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F5 Silverline Managed Services vs Imperva Web Application Firewall comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 1, 2025

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
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
76
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (13th)
F5 Silverline Managed Services
Average Rating
7.8
Reviews Sentiment
6.8
Number of Reviews
16
Ranking in other categories
Web Application Firewall (WAF) (25th), Distributed Denial-of-Service (DDoS) Protection (15th)
Imperva Web Application Fir...
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
52
Ranking in other categories
Web Application Firewall (WAF) (7th)
 

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.
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.
Mitesh D Patel - PeerSpot reviewer
Effectively defends against threats like cross-site scripting (XSS), SQL injection, and others
It does bring value. For example, consider a BFSI customer. Their application is critical and represents their brand. Without a WAF, an attack could take their application down, harming their reputation. It leads to hampering the customer's workflow. With an Imperva WAF, they protect against attacks like DDoS or SQL injection, ensuring their application remains available and customers are happy. That's the main benefit for both the customer and the organization. The impact depends on the customer's use case. If their business primarily operates online, a CDN is beneficial for traffic optimization. Moreover, the integration options depend on the specific use case of our customers. Generally, integration capabilities are good with SIEM (Security Information and Event Management) parts.

Quotes from Members

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

Pros

"We're using dynamic components to build flexible pages to create and manage Git merge requests for code and reviews."
"The solution provides good load balancing and protection against DDoS attacks."
"The DDoS protection is the most valuable aspect of the solution."
"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. You don't necessarily need a certificate if you have a connection between your website and your host, the server, Cloudflare, and the host."
"Cloudflare allows us to self-host services such as Rocket.Chat and Node-RED, in high-availability mode, thanks to round robin DNS which allows us to share one hostname between our two locations."
"Its ease of integration with Office 365 and the fact that it's a good product compared to what I had before"
"Easier http to https redirect using page rules"
"The solution is stable, and the DNS servers are simple to use."
"The most valuable features are the configuration and configuring the process."
"The initial setup is very straightforward."
"The product’s UI is easy to understand."
"The best advantage of F5 Silverline Managed Services is that it is easy to use."
"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."
"F5 Silverline offers load balancing, flexibility, and reliability."
"The most valuable feature is flexibility."
"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 solution is very scalable. It is one of the most important features. You can also expand resources and features as well."
"The most valuable features of Imperva Web Application Firewall are the monitoring of databases and the dashboards are easy to understand."
"Protection is the best solution since it has profile functionality."
"Data masking is the most valuable feature of this solution."
"It has fewer false positives"
"It is easy to use and has good security."
"I am impressed with the product's scalability, availability, easy management, and security. We were able to integrate the product with Azure and Sentinel."
"The solution integrates seamlessly with other tools and has a good alert mechanism."
 

Cons

"There should be a specific price list for enterprise-level customers."
"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 think the APIs are a little bit hard for us to work with. The APIs could be more open so that we could integrate better with our SolarWinds or our monitoring solution."
"Eventually, things go sideways and require fixes when it would have been easier to prevent the issue initially."
"If they improve on the placement of their data centers, it would be better. I'm living in a remote area. I would like to connect to them without any kind of lag."
"For large enterprises, the pricing is okay. However, the enterprise price for small projects is a bit high. A mid-tier pricing option would be beneficial."
"There could be more courses with engineers. I like e-learning, however, having a specialist in a classroom is more comfortable for me."
"Technical support is lacking."
"F5 Silverline Managed Services can improve by reducing the price."
"F5 Silverline Managed Services can improve by adding features that Palo Alto has."
"We'd like more AI to be used. Right now, they don't use it enough."
"Automating processes could enhance F5 Silverline Managed Services."
"We need to have support for cloud protection, which is not offered by this solution."
"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."
"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."
"I just hope the price can be cheaper."
"There could be some limitations that from the converged infrastructure perspective: when you want to converge with everything and you want Imperva to get there easily because it's not a cloud component. For example, when you want to build servers and you're using OneView to manage your software-defined networks, implementing Imperva right away is not that simple. But if you're doing just a simple cloud infrastructure with servers in there, you're good to go. Also, we are not able, with Imperva, to block by signatures. Imperva by itself needs to be complemented with another service to do URL filtering."
"It would be useful if the solution used more intelligence in attack protection. For example, firewalls are to be dependent on the configuration, but if they could have some data science around it the solution would be even better. The profiling of the traffic, and making decisions surrounding that should be intelligence-based, instead of being based on the configuration of the firewall itself."
"It's a complicated tool to keep."
"Some of the features should be included in the next release is a file integrating monitoring tool. This feature should be improved."
"Sometimes, support tickets don't get addressed quickly."
"Imperva Web Application Firewall can improve by providing better features, such as improved prevention of zero-day attacks. Additionally, it should include a VR meta-analysis."
"One potential improvement for Imperva is enhancing its alert system."
"The Imperva Web Application Firewall automations are good, but there is still room for improvement with them."
 

Pricing and Cost Advice

"The cost primarily depends on the size of the organization."
"That is one of the great features. I was able to access the majority of the features and services for free."
"It's a premium model. You can start at zero and work your way up to the enterprise model, which has a very high pricing level."
"The solution is expensive when compared to other products but offers unlimited bandwidth."
"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 product's pricing is cheap."
"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 product's pricing is minimal compared to other products."
"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."
"The price of F5 Silverline Managed Services could be reduced."
"There is a license for this solution and we purchase the license annually with no additional fees."
"Imperva Web Application Firewall is expensive."
"The pricing is somewhat expensive. It is actually a huge investment when compared to other countries."
"The cost of this solution depends on the platform."
"The price is high compared to other solutions like FortiWeb."
"It is very costly, but the return on investment is very high. Its cost was around $70,000, and we got it back in just six months."
"The price of Imperva Web Application Firewalls is expensive compared to others."
"There are some licenses that you have to buy to use some features. Its price could be better. Price is always important because, at the end of the day, customers have a budget. If you can meet the budget, you can sell, and if you don't, you cannot sell."
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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%
Financial Services Firm
18%
Comms Service Provider
13%
Insurance Company
13%
Computer Software Company
11%
Financial Services Firm
16%
Computer Software Company
11%
Insurance Company
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise2
Large Enterprise8
By reviewers
Company SizeCount
Small Business27
Midsize Enterprise10
Large Enterprise19
 

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 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...
DDoS solutions: Any other solutions to consider aside from Radware DDoS Protection Service and F5 Silverline DDoS Protection?
You can have a look to Imperva Cloud WAF, the anti-DDoS mitigation is under 1s and works very well. I observed a lot ...
Which Web Application Firewall (WAF) would you recommend? R&S or Imperva?
Imperva is a strong choice, given their security focus and ongoing R&D into the product in areas such as bot mana...
 

Also Known As

Cloudflare DNS
F5 Silverline Web Application Firewall, F5 Silverline DDoS Protection
No data available
 

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
BlueCross BlueShield, eHarmony, EMF Broadcasting, GE Healthcare, Metro Bank, The Motley Fool, Siemens
Find out what your peers are saying about F5 Silverline Managed Services vs. Imperva Web Application Firewall and other solutions. Updated: September 2025.
867,445 professionals have used our research since 2012.