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Barracuda WAF-as-a-Service vs F5 Silverline Managed Services 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
7.6
Cloudflare WAF offers quick ROI, crucial protection for e-commerce, saves bandwidth, and balances cost with valuable free features.
Sentiment score
5.5
Barracuda WAF-as-a-Service boosts ROI by enhancing security, reducing costs, and significantly increasing efficiency and productivity.
Sentiment score
6.4
F5 Silverline enhances efficiency, boosts revenue, saves time, and provides secure services without needing extra cybersecurity staffing.
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
Barracuda WAF-as-a-Service has positively impacted our organization by reducing cyber threats like ransomware and phishing by ninety-five percent.
DevOps Manager at Flash.co
For us, the biggest value comes from improved security and the reduced workload on the team, which makes the investment feel justified.
network security engineer at a outsourcing company with 11-50 employees
From an ROI and impact perspective, there is a 20 to 35% reduction in day-to-day administrative effort.
Security Practitioner at a tech vendor with 10,001+ employees
Our revenue has grown substantially after the introduction of F5 Silverline Managed Services.
Product Management Consultant at Mafoi Strategic Consultants
I have seen a return on investment in the time saved.
Cloud Support at a security firm with 51-200 employees
 

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
5.3
Barracuda WAF-as-a-Service provides highly rated customer support, though some users desire faster service for complex issues.
Sentiment score
6.3
F5 Silverline's support is praised for responsiveness but criticized for slow responses and unresolved issues, impacting satisfaction.
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
We had an incident requiring direct support, and the representatives were really helpful, resolving our query within forty-five minutes.
DevOps Manager at Flash.co
The engineers were helpful and knowledgeable, and we were able to get the guidance we needed.
network security engineer at a outsourcing company with 11-50 employees
I would rate Barracuda WAF-as-a-Service customer support as a nine on a scale of one to ten.
Networking Admin at a tech company with 51-200 employees
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
 

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
5.8
Barracuda WAF-as-a-Service offers seamless scalability, enabling easy application expansion and management for cloud environments without significant issues.
Sentiment score
7.2
F5 Silverline Managed Services offers scalable solutions for various user bases with easy upgrades, despite some complexity in packet management.
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
Scalability is good for Barracuda WAF-as-a-Service; we can scale up or down based on our needs.
DevOps Manager at Flash.co
As our needs have grown and we have added more applications, it has handled this expansion without creating extra management overhead.
network security engineer at a outsourcing company with 11-50 employees
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
F5 Silverline Managed Services has elastic scalability, handling immense traffic spikes effectively.
Lead Engineer at a renewables & environment company with 10,001+ employees
 

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
7.7
Barracuda WAF-as-a-Service stability ratings vary, with some downtime reports; accuracy praised for minimal false positives.
Sentiment score
7.6
F5 Silverline is praised for reliable stability, effective incident monitoring, and surpasses competitors with regular updates and support.
The stability of Cloudflare Web Application Firewall deserves a perfect 10 out of 10.
IT Manager at Amla Commerce
We have not faced any downtime, crashes, or lag.
DevOps Manager at Flash.co
Barracuda WAF-as-a-Service is extremely accurate in detection and reporting, and I find very few false positives.
Security Practitioner at a tech vendor with 10,001+ employees
Barracuda WAF-as-a-Service has been stable in our experience, and we have not faced any major downtime or service-impacting issues.
network security engineer at a outsourcing company with 11-50 employees
I have not seen anything suspicious with its accuracy or output.
Product Management Consultant at Mafoi Strategic Consultants
 

Room For Improvement

Cloudflare WAF needs feature enhancements, better usability, improved support, advanced DDoS protection, and solutions for latency and alerts.
Barracuda WAF-as-a-Service requires improvements in data residency, UI, reliability, pricing, API integration, and policy customization.
F5 Silverline Managed Services requires improvements in deployment speed, pricing, global presence, interface, APIs, stability, and compliance features.
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
The ROI they have given us is tremendous, and they are doing really well in terms of product, scalability, and service.
DevOps Manager at Flash.co
Modernizing the UI further, simplifying packaging and licensing clarity, enhancing the executive reporting and risk dashboard, and expanding broader cloud-native integration would be beneficial improvements.
Security Practitioner at a tech vendor with 10,001+ employees
There is one issue regarding local data storage, as they do not have that capability, and we are storing the data in another foreign country, which is against the law.
IT Project Manager at Brilliant telecommunications
F5 Silverline Managed Services needs to adapt compliances related to India's DPDP.
Associate Vice President at Novac Technology Solutions
Localized support could enhance F5 Silverline Managed Services.
Cloud Support at a security firm with 51-200 employees
Improvements could include the creation of highly optimized profiles.
Design & Delivery Senior Network Security Architect at Qiddiya Investment Company
 

Setup Cost

Cloudflare Web Application Firewall offers affordable, flexible pricing with no upfront costs, noted for competitiveness and included support services.
Enterprise users appreciate Barracuda WAF-as-a-Service for its cost-effective, flexible AWS Marketplace billing and ease of management.
Enterprise buyers have mixed views on F5 Silverline pricing due to variable costs and potential discounts but appreciate its performance.
This system allows us to pay only for what we use, saving a lot of money, so I give it a ten out of ten as it is both a money and time saver for the organization.
DevOps Manager at Flash.co
Barracuda service is customizable but external references note that licensing and cost planning can become complex.
Security Practitioner at a tech vendor with 10,001+ employees
While it may not be the cheapest solution available, we believe the security, ease of management, and operational benefits provide good value for the investment.
network security engineer at a outsourcing company with 11-50 employees
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
My experience with pricing, setup cost, and licensing was good, as it was easy to use and choose.
Lead Engineer at a renewables & environment company with 10,001+ employees
 

Valuable Features

Cloudflare Web Application Firewall provides comprehensive security features, easy setup, scalability, and competitive pricing with praised performance and stability.
Cloud-based security offers real-time threat detection, API security, easy deployment, reducing downtime and enhancing resilience against attacks.
F5 Silverline provides continuous DDoS protection, WAF, and fraud defense, enhancing security and performance with real-time threat intelligence.
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
The centralized dashboard is helping us streamline visibility across our admin panels and provides site-to-site visibility deployed directly to our AWS environment, securing VPC traffic and ensuring the firewall is in place.
DevOps Manager at Flash.co
One of the strongest points is the speed of deployment, which features a three-step deployment wizard, pre-built templates, and quick onboarding, making it suitable for teams that want protection fast without complex infrastructure setup.
Security Practitioner at a tech vendor with 10,001+ employees
I particularly appreciate its ability to automatically detect and block common web attacks such as SQL injection, XSS, and bot-based threats without requiring manual intervention.
network security engineer at a outsourcing company with 11-50 employees
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
F5 Silverline Managed Services has positively impacted my organization by drastically helping us during a major DDoS attempt or web scraping that was detected, where F5 handled the triage and mitigation entirely.
Lead Engineer at a renewables & environment company with 10,001+ employees
 

Categories and Ranking

Cloudflare Web Application ...
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Ranking in Web Application Firewall (WAF)
7th
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
26
Ranking in other categories
No ranking in other categories
Barracuda WAF-as-a-Service
Ranking in Web Application Firewall (WAF)
21st
Average Rating
7.8
Reviews Sentiment
5.7
Number of Reviews
14
Ranking in other categories
No ranking in other categories
F5 Silverline Managed Services
Ranking in Web Application Firewall (WAF)
18th
Average Rating
8.0
Reviews Sentiment
6.6
Number of Reviews
19
Ranking in other categories
Distributed Denial-of-Service (DDoS) Protection (6th)
 

Mindshare comparison

As of July 2026, in the Web Application Firewall (WAF) category, the mindshare of Cloudflare Web Application Firewall is 4.0%, down from 5.8% compared to the previous year. The mindshare of Barracuda WAF-as-a-Service is 0.9%, up from 0.7% compared to the previous year. The mindshare of F5 Silverline Managed Services is 1.5%, up from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Application Firewall (WAF) Mindshare Distribution
ProductMindshare (%)
Cloudflare Web Application Firewall4.0%
F5 Silverline Managed Services1.5%
Barracuda WAF-as-a-Service0.9%
Other93.6%
Web Application Firewall (WAF)
 

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.
Samir Paul - PeerSpot reviewer
Security Practitioner at a tech vendor with 10,001+ employees
Cloud WAF has protected critical web apps and APIs and delivers fast bot and DDoS defense
Regarding improvements for Barracuda WAF-as-a-Service, the UI and user experience can feel dated. While the interface is functional and centralized, some third-party reviews indicate that the UI can feel outdated, and enhancements are required to provide an executive look that can be aligned with modern and intuitive next-generation competitors. The licensing and cost structure perspective may need clear planning. Barracuda service is customizable but external references note that licensing and cost planning can become complex. Advanced analytics and executive reporting could be better. The platform provides visibility and compliance reporting but organizations looking for a very polished executive dashboard, deep attack visualization, or broader cloud-native security context may find it more focused on WAF operation. Barracuda WAF-as-a-Service is best suited for app and API protection and is not a full CNAPP platform. It is strong for application layer protection but is not positioned as a full CNAPP covering posture management. Modernizing the UI further, simplifying packaging and licensing clarity, enhancing the executive reporting and risk dashboard, and expanding broader cloud-native integration would be beneficial improvements.
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.
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Top Industries

By visitors reading reviews
Construction Company
17%
Financial Services Firm
9%
Comms Service Provider
9%
Manufacturing Company
7%
Financial Services Firm
12%
Computer Software Company
11%
Outsourcing Company
9%
Security Firm
7%
Financial Services Firm
16%
Comms Service Provider
14%
Insurance Company
9%
Construction Company
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 Business13
Midsize Enterprise2
Large Enterprise6
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise11
 

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...
What needs improvement with Barracuda WAF-as-a-Service?
Regarding improvements for Barracuda WAF-as-a-Service, the UI and user experience can feel dated. While the interface...
What is your primary use case for Barracuda WAF-as-a-Service?
My main use case for Barracuda WAF-as-a-Service is protecting web applications running on HTTP and HTTPS sockets from...
What advice do you have for others considering Barracuda WAF-as-a-Service?
Barracuda WAF-as-a-Service is best suited for app and API protection and is not a full CNAPP platform. It is strong f...
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?
One thing that was a hassle for us regarding F5 Silverline Managed Services was the deployment of this particular sof...
 

Also Known As

Cloudflare WAF
Barracuda WAF as a Service
F5 Silverline Web Application Firewall, F5 Silverline DDoS Protection
 

Overview

 

Sample Customers

crunchbase, udacity, marketo, okcupid, zendesk
Salvation Army
City Bank, Ricacorp Properties, Miele, American Systems, Bangladesh Post Office
Find out what your peers are saying about Barracuda WAF-as-a-Service vs. F5 Silverline Managed Services and other solutions. Updated: June 2026.
902,894 professionals have used our research since 2012.