Azure DDoS Protection vs F5 Silverline Managed Services comparison

Azure DDoS Protection vs. F5 Silverline Managed Services

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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

Mindshare comparison

As of April 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 19.4%, up from 19.2% compared to the previous year. The mindshare of Azure DDoS Protection is 4.0%, up from 3.7% compared to the previous year. The mindshare of F5 Silverline Managed Services is 1.3%, down from 2.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Distributed Denial-of-Service (DDoS) Protection

Featured Reviews

Spencer Malmad

Owner at Tech Exchange

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.

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Venkat Raju Mallipudi

Group Chief of Enterprise Architecture & S/W Engineering/ CTO at Aventra Group

Acts as an additional layer of protection, provides endpoint security but not very easy to configure

It's not very easy to configure, in my view. We have to do some work behind the scenes. It's not very simple. We have to do it very carefully, and we need to monitor this enablement as well. But apart from that, I didn't see any kind of challenges. So, in my opinion, configuration is the main trouble for them. It is something that can be done to be better. Not just configuration. You need an expert who knows the ins and outs of these security solutions. In my experience, people struggle with configuration. While configuring, we get this error, we get that error, and then we try to fix those issues. I have seen those. It's not straightforward.

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DejanBlagojevic

Presales Engineer at Exclusive-networks

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.

Read full review

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 DNS is its global reach and it is always evolving."

"The UI is good."

"It's very user-friendly."

"What I like best about Cloudflare is that my company can use it to trace and manage applications and monitor traffic. The solution tells you if there's a spike in traffic. Cloudflare also sends you a link to check your equipment and deployment and track it through peering, so it's a valuable tool."

"The most valuable feature is its usability."

"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 solution is stable, and the DNS servers are simple to use."

More Cloudflare pros

"Azure DDoS Protection offers superior protection against denial-of-service attacks."

"This solution is the best option for us because we use a lot of Microsoft products. So, it is easy for us to deploy or integrate any features or products."

"The integration of various tools with Azure Firewall, like DDoS Protection, Web Application Firewall, and Azure Front Door, is quite effective."

"AI capabilities are very good. I would rate them an eight out of ten."

"Azure is easy to set up and widely used by our clients."

"The most valuable feature of Azure DDoS Protection is that it performs well."

"Azure is easy to set up and widely used by our clients."

"DDoS Protection is simple to deploy and integrates seamlessly with the Azure environment. Ease of deployment is a crucial feature for us."

More Azure DDoS Protection pros

"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 the benchmark performance."

"The most valuable features are the configuration and configuring the process."

"The initial setup is very straightforward."

"We have a lot of businesses that we put behind this solution, and it has really helped us in terms of monitoring the logs and incidents."

"F5 technical support is really good."

"The most important feature is that they have seven firewall protection, to protect our web servers."

"It's a good front end for public infrastructure"

More F5 Silverline Managed Services pros

Cons

"The pricing could be improved."

"The integration of LLMs on the dashboard is something that is needed in the tool."

"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 does not have an on-premise solution. If they had different approaches they could be better suited to accommodate more customers, such as on-premise and hybrid deployments. For example, hybrid deployments would be useful where you could move the traffic from the enterprise to the cloud."

"There could be more courses with engineers. I like e-learning, however, having a specialist in a classroom is more comfortable for me."

"Integration involving API with other products could be more user-friendly."

"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."

"The solution could work at being less expensive. It costs a lot to use it."

More Cloudflare cons

"It's not very easy to configure, in my view."

"The implementation of Azure DDoS Protection results in a decrease in our bandwidth capacity and should be optimized to reduce resource consumption."

"The visibility could be better. We would like to have better metrics, so we could see all the information in a central place."

"I have noticed some false positives with the Web Application Firewall yet not with DDoS Protection."

"Azure DDoS Protection could improve on the reporting."

"I suggest adding more services and additional services, which would be beneficial."

"The dashboard lacks insights and user-friendliness, as most data is logged into metrics like Log Analytics workspaces."

"Sometimes, it is hard for our staff to keep track of changes (in the GUI) between different projects, because there are constant changes. As a result, it is hard to manage, recall, and see all the features because they have been moved from one place to another."

"The price of F5 Silverline Managed Services could be better."

"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."

"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."

"We need to have support for cloud protection, which is not offered by this solution."

"Improvements could include the creation of highly optimized profiles, optimization deployments, and compression profiles for better performance."

"F5 Silverline Managed Services can improve by adding features that Palo Alto has."

"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."

More F5 Silverline Managed Services cons

Pricing and Cost Advice

"I give the price a five out of ten."

"The product's pricing is cheap."

"The cost primarily depends on the size of the organization."

"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."

"We don't have any issues with the price."

"That is one of the great features. I was able to access the majority of the features and services for free."

"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."

"We are using the free version."

More Cloudflare pricing and cost advice

"It is an expensive solution."

"You can test it for a certain period of time free of charge. You can have a free account. You can test it to compare its pros and cons with other products that you are testing."

"The price of F5 Silverline Managed Services could be reduced."

"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 better, they are not very flexible. The price of the solution is based on the requirements of the enterprise."

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845,406 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Educational Organization

21%

Computer Software Company

13%

Comms Service Provider

Financial Services Firm

Computer Software Company

18%

Financial Services Firm

13%

Government

Manufacturing Company

Financial Services Firm

21%

Insurance Company

12%

Computer Software Company

11%

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 Azure DDoS Protection?

Azure DDoS Protection offers superior protection against denial-of-service attacks.

What is your experience regarding pricing and costs for Azure DDoS Protection?

The pricing is somewhat costly, usually around $3,000 to $4,000 per month. Managing this expense is tough, especially...

What needs improvement with Azure DDoS Protection?

The dashboard lacks insights and user-friendliness, as most data is logged into metrics like Log Analytics workspaces...

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 do you like most about F5 Silverline Managed Services?

The initial setup is straightforward.

What is your experience regarding pricing and costs for F5 Silverline Managed Services?

The solution is expensive, however, the quality and performance are good.

Azure Front Door vs Cloudflare

Comparisons

Quad9 vs Cloudflare

Compared 50% of the time

Akamai vs Cloudflare

Compared 4% of the time

Compared 4% of the time

Azure DNS vs Cloudflare

Compared 3% of the time

Amazon Route 53 vs Cloudflare

Compared 2% of the time

More Cloudflare Competitors

AWS Shield vs Azure DDoS Protection

Compared 29% of the time

Azure Firewall vs Azure DDoS Protection

Compared 10% of the time

Azure Front Door vs Azure DDoS Protection

Compared 10% of the time

Microsoft Defender for Cloud vs Azure DDoS Protection

Compared 7% of the time

Arbor DDoS vs Azure DDoS Protection

Compared 7% of the time

More Azure DDoS Protection Competitors

F5 Distributed Cloud Services vs F5 Silverline Managed Services

Compared 24% of the time

Arbor DDoS vs F5 Silverline Managed Services

Compared 12% of the time

F5 Advanced WAF vs F5 Silverline Managed Services

Compared 11% of the time

Microsoft Azure Application Gateway vs F5 Silverline Managed Services

Compared 9% of the time

AWS WAF vs F5 Silverline Managed Services

Compared 8% of the time

More F5 Silverline Managed Services Competitors

Product Reports

Cloudflare

Download Cloudflare product report

Azure DDoS Protection

Download Azure DDoS Protection product report

F5 Silverline Managed Services

Download F5 Silverline Managed Services product report

Also Known As

Cloudflare DNS

No data available

F5 Silverline Web Application Firewall, F5 Silverline DDoS Protection

Overview

Cloudflare is a highly-regarded Content Delivery Network (CDN) and a Distributed Denial-of-Service (DDoS) protection solution. The robust global connectivity cloud platform that is Cloudflare ensures users are able to connect to the Internet quickly, securely, and reliably. Cloudflare is one of the world's largest networks in the marketplace today. Using Cloudflare, businesses, educational entities, NGOs, vloggers, bloggers, and anyone else with an internet presence can experience more secure, faster websites and applications.

Currently, there are millions of Internet locations on Cloudflare, and the Cloudflare network
continues to grow every day by the thousands. The solution is able to fulfill the requests for
millions of websites seamlessly and serves on average 45 million HTTP requests per second.

Cloudflare has safe, secure data centers in close to 300 cities worldwide to ensure every
client request is filled as quickly as possible. It is Cloudflare’s edge network that makes this
possible by keeping content and other services as close to each client as possible, so the
information requests are always only seconds away.

Many organizations that work in democracy, civil society, human rights, or the arts are able to
access Cloudflare's highest levels of protection for free via Project Galileo. Additionally, official
election websites can be secured from hacking and fraud through Cloudflare’s Project
Athenian, also at no additional cost.

Cloudflare can also help organizations of all sizes develop a robust zero-trust strategy to
ensure the highest levels of productivity and profitability. Employees, stakeholders, and end users have a greater level of satisfaction and overall improved user experience, which can, in
turn, result in higher revenues and overall ROI. Zero-trust and BYOD (bring your own device)
access ensure end users and employees always have the best resources and technology
available to them at all times.

Cloudflare benefits

Cloudflare has many benefits. Some of its most valuable benefits include:

- Faster load times

- Robust DNS security

- Intuitive cloud Web Application Firewall (WAF)

- Free universal SSL

- Image enhancement

- Automatic browser caching

- Next-generation cloud load balancer

- Accelerated Mobile Pages (AMP)

- Rate limiting

- Minification

- Zero-trust capabilities

- Cost-effective

- Reduced carbon footprint

Reviews from real users

“Many websites require an SSL certificate because they sell stuff and want SSL. Cloudflare
comes with an SSL certificate built in. It's automatic. You sign yourself up for Cloudflare, and
an SSL certificate automatically protects your website. If you have a connection between your
website and your host, the server, Cloudflare, and the host, you don't necessarily need a
certificate.” Spencer M., Owner at Tech Exchange

“What I like best about Cloudflare is that my company can use it to trace and manage
applications and monitor traffic. The solution tells you if there's a spike in traffic. Cloudflare
also sends you a link to check your equipment and deployment and track it through peering,
so it's a valuable tool.” Daniel P., Network Engineer at Ufinet

“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.” PeerSpot user, Competence Center Manager at a tech services company

Cloudflare

Azure DDoS Protection, combined with application design best practices, provides defense against DDoS attacks.

To learn more about our solution, ask questions, and share feedback, join our Microsoft Security, Compliance and Identity Community.

Microsoft

F5's Silverline Managed Services is a SaaS solution delivering DDoS protection, managed Web Application Firewall (WAF) services, and managed Shape Security Fraud and Anti-bot solutions.

Silverline services include 24x7 access to F5's Security Operations Center (SOC). F5's expert security professionals use F5 products with state-of-the-art security tools to ensure the best protection possible. As an add-on to Silverline DDoS or WAF services, Silverline Threat Intelligence integrates dynamic lists of threatening IP addresses to give context for policy decisions.

Sample Customers

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.

Information Not Available

City Bank, Ricacorp Properties, Miele, American Systems, Bangladesh Post Office

Azure DDoS Protection vs. F5 Silverline Managed Services