Imperva Web Application Firewall vs Radware Cloud WAF Service comparison

Imperva Web Application Firewall vs. Radware Cloud WAF Service

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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

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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Abdullah Jin

Principal Cyber Prevent and Defense Engineer at a comms service provider with 1,001-5,000 employees

Offers bot protection and DDoS Protection and protects public-facing portals

Support is one thing I wish Imperva could improve. They follow the phone model and keep rotating you from one customer service person to another. The layer one support isn't very clear about the workings of the product. My feedback is primarily about Imperva Cloud, not on-premise. On-premise is a whole new story. Support is the issue for Imperva Cloud. It's also a bit pricey. It's a premium service and very expensive. The licensing model is not very straightforward. Every feature is priced separately, and to enjoy maximum protection, you'll have to spend a lot of money. The licensing model is a bit complex, and each feature is very pricey. For example, API security and web application protection are two separate license packages.

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Werner Lunow

CISO at a financial services firm with 1,001-5,000 employees

The interface is easy to use, and the solution protects us from OWASP Top Ten threats

DDoS protection was the critical feature we wanted when we decided to go with Radware. The company faced many DDoS attacks at the time, and we didn't have a solution. It's not the only reason we chose Cloud WAF. We do use it for other use cases. Cloud WAF's interface is easy to use and protects us from OWASP Top Ten threats. Our dev team do QA checks on applications before they go live, but Cloud WAF creates an additional security layer on our website. The solution protects against multiple threat types. We see SQL injection attacks and DDoS probes constantly. Attackers attempt multiple queries and enumeration attacks against our applications. We previously had a basic firewall with an IPS feature set, but it wasn't providing the same level of protection we get from the WAF. CloudWAF matches things automatically and identifies any threats. It seems to be doing its job. We sometimes have strange code-related behavior. When our developers write some poorly written code, it generates events in Cloud WAF. It's generally effective at detecting. We had an issue with a misconfigured rule where it blocked legitimate traffic. Overall, we haven't had many issues with it in the last three years. We leave it alone.

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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 technical support is good."

"Cloudflare is a security SaaS provider that provides security and protects us from any application layer attack."

"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 features of the solution are performance and security."

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

"The attacker won't have details since my public IP is anonymous. It offers us good privacy."

"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."

"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."

More Cloudflare pros

"We can prevent attacks or issues even before they happen."

"The solution has been quite stable. I have not seen any bugs at all."

"The solution is stable."

"If you are using the appliance as opposed to the virtual deployment, it can stand as the network layer-two and provide real transparency."

"The configurability of the tools and the ease of operation to be the most valuable feature of Imperva."

"Learning mode and custom policies are helpful features."

"It works right out of the box once you integrate the application."

"The solution integrates seamlessly with other tools and has a good alert mechanism."

More Imperva Web Application Firewall pros

"Cloud WAF's interface is easy to use and protects us from OWASP Top Ten threats. Our dev team do QA checks on applications before they go live, but Cloud WAF creates an additional security layer on our website."

"One of the most valuable features we have found in the solution is protection against attacks from botnet networks and the requests that these remote networks can generate that are blocked from our servers. That frees us from having to deal with that traffic."

"The solution requires very little maintenance; we install it, it works without any problems, is reliable, and we can almost forget about it."

"Integration is very easy."

"Radware Cloud WAF Service has several valuable features, with good support and a user-friendly GUI."

"With the current visibility dashboard, we can now obtain insight into the nature of attacks, identify attackers, and detect top IP or threat regions."

"The isolation feature is the most important one because everything is going directly to Radware first and then it goes into our system. What we get is the filtered version of everything that would otherwise come directly to us."

"Geo-blocking is one of the most valuable features we use the most; most of our users are in North, Central, and South America, so we use geo-blocking to block access from other countries."

More Radware Cloud WAF Service pros

Cons

"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."

"DNS Management."

"We are a product integrator and reseller, and we would like to have a better partner relationship, similar to a channel sales relationship. Sometimes we are on our own or get diverted by Cloudflare because they have direct sales, which competes with us and makes it difficult to build a relationship with this company since we want to be an MSP or a managed service provider for the solution."

"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."

"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."

"There are some issues with the CDN services."

"Cloudflare's free plan is limited to 5,000 records for their free plan. They should increase that. For example, if I create a domain called abc.com and a subdomain called a.abc.com, my record count will be two. I can make a maximum of 5,000 subdomains. However, if we use our own DNS hosted on another provider, there is no limit. Their free plan also lacks name server customization."

More Cloudflare cons

"I loved the approach of the cloud. The cloud has a lot of new features, like advanced web protection and DDoS protection. If those could also be on-boarded onto the on-prem versions, that would be ideal. They need to pay attention to both deployment options and not just favor one."

"The tool needs to improve CPU and storage memory."

"Imperva Web Application Firewall could improve the API integration. It was complex for us. Additionally, The onboarding could be better."

"I don't really use it and therefore can't speak to areas of improvement."

"Some of the features should be included in the next release is a file integrating monitoring tool. This feature should be improved."

"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."

"It would be nice to have more security control over mobile applications so I would suggest adding more mobile security features. It would also be beneficial to see improvements in regards to interface bandwidth performance, CPU time, and RAM size. Learning capability of the device is quite weak."

"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."

More Imperva Web Application Firewall cons

"The Cloud Portal has room for improvement."

"Radware needs to improve the certificate renewal process for customers who want to be secured with HTTPS."

"The lower-level technical team at Radware could improve their approach to problem-solving as they sometimes are very slow."

"They have a portal for webinar training but because we are in a Spanish-speaking country, it is difficult for us to watch them. Not all of us are fluent in English, but most of the courses and webinars are in English. That part could be improved..."

"Radware Cloud WAF Service should provide SSL certificates for its hosting customers."

"It would be ideal if Radware could offer a bundled package that includes Cloud WAF, web DDoS protection, bot manager, and Alteon for a more comprehensive security solution."

"Radware does not have much online training available to help customers get the most out of this solution."

"We receive many reports from our security team of IPs flagged by our security tools, such as Palo Alto. I cannot add the file containing the IPs to get them blocked; instead, I have to contact Radware support and open a ticket for them to do it. I need to be able to block flagged IPs myself, as it currently takes more time to open a ticket, contact the support team, and wait four to six hours for a response. I want to be able to upload a file with 2,000-3,000 IPs in the console and then apply and save the configuration."

More Radware Cloud WAF Service cons

Pricing and Cost Advice

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

"We are using the free tier of the solution."

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

"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."

"The price of the solution is expensive."

"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 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."

More Cloudflare pricing and cost advice

"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."

"Licensing can range from one to twenty thousand dollars annually. Additionally, some features, including software support, require an annual subscription as well."

"There are a couple of different licensing models."

"The tool is expensive."

"Imperva Web Application Firewall price is higher compared to other solutions. However, everything is included in the price."

"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."

"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."

More Imperva Web Application Firewall pricing and cost advice

"When compared to Akamai and F5, Radware's pricing and licensing are highly competitive."

"For the current market, the price for Radware Cloud WAF Service is exactly where we want it to be."

"I believe the prices are fair."

"The pricing is fair."

"We evaluated other options and, if I remember correctly, one of them was Fortinet, but they didn't seem as effective as Radware. But the price was the biggest difference. Radware had the best price for our type of network and level of scaling."

"If you plan to deploy Cloud WAF, keep in mind that the product is priced based on the megabits of traffic that pass through and the number of transactions. You should get your requirements correct up front. The active attackers feed and CDN services cost extra, so you need to negotiate these features upfront."

"Radware Cloud WAF Service falls within a mid-range price bracket compared to other web application firewall solutions."

"The price is a bulk average."

More Radware Cloud WAF Service pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Web Application Firewall (WAF) solutions are best for your needs.

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832,138 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Educational Organization

24%

Computer Software Company

13%

Comms Service Provider

Financial Services Firm

17%

Computer Software Company

14%

Manufacturing Company

Insurance Company

Computer Software Company

16%

Manufacturing Company

11%

Retailer

10%

Financial Services Firm

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.

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?

My recommendation is Imperva.

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...

DDoS solutions: Any other solutions to consider aside from Radware DefensePro 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 ...

What do you like most about Radware Cloud WAF Service?

One of the most valuable features we have found in the solution is protection against attacks from botnet networks an...

What is your experience regarding pricing and costs for Radware Cloud WAF Service?

I am not directly involved in pricing and setup cost discussions, but it seems that Radware offers a more cost-effect...

What needs improvement with Radware Cloud WAF Service?

API integration and documentation need to be improved. There should be more detailed documentation for API usage, rat...

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FortiWeb Web Application Firewall (WAF) vs Imperva Web Application Firewall

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Compared 31% of the time

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Fortinet FortiWeb vs Radware Cloud WAF Service

Compared 15% of the time

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Product Reports

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Cloudflare

February 2025

Imperva Web Application Firewall

Download Imperva Web Application Firewall product report

Radware Cloud WAF Service

Download Radware Cloud WAF Service product report

Also Known As

Cloudflare DNS

No data available

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

Imperva Web Application Firewall is a versatile solution that protects web applications and databases from various attacks, including DDoS, cross-site scripting, and SQL injection attacks. It offers data security, availability, and access control and can be deployed on-premises or on the cloud.

The solution has good security against web attacks and offers advanced bot protection, API security, and mitigation features. Imperva WAF is easy to configure and deploy; it has good customer service and an excellent user interface.

Imperva

Radware’s Cloud WAF provides enterprise-grade, continuously adaptive web application security protection. Based on Radware’s ICSA Labs certified, market-leading web application firewall, it provides full coverage of OWASP Top-10 threats and zero-day attacks, while implementing both negative and positive web application security models to automatically adapt protections to evolving threats and protected assets.

Radware’s Cloud WAF offers full web security protection including OWASP Top-10 coverage, advanced attack protection and 0-day attack protection by implementing both negative and positive web application security models. It provides organizations “frictionless” application protection by automatically detecting and protecting new web applications as they are added to the network through automatic policy generation technology.

Radware

Sample Customers

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

BlueCross BlueShield, eHarmony, EMF Broadcasting, GE Healthcare, Metro Bank, The Motley Fool, Siemens

Information Not Available

Imperva Web Application Firewall vs. Radware Cloud WAF Service