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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 May 4, 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
7.0
Cloudflare improves speed, security, and stability, leading to significant financial benefits with an ROI of 318% for businesses.
Sentiment score
6.6
F5 Silverline Managed Services offers effective cybersecurity solutions, with variable ROI perceptions and appreciation for time and cost savings.
Sentiment score
6.4
Radware DDoS Protection offers essential value akin to insurance by preventing costly disruptions and enhancing business security.
WordPress security can be tricky, and that's where Cloudflare can be absolutely helpful for small businesses.
We have had ROI with the tool's use since it never gave us downtime and made us lose millions.
For the small project I was working on, using the basic tier provided a huge improvement at zero cost.
 

Customer Service

Sentiment score
7.2
Cloudflare's support is praised for responsiveness, though non-paying users and regions without local offices face challenges.
Sentiment score
6.1
F5 Silverline's customer support is responsive but varies; users praise personalization but note challenges with escalations and response times.
Sentiment score
6.9
Radware DDoS Protection offers responsive and effective technical support, though local support improvements are desired by some users.
This would help us address issues promptly, especially during unforeseen events like DDoS attacks.
Cloudflare does not offer hands-on technical support to fix customer problems but rather a self-service model.
We'd like a dedicated account manager.
Their support team is responsive, and they deliver timely updates, addressing any glitches promptly.
They resolve the issues by joining me to fix them.
Providing assistance almost instantly when needed.
Before using Radware, I experienced some delays with another product, but with Radware, we have immediate connections with high-level technical support.
 

Scalability Issues

Sentiment score
8.2
Cloudflare efficiently handles increased traffic and growth, offering scalability, robust network performance, and seamless expansion for enterprises.
Sentiment score
7.8
F5 Silverline offers scalable managed services, efficiently handling enterprise demands with flexible expansion and seamless capacity management.
Sentiment score
7.6
Radware DDoS Protection Service is scalable, user-friendly, and effective, despite some licensing flexibility issues in diverse environments.
I would rate the solution's scalability a ten out of ten since I didn't encounter any issues with it.
I rate its scalability a ten out of ten because I had no issues with it.
I rate the scalability a ten out of ten.
F5 Silverline Managed Services is scalable enough without observed limitations.
The solution is fully scalable, and I would give it a rating of ten on a scale of one to ten for scalability.
Scalability is well-supported by Radware.
It is scalable and user-friendly.
 

Stability Issues

Sentiment score
7.7
Cloudflare is generally stable and reliable, but occasional issues with downtime, speed, and DDoS protection are reported.
Sentiment score
7.3
F5 Silverline delivers stable performance with strong monitoring, minimal downtime, effective support, and high stability ratings despite occasional issues.
Sentiment score
8.6
Radware DDoS Protection is praised for its reliable performance and uptime, despite minor challenges with APSolute Vision stability.
For DDoS protection, I would not recommend Cloudflare.
I rate the solution’s stability an eight out of ten.
The service is very stable with no impacts during high-traffic periods.
They offer regular updates, and overall, I would rate the stability of the solution as nine out of ten.
In my opinion, there is no downtime experienced with Radware DDoS Protection Service due to external network redundancy.
 

Room For Improvement

Cloudflare needs analytics, threat insights, improved support, user-friendly dashboards, and simplified pricing, with consistent caching and security features.
F5 Silverline needs improved pricing, integration, user interfaces, automation, API, and enhanced features like AI and bot detection.
Radware DDoS Protection needs better scalability, AI integration, user interface, communication, customization, pricing, and IT system integration.
There's a need for improvement in areas like AI-based DDoS attacks and Layer 7 WAF features.
Despite these challenges, overall, Cloudflare remains the preferred solution compared to Azure, AWS CloudFront, and Google Cloud Armor.
In future releases, one thing that would be great is if Cloudflare could provide basic WAF rules and security recommendations based on website scanning.
Introducing preemptive support prompts would reduce the manual effort required for creating policies or blocking specific IPs.
Improvements could include the creation of highly optimized profiles.
I suggest improvements to the user interface to make it easier to use and to find the necessary data for analysis.
I want to improve the blocking time; it should be within 10 seconds because 18 seconds allows multiple transactions in the financial industry.
 

Setup Cost

Cloudflare offers flexible pricing with plans for small businesses to enterprises, balancing cost with comprehensive features and protection.
Enterprise users view F5 Silverline pricing as competitive but costly, with room for negotiation and flexible licensing options.
Radware DDoS Protection is costly but valued by large organizations for flexible, customizable pricing and robust long-term security.
That's where Cloudflare shines for smaller businesses – it's ten times cheaper than Akamai.
I find it to be cheap.
It's cost-effective, but I think they should have a custom pricing model for enterprise customers based on the features you use.
On a scale where ten is very expensive, I would rate the pricing as three.
The solution is expensive
Radware pricing is on the high end, suitable more for larger organizations.
I didn't check pricing of other providers in depth but verified with two, and found Radware to be significantly cheaper compared to F5.
 

Valuable Features

Cloudflare offers caching, DDoS protection, and CDN services, enhancing website speed and security with intuitive interface and global reach.
F5 Silverline Managed Services provides easy setup, robust security features, excellent scalability, and effective DDoS protection with comprehensive reporting.
Radware's DDoS Protection offers real-time detection, automated mitigation, customizable deployment, and robust security, enhancing network reliability and uptime.
Our scenario consisted of two web servers in different allocations to control access demands, and the load balancer did the job as expected, bringing security and stability to access points.
For me, the valuable feature is DDoS protection.
The most valuable features of the solution are performance and security.
It allows for centralized management of certificates, protecting applications from top ten attacks like SQL injection and cross-site scripting.
The monitoring tab displays GET and POST requests in a readable format, making it accessible even to non-tech-savvy individuals.
The support from Radware is also exceptional, as they are always willing to jump on a call to help solve issues and improve our network design.
The best feature of Radware DDoS Protection Service is the automation.
 

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) (13th)
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) (23rd)
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.
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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
16%
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
36%
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?
For Radware Cloud DDoS Protection, the pricing model can vary based on a number of factors such as the scale of the b...
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.
850,671 professionals have used our research since 2012.