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A10 Networks Thunder SSL Insight (SSLi) vs Rapid7 AppSpider 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)
Rapid7 AppSpider
Average Rating
7.8
Reviews Sentiment
6.7
Number of Reviews
14
Ranking in other categories
Static Application Security Testing (SAST) (30th)
 

Mindshare comparison

A10 Networks Thunder SSL Insight (SSLi) and Rapid7 AppSpider 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.
Rapid7 AppSpider, on the other hand, focuses on Static Application Security Testing (SAST), holds 0.7% mindshare, up 0.4% 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
Static Application Security Testing (SAST) Market Share Distribution
ProductMarket Share (%)
Rapid7 AppSpider0.7%
SonarQube18.2%
Checkmarx One10.3%
Other70.8%
Static Application Security Testing (SAST)
 

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.
HW
Marketing Expert at J's communication
Clients benefit from broad authentication and effective crawling but need localization improvements
Our clients use AppSpider to address security concerns for their websites. It is particularly used by customers who require security assessments One of the most valuable features of AppSpider is its broad range of authentication identification, which is a key reason for its utilization.…

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."
"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."
"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."
"When it is set up properly, it can do scanning on web apps with multiple engines automatically."
"Rapid7 AppSpider is good at managing different applications. It uses applets and generates reports to cover the PCA/GDPR compliance requirements."
"The entire solution is interactive and has a point-and-click user experience, which makes it easy to find items or drill down on information. You don't need specialized skills to use the product."
"I like the ability the product has to detect vulnerabilities quickly, when it has been released in our environment, then displaying them to us."
"The most valuable feature is the reporting, which is compliant with international standards."
"AppSpider's most valuable feature is reporting - everything is stored in the local database so it can be sent to other machines."
"The most valuable feature of Rapid7 AppSpider is the vulnerability reporting data. Additionally, the data is reported in a convenient way rather than seeing them as a PDF. We are able to generate all the reports exactly what we want in a flexible way."
"One of the most valuable features of AppSpider is its broad range of authentication identification, which is a key reason for its utilization."
 

Cons

"I would like them to have a better UI (better universal design)."
"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."
"The product should offer a GUI in Japanese and provide Japanese reports for end-users."
"There are some glitches with stability, and it is an area for improvement."
"The solution is too slow. It could take a full day to scan. Competitors are much faster."
"AppSpider has some problems with the RAM needed while scanning."
"The tech support is responsive but issues remain unresolved."
"Support response times are slow and can be improved."
"One of the challenges I have with AppSpider is that it gives you a lot of false positives, especially when compared to other solutions."
"Implementing Rapid7 AppSpider requires scanning and self-identification mechanisms. You can add different types of authentication to each scan."
 

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..."
"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."
"The price of Rapid7 AppSpider cost 9,000 annually but there is limited usage. Large companies are able to negotiate a better price or a better deal for the usage with the vendor."
"The price is pretty fair."
"It is expensive if you want to buy the Enterprise version that is able to scan multiple applications at once."
"AppSpider is closed-source software and you need to acquire a license in order to use it."
"The licensing cost depends on the number of users."
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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
13%
Manufacturing Company
11%
Computer Software Company
9%
Educational Organization
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise2
Large Enterprise1
 

Questions from the Community

Ask a question
Earn 20 points
What is your experience regarding pricing and costs for Rapid7 AppSpider?
The price is not high, but for Japanese customers, localization may incur additional costs.
What needs improvement with Rapid7 AppSpider?
For Japanese customers, localization is needed. The product should offer a GUI in Japanese and provide Japanese reports for end-users.
What is your primary use case for Rapid7 AppSpider?
Our clients use AppSpider to address security concerns for their websites. It is particularly used by customers who require security assessments.
 

Also Known As

Thunder SSLi
AppSpider
 

Overview

 

Sample Customers

Klein Independent School District
Microsoft
Find out what your peers are saying about Broadcom, A10 Networks, Gigamon and others in SSL/TLS Decryption. Updated: January 2026.
881,757 professionals have used our research since 2012.