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. Imperva holds a 5.6% mindshare in WAF, compared to Link11’s 0.1% mindshare. Additionally, 97% of Imperva users are willing to recommend the solution, compared to 100% of Link11 users who would recommend it.

Imperva Web Application Fir...

Read 52 Imperva Web Application Firewall reviews

4,495 Views
2,154 Comparison Views

97% willing to recommend

Link11

Read 10 Link11 reviews

65 Views
19 Comparison Views

100% willing to recommend

Imperva Web Application Fir...

Link11

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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 Web Application Firewall (WAF) Report (Updated: June 2025).

Buyer's Guide

Web Application Firewall (WAF)

June 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

Imperva Web Application Fir...

Ranking in Web Application Firewall (WAF)

7th

Average Rating

8.6

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

No ranking in other categories

Link11

Ranking in Web Application Firewall (WAF)

64th

Average Rating

8.8

Reviews Sentiment

7.4

Number of Reviews

Ranking in other categories

CDN (21st), Distributed Denial-of-Service (DDoS) Protection (25th), API Security (31st)

Mindshare comparison

As of July 2025, in the Web Application Firewall (WAF) category, the mindshare of Imperva Web Application Firewall is 5.6%, down from 6.6% compared to the previous year. The mindshare of Link11 is 0.1%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Web Application Firewall (WAF)

Featured Reviews

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.

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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

"Its inline transferring mode is the most valuable because it is 100% transparent. When you change the IP, there is no change on the network side. If you can't and want to try to reach an IP, you can reach the server IP. There are many other advanced security features in it. The smallest appliances of Imperva can handle the highest traffic at a customer site. For example, a smaller appliance from Imperva can provide you the same security as an F5 product."

"The solution is cloud-based and offers us good uptime. It has combined web and API security. Therefore, with one license, you access both application security and also API security."

"Imperva is easy to use and deploy. The UI is excellent."

"Very intuitive and granular configuration - It does not require much time, or advanced knowledge, for configuration and maintenance."

"The valuable features of Imperva WAF include its effective security breach prevention through automatically updating rules."

"Imperva monitors all traffic, even customer access, to the web application. Then, Imperva uses features like signatures to identify attacks like cross-site scripting or SQL injection."

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

"Configuration for different application sources is most valuable. We can segregate the traffic that an application is carrying and identify the sizing in Imperva."

More Imperva Web Application Firewall pros

"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."

"The main feature is using the rules and being able to see the traffic. It helps us find malicious traffic."

"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."

"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."

"Provides mobile app security."

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

"Reblaze knows how to manage security. For me as, someone who knows little about security, it's good that I have a firm that optimizes everything according to their standards. It's their responsibility and they are fully hands-on."

Cons

"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."

"Sometimes our web application firewall will slow down."

"Imperva Web Application Firewall is a good system, but we found that the visibility of the diverse-path server, e.g. where the traffic is coming from, the different IPs, etc., needs improvement."

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

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

"I think that better bot protection is needed in this solution."

"They can provide an option to create reports, automatically import the entire report, and create rules again. In a real-life crisis, it would be helpful to be able to import a report and generate security rules from that report. I should be able to create a simple query and import the reports automatically. It can maybe also tell us the format of the report."

More Imperva Web Application Firewall cons

"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."

"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."

"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."

"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."

"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."

"Some of the settings on the dashboard are confusing."

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

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

Pricing and Cost Advice

"Imperva’s pricing is a bit higher in the market since it offers a full-blown WAF."

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

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

"The tool is expensive."

"Everybody complains about the price of this solution."

"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 solution's pricing is an issue."

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

More Imperva Web Application Firewall pricing and cost advice

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

"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."

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Top Industries

By visitors reading reviews

Financial Services Firm

16%

Computer Software Company

12%

Insurance Company

Manufacturing Company

Computer Software Company

19%

Comms Service Provider

Educational Organization

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?

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 have to look for other ADC's like F5, Imperva, Radware, Fortinet, etc.

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 of DDoS attacks that were well managed (even not seen by the customer) by Imperv...

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 small configuration. It is worth mentioning that these figures might not be current....

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 had a workflow or a feature that could fine-tune settings based on high-level re...

See all answers

Comparisons

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

Fortinet FortiWeb vs Imperva Web Application Firewall

Compared 6% of the time

More Imperva Web Application Firewall Competitors

Cloudflare vs Link11

Compared 46% of the time

AWS WAF vs Link11

Compared 12% 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

Product Reports

Buyer's Guide

Imperva Web Application Firewall

June 2025

Download Imperva Web Application Firewall product report

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

June 2025

Download Link11 product report

Also Known As

No data available

Reblaze

Overview

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

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

CBC, Hermes, Gartner

Buyer's Guide

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June 2025

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