A10 Networks Thunder SSL Insight (SSLi) vs Imperva Application Security Platform comparison

The compared A10 Networks and Imperva solutions aren't in the same category. A10 Networks is ranked #2 in STD , and holds a 27.3% mindshare in the category. Imperva is ranked #4 in DDOS , with an average rating of 8.5, and holds a 8.5% mindshare. Additionally, 75% of A10 Networks users are willing to recommend the solution, compared to 95% of Imperva users who would recommend it.

A10 Networks Thunder SSL In...

Read 3 A10 Networks Thunder SSL Insight (SSLi) reviews

666 Views
346 Comparison Views

75% willing to recommend

Imperva Application Securit...

Read 147 Imperva Application Security Platform reviews

15,498 Views
5,269 Comparison Views

95% willing to recommend

A10 Networks Thunder SSL In...

Imperva Application Securit...

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Executive Summary

We performed a comparison between A10 Networks Thunder SSL Insight (SSLi) and Imperva Application Security Platform based on real PeerSpot user reviews.

Find out what your peers are saying about Broadcom, A10 Networks, Gigamon and others in SSL/TLS Decryption.

To learn more, read our detailed SSL/TLS Decryption Report (Updated: May 2026).

Buyer's Guide

SSL/TLS Decryption

May 2026

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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

A10 Networks Thunder SSL In...

Average Rating

9.0

Number of Reviews

Ranking in other categories

SSL/TLS Decryption (2nd)

Imperva Application Securit...

Average Rating

8.6

Reviews Sentiment

6.9

Number of Reviews

147

Ranking in other categories

CDN (2nd), Web Application Firewall (WAF) (1st), Distributed Denial-of-Service (DDoS) Protection (4th), Bot Management (1st), API Security (2nd)

Mindshare comparison

A10 Networks Thunder SSL Insight (SSLi) and Imperva Application Security Platform aren’t in the same category and serve different purposes. A10 Networks Thunder SSL Insight (SSLi) is designed for SSL/TLS Decryption and holds a mindshare of 27.3%, up 25.0% compared to last year.
Imperva Application Security Platform, on the other hand, focuses on Distributed Denial-of-Service (DDoS) Protection, holds 8.5% mindshare, up 7.6% since last year.

SSL/TLS Decryption Mindshare Distribution
Product	Mindshare (%)
A10 Networks Thunder SSL Insight (SSLi)	27.3%
Symantec SSL Visibility Appliance	23.2%
GigaSMART	21.3%
Other	28.200000000000003%

SSL/TLS Decryption

Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
Product	Mindshare (%)
Imperva Application Security Platform	8.5%
Cloudflare	14.0%
Arbor DDoS	7.2%
Other	70.3%

Distributed Denial-of-Service (DDoS) Protection

Featured Reviews

Kenneth Murray

Data Center Network Engineer at BRIDGETON PUBLIC SCHOOLS

Enables our content filter to do its job without any noticeable delay

Its most valuable feature is its ability to do its job accurately, effectively, and very quickly. The amount of traffic that we have going through our system is astounding. We have 6,900 students and about 1,100 staff members. Most of our teachers and staff are connecting through our system. You add to that all the cell phones, the iPads, and all the computers, and then each individual website's connection, that's a lot of traffic in a period of one second. The delay with the SSL decryption turned on is almost unnoticeable. That is great because most SSL decryption solutions — a couple of competitors we did try — their devices crashed as soon as we turned decryption on.

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reviewer2818155

Senior Associate at a tech vendor with 10,001+ employees

Application protection has improved and reporting and dashboards still need refinement

I believe Imperva Application Security Platform should have a more interactive wizard. While the dashboard is good, it could be more eye-catching. Based on my perspective, I recommend modifying the dashboards, especially the main dashboard where I can see the traffic hit count, alerts, and other latest information. In terms of reporting, I find it challenging to create reports; in my earlier days, it was difficult. Over time, I have learned how to create reports, but it should be easier to do so. I have used other tools such as firewalls or SolarWinds, where creating a report is straightforward and does not take much time, unlike in Imperva, where I have to add many elements. Modifications in the integration aspects would also be beneficial.

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

"Its most valuable feature is its ability to do its job accurately, effectively, and very quickly. The amount of traffic that we have going through our system is astounding... The delay with the SSL decryption turned on is almost unnoticeable."

"This is one of those devices that, once you turn it on and it's functioning properly, you'll forget that you have it."

"With the Thunder SSLi, we're better protected; we can stop use of VPN and proxies, are better protected against dirty traffic coming back to our schools, and having a secure decrypt zone with the equipment lowers the chances that our security infrastructure could possibly miss an attack."

"We have several proxies in our environment, so we localized internet traffic between these proxies. Instead of getting a really huge proxy box, according to our size, we can use three boxes and share the traffic with A10's load-balancer feature."

"By not renewing six proxy boxes, rather just three of them, it saved over $100,000."

"With the Thunder SSLi, we're better protected. We can stop use of VPN and proxies. We are better protected against dirty traffic coming back to our schools. Having a secure decrypt zone with the equipment lowers the chances that our security infrastructure could possibly miss an attack."

"Human contact Fast SLA Trustworthy and excellent communication Highly-functional back office with user friendly reports and intelligence on bad IPS and malicious software is at very high level and very quick."

"It has threat intelligence and we are using Incapsula. With threat intelligence, we can separate HTTP and HTTPS traffic. We can use Incapsula to send all the threat intelligence to the WAF."

"The solution can be configured in just a couple of minutes."

"Our ROI is about 45% since deployment on reduction of our cloud bill."

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

"I see valuable benefits from advanced detection and traffic profiling during DDoS attacks, and I track some metrics related to DDoS protection performance."

"Imperva Incapsula WAF is an awesome solution for implementing a WAF with good support and reliable hardware performance."

"I would recommend this solution to others; it has been working fine for us, and it has all the features that we need."

More Imperva Application Security Platform pros

Cons

"There is one thing I would like to see changed. In their features for setting things up, there is a templating system that would normally assist clients."

"I would like them to have a better UI (better universal design)."

"There is one thing I would like to see changed. In their features for setting things up, there is a templating system that would normally assist clients. However, we had a better time setting up the device either through the command line or through the interface and not using the templates that were pre-installed. So there is room for improvement to the templates for initial installation."

"It would be great if it supported SSL operations according to Active Directory users. For example, if we want to bypass one of the servers or a client's internet access for SSL interception, we have to do it according to the IP address. It would be better if we could do it according to the Active Directory username. A10 says they kind of support that but we haven't tested it."

"SSLi is a very powerful device. It has many features and to get them configured is kind of tough."

"I would like to have support for SSL management and secure DNS."

"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."

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

"Support is one thing I wish Imperva could improve."

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

"The rules surrounding the making of web applications could be improved."

"The product's customization capabilities are a bit problematic, requiring support cases for backend modifications."

"I'd like the option to pick your bot protection."

More Imperva Application Security Platform cons

Pricing and Cost Advice

"Our licensing costs, yearly, are just under $15,000. Your initial cost of acquisition is obviously going to be more than $15,000..."

"We always pay for support. Any organization of our size who doesn't is asking for problems."

"When you purchase the equipment, you purchase the licensing and warranty. It's all fairly standard. We haven't been caught with anything surprising."

"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 cost is on par with other solutions such as Cloudflare and Akamai."

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

"Varies depending on the needs of the customer."

"The pricing is somewhat expensive. It is actually a huge investment when compared to other countries."

"It is a very expensive solution. The price is very high. A lot of customers tell us that they would love to use Imperva more. I have some customers who have 50 websites, but they have only 10 websites on Imperva because of the price. They would love to have all their websites running through Imperva, but they can't. They have to choose the more critical websites to protect because the price is very high. It is a very good product, but it is too expensive. If you buy a plan for 20 megabytes and you don't consume all of your 20 megabytes, it is okay, but if you consume more, you are charged for the superior traffic."

"The tool's pricing is good."

"The price is high compared to other solutions like FortiWeb."

More Imperva Application Security Platform pricing and cost advice

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Top Industries

By visitors reading reviews

No data available

Financial Services Firm

12%

Manufacturing Company

Computer Software Company

Comms Service Provider

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	88
Midsize Enterprise	25
Large Enterprise	70

Questions from the Community

Ask a question

Earn 20 points

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 management.

See all answers

What is your experience regarding pricing and costs for Imperva DDoS?

The pricing, setup costs, and licensing of Imperva DDoS are reasonable for the amount of technical capabilities provided. I would rate the pricing of Imperva DDoS as five, where one is very cheap a...

See all answers

What needs improvement with Imperva DDoS?

I would like to see improvements in the pooling of threats and attacks, possibly to enlarge the scale of indicators of compromise. For example, the initiation of an attack on the endpoint level cou...

See all answers

Comparisons

F5 BIG-IP Local Traffic Manager (LTM) vs A10 Networks Thunder SSL Insight (SSLi)

Compared 25% of the time

Fortinet FortiADC vs A10 Networks Thunder SSL Insight (SSLi)

Compared 21% of the time

GigaSMART vs A10 Networks Thunder SSL Insight (SSLi)

Compared 21% of the time

Symantec SSL Visibility Appliance vs A10 Networks Thunder SSL Insight (SSLi)

Compared 18% of the time

Comodo Essential SSL Wildcard Certificate vs A10 Networks Thunder SSL Insight (SSLi)

Compared 15% of the time

More A10 Networks Thunder SSL Insight (SSLi) Competitors

Cloudflare vs Imperva Application Security Platform

Compared 10% of the time

Akamai vs Imperva Application Security Platform

Compared 5% of the time

Fortinet FortiWeb vs Imperva Application Security Platform

Compared 5% of the time

AWS WAF vs Imperva Application Security Platform

Compared 3% of the time

Fastly vs Imperva Application Security Platform

Compared 3% of the time

More Imperva Application Security Platform Competitors

Product Reports

Buyer's Guide

A10 Networks Thunder SSL Insight (SSLi)

May 2026

A10 Networks Thunder SSL Insight (SSLi) report

Download A10 Networks Thunder SSL Insight (SSLi) product report

Buyer's Guide

Imperva Application Security Platform

May 2026

Imperva Application Security Platform report

Download Imperva Application Security Platform product report

Also Known As

Thunder SSLi

Imperva Bot Management, Imperva Web Application Firewall, Imperva API Security

Overview

A10 Networks Thunder SSL Insight (SSLi) enhances network visibility by decrypting SSL traffic, allowing enterprises to inspect encrypted data seamlessly.

A10 Networks Thunder SSL Insight (SSLi) is designed for businesses needing in-depth traffic inspection while maintaining security compliance. By decrypting SSL traffic, it ensures deeper visibility into encrypted data without compromising security. It integrates smoothly into existing infrastructures, offering comprehensive analytics and real-time threat detection capabilities, addressing the growing challenge of encrypted traffic in networks.

What are the key features of A10 Networks Thunder SSLi?

Advanced Traffic Decryption: Efficiently decrypts SSL traffic for seamless inspection.
Scalable Integration: Easily fits within existing network architectures.
Comprehensive Analytics: Delivers detailed insights into network traffic.

What benefits can users expect from A10 Networks Thunder SSLi?

Enhanced Security: Improves threat detection by exposing encrypted threats.
Increased Visibility: Provides a clearer understanding of network traffic patterns.
Improved Compliance: Helps ensure adherence to security regulations.

A10 Networks Thunder SSL Insight (SSLi) is widely implemented in finance and healthcare sectors, where data security and compliance are critical. It supports seamless integration that assists these industries in maintaining strict privacy standards while gaining comprehensive insight into network activities.

A10 Networks

Imperva Application Security Platform delivers comprehensive and continuous web threat protection. Renowned for its ease of use, it shields web applications and databases from various cyber threats while integrating seamlessly with cloud and on-premises environments.

Imperva Application Security Platform protects web environments by offering advanced security measures against threats like DDoS attacks, SQL injections, and cross-site scripting. As a robust web application firewall, it provides extensive monitoring and bot management capabilities. The platform integrates content delivery networks for enhanced performance and scalability, while real-time traffic analysis ensures consistent protection. Despite its strengths, improvements can be made in policy management and customization options. Users seek better integration with third-party tools and more competitive pricing models. The inclusion of AI for enhanced analytics is also anticipated.

What are the key features of Imperva Application Security Platform?

Correlated Attack Validation: Enhances threat assessment by linking related security events.
Threat Radar: Offers visibility into potential and ongoing threats.
Virtual Patching: Provides protection against vulnerabilities without immediate code changes.
IncapRules: Allows creation of custom security policies.
DDoS Protection: Defends against large-scale distributed denial-of-service attacks.
CDN Integration: Improves content delivery speed and reliability.

What benefits should users look for in reviews?

User-Friendly Administration: Simplifies setup and ongoing management tasks.
Seamless Integration: Ensures smooth operation with existing infrastructure.
Comprehensive Threat Protection: Shields digital assets from a wide range of threats.
Hands-On Support: Provides timely and effective customer service assistance.

Imperva Application Security Platform is implemented in industries needing strong database and application protection. Companies use it to enforce geolocation restrictions and manage bots, benefiting sectors like finance and e-commerce where data security and threat monitoring are critical. Its ability to protect and ensure data accessibility makes it integral to business operations prioritizing cyber resilience.

Imperva

Sample Customers

Klein Independent School District

Hitachi, BNZ, Bitstamp, Moz, InnoGames, BTCChina, Wix, LivePerson, Zillow and more.

Find out what your peers are saying about Broadcom, A10 Networks, Gigamon and others in SSL/TLS Decryption. Updated: May 2026.

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