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Barracuda Web Application Firewall 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:
 

Categories and Ranking

Cloudflare
Sponsored
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
75
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (14th)
Barracuda Web Application F...
Average Rating
8.2
Reviews Sentiment
7.5
Number of Reviews
44
Ranking in other categories
Web Application Firewall (WAF) (18th)
F5 Silverline Managed Services
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
16
Ranking in other categories
Web Application Firewall (WAF) (25th), Distributed Denial-of-Service (DDoS) Protection (15th)
 

Featured Reviews

Spencer Malmad - PeerSpot reviewer
It's easy to set up because you point the DNS to it, and it's working in under 15 minutes
Cloudflare is highly scalable. Cloudflare is a system with a web portal that the end users like me see. It's a console where we can adjust the DNS, caching, and security features all in that console. Cloudflare owns thousands of servers across the world that cache the data. It's a powerful solution. When clients sign up for Cloudflare, they're getting this monster content delivery network, security, and a web application firewall in one. It's all rolled into one, and it's massive. Unless you have your website hosted on a massive hosting provider, there's no way that you can deliver the amount of data that Cloudflare can provide to the end users. If you have static content, there's no way that you can ever match what Cloudflare can do. Obviously, there are competitors to Cloudflare that do the same, but I'm saying other types of solutions. Let's say you go with F5. Great, that's on-prem. That's in your colo. You can't deliver as much data to the internet as you can with a CDN. You don't have to spend $20,000 on a net scaler, F5, or whatever Cisco's selling now. You don't have to buy that. You pay them $50 a month or $150 a month. It's totally worth it because even in five years, you'll never get the performance value, not just the actual ROI. You have to consider how much throughput you can get with Cloudflare.
Anne-Aimee Wollerich - PeerSpot reviewer
Managing bot traffic effectively enhances usability for non-technical users
Barracuda Web Application Firewall ( /products/barracuda-web-application-firewall-reviews ) lacks some of the more specified and structured features offered by solutions like Tenable. Although Tenable is more expensive and less easily deployable, its features are more deepened and chiseled, particularly for IT personnel. For example, Tenable provides more comprehensive dark web scanning capabilities, which Barracuda could improve upon.
DejanBlagojevic - PeerSpot reviewer
Mitigates more bot activity when defending web applications than any other vendor but comes at a price
F5 Silverline Managed Services is expensive. You do get world-class quality of mitigation, but I think it is still pricey. You can find similar services, potentially of slightly lower quality, from other vendors like Cloudflare or Akamai for about half the price. When you compare what you get for the money you spend at Cloudflare or Akamai, you do get less protection but you are not dishing out too much for it. On the other hand, at F5 Silverline Managed Services, you do get better protection but, but you are paying double for it. We have had mixed feedback from our clients about this. Most of them would rather pay less for a bit of a lower-quality defense than overshoot their budget. The most common piece of feedback we receive is that the difference in protection levels is not reflected in the price.

Quotes from Members

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

Pros

"The most valuable feature of Cloudflare is the GUI. You are able to control the solution very well through the interface. There is a lot of functionality that is embedded in the service."
"Smaller businesses have seen great ROI due to the low investment and strong performance."
"The simplicity of the overall dashboard makes it a great product for a user like me who has less understanding of the internet than a developer or other more technical people. It gives me peace of mind. I also love the easy customization of the Page Rules."
"DDoS attacks target unprotected machines. Cloudflare detects and stops these attacks using internal systems. It identifies incoming DDoS attacks, issuing challenges or blocking them immediately."
"Cloudflare consolidates various capabilities into one product, streamlining processes."
"The solution offers the flexibility to control configuration rules."
"The DDoS protection is the most valuable aspect of the solution."
"It is a fast and secure DNS."
"Has a good dashboard."
"The updating and signature features are my primary use case for the solution. These features are beneficial to my organization."
"One of the strongest points is its robust issue discovery capabilities. Barracuda invests significant efforts in identifying and resolving issues. They have multiple products that work in tandem to perform these checks, which is beneficial because it automates security updates. This is the primary reason I recommend it to my customers."
"The product's advanced bot and threat protection capabilities are valuable."
"I find the solution very stable."
"The most valuable feature is the automatic content filtering."
"Its recommendation about the probabilities on the website is great. It also has free probability managers for the website, which is really helpful. The protection engine, signature-based protection behavior, and analysis features are also great. It also has an ATP module for sandbox scanning and behavior analysis for file uploads."
"It's very simple and predictable, because Barracuda provides a vision of the current state of your application. It gives you an understanding of what is happening on your site and any attempts against you at your source. This is the main value that Web Application Firewall provides our company. These aspects are also the main reason for this documentation process."
"The product’s UI is easy to understand."
"The most valuable feature is flexibility."
"The most valuable feature of F5 Silverline Managed Services is its cloud-native functionality and the high level of protection it provides."
"The most important feature is that they have seven firewall protection, to protect our web servers."
"Its flexibility is the most valuable because it is a managed service. The good part is that you don't need to set it up. It just needs DNS routing, which is the easiest thing. Our client had Akamai for certain websites because they were using CDN features. They had NetScaler on the internal zone, F5 AWAFs on the data centers, and no WAF at all in the cloud. One of the main activities of the project was to move all these policies into a single WAF so that we could control and use that as a choke point. That exercise itself was very easy because it was a managed service and F5 Silverline Web Application Firewall does that for you. That's the best thing about F5 Silverline Web Application Firewall. It is easy to apply policies on-premises. If you have AWAF on-premises and you want to replicate some policies on F5 Silverline Web Application Firewall, other than the policies that it applies by itself, it is easy because you have a team that supports it. F5 Silverline Web Application Firewall works perfectly fine. It pretty much does everything that an Advanced WAF on-premises should do."
"The best advantage of F5 Silverline Managed Services is that it is easy to use."
"The most valuable features are the configuration and configuring the process."
"The most valuable feature of F5 Silverline Managed Services is the benchmark performance."
 

Cons

"It would be helpful if the solution could continue evolving to compete with the other solutions on the market."
"Latencies are always a problem."
"We have noticed multiple instances where Cloudflare falsely indicates that our servers are down, even when there is no actual load on them. This makes it challenging for us to identify the exact issue."
"The solution could use more analytics on the backend to give us more insights into everything. More reports would be helpful."
"DNS Management."
"Sometimes their more advanced caching tools can cause higher first-byte times and problems with JavaScript."
"There are some issues with the CDN services."
"We're facing challenges due to an upgrade in the machine learning model. The problem arises from some users abusing the APIs, resulting in an influx of suspicious traffic. Cloudflare's learning model mistakenly identifies this traffic as human. Consequently, it assigns it a higher trust score, akin to legitimate human traffic, causing complications in our architecture. Previously, such traffic would have been categorized as suspicious, enabling us to apply appropriate blocking rules. However, we encounter difficulties distinguishing between genuine and suspicious traffic with the new categorization. Despite these challenges, overall, Cloudflare remains the preferred solution compared to Azure, AWS CloudFront, and Google Cloud Armor."
"An area for improvement in Barracuda Web Application Firewall is attack identification. Other banks identified attacks and tracked logs that the solution wasn't able to identify because of its ready-made rules pre-deployed by the vendor. My organization raised this issue with the technical support team. Another area to improve in Barracuda Web Application Firewall is its service desk. The team resorted to stonewalling because they couldn't accept that a feature was missing in the solution, and it was only after a lot of drilling down that the service desk team accepted that, and would be adding that feature in the future. My organization had to submit a report to the Reserve Bank of India with information on the logs identified and the attacks that happened, and that there was a failure on the part of the Barracuda Web Application Firewall. The Reserve Bank of India conducts a tri-monthly cyber risk audit in all Indian banks. Even smaller banks identified and caught attacks that my organization wasn't able to do, so I was looking into other solutions that competitor banks could be using because Barracuda Web Application Firewall failed to identify some of the attacks."
"I think the main area for improvement in this product is learning it, as can be seen when comparing it to the F5 web application firewall. F5 has a very powerful learning phase when you start using your web application firewall against your site. Barracuda has something like this, but not with the same functionality from my point of view."
"There are issues when upgrading firewalls and we experience different issues across customers."
"The platform's pricing needs improvement."
"The policy updates could be improved."
"The solution needs to leverage some additional features to a broader scale of software-defined networks."
"The solution could use more reports."
"There are false positives that I am receiving when compared to other WAFs."
"You need to have Linux knowledge in order to use the shell."
"F5 Silverline Managed Services can improve by adding features that Palo Alto has."
"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."
"We need to have support for cloud protection, which is not offered by this solution."
"The navigation is difficult to use."
"There is room for improvement in the stability of the solution."
"We'd like more AI to be used. Right now, they don't use it enough."
"Sometimes tech support can be slow. They take more time assigning engineers to complex issues, however, they resolve the issues by joining me to fix them."
 

Pricing and Cost Advice

"A free version of the solution is available."
"It's a premium model. You can start at zero and work your way up to the enterprise model, which has a very high pricing level."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."
"We don't have any issues with the price."
"In terms of licensing costs, we don't pay for licensing for Cloudflare. We only establish communication, then for peering, Cloudflare takes care of the cross-connection in different data centers."
"I believe their performance has improved, but I'd like to refrain from discussing the pricing aspect related to the cloud. The pricing, in my opinion, could be simplified, and I think they should consider reevaluating the pricing for support, as it can be quite high. At times, this cost can make it challenging to choose CARFAGuard or opt for the support."
"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."
"The price of the solution is a little expensive. There is a license for this solution and it can be purchased every one, two, or five years."
"The price of this solution is okay."
"The Barracuda Web Application Firewall is quite expensive."
"While I would have to check on the price of the solution, I feel it to be okay and it matches the market price."
"Cost is a bit on the higher side. Big companies can afford it."
"The pricing is less compared to other web applications."
"Barracuda costs us $8,000 per year. Barracuda costs $20,000 for a full subscription, when you try to protect multi-site infrastructure, in different geographical zones and for different data centers. If you have only one site, Barracuda will be cheaper."
"The product is expensive."
"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."
"The price of F5 Silverline Managed Services could be reduced."
"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."
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Top Industries

By visitors reading reviews
Educational Organization
17%
Computer Software Company
14%
Comms Service Provider
9%
Financial Services Firm
8%
Computer Software Company
20%
Financial Services Firm
10%
Government
7%
Educational Organization
6%
Financial Services Firm
21%
Insurance Company
13%
Computer Software Company
12%
Comms Service Provider
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 Barracuda Web Application Firewall?
It significantly improved our overall web security posture, addressing intrusions and enhancing control over web URLs...
What is your primary use case for Barracuda Web Application Firewall?
Our primary use case was to track the traffic on websites or webshops to identify potential malicious actors, such as...
What is your experience regarding pricing and costs for Barracuda Web Application Firewall?
The pricing for Barracuda is quite high compared to other OEMs. Each transaction requires my purchase team to negotia...
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?
The solution is expensive, however, the quality and performance are good.
 

Also Known As

Cloudflare DNS
No data available
F5 Silverline Web Application Firewall, F5 Silverline DDoS Protection
 

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.
Oracle, CBS, Pioneer, Hyundai, Publix, Barnes Noble, Calzedonia, Nordstrom, Samsung, Nascar
City Bank, Ricacorp Properties, Miele, American Systems, Bangladesh Post Office
Find out what your peers are saying about Barracuda Web Application Firewall vs. F5 Silverline Managed Services and other solutions. Updated: April 2025.
849,963 professionals have used our research since 2012.