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

 

Comparison Buyer's Guide

Executive Summary

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 BIG-IP Local Traffic Man...
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
123
Ranking in other categories
Application Delivery Controllers (ADC) (2nd)
 

Mindshare comparison

A10 Networks Thunder SSL Insight (SSLi) and F5 BIG-IP Local Traffic Manager (LTM) 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 30.7%, up 23.7% compared to last year.
F5 BIG-IP Local Traffic Manager (LTM), on the other hand, focuses on Application Delivery Controllers (ADC), holds 14.9% mindshare, down 15.4% since last year.
SSL/TLS Decryption Market Share Distribution
ProductMarket Share (%)
A10 Networks Thunder SSL Insight (SSLi)30.7%
GigaSMART23.7%
Symantec SSL Visibility Appliance21.7%
Other23.900000000000006%
SSL/TLS Decryption
Application Delivery Controllers (ADC) Market Share Distribution
ProductMarket Share (%)
F5 BIG-IP Local Traffic Manager (LTM)14.9%
NetScaler13.0%
Fortinet FortiADC9.8%
Other62.3%
Application Delivery Controllers (ADC)
 

Featured Reviews

CH
Enterprise Security Manager at a mining and metals company with 5,001-10,000 employees
We used to have to bypass on the firewall, proxy, and IPS; now we can do it in one place
For us, 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. Another thing is SNI. A10 intercepts all the traffic according to the SNI, the server name indicator. It would be better if it intercepted traffic according to the IP addresses. A10 can only understand that a website is within the banking category or the website is in the social media category, according to the SNI. Without SNI, there is no way to understand it; there is no bypass operation. It would be better if worked without SNI as well. Also, the solution comes with web categories like banking and social media. There are suspicious URLs, malicious URLs, etc. It would be better if it had an application category as well. For example, it would be helpful if we had the chance to bypass all Office 365 applications: OneDrive, Skype, Outlook, etc. According to Microsoft, we need to bypass SSL for all Office 365 applications but we need to create custom categories and put all the Microsoft URLs in them and then we can bypass. It would be great if an application category could recognize Dropbox, for example. For now, we have to put the Dropbox URLs in one custom category and bypass them. Application categories could be very useful.
Bonieber  Orofeo - PeerSpot reviewer
IT Manager at Chong Hua Hospital
Identifying compromised traffic and securing data has been a significant advantage
One of the most beneficial features of F5 BIG-IP Local Traffic Manager (LTM) is its ability to identify compromised traffic and its capabilities in authentication. Additionally, the security aspect of it provides a significant advantage as it helps us secure our data, which is a major investment and benefit for us. Before using this system, we had difficulties in storing our data and managing the traffic that comes in and out.

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."
"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."
"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."
"The most valuable feature is the proxy."
"The combination of ADC and WAN is the most valuable feature."
"It makes the publishing of applications to the Internet safer."
"It is a fast and available solution."
"The impact of SSL offloading on reducing server load and latency is very much positive because whatever traffic we receive, we encrypt at our F5 BIG-IP Local Traffic Manager (LTM) level, which has definitely reduced the additional load and SSL decryption load on the servers, so it has very much helped us and it is very smooth; it will not take much time and will not impact our regular traffic."
"The solution's stability is pretty good."
"The load balancing function, the monitors that you can create, and iRules programmability are most valuable."
"Features such as SSL offloading, various balancing methods, and the ability to work with HTTP, HTTPS, or TCP protocols are beneficial."
 

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. 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."
"I would like them to have a better UI (better universal design)."
"The initial setup can take a long time."
"It would be good to have better traffic and better data. It would be nice to have more granularity to see packets in terms of the header details, the analytics, etc. It would be nice if that was also part of it and to have analytics added to the traffic."
"The GUI needs improvement."
"The price for F5 BIG-IP Local Traffic Manager is very high. This aspect could be improved."
"The user experience for dashboards and reports can be improved. They should make dashboards and the reporting system easier for users. They need to add more reports to the dashboard. Currently, for complicated reports, I have to do the customization. It should have more integration with network firewalls to be able to gather all the information required for traffic management."
"There are not very many areas for improvement, but the price is high."
"One area for improvement with F5 BIG-IP LTM could be its pricing, which some may find on the higher side."
"The analytics should provide insight into latency across various traffic routes and virtual servers."
 

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."
"We always pay for support. Any organization of our size who doesn't is asking for problems."
"Our licensing costs, yearly, are just under $15,000. Your initial cost of acquisition is obviously going to be more than $15,000..."
"If your IT budget is good, go for it."
"The price of F5 BIG-IP LTM could improve."
"There are additional costs depending on what modules or what functionality is required."
"Purchasing through the AWS Marketplace was very simple. The main reason that we went this way was the simplicity of buying it there. It is maintained and upgraded for us, and this makes it easy to stay current."
"The licensing pricing seems relatively easy enough to get your head around. I would advise anyone to ensure that you have a conversation with an F5 consultant before purchasing, as you would with most products."
"The tool is a bit expensive."
"The cost is high for this product, so it's not suitable for small customers, e.g. those with small environments."
"F5 isn’t cheap but is worth the price."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
15%
Computer Software Company
9%
Government
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise32
Large Enterprise85
 

Questions from the Community

Ask a question
Earn 20 points
What needs improvement with F5 BIG-IP?
The pricing of F5 BIG-IP Local Traffic Manager (LTM) is on the higher side compared to competitors, but it is worth it.
What is your primary use case for F5 BIG-IP?
Our main use cases involve multiple applications, so we are using F5 BIG-IP Local Traffic Manager (LTM) services, and we are using WAF and ASM services to secure those applications and load balance...
 

Also Known As

Thunder SSLi
F5 BIG-IP, BIG-IP LTM, F5 ASM, Viprion, F5 BIG-IP Virtual Edition , Crescendo Networks Application Delivery Controller, BIG IP
 

Overview

 

Sample Customers

Klein Independent School District
Riken, TransUnion, Tepco Systems Administration, Daejeon University, G&T Bank, Danamon, CyberAgent Inc.
Find out what your peers are saying about Broadcom, A10 Networks, Gigamon and others in SSL/TLS Decryption. Updated: January 2026.
881,821 professionals have used our research since 2012.