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AWS Shield vs F5 Silverline Managed Services comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 5, 2024

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
2nd
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
79
Ranking in other categories
CDN (1st), WAN Optimization (4th), Web Application Firewall (WAF) (9th), Managed DNS (1st), Domain Name System (DNS) Security (5th), Cloud Security Posture Management (CSPM) (14th)
AWS Shield
Ranking in Distributed Denial-of-Service (DDoS) Protection
9th
Average Rating
8.6
Reviews Sentiment
6.8
Number of Reviews
10
Ranking in other categories
No ranking in other categories
F5 Silverline Managed Services
Ranking in Distributed Denial-of-Service (DDoS) Protection
5th
Average Rating
8.0
Reviews Sentiment
6.6
Number of Reviews
19
Ranking in other categories
Web Application Firewall (WAF) (17th)
 

Mindshare comparison

As of August 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 12.4%, down from 19.1% compared to the previous year. The mindshare of AWS Shield is 2.9%, down from 6.1% compared to the previous year. The mindshare of F5 Silverline Managed Services is 2.7%, up from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Cloudflare12.4%
F5 Silverline Managed Services2.7%
AWS Shield2.9%
Other82.0%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

M.A. Faisal - PeerSpot reviewer
General Manager at bKash Limited
Advanced protection has secured critical web workloads and provides clear traffic visibility
From a security perspective, there remains a security loophole, as some browsers in the market can bypass the Turnstile solution, which requires approximately 40 seconds to do so. From a performance perspective, this is acceptable. We also tried Google reCAPTCHA, and that can also be bypassed. From a security perspective, I would say neither solution is completely secured. Regarding uptime, we have faced a couple of incidents due to Cloudflare in recent years, so I cannot say we receive 100% uptime for our region. We sometimes face challenges, including downtime and other issues. As a result, we are not receiving 100% uptime from Cloudflare's solution. Since most of our customers are in this region, we need alternatives. We need something more competitive than Cloudflare. Unfortunately, in Bangladesh, Cloudflare has three points of presence already, and we cannot find any other solution provider in Bangladesh as an alternative, which presents another challenge. Competitor solutions have more attack signatures, which ensure better security compared to Cloudflare's predefined configurations. Customers do not have options to modify any configuration parameters in Cloudflare, whereas other competitor solutions, such as F5 Distributed Cloud, allow customers to tune configurations according to their requirements. Cloudflare could improve in this area. Additionally, regarding visibility, Cloudflare has static visibility, but they could adopt dynamic graph features for their customers.
Pranav Telang - PeerSpot reviewer
DGM at Airtel Digital
Has enabled multi-layered threat mitigation but still lacks deeper visibility for advanced application attacks
AWS Shield has limited coverage as it only protects against common and high-volume network and transport layer attacks, such as SYN floods. It does not provide inherent protection against more sophisticated layer 7 attacks such as HTTP floods. In such cases, integration with WAF is necessary, which results in additional costs for customers. To protect layer 7, layer 4, and layer 3, customers must implement both solutions. The service also has difficulties with static detection thresholds, which may not be sensitive enough to detect smaller application-specific attacks. While AWS Shield is a key security service, AWS should enhance their expert support with 24/7 response for complex attacks, which is currently limited.
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.

Quotes from Members

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

Pros

"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."
"From what I've seen so far, there are no negatives to report as of yet"
"It is easier to configure and develop documentation to see how we have configured firewalls."
"So far I use free tier and happy with it."
"DDoS protection is this product’s most valuable feature."
"The solution automatically detects and responds to certain types of traffic based on geolocation."
"Cloudflare's DNS services deliver the best performance in terms of speed and reliability."
"Cloudflare improves performance on my websites and is a great partner for cloud infrastructure for anyone who wants to use the security service and other features."
"I recommend AWS Shield because it has proven helpful in tracking DDoS attacks within both my past and present environments, and without AWS Shield, a business could face potential losses, as this tool helps in identifying and mitigating fake traffic that disrupts applications, ultimately supporting business continuity."
"I am impressed with the product's multiple features like security."
"AWS Shield is aligned with the web application firewall (WAF), and they work seamlessly together, primarily working with Elastic Load Balancer, CloudFront, and Route 53 for CDN and DNS services protection."
"It is integrated with AWS. So, it gives you a good first step."
"The solution operates smoothly at its baseline level, and we do not encounter any issues at that level."
"We have integrated the tool with Active Directory. The most important feature is that it's transparent and doesn't degrade the performance of our solution. Additionally, it's easy to configure, which is crucial for us. It's easy to use and set up and stops attacks on our servers. We haven't encountered any attack problems because the solution stops them in real-time. AWS Shield specifically focuses on defending against denial-of-service attacks, making it a great solution for that type of threat."
"The product is easy to use."
"The solution's ease of use is the most valuable feature."
"The most valuable feature of F5 Silverline Managed Services is it becomes similar to a distributed architecture."
"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."
"It's a good front end for public infrastructure"
"F5 Silverline Web Application Firewall works perfectly fine; it pretty much does everything that an Advanced WAF on-premises should do."
"F5 Silverline takes fewer resources to operate."
"The most valuable features are the configuration and configuring the process."
"I think F5 is one of the best web application firewalls in the world."
"If you are looking for web security and don't have any solution, just try it."
 

Cons

"For the services I am using, it is a bit expensive."
"It would be helpful if the solution could continue evolving to compete with the other solutions on the market."
"I would like Cloudflare to offer a dedicated account manager for large enterprise clients like us."
"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."
"Flexible SSL is nothing more than an illusion of security that you're presenting to your visitors."
"It should confirm audit findings of the assigned area with auditees to ensure that the audit conclusions are based on an accurate understanding of the issues."
"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."
"Cloudflare could be improved by introducing a mid-tier pricing option."
"The time taken to detect anomalies must be reduced."
"The product needs to improve its logs and reports to make it read better."
"Perhaps the time required to detect anomalies can be reduced. Presently, it takes some time to determine whether a situation is normal or abnormal."
"The management of it is a bit hard. If you don't engineer it on the front side, it is hard to go back in and change it. It could be improved in terms of architecture requirements and then ongoing support requirements as a secondary component to it. People tend to set up things like this, and they just expect it to work without the care and feeding that needs to go back into it either from an application team or a network environment team."
"The product should give users more flexibility to customize their security policies according to their requirements."
"AWS Shield has limited coverage as it only protects against common and high-volume network and transport layer attacks, such as SYN floods."
"There is an area for improvement regarding health checks. AWS Shield does not come with its own health check functionality."
"We end up having to pay extra for features that AWS adds that we don't need."
"The product could be improved on the global load and the integration with other solutions like Cisco and Dell EMC."
"The price is high in comparison to other products."
"One negative aspect is that the product is expensive."
"The price of F5 Silverline Managed Services could be better, they are not very flexible."
"You need to have Linux knowledge in order to use the shell."
"We are doing a lot of automation, so I find the APIs are not very easy to use. So the current automation is not that good for F5 at the moment."
"We need to have support for cloud protection, which is not offered by this solution."
"We have complaints about the reliability of this solution."
 

Pricing and Cost Advice

"There are no additional costs beyond the standard licensing fees."
"Cloudflare's pricing is not much higher and is good for middle-level organizations."
"The product's pricing is cheap."
"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."
"The tool is a premium product, so it is very expensive."
"The price is reasonable."
"The price of the solution is expensive."
"A free version of the solution is available."
"It depends on your subscription level and the volume that you're spending with AWS. So, it is very relative to the consumption alignment in your subscription level. It is a well-constructed, scalable pricing option, but it is relative to how much you're spending on AWS. Because the more you spend, typically, the more you get off on services like this. I find it to be comparable to other solutions."
"We pay $3000 per month for the solution."
"The tool's pricing is good."
"The cost depends on traffic each month, so on average, it costs us between US$200 and US$300 per month."
"The tool is cheap."
"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 product’s pricing is reasonable."
"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
Comms Service Provider
10%
Financial Services Firm
10%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
17%
Computer Software Company
9%
Manufacturing Company
7%
Financial Services Firm
7%
Financial Services Firm
15%
Comms Service Provider
14%
Insurance Company
8%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise11
Large Enterprise26
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise7
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise11
 

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 is your experience regarding pricing and costs for Cloudflare DNS?
The pricing, setup cost, and licensing for Cloudflare are a bit on the higher side overall.
What is your experience regarding pricing and costs for AWS Shield?
The pricing structure for AWS Shield is fair, yet it depends on the specific protections chosen. Enabling Shield Adva...
What needs improvement with AWS Shield?
Services always benefit from improvements, including AWS Shield. With respect to the Web Application Firewall, curren...
What is your primary use case for AWS Shield?
What do you use it for? How do you use it?
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?
My experience with pricing, setup cost, and licensing is that it is better than other solutions.
What needs improvement with F5 Silverline Managed Services?
I think the management portal and the visual dashboard of F5 Silverline Managed Services could use an update.
 

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.
netflix, dow jones, mapbox, pearson, rovio, youview, moviestar planet, asurion, payplug, hour of code
City Bank, Ricacorp Properties, Miele, American Systems, Bangladesh Post Office
Find out what your peers are saying about AWS Shield vs. F5 Silverline Managed Services and other solutions. Updated: August 2026.
909,153 professionals have used our research since 2012.