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A10 Networks Thunder SSL Insight (SSLi) vs F5 SSL Visibility [EOL] comparison

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A10 Networks and F5 are both solutions in the SSL/TLS Decryption category. Additionally, 75% of A10 Networks users are willing to recommend the solution, compared to 100% of F5 users who would recommend it.
A10 Networks Thunder SSL In...
Read 3 A10 Networks Thunder SSL Insight (SSLi) reviews
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75% willing to recommend
 

Comparison Buyer's Guide

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Executive Summary
We performed a comparison between A10 Networks Thunder SSL Insight (SSLi) and F5 SSL Visibility [EOL] based on real PeerSpot user reviews.

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

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To learn more, read our detailed SSL/TLS Decryption Report (Updated: October 2026).
Buyer's Guide
SSL/TLS Decryption
October 2026
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Helped 917,433 peers since 2012

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
3
Ranking in other categories
SSL/TLS Decryption (2nd)
F5 SSL Visibility [EOL]
Average Rating
8.4
Number of Reviews
3
Ranking in other categories
No ranking in other categories
 

Featured Reviews

KM
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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reviewer1508217 - PeerSpot reviewer
reviewer1508217
Manager, User Services at a university with 5,001-10,000 employees
Secure, highly reliable, and scalable
Given our long, good track record with the solution, I would advise if you can afford this solution then purchase it. It is a great solution. As for rating the solution, nothing is a 10 because there is always something to improve. I rate F5 SSL Visibility a nine out of ten.
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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

"This is one of those devices that, once you turn it on and it's functioning properly, you'll forget that you have it."
"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, 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."
"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."
"Given our long, good track record with the solution, I would advise if you can afford this solution then purchase it."
"Every scenario we have put the solution through it has been able to handle it one way or another."
"Just the very functionality of the load balancer has been very useful to our organization."
"The initial setup isn't too difficult."
"Its security features are very good; it has normal security, and then it has add-on security with a separate license, which I find very good, and it is also very stable."
 

Cons

"SSLi is a very powerful device. It has many features and to get them configured is kind of tough."
"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."
"The most difficult thing that we have to deal with is SSL Hardening. Vulnerabilities are found in various ciphers, getting them removed, identifying them, et cetera."
"The price of the solution is a little high."
"It can have more features on the cloud side because we are moving a lot of servers to our cloud. Its support and scalability also need improvement. Currently, their technical support is slow, and its scalability is complex. It should have integrated SSL decryption with some special machine algorithm to tell us about certain kinds of security issues. Currently, it can decrypt, but it should also provide more information. It can have some kind of algorithm to inform us about how the packets should or shouldn't be. It should inform us when certain things are happening. When users are going to the internet and it sees an abnormal behavior or abnormal type of traffic, it should alarm us about this. It should tell us that there is some kind of strange traffic, and it shouldn't be like that. Currently, it lacks in this aspect."
"Their technical support is not good in comparison to other network companies. They take a long time to respond."
"The installation is complex but not more than other competitors."
 

Pricing and Cost Advice

"When you purchase the equipment, you purchase the licensing and warranty. It's all fairly standard. We haven't been caught with anything surprising."
"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."
"The price of the solution is a little high."
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Top Industries

By visitors reading reviews
Outsourcing Company
14%
Comms Service Provider
9%
Manufacturing Company
9%
Construction Company
7%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Comparisons

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Symantec SSL Visibility Appliance vs A10 Networks Thunder SSL Insight (SSLi)
Compared 14% of the time
GigaSMART vs A10 Networks Thunder SSL Insight (SSLi) Logo
GigaSMART vs A10 Networks Thunder SSL Insight (SSLi)
Compared 11% of the time
F5 BIG-IP Local Traffic Manager (LTM) vs A10 Networks Thunder SSL Insight (SSLi) Logo
F5 BIG-IP Local Traffic Manager (LTM) vs A10 Networks Thunder SSL Insight (SSLi)
Compared 10% of the time
Comodo Essential SSL Wildcard Certificate vs A10 Networks Thunder SSL Insight (SSLi) Logo
Comodo Essential SSL Wildcard Certificate vs A10 Networks Thunder SSL Insight (SSLi)
Compared 8% of the time
More A10 Networks Thunder SSL Insight (SSLi) Competitors
No data available
 

Product Reports

Buyer's Guide
A10 Networks Thunder SSL Insight (SSLi)
October 2026
A10 Networks Thunder SSL Insight (SSLi) reportDownload A10 Networks Thunder SSL Insight (SSLi) product report
Buyer's Guide
SSL/TLS Decryption
October 2026
F5 SSL Visibility [EOL] reportDownload F5 SSL Visibility [EOL] product report
 

Also Known As

Thunder SSLi
No data available
 

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

The majority of malware and data exfiltration hides within SSL/TLS encryption, blinding your security inspection tools. Decrypt and orchestrate to make your controls more effective.

F5
 

Sample Customers

Klein Independent School District
American Systems, MAXIMUS, Motorists Insurance Group, Talentsoft , ZipWhip, LivePerson, SHINSEGAE INTERNET DUTY FREE
Buyer's Guide
SSL/TLS Decryption
October 2026
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