Imperva Web Application Firewall vs Link11 comparison

Imperva and Link11 are both solutions in the Web Application Firewall (WAF) category. Imperva is ranked #7 with an average rating of 8.8, while Link11 is ranked #64. Additionally, 97% of Imperva users are willing to recommend the solution, compared to 100% of Link11 users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Jul 6, 2025

Imperva Web Application Firewall and Link11 compete in the web application security category. Imperva seems to have the upper hand due to its comprehensive and customizable protection features.

Features: Imperva Web Application Firewall offers advanced threat intelligence, DDoS protection, and seamless integration with other tools. It provides a comprehensive understanding of dynamic content and learns from both negative and positive security perspectives. Link11 focuses on real-time monitoring and reporting with strong blocking capabilities for botnet attacks. It offers a user-friendly interface for simple rule management and effective threat detection.

Room for Improvement: Imperva users suggest improvements in its GUI, complex rule management, and better bot protection. There is feedback on the need for more intuitive interfaces and faster implementation support. Link11 users seek more granularity in WAF rules and enhanced bot management functionality, reflecting its newer market presence. Link11 needs to improve the depth of security controls and enhance IP address databases.

Ease of Deployment and Customer Service: Imperva offers deployment flexibility with on-premises, hybrid cloud, and public cloud options. Its technical support is responsive but varies, with quicker support for cloud-based solutions. Link11 focuses on cloud deployments, providing streamlined integration across multiple cloud environments. Imperva's support is praised for depth, though slower for on-premises issues, whereas Link11's straightforward cloud focus simplifies support but lacks localized depth.

Pricing and ROI: Imperva is often viewed as expensive, but many users find its protection worth the investment, offering flexible licensing models. The ROI is significant for enterprises facing DDoS risks. Link11 offers competitive pricing with transparent, predictable costs, especially attractive for the educational sector. Its package deals and long-term trials enhance perceived value despite its premium nature.

To learn more, read our detailed Imperva Web Application Firewall vs. Link11 Report (Updated: July 2025).

Buyer's Guide

Imperva Web Application Firewall vs. Link11

July 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

Featured Reviews

Carlos Alam Hernandez Baruch

Engineer at SITMEXICO

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.

Read full review

Mitesh D Patel

Senior Technical Consultant- Cyber Security at Ivalue Infosolution

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.

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Shivendra S.

Senior Director of Engineering - Information Security at Apna

Offers flexibility with a kill switch for bypassing Reblaze if needed and provides a reliable Layer 7 defense against attacks

There is still some room for improvement when it comes to bot management from Reblaze because they are relatively new compared to other vendors in the town. AWS WAF, the Web Application Firewall from AWS, has a vast database of bad IP addresses due to its long-standing presence in this business. Reblaze, being a new entrant, is still building its database of bad IP addresses and malicious systems. So, Reblaze needs to work on that aspect. But other than that, I don't think scaling Reblaze has been an issue. There were some initial glitches, but they were all sorted out. So currently, I would say that the bot management and the database are areas they should focus on for further improvement.

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

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

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

"It is a stable solution. I rate the stability a ten out of ten...I rate the scalability a ten out of ten."

"Cloudflare consolidates various capabilities into one product, streamlining processes."

"The most valuable feature is its usability."

"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."

"Smaller businesses have seen great ROI due to the low investment and strong performance."

More Cloudflare pros

"Imperva WAF's strongest features are the detection of web application threats and vulnerabilities in the source code."

"Imperva Web Application Firewall is stable."

"There are a number of features that are valuable such as the account takeover and various antivirus features."

"The most valuable features of Imperva Web Application Firewall are the monitoring of databases and the dashboards are easy to understand."

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

"There is a quick switch between any of the the nodes if something goes wrong, where there's a there's an attack against a specific area. The security setup is reasonably easy. It's not a problem to do setups and rules and integrations. And, yeah, just the the back end team is also very willing to insist if there's questions that that we cannot answer or with these questions that we do have"

"Imperva Web Application Firewall is a highly stable solution and is very mature."

"Data masking is the most valuable feature of this solution."

More Imperva Web Application Firewall pros

"The feature I find most valuable is the user-friendly dashboard. It is easy to understand how everything works and it allows you to make decisions quickly and efficiently."

"We like the website protection. It's really good. The dashboard is really simple to use."

"Provides mobile app security."

"The most valuable features were the real-time monitoring and the management. With this kind of product, you need a very good management system to allow you to see false positives in real-time; to see what's happening in real-time... The clarity stood out. It was very visible and very easy to navigate; very easy to find the data we were looking for."

"I very much like the elastic search and reports, allowing us to have a 360-degree view of the customer's activities and enabling us to track down any suspicious bots."

"The best thing about Reblaze, for us, is that it has been a game changer because previously, we were using Google's Web Application Firewall, but it wasn't up to the mark."

"The real-time monitoring and reporting are very good. There are information updates in their portal every two minutes. They also have the ability to spill it into Sumo Logic, for example. It's very easy to use."

"It is a highly resilient product that can handle significantly larger workloads and high volumes of traffic with ease."

Cons

"They lack a good way to manage DNS as a company, since everything is relegated to single account logins until you get to the higher levels. They have come out with a paid feature to remedy this, but I have not had a chance to fully review it yet to know if it fixes the access problem."

"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."

"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."

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

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

"The documentation could improve for Cloudflare DNS."

"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."

More Cloudflare cons

"The user interface could be better."

"The only disadvantage of Imperva is that it is a pretty costly solution."

"Imperva Web Application Firewall is very expensive."

"There's always room for improvement. Occasionally, there might be false-positive alerts."

"The reporting is missing some features, such as: only two export formats, and the time period does not include the last day, week, year."

"Imperva Web Application Firewall can improve by adding more features to the dashboard. increasing the visibility of the real-time events, besides configuring the administration itself."

"The support for the on-premises version needs improvement."

"I would like to improve the tool's turnaround time in terms of support."

More Imperva Web Application Firewall cons

"The WAF features are not as granular as we would expect from a WAF system. There should be more granularity and in-depth rules, out-of-the-box."

"Up to now the only cons I could find is sometimes getting change management back on track, because it's a company that evolves, and sometimes I don't have the same needs that they have. But besides that, up until now, I am really pleased with their service and I've also recommended them to some of my clients."

"The next release should have next-generation automation."

"There is room for improvement in helping us understanding session management... We want Reblaze to catch and identify everything. We want to see the various devices doing one activity and to see, in a timeline, what's happened. We would like to see a more human-readable display to understand what's happening in the web app."

"We have multiple products behind different instances of Reblaze. We have one instance for staging and then we have a production instance for multiple products. One of the things that we have requested is a unified view panel, so that we can see each of the instances in a unified view. That way, we won't have to go bouncing from instance to instance."

"I would like to have seen more automated reports. Maybe it has been improved in the last year and I'm just not aware of it. But from a managerial point of view, you want a summary report, a weekly report: How many attacks were blocked? How much bandwidth was saved due to the caching mechanism? What were the top-ten attacks that were tested on the network, etc? I could most likely have found all that data if I logged in to the system and ran different reports. It would be very helpful to get a management report on a weekly basis."

"It would be beneficial if it had a workflow or a feature that could fine-tune settings based on high-level requirements."

"They have an interface that you have to adjust to. That is a bit of a downfall because I expect an interface to be very intuitive for someone who knows little about security. But if you know about security, the interface is wonderful."

Pricing and Cost Advice

"The price is reasonable."

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

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

"So far I use free tier and happy with it. You can subscribe to business package if needed."

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

"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."

"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 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

"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."

"Imperva Web Application Firewall's pricing is expensive."

"The cost of this solution depends on the platform."

"It's an excellent product, but it can be very costly."

"The price of this solution is a little bit high compared to competitors."

"Everybody complains about the price of this solution."

"Make sure you understand the way that Imperva charges. It's very affordable. However, I would like to see a package with the Virtual Patching included. You get to do patching separately."

"The price of Imperva Web Application Firewalls is expensive compared to others."

More Imperva Web Application Firewall pricing and cost advice

"I believe that for the six instances we have right now, it's costing us $16,000 per month."

"There is still some room for improvement when it comes to bot management from Reblaze because they are relatively new compared to other vendors in the town."

"On a monthly basis we pay $750."

"We found the cost to be a bit on the higher side, starting at approximately three to four thousand dollars for a small configuration."

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Top Industries

By visitors reading reviews

Computer Software Company

15%

Comms Service Provider

11%

Financial Services Firm

10%

Manufacturing Company

Financial Services Firm

16%

Computer Software Company

12%

Insurance Company

Manufacturing Company

Computer Software Company

19%

Financial Services Firm

Comms Service Provider

Educational Organization

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...

See all answers

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

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

My recommendation is Imperva.

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

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 ...

See all answers

What do you like most about Reblaze?

It is a highly resilient product that can handle significantly larger workloads and high volumes of traffic with ease.

See all answers

What is your experience regarding pricing and costs for Reblaze?

We found the cost to be a bit on the higher side, starting at approximately three to four thousand dollars for a smal...

See all answers

What needs improvement with Reblaze?

There is a potential improvement regarding simplifying the complexity of rule creation. It would be beneficial if it ...

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 3% of the time

Azure DNS vs Cloudflare

Compared 3% of the time

Myra Security DDoS Protection vs Cloudflare

Compared 2% of the time

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Microsoft Azure Application Gateway vs Imperva Web Application Firewall

Compared 15% of the time

F5 Advanced WAF vs Imperva Web Application Firewall

Compared 12% of the time

Azure Front Door vs Imperva Web Application Firewall

Compared 9% of the time

AWS WAF vs Imperva Web Application Firewall

Compared 8% of the time

NetScaler vs Imperva Web Application Firewall

Compared 3% of the time

More Imperva Web Application Firewall Competitors

AWS WAF vs Link11

Compared 11% of the time

Akamai App and API Protector vs Link11

Compared 10% of the time

Cloudflare One vs Link11

Compared 8% of the time

Imperva DDoS vs Link11

Compared 7% of the time

F5 Advanced WAF vs Link11

Compared 6% of the time

Product Reports

Buyer's Guide

Cloudflare

July 2025

Download Cloudflare product report

Buyer's Guide

Imperva Web Application Firewall

July 2025

Download Imperva Web Application Firewall product report

Buyer's Guide

Link11

July 2025

Download Link11 product report

Also Known As

Cloudflare DNS

No data available

Reblaze

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

Link11, headquartered in Germany, offers cloud-based IT security services designed to prevent business disruptions, enhancing cyber resilience for IT networks and critical applications globally. Their services benefit industries across Europe, North America, and Asia with comprehensive protection.

Link11 provides a range of security and performance solutions, including Network Security, Web Application & API Protection, and Application Performance solutions. Their offerings encompass Network DDoS protection and an all-in-one WAAP solution, featuring Web Application Firewall, Web DDoS Protection, Bot Management, API Protection, and Secure CDN & DNS. A high-performance global network, monitored 24/7 by the Link11 Security Operations Center, ensures robust defense mechanisms.

What are the key features of Link11?

User-friendly dashboard simplifies monitoring and management.
Real-time monitoring provides instant visibility into potential threats.
Advanced DDoS protection safeguards against various attack vectors.
API integration enhances mobile app security.
Comprehensive bot management includes ATO and botnet blocking.

What benefits and ROI can users expect?

Seamless security management supported by dedicated customer support channels.
Efficient rule creation and prioritization streamline security workflows.
Continuous improvements in filtering against SQL and script injections enhance security.
Effective activity monitoring provides alerts on suspicious activities.

Link11 is suited for industries wanting to protect web applications against Layer 7 DDoS attacks, cross-site scripting, SQL injection, and phishing attempts. Deployed on cloud models, Link11 integrates as a fundamental security layer, offering effective bot management and securing websites with multiple technologies.

Link11

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

CBC, Hermes, Gartner

Buyer's Guide

Imperva Web Application Firewall vs. Link11

July 2025

Free Report: Imperva Web Application Firewall vs. Link11

Find out what your peers are saying about Imperva Web Application Firewall vs. Link11 and other solutions. Updated: July 2025.

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