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F5 Silverline Managed Services vs Radware DDoS Protection Service comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 30, 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
Ranking in Distributed Denial-of-Service (DDoS) Protection
1st
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
75
Ranking in other categories
CDN (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (14th)
F5 Silverline Managed Services
Ranking in Distributed Denial-of-Service (DDoS) Protection
15th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
16
Ranking in other categories
Web Application Firewall (WAF) (25th)
Radware DDoS Protection Ser...
Ranking in Distributed Denial-of-Service (DDoS) Protection
2nd
Average Rating
8.8
Reviews Sentiment
7.0
Number of Reviews
37
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 19.6%, up from 19.2% compared to the previous year. The mindshare of F5 Silverline Managed Services is 1.3%, down from 2.4% compared to the previous year. The mindshare of Radware DDoS Protection Service is 8.4%, up from 7.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection
 

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.
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.
Ajay Tyagi - PeerSpot reviewer
Successfully protects from DDoS attacks
The product is good, but the company could improve its services by appointing customer success managers. This would ensure better interaction with customers and help resolve issues on both customer and supplier ends. Most other security product companies such as Palo Alto and Forcepoint appoint customer success managers to interact with customers and ensure that the product they have purchased is used perfectly. If we are facing any kind of issues in using the product or service, the customer success manager should get things right.

Quotes from Members

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

Pros

"The solution provides good load balancing and protection against DDoS attacks."
"It is a fast and secure DNS."
"The most valuable feature is its usability."
"The most valuable feature is its usability."
"Cloudflare has many features."
"There are key things that are used for our enterprise customers, such as Lambda and DNS."
"From what I've seen so far, there are no negatives to report as of yet"
"Smaller businesses have seen great ROI due to the low investment and strong performance."
"The best advantage of F5 Silverline Managed Services is that it is easy to use."
"The most valuable feature of F5 Silverline Managed Services is the benchmark performance."
"The initial setup is very straightforward."
"F5 technical support is really good."
"The initial setup is straightforward."
"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."
"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 features are the configuration and configuring the process."
"DDoS Protection Service provides excellent defense in the cloud, and the implementation and migration are very straightforward."
"They have a hybrid model approach if a client wants to go that way."
"SSL-based mitigation from DDoS attacks is good from their side. They are capable of preventing SSL-based attacks with certifications and everything loaded onto them."
"The reporting is very good and provides us with a comprehensive description of where attacks are emanating from."
"Its functionality is very good."
"Radware's support is first class."
"Recently, our company has been facing difficulties due to attacks originating from the Russian Federation. DefenseFlow has proven to be a highly effective solution in protecting our customers."
"Radware DefensePro is one of the best solutions for on-premise protection."
 

Cons

"It would be beneficial for us if Cloudflare could offer a scrubbing solution. This would involve taking a snapshot of my website and keeping it live during a DDoS attack, ensuring uninterrupted service for our users. DDoS attacks are typically short in duration, and having Cloudflare maintain the site's availability from its secure network would enhance the overall user experience. I would appreciate it if Cloudflare could consider implementing this feature. Many organizations already utilize similar capabilities in their CDN platforms, where a static snapshot of the web page is displayed during DDoS attacks. In terms of features, Cloudflare needs to enhance its resilience and stay more focused on adopting new technologies. For instance, solutions like F5 XC Box, Access Solution, and Distributed Cloud Solution have impressive features, and Cloudflare should strive to match and exceed those capabilities. There's a need for improvement in areas like AI-based DDoS attacks and Layer 7 WAF features. Cloudflare should prioritize enhancements in areas such as behavioral DDoS and protection against SQL injection attacks, considering the prevalent trend of public exposure to the internet for business reasons. Overall, Cloudflare needs to invest more in advancing its feature set."
"The analytics, basically the dashboard, doesn't have much to it."
"Latencies are always a problem."
"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."
"I think the APIs are a little bit hard for us to work with. The APIs could be more open so that we could integrate better with our SolarWinds or our monitoring solution."
"There are some issues with the CDN services."
"Integration involving API with other products could be more user-friendly."
"The timing aspect can lead to it being considered overpriced. This is a particular concern we have with Cloudflare, as they may struggle with accurately detecting the client."
"The product could be improved on the global load and the integration with the other solution like Cisco and Dell. As a representor of the operation, we prefer to have one platform which can accommodate all type of integration. We are also looking for more improvements in the security policy configuration."
"F5 Silverline Managed Services can improve by adding features that Palo Alto has."
"I just hope the price can be cheaper."
"Automating processes could enhance F5 Silverline Managed Services."
"There is a lot of room for improvement with their tech support. I am not sure F5 Silverline Managed Services can be classified as having tech support."
"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."
"We'd like more AI to be used. Right now, they don't use it enough."
"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."
"APSolute Vision needs to be more granular so that it's possible to get real-time information."
"The inability to access local technical support during our business hours poses a significant inconvenience."
"I want to improve the blocking time; it should be within 10 seconds because 18 seconds allows multiple transactions in the financial industry."
"It would be ideal if they could expand protocol support to cover emerging communication standards and ensure comprehensive protection against diverse attack vectors."
"The solution needs a bit more functionality. It would be good if DefensePro could have anti-bot functionalities in order to stop bots like web scrapers from getting onto our customers’ network."
"There needs to be more reporting."
"To improve my ability to monitor security events, I would like Radware to strengthen its integration with SIEM for better logging capabilities."
"The APSolute Vision feature needs improvement."
 

Pricing and Cost Advice

"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."
"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."
"So far I use free tier and happy with it. You can subscribe to business package if needed."
"The solution has many features but there are ones that you need to pay for. Sometimes you have to find out which is available for free and which you have to pay for."
"A free version of the solution is available."
"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."
"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 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."
"The cost for maintenance is cheaper because the majority of the deployments using the solution are in areas where cost of maintenance is also lower."
"Radware DefensePro is a bit on the expensive side."
"The product's pricing is a good value."
"The price was well over six figures."
"The pricing is based on the amount of network traffic and the number of packets being inspected."
"I rate Radware DefenseFlow's pricing an eight out of ten."
"The licensing cost is about $50,000."
"The NetFlow security could be improved too."
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Answers from the Community

AS
Jun 2, 2021
Jun 2, 2021
I highly recommend Cloudflare. We switched from Akamai Prolexic to Cloudflare and couldn't be happier. We also got the worlds fastest DNS and speeded up our site load times with the 200+ edge locations near to our customers.
2 out of 5 answers
EW
Dec 23, 2020
You can have a look to Imperva Cloud WAF, the anti-DDoS mitigation is under 1s and works very well. I observed a lot of DDoS attacks that were well managed (even not seen by the customer) by Imperva, I can recommend it (try it with a trial, you'll be able to have your own opinion).
ML
Mar 15, 2021
In case you are considering a fully automated Cloud solution for DDoS Protection, BGP based, I can help with information on Voxility Anti-DDoS. 
 

Top Industries

By visitors reading reviews
Educational Organization
17%
Computer Software Company
14%
Comms Service Provider
9%
Financial Services Firm
8%
Financial Services Firm
21%
Insurance Company
13%
Computer Software Company
12%
Comms Service Provider
10%
Educational Organization
39%
Computer Software Company
13%
Financial Services Firm
8%
Comms Service Provider
7%
 

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.
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.
What do you like most about Radware Cloud DDoS Protection Service?
The most important part is that Radware DDoS integrates seamlessly and provides anomaly identification, real-time not...
What is your experience regarding pricing and costs for Radware Cloud DDoS Protection Service?
The pricing is okay, and I do not have any concerns about the price. To someone who is researching DDoS protection so...
What needs improvement with Radware Cloud DDoS Protection Service?
The time it takes to upload a site to the cloud is critical when under attack. If a site is down, a quick response to...
 

Also Known As

Cloudflare DNS
F5 Silverline Web Application Firewall, F5 Silverline DDoS Protection
Radware DefensePro, Radware DefenseFlow
 

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.
City Bank, Ricacorp Properties, Miele, American Systems, Bangladesh Post Office
Myntex, APAC retailers
Find out what your peers are saying about F5 Silverline Managed Services vs. Radware DDoS Protection Service and other solutions. Updated: April 2025.
849,686 professionals have used our research since 2012.