e-commerce. Organizations in these fields benefit from its ability to secure sensitive data and maintain compliance with rigorous industry standards. Its adaptive design ensures that businesses can provide secure and reliable services to their customers at all times.

Fortinet

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk

City Bank, Ricacorp Properties, Miele, American Systems, Bangladesh Post Office

Information Not Available

Buyer's Guide

Web Application Firewall (WAF)

March 2026

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