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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
7.1
Number of Reviews
77
Ranking in other categories
CDN (1st), WAN Optimization (4th), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Domain Name System (DNS) Security (5th), Cloud Security Posture Management (CSPM) (12th)
Barracuda Web Application F...
Average Rating
8.2
Reviews Sentiment
7.1
Number of Reviews
45
Ranking in other categories
Web Application Firewall (WAF) (17th)
F5 Silverline Managed Services
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
16
Ranking in other categories
Web Application Firewall (WAF) (21st), Distributed Denial-of-Service (DDoS) Protection (14th)
 

Featured Reviews

HA
Owner at Hga consulting
Has helped manage client domains with streamlined access control and threat visibility
I don't know what areas could be improved with Cloudflare WAF; Cloudflare is constantly improving and adding features to their feature set. They're doing a good job, and as far as DNS and support for any domains that I create or my clients create, it's mandatory for me to make sure that they have Cloudflare as their DNS provider. The Cloudflare load balancing capability hasn't really helped in enhancing my website's uptime and resiliency because we don't really get that much traffic; it's mostly remote users, and web hosting is done by a web hosting service. It doesn't pay to try to host your own website.
Shahzad Abid - PeerSpot reviewer
Director Information Technology at College of Physicians & Surgeons Pakistan
Has protected our legacy applications effectively but has required constant manual filtering due to false positives
I assess the effectiveness of the machine learning-driven threat detection in Barracuda Web Application Firewall as sometimes behaving abnormally, often showing me false positive attacks, so I have to fix these attacks from time to time. From a stability point of view, I would definitely rate Barracuda Web Application Firewall a seven out of ten. There is definitely some room for improvement; nothing is perfect in the world. I am not satisfied with the technical support from Barracuda. I am somewhat disappointed with the technical support that I have received so far. Whenever I generate a ticket for my problem, it goes to the Indian support team, and they all the time start with the most junior team member, consuming all my precious time. At the end, I have to close that ticket without any satisfactory solution. I have complained that they should shift my support to any other region because I don't need Indian support; they are simply pathetic and not up to mark. To improve Barracuda Web Application Firewall, customers should be given ongoing training opportunities regarding the product and its features. I am not familiar with many features that are available, only using those which are necessary for my applications. I believe Barracuda must provide clearer product information or training sessions to make it more user-friendly, as sometimes its interface can be rigid and lacking in helpful resources or user tutorials about its features. For it to get closer to a ten, I think advanced reporting is missing because, as I mentioned earlier, there are many false positive events being recorded. Often, when I analyze these attacks, they turn out to be genuine customers or users interacting with my product, but Barracuda tags them as attackers. Reducing false positives must be a priority.
RM
Senior Network Security Consultant at a tech vendor with 10,001+ employees
Manages network threats and supports application control with ease
The best advantage of F5 Silverline Managed Services is that it is easy to use. The admin guide they provide is easy to understand and allows for implementation within a few days. The traffic manager and the monitoring tool are valuable as well. The monitoring tab displays GET and POST requests in a readable format, making it accessible even to non-tech-savvy individuals. It offers effective reports and monitoring capabilities.

Quotes from Members

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

Pros

"Cloudflare has many features."
"The solution offers the flexibility to control configuration rules."
"It's very user-friendly."
"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."
"Even when there is a high load on our servers, Cloudflare is able to cache the data and serve it to users, ensuring they can still access the website."
"Cloudflare allows us to self-host services such as Rocket.Chat and Node-RED, in high-availability mode, thanks to round robin DNS which allows us to share one hostname between our two locations."
"The overall experience with Cloudflare is positive, with a rating of eight out of ten."
"Cloudflare DNS is widely used, and it's good for websites. If we use Cloudflare DNS and update one record, it updates in their office instantly."
"Even when we were upgrading to a new OS, we didn't have any difficulties with the product. The stability is good."
"The stability of the product is good. Stability-wise, I rate the solution a ten out of ten."
"There is no one special feature, but the WAF itself is valuable: user-friendly protection against web attacks etc., authentication, reporting, accountability, alerting, and hardened OS."
"The most valuable feature is the automatic content filtering."
"If an attack is coming continuously, you can ask the device to block it temporarily for two to three minutes. F5 has not provided us with an option to block certain IPs for some time. Barracuda can help you block someone if the source is from a different IP. You can apply the rule to the device and block it for whatsoever time you want. The solution will unblock the IP after the prescribed time as well."
"The most valuable feature of this solution is the simplicity of configuration."
"The solution ensures layer seven is secure from attacks."
"The solution offers multiple security features. There are machine learning features and great URL encryption. It also offers multi-protocol support against DDoS attacks."
"The stability of the solution is very good."
"The product’s UI is easy to understand."
"The initial setup is very straightforward."
"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."
"The most valuable feature of F5 Silverline Managed Services is it becomes similar to a distributed architecture."
"It's a good front end for public infrastructure"
"The most important feature is that they have seven firewall protection, to protect our web servers."
"The most valuable feature of F5 Silverline Managed Services is its cloud-native functionality and the high level of protection it provides."
 

Cons

"The integration of LLMs on the dashboard is something that is needed in the tool."
"Support response time could be improved."
"There should be a specific price list for enterprise-level customers."
"Although I think it's quite good, it doesn't provide me with all the features I would expect to have if I were using Imperva."
"Latencies are always a problem."
"There might be helpful if there was some web application firewall feature."
"The pricing could be improved."
"It should be easier to collect the logs with companies like Sumo. However, based on my discussions with the salespeople, I understand that's how they make their money. With the enterprise product, they want people doing those kinds of enterprise features to do the logging. They want them to pay a lot of money, and that's where I have an issue with them. That should be a default. You should be able to get the log no matter what. The logging should be universal."
"I have issues with the load balancing of the solution which is slow. The connection pooling in Barracuda also doesn't work. There is an issue when someone needs access to a site quickly. The issue is with HTTPS services. I am not sure if they have changed all these in the solution’s latest version."
"The platform's pricing needs improvement."
"They should improve their features, so they easily compare to the competition."
"We get false positives about phishing emails."
"One of Barracuda's limitations is its user interface. The GUI for configuration is not intuitive and has remained largely unchanged for the past 10 to 12 years."
"There are false positives that I am receiving when compared to other WAFs. The issues with false positives affect client transactions, leading to complaints about blocked transactions."
"I would like to see better controlling of the traffic."
"The reporting aspect of the solution needs improvement. I don't find that it's very good. They could do some work on it to make it much better. It's not that the reporting isn't secure. It's just that I would prefer to store my reports for an extended period of time. Right now, that's not possible and I'd prefer it if that could change. I also would say that the reports themselves are expensive."
"I just hope the price can be cheaper."
"Improvements could include the creation of highly optimized profiles, optimization deployments, and compression profiles for better performance."
"We need to have support for cloud protection, which is not offered by this solution."
"The navigation is difficult to use."
"F5 Silverline Web Application Firewall, being a new product in the market or comparatively related to a new product, currently supports less number of PoPs. They should introduce more PoPs. The current number of PoPs that they have is around 10 or 12, which is still relatively less as compared to 2,400 plus PoPs that Akamai offers. The user latency or the number of hops a user needs before reaching the actual web application is less in Akamai because it has its internal fabric to route the traffic. They need to spin up more data to increase its traffic handling capability. They can also include the bot detection capability, though it is a pretty advanced functionality. If they could include DataDome like functionality, that is, bot prediction, then F5 Silverline Web Application Firewall will be top-notch in the market."
"The price of F5 Silverline Managed Services could be better."
"We'd like more AI to be used. Right now, they don't use it enough."
"You need to have Linux knowledge in order to use the shell."
 

Pricing and Cost Advice

"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"Cloudflare's pricing is not much higher and is good for middle-level organizations."
"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 price is reasonable."
"I think the pricing is competitive. I think as far as licensing is concerned it's pretty straightforward because it's based on domain. It's just that sometimes domains could be tricky with some customers."
"The tool is a premium product, so it is very expensive."
"There are no additional costs beyond the standard licensing fees."
"The price of this solution is okay."
"For small companies, the price is very expensive because the WAF is an enterprise-level application, not intended for smaller businesses. In my opinion, the price is right for enterprise-level use."
"The Barracuda Web Application Firewall is quite expensive."
"The pricing is reasonable."
"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."
"They only offer a yearly licensing plan."
"The price is reasonable, more so than other products."
"Cost is a bit on the higher side. Big companies can afford it."
"The product’s pricing is reasonable."
"The price of F5 Silverline Managed Services could be reduced."
"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."
"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
Computer Software Company
12%
Financial Services Firm
10%
Comms Service Provider
10%
Manufacturing Company
8%
Computer Software Company
13%
Financial Services Firm
9%
Manufacturing Company
8%
University
7%
Financial Services Firm
18%
Comms Service Provider
13%
Insurance Company
13%
Computer Software Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business25
Midsize Enterprise7
Large Enterprise11
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise2
Large Enterprise8
 

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?
I am not using the API protection feature right now because I don't host any APIs through Barracuda Web Application F...
What is your experience regarding pricing and costs for Barracuda Web Application Firewall?
At the time I was acquiring Barracuda Web Application Firewall, I found it costly compared to other products. To over...
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 quite reasonably priced, with costs being lower in comparison to competitors. On a scale where ten is...
What needs improvement with F5 Silverline Managed Services?
Automating processes could enhance F5 Silverline Managed Services. For example, introducing preemptive support prompt...
 

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: December 2025.
879,711 professionals have used our research since 2012.