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F5 Silverline Managed Services 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
7.6
Cloudflare WAF offers quick ROI, crucial protection for e-commerce, saves bandwidth, and balances cost with valuable free features.
Sentiment score
5.1
F5 Silverline Managed Services provides cost and time savings by replacing in-house cybersecurity, achieving varied ROI for users.
Sentiment score
5.0
Fortinet FortiADC offers reliable web traffic management with strong support, but users find WAF functionality could improve usability.
My experience with the pricing or licensing of Cloudflare Web Application Firewall is that many features can be accessed for free, so the pricing is definitely reasonable.
Owner at Hga consulting
The alert system is efficient, sending alerts within a fraction of a second if any power issues arise.
Senior Network Engineer at SP SYSNET PTE. LTD.
 

Customer Service

Sentiment score
6.3
Cloudflare WAF support is mixed; responsive for some, but Indian customers face call availability and administrative issues.
Sentiment score
6.2
F5 Silverline Managed Services experiences mixed reviews; some praise responsiveness, others criticize inefficiencies and slow issue resolution.
Sentiment score
6.2
Fortinet FortiADC's support experiences vary, with praise for professionalism but issues with response times and license-related impacts.
I would rate the technical support with Cloudflare as excellent every time I've had to contact them.
Owner at Hga consulting
The technical support of Cloudflare Web Application Firewall rates between five and seven at maximum.
IT Manager at Amla Commerce
I think 24/7 expert support and streamlined compliance management definitely benefit my company's security efforts.
Associate Vice President at Novac Technology Solutions
Configuration problems largely arise from customer misunderstanding, leading to cases opened for configuration aspects where AI has become increasingly useful.
Network And Security Consultant at TD SYNNEX
They resolve the issues by joining me to fix them.
Design & Delivery Senior Network Security Architect at Qiddiya Investment Company
The support team is knowledgeable and efficiently assists with automation and configuration problems.
Security Network Architect at Inmac
It varies depending on the engineer assigned; in most cases, we resolve issues on the first attempt.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
Fortinet technical support is very good, and they provide us with better support.
Team Lead at Adapt Information Technologies (Pvt) Ltd
 

Scalability Issues

Sentiment score
7.7
Cloudflare Web Application Firewall offers impressive scalability and automated management, but additional features may incur costs for smaller organizations.
Sentiment score
7.4
F5 Silverline Managed Services offers scalable solutions with easy upgrades and reliability for both moderate and extensive data demands.
Sentiment score
7.4
Fortinet FortiADC is scalable with virtual, cloud, and hardware models, but accurate initial sizing is crucial for expansion.
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 Manager at Amla Commerce
The solution is fully scalable, and I would give it a rating of ten on a scale of one to ten for scalability.
Design & Delivery Senior Network Security Architect at Qiddiya Investment Company
F5 Silverline Managed Services is not a concern due to its scalability.
Associate Vice President at Novac Technology Solutions
For those opting for a SaaS or cloud solution, there is scalability and flexibility.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
It is scalable for some versions, however, as components reach their end of support, upgrades are necessary to maintain scalability.
Security Network Architect at Inmac
 

Stability Issues

Sentiment score
8.2
Cloudflare Web Application Firewall is praised for stability, high performance, effective protection, daily use, and minimal downtime.
Sentiment score
7.4
F5 Silverline is praised for stability, reliability, high uptime, and effective support, outperforming competitors like Imperva and Akamai.
Sentiment score
8.2
Fortinet FortiADC is highly stable and reliable, with responsive support, despite minor bugs occasionally introduced by firmware updates.
The stability of Cloudflare Web Application Firewall deserves a perfect 10 out of 10.
IT Manager at Amla Commerce
The support system is reliable when issues like automation or configuration arise.
Security Network Architect at Inmac
Overall, it has been good; in the past it was very good, and now it is still performing well.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
We have two applications in two ESXi hosts that I integrated into our ADC, and I created one virtual IP in the virtual server pool.
Team Lead at Adapt Information Technologies (Pvt) Ltd
 

Room For Improvement

Cloudflare WAF needs feature enhancements, better usability, improved support, advanced DDoS protection, and solutions for latency and alerts.
F5 Silverline Managed Services needs better integration, user interface, and advanced features, with concerns over stability, pricing, and automation.
Fortinet FortiADC users seek better support, documentation, and features, including load-balancing, security, interface, and resource optimization improvements.
The product can improve by having more multitenancy capability, which is currently not available.
Network Architect at a computer software company with 11-50 employees
I think they're doing a good job with DNS and as support for any domains that I create or that my clients create, it's mandatory for me to ensure they have Cloudflare as their DNS provider.
Owner at Hga consulting
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.
CTO at PlayNirvana
F5 Silverline Managed Services needs to adapt compliances related to India's DPDP.
Associate Vice President at Novac Technology Solutions
Improvements could include the creation of highly optimized profiles.
Design & Delivery Senior Network Security Architect at Qiddiya Investment Company
The adaptable and flexible security can help prevent threats in learning mode, but admins need to be cautious about false positives that could affect production due to unrecognized vulnerabilities.
Network And Security Consultant at TD SYNNEX
Fortinet has been a pioneer for enterprise solutions, such as firewalls, SASE, ZTNA, and SD-WAN solutions, and they are in a leader quadrant.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
The limitation of managing all components and the differing versions pose challenges.
Security Network Architect at Inmac
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.
Senior Network Engineer at SP SYSNET PTE. LTD.
 

Setup Cost

Cloudflare Web Application Firewall offers affordable, flexible pricing with no upfront costs, noted for competitiveness and included support services.
F5 Silverline Managed Services offer negotiable pricing, potentially higher than competitors, with additional costs for features like Web Application Firewall.
Fortinet FortiADC offers competitive, predictable pricing with flexible licensing options, appealing to both small businesses and large enterprises.
The solution is expensive
Design & Delivery Senior Network Security Architect at Qiddiya Investment Company
Regarding the pricing of F5 Silverline Managed Services, I would say it is quite affordable.
Associate Vice President at Novac Technology Solutions
This solution is quite expensive compared to Kemp.
Senior Network Engineer at SP SYSNET PTE. LTD.
 

Valuable Features

Cloudflare Web Application Firewall provides comprehensive security features, easy setup, scalability, and competitive pricing with praised performance and stability.
F5 Silverline Managed Services provides advanced security and traffic management with user-friendly features, real-time intelligence, and robust DDoS protection.
Fortinet FortiADC offers features like SSL offloading and load balancing, valued for simplicity, scalability, affordability, and integration.
The custom rules and the geo-redundant geographical rule feature, which allows me to implement geographical rules for customers, add significant value.
Network Architect at a computer software company with 11-50 employees
The best features of Cloudflare Web Application Firewall are multiple, including the WAF, rate limiter, and bot attack protection.
IT Manager at Amla Commerce
Cloudflare Web Application Firewall's advanced reporting and analytics tools add a layer that we're able to visualize and see before it actually hits the local firewall.
Owner at Hga consulting
It allows for centralized management of certificates, protecting applications from top ten attacks like SQL injection and cross-site scripting.
Design & Delivery Senior Network Security Architect at Qiddiya Investment Company
One part is positive security, which allows you to know vulnerabilities in depth, and you can implement CAPTCHA and MFA for logins, while also preventing known threats with included signatures.
Network And Security Consultant at TD SYNNEX
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.
Associate Vice President at Novac Technology Solutions
I use server load balancing and employ layer seven features, which provide more granular traffic shaping and detailed logs.
Senior Network Engineer at SP SYSNET PTE. LTD.
When integrated with FortiAnalyzer, it has much more significance.
Senior Technical Engineer at Safezone Secure Solutions Private Limited
The implementation process is straightforward, and cluster implementation is also very easy.
Team Lead at Adapt Information Technologies (Pvt) Ltd
 

Categories and Ranking

Cloudflare Web Application ...
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Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
26
Ranking in other categories
Web Application Firewall (WAF) (7th)
F5 Silverline Managed Services
Average Rating
7.8
Reviews Sentiment
6.6
Number of Reviews
16
Ranking in other categories
Web Application Firewall (WAF) (21st), Distributed Denial-of-Service (DDoS) Protection (14th)
Fortinet FortiADC
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
25
Ranking in other categories
Application Delivery Controllers (ADC) (5th)
 

Mindshare comparison

Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
F5 Silverline Managed Services1.4%
Imperva Application Security Platform8.1%
Fortinet FortiWeb7.5%
Other83.0%
Web Application Firewall (WAF)
Application Delivery Controllers (ADC) Mindshare Distribution
ProductMindshare (%)
Fortinet FortiADC9.7%
F5 BIG-IP Local Traffic Manager (LTM)14.3%
NetScaler12.7%
Other63.3%
Application Delivery Controllers (ADC)
 

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.
Mohan Janarthanan - PeerSpot reviewer
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.
GANESAN K - PeerSpot reviewer
Senior Technical Engineer at Safezone Secure Solutions Private Limited
Has supported load balancing for medical applications and could benefit from more custom configuration options
Some customers need custom management for handling their applications across the servers. Instead of having a predefined solution, if we had space for custom-based algorithms to load balance the traffic, it would be better. We have faced such cases with A10, where we can leverage many custom scripts and do much more. Even though A10 primarily focuses on SMBs, they have also ventured into the enterprise market. Fortinet has been a pioneer for enterprise solutions, such as firewalls, SASE, ZTNA, and SD-WAN solutions, and they are in a leader quadrant. Therefore, they should have more options. From a pricing perspective, it is expensive.
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Top Industries

By visitors reading reviews
Construction Company
18%
Financial Services Firm
9%
Computer Software Company
8%
Comms Service Provider
8%
Financial Services Firm
19%
Comms Service Provider
13%
Insurance Company
11%
Computer Software Company
6%
Computer Software Company
10%
Financial Services Firm
10%
Government
9%
Comms Service Provider
6%
 

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 Business6
Midsize Enterprise3
Large Enterprise9
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise4
Large Enterprise7
 

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...
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...
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.
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...
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 is your experience regarding pricing and costs for Fortinet FortiADC?
Pricing is not considered on our side since we are the implementation team. Our pre-sales team considers the pricing ...
What needs improvement with Fortinet FortiADC?
I did not explore the advanced features as I only performed load balancing in the application and cluster implementat...
 

Also Known As

Cloudflare WAF
F5 Silverline Web Application Firewall, F5 Silverline DDoS Protection
FortiADC Application Delivery Controller, FortiADC
 

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
City Bank, Ricacorp Properties, Miele, American Systems, Bangladesh Post Office
Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Find out what your peers are saying about Fortinet, F5, Imperva and others in Web Application Firewall (WAF). Updated: March 2026.
885,837 professionals have used our research since 2012.