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Corero 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
1st
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
77
Ranking in other categories
CDN (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (12th)
Corero
Ranking in Distributed Denial-of-Service (DDoS) Protection
17th
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
6
Ranking in other categories
No ranking in other categories
F5 Silverline Managed Services
Ranking in Distributed Denial-of-Service (DDoS) Protection
14th
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
16
Ranking in other categories
Web Application Firewall (WAF) (23rd)
 

Mindshare comparison

As of October 2025, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of Cloudflare is 18.8%, up from 17.4% compared to the previous year. The mindshare of Corero is 2.6%, down from 3.0% compared to the previous year. The mindshare of F5 Silverline Managed Services is 1.3%, down from 2.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Market Share Distribution
ProductMarket Share (%)
Cloudflare18.8%
F5 Silverline Managed Services1.3%
Corero2.6%
Other77.3%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

Carlos Alam Hernandez Baruch - PeerSpot reviewer
Fast and secure deployments simplify operations for government and fintech clients
It is a fast and secure DNS. It is very easy to deploy, and my customers are happy with this tool. Additionally, the CDN performance in Mexico is excellent, providing fast service and tools. It offers reliability during high-traffic periods, ensuring no impact on the environment. It helps my clients avoid using on-premise boxes, simplifying operations as they only use the prices on Cloudflare.
Björn Lindman - PeerSpot reviewer
The product is highly stable and has valuable features, but it must provide more Layer 7 capabilities
We use the solution for DDoS protection in the routers The DDoS protection features are valuable. The product must provide more Layer 7 capabilities. It must provide deep inspection features. I have been using the solution for ten years. The tool has high stability. I rate the stability a nine…
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.

Quotes from Members

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

Pros

"I get a lot of value from Cloudflare's API because it enables you to build a separate environment inside the solution. You can create a domain for performing test requests before you move to the production environment and connect various domains."
"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."
"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 overall experience with Cloudflare is positive, with a rating of eight out of ten."
"The DDoS protection is the most valuable aspect of the solution."
"The simplicity of the overall dashboard makes it a great product for a user like me who has less understanding of the internet than a developer or other more technical people. It gives me peace of mind. I also love the easy customization of the Page Rules."
"DDoS attacks target unprotected machines. Cloudflare detects and stops these attacks using internal systems. It identifies incoming DDoS attacks, issuing challenges or blocking them immediately."
"SmartWall devices occupy only one-fourth of the width of a rack unit, making them very easy to install."
"It is a good solution. Its vendor support is the most valuable. It is simple and works well if you have Juniper MX routers."
"It is an agnostic and transparent inline platform, which means that the maximum visibility of the symmetric and asymmetric traffic is available, even allowing bidirectional detection of the attack."
"The most important aspect, in general, is that the price is suitable for most clients."
"The DDoS protection features are valuable."
"The most valuable feature of Corero is its ability to handle smaller attacks in terms of the amount of volume and time. You can handle almost 100 perfect of the attacks locally."
"This is a hybrid solution."
"The most valuable feature of F5 Silverline Managed Services is its cloud-native functionality and the high level of protection it provides."
"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"
"The most valuable features are the configuration and configuring the process."
"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 product’s UI is easy to understand."
"The most valuable feature of F5 Silverline Managed Services is the benchmark performance."
"F5 Silverline offers load balancing, flexibility, and reliability."
 

Cons

"Sometimes their more advanced caching tools can cause higher first-byte times and problems with JavaScript."
"We have noticed multiple instances where Cloudflare falsely indicates that our servers are down, even when there is no actual load on them. This makes it challenging for us to identify the exact issue."
"The product needs to improve its automation."
"It would be helpful if the solution could continue evolving to compete with the other solutions on the market."
"Cloudflare's console should be made more user-friendly."
"The tool needs to improve caching of servers. The product needs to include PFX certificate as well."
"Eventually, things go sideways and require fixes when it would have been easier to prevent the issue initially."
"The pricing could be improved."
"Lacks international presence."
"Corero needs to improve its application DDoS prevention capabilities and user behavior detection features."
"The approach taken by Corero is to partner with other organizations in order to address volumetric attacks that cannot be handled by the hardware installed in the infrastructure. Corero does not have a solution for these attacks, so they are looking for partners to help them manage them. This approach is supplemented by local hardware, but the main focus is on the partnerships. It would be beneficial to have a more complete solution."
"Juniper is known in our country, but it is not very popular. There is also not enough information about Corero. Our enterprise and financial sectors don't know about this solution. They need to provide more information and do more marketing for this solution in our country."
"It could use support in Spanish."
"The product must provide more Layer 7 capabilities."
"We need to have support for cloud protection, which is not offered by this solution."
"There is room for improvement in the stability of the solution."
"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 price of F5 Silverline Managed Services could be better."
"I just hope the price can be cheaper."
"F5 Silverline Managed Services can improve by reducing the price."
"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."
"The navigation is difficult to use."
 

Pricing and Cost Advice

"The product's pricing is minimal compared to other products."
"That is one of the great features. I was able to access the majority of the features and services for free."
"In terms of licensing costs, we don't pay for licensing for Cloudflare. We only establish communication, then for peering, Cloudflare takes care of the cross-connection in different data centers."
"For Cloudflare, I recommend it heavily for small businesses with revenue under a couple of million dollars. Onboarding is easy, and they even have a free plan. This makes it simple for businesses in the $100,000-$500,000 range to try it out and see its value, allowing them to scale up their infrastructure as needed."
"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."
"Cloudflare's pricing is not much higher and is good for middle-level organizations."
"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."
"I think the pricing is competitive. I think as far as licensing is concerned it's pretty straightforward because it's based on domain. It's just that sometimes domains could be tricky with some customers."
"The price of Corero is affordable."
"Its price is normal."
"The product’s pricing is reasonable."
"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 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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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Computer Software Company
20%
Comms Service Provider
11%
Manufacturing Company
7%
Government
7%
Financial Services Firm
19%
Insurance Company
14%
Comms Service Provider
13%
Computer Software Company
12%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise1
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise2
Large Enterprise8
 

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 Corero?
The DDoS protection features are valuable.
What needs improvement with Corero?
Corero needs to improve its application DDoS prevention capabilities and user behavior detection features.
What is your primary use case for Corero?
I use Corero for network DDoS protection projects. It is particularly effective in providing protection against netwo...
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 quite reasonably priced, with costs being lower in comparison to competitors. On a scale where ten is...
What needs improvement with F5 Silverline Managed Services?
Automating processes could enhance F5 Silverline Managed Services. For example, introducing preemptive support prompt...
 

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.
Telesystem, Jagex, Hivelocity, Los Angeles Dedicated, Netrics hosting, Hyve, Zacks Investment Research, Dynamic Business Systems, G4BOX INC., GamersFirst, Fastmetrics, San Miguel County
City Bank, Ricacorp Properties, Miele, American Systems, Bangladesh Post Office
Find out what your peers are saying about Corero vs. F5 Silverline Managed Services and other solutions. Updated: September 2025.
869,566 professionals have used our research since 2012.