Azure DDoS Protection vs F5 Silverline Managed Services comparison

Microsoft and F5 are both solutions in the Distributed Denial-of-Service (DDoS) Protection category. Microsoft is ranked #11 with an average rating of 8.3, while F5 is ranked #15 with an average rating of 8.0. Microsoft holds a 4.1% mindshare in DDOS, compared to F5’s 1.4% mindshare. Additionally, 100% of Microsoft users are willing to recommend the solution, compared to 100% of F5 users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 5, 2024

Azure DDoS Protection and F5 Silverline Managed Services compete in the cybersecurity sector specializing in DDoS mitigation solutions. Azure seems to have the upper hand due to its cost-effectiveness and automatic endpoint security, making it a valuable option for enterprises.

Features: Azure DDoS Protection offers strong DNS security, seamless Azure integration, and continuous traffic monitoring to prevent attacks. F5 Silverline Managed Services provides L7-firewall protection, real-time attack mitigation, and flexible traffic management.

Room for Improvement: Azure DDoS Protection needs to improve its reporting capabilities, simplify configuration, and manage resource consumption better. F5 Silverline Managed Services should address high pricing, enhance load handling and increase the number of Points of Presence (PoPs).

Ease of Deployment and Customer Service: Azure DDoS Protection integrates easily into public cloud environments but receives mixed customer service reviews based on client tier. F5 Silverline Managed Services supports private and hybrid cloud deployments and benefits from existing service teams that reduce the need for external support.

Pricing and ROI: Azure DDoS Protection is considered cost-effective for larger organizations, despite being costly upfront. F5 Silverline Managed Services, perceived as more expensive due to additional fees, provides a favorable ROI with its packaged features appealing to certain enterprise needs.

To learn more, read our detailed Azure DDoS Protection vs. F5 Silverline Managed Services Report (Updated: January 2025).

Buyer's Guide

Azure DDoS Protection vs. F5 Silverline Managed Services

January 2025

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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 March 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 18.9%, down from 19.3% compared to the previous year. The mindshare of Azure DDoS Protection is 4.1%, up from 3.8% compared to the previous year. The mindshare of F5 Silverline Managed Services is 1.4%, down from 2.6% 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.

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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."

"There are key things that are used for our enterprise customers, such as Lambda and DNS."

"The most valuable feature of Cloudflare is that it has a free version. They give us the free version with the anti-DDoS features and also the load balancing solution."

"When using services like Heroku, Cloudflare is very useful for CNAME flattening. I also use it for their end-to-end SSL with TLS authentication on nginx for securing servers."

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

"It is a fast and secure DNS."

"Its most significant benefit to date is the speed with which it refreshes DNS records on the internet once you change it. If you are changing a website or registering a new record, it is very quick."

"The most valuable feature of the solution is external DNS. It is also very secure. They have their own main server and once you configure it, the product takes care of everything. There are no issues in resolving IPs and low latency is also present."

More Cloudflare pros

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

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

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

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

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

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

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

More Azure DDoS Protection pros

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

"The most valuable feature is flexibility."

"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."

"F5 Silverline offers load balancing, flexibility, and reliability."

"The most valuable feature of F5 Silverline Managed Services is the benchmark performance."

"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."

"The initial setup is straightforward."

"The most valuable feature of F5 Silverline Managed Services is its cloud-native functionality and the high level of protection it provides."

More F5 Silverline Managed Services pros

Cons

"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."

"There might be helpful if there was some web application firewall feature."

"The solution could use more analytics on the backend to give us more insights into everything. More reports would be helpful."

"The pricing could be improved."

"The product support needs to be accessible from more places, a wider area of coverage."

"I would like Cloudflare to offer a dedicated account manager for large enterprise clients like us."

"For the free and Pro plans, Cloudflare could use a simple bot to provide information to users. This would improve support, especially for less advanced users who utilize the free components."

"I believe they currently have this feature, but there will most likely be integration with APIs so we can control some features through API."

More Cloudflare cons

"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."

"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."

"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."

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

"Azure DDoS Protection could improve on the reporting."

"You need to have Linux knowledge in order to use the shell."

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

"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."

"The navigation is difficult to use."

"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 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."

More F5 Silverline Managed Services cons

Pricing and Cost Advice

"The product's pricing is cheap."

"The tool is a premium product, so it is very expensive."

"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."

"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."

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

"A free version of the solution is available."

"The pricing for the service is reasonable, neither excessively cheap nor prohibitively expensive. It aligns well with the value of their solution."

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."

"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."

"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

Educational Organization

24%

Computer Software Company

13%

Comms Service Provider

Financial Services Firm

Computer Software Company

18%

Financial Services Firm

12%

Manufacturing Company

Government

Financial Services Firm

21%

Insurance Company

12%

Computer Software Company

11%

Comms Service Provider

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...

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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...

See all answers

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.

See all answers

What do you like most about Azure DDoS Protection?

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

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

Compared to competitors, it is good. The pricing is mostly okay.

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What needs improvement with Azure DDoS Protection?

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

See all answers

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...

See all answers

What do you like most about F5 Silverline Managed Services?

The initial setup is straightforward.

See all answers

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

The product’s pricing is reasonable.

See all answers

Comparisons

Quad9 vs Cloudflare

Compared 50% of the time

Akamai vs Cloudflare

Compared 4% of the time

Azure Front Door vs Cloudflare

Compared 4% of the time

Azure DNS vs Cloudflare

Compared 4% of the time

Amazon Route 53 vs Cloudflare

Compared 2% of the time

More Cloudflare Competitors

AWS Shield vs Azure DDoS Protection

Compared 27% of the time

Azure Firewall vs Azure DDoS Protection

Compared 11% of the time

Azure Front Door vs Azure DDoS Protection

Compared 10% of the time

Microsoft Defender for Cloud vs Azure DDoS Protection

Compared 8% 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 21% of the time

Arbor DDoS vs F5 Silverline Managed Services

Compared 12% of the time

F5 Advanced WAF vs F5 Silverline Managed Services

Compared 10% of the time

AWS WAF vs F5 Silverline Managed Services

Compared 8% of the time

Microsoft Azure Application Gateway vs F5 Silverline Managed Services

Compared 8% of the time

More F5 Silverline Managed Services Competitors

Product Reports

Buyer's Guide

Cloudflare

March 2025

Download Cloudflare product report

Buyer's Guide

Azure DDoS Protection

March 2025

Download Azure DDoS Protection product report

Buyer's Guide

F5 Silverline Managed Services

March 2025

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

Buyer's Guide

Azure DDoS Protection vs. F5 Silverline Managed Services

January 2025

Free Report: Azure DDoS Protection vs. F5 Silverline Managed Services

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We monitor all Distributed Denial-of-Service (DDoS) Protection reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.