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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

"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."
"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."
"it has TCP LAN and WAN optimization features. It has has caching."
"Where we are finding the AWS version helpful is when we are trying to scale up new environments. AWS Marketplace helps here a lot."
"F5's attack signatures and automation are the most valuable features. The disaster recovery capabilities are also excellent. You don't need to do anything. It has automatic failover from production."
"The BIG-IP’s interface is more intuitive than other GUIs. It is well structured, not overloaded, and does not have too many gimmicks."
"The stability is excellent."
"The scalability of the solution depends on the sizing of the network. Generally, the scalability is quite good."
"The value and impact of using F5 BIG-IP LTM for application delivery control in our organization are significant."
"What we like best about this solution is its stability. It is extremely stable."
 

Cons

"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."
"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."
"I would like them to have a better UI (better universal design)."
"Lacking in free training to help users understand the product more, so they would know how to correctly use it. Like other vendors and their products, becoming more proactive is an area for improvement."
"The user interface could be improved in F5 BIG-IP Local Traffic Manager."
"There are issues with F5 BIG-IP but they are minor issues not affecting production and services. Sometimes the operations and the facility systems fail. However, there is an alert action from the windows. An ordeal for the manager."
"Implementing whitepapers with a lot more applications could easily be added."
"Bugs are the part of program and they are fixed with every release, as with any vendor."
"While the licensing is good through the AWS Marketplace, it is more expensive than what you could buy yourself."
"This is a very expensive solution."
"LTM's cloud capabilities could be improved. Cloud providers all offer load balancing, but you can't get the same level of security. F5's cloud service is still not on par with its on-prem service."
 

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."
"It's fair, it's not too expensive. Maybe just a little high."
"We have found the pricing and licensing on AWS to be competitive."
"It could be priced a little less, especially on the virtual side. It gets a bit expensive, but you get what you pay."
"You can buy it on a yearly basis, or you can go for a subscription. For on-premise boxes, it is just the RMA."
"We purchased through the AWS Marketplace because it was a popular way to go, and we were intrigued. The price of this product is not an issue. They have good pricing and licensing."
"The licensing strategy for F5 is good."
"This solution comes with a standard license, and there are also extra licenses that can be obtained. The licenses are purchasable for durations of one, two, three, and five years. The hardware is something to consider when purchasing"
"It is a little pricey. I wish the pricing was cheaper, but I wish the pricing was cheaper for everything."
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Top Industries

By visitors reading reviews
Manufacturing Company
12%
University
10%
Recreational Facilities/Services Company
8%
Educational Organization
6%
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.
881,665 professionals have used our research since 2012.