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Azul Zing vs IIS comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 5, 2025

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

Azul Zing
Ranking in Application Infrastructure
16th
Average Rating
9.6
Reviews Sentiment
8.2
Number of Reviews
9
Ranking in other categories
AI Customer Experience Personalization (34th)
IIS
Ranking in Application Infrastructure
1st
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
61
Ranking in other categories
Application Server (4th)
 

Mindshare comparison

As of August 2026, in the Application Infrastructure category, the mindshare of Azul Zing is 2.8%, down from 3.7% compared to the previous year. The mindshare of IIS is 6.6%, down from 11.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Mindshare Distribution
ProductMindshare (%)
IIS6.6%
Azul Zing2.8%
Other90.6%
Application Infrastructure
 

Featured Reviews

it_user500349 - PeerSpot reviewer
CTO at a financial services firm with 51-200 employees
It has helped us improve our latency performance drastically
As a large scale high performance trading platform serving the high frequency trading community, latency has always been critical for our clients. Before using Azul Zing JVM, we would have had to spend a lot of effort tuning our JVM GC and profiling our application to minimize latency, which is…
Krishnakumar Natarajan - PeerSpot reviewer
Systems Engineer at Atos
Designs and manages multiple websites while ensuring data backup and disaster recovery
I have experience with AWS, and I am most familiar with the server environment, as we just use the server environment and then use Microsoft products on an AWS environment. I have experience with Windows Server IIS, which I ran on my own on-premise data center. The website was developed and then hosted, and through IIS, we managed the servers. The manageability within the IIS environment is not very difficult. For server management, you need to ensure data backup, data restore, and you have a DR configured to keep the database intact. It was done on-premises, so I had no problem doing that. If you have to go to the cloud, then you should have the storage connected to the IIS server and also have a DR set up for that. I didn't use Microsoft Azure tools, but since it is a Microsoft product, Azure has all the portability, so you don't have to worry about compatibility on the cloud. On a scale of 1-10, I would rate this solution a 10.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The non-stop garbage collector (C4 - Continuously Concurrent Compacting Collector) is the most valuable feature."
"With minimal effort, Zing has helped us improve our latency performance dramatically."
"With minimal effort, Zing has helped us improve our latency performance drastically."
"Performance of the JVM, especially the C4 Pauseless Garbage Collection, for continuous application execution is the most valuable feature."
"Zing has completely solved the garbage collection problem for us."
"With Zing, we've now been able to re-allocate those tuning resources to general product development."
"No other JVM on the market even comes close to competing with the Azul Zing."
"With minimal effort, Zing has helped us improve our latency performance dramatically."
"My advice for anybody who is considering this solution is to go ahead with it."
"The product is scalable."
"The initial setup of IIS is easy. The process takes only five minutes."
"The solution is very simple to use and easy to deploy."
"It is an easy-to-use and secure program."
"It helps scan and mitigates our vulnerabilities using the best protocols to secure our environment."
"The solution is highly reliable."
"IIS is a stable solution for .NET applications."
 

Cons

"Although Azul claims to have a fast warmup, we still experience higher latency for the first trade when our system starts up on Sundays."
"However, like every other great product, there is always something that can be improved."
"The licensing over non-production environments considerably affects the cost of our solution as a software vendor."
"We have encounter stability issues and that has been a source of frustration at times."
"Although Azul claims to have a fast warmup, we still experience higher latency for the first trade when our system starts up on Sundays."
"It is extremely expensive."
"The profiling tools included with Zing lag behind those available for Oracle's Java implementation."
"The documentation of IIS could be better. They are not easily accessible. I had to use YouTube and other online resources to learn how to use the solution properly."
"Occasionally, we encounter performance issues with IIS where it becomes unresponsive and requires a solution restart."
"The solution must improve the integration between its databases."
"It is not compatible with other platforms due to limitations."
"The security must be improved."
"Having no support for other than a Microsoft environment and programming languages limits the usage of IIS in many cases."
"The solution's black box is not fast."
"The solution is slow and could have better performance."
 

Pricing and Cost Advice

Information not available
"The price of Windows Server IIS is expensive. They have a large user base, and they charge a little bit too much."
"I was using the trial version of IIS inside my virtual machines."
"The solution provides multiple licensing options."
"We purchased a Microsoft Windows license and the license for IIS came in the package."
"I didn't need to get an additional license for the solution since it was included in my server."
"They offer a one-time payment model for the product license, and we pay annually for support."
"This solution comes included with Windows Server."
"IIS's pricing is reasonable."
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Top Industries

By visitors reading reviews
Financial Services Firm
23%
Manufacturing Company
14%
Construction Company
12%
Outsourcing Company
9%
Financial Services Firm
14%
Manufacturing Company
10%
Comms Service Provider
10%
Construction Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise4
Large Enterprise2
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise11
Large Enterprise22
 

Questions from the Community

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Which is better - IIS or NGINX Plus?
IIS is a flexible, secure, and manageable web server to host anything on the web. IIS’s scalable and open architecture can handle the most demanding tasks. From media streaming to web applications,...
What is your experience regarding pricing and costs for IIS?
For the pricing, setup cost, and licensing for IIS, as a Microsoft product, I didn't think much about separately purchasing an IIS product as it is part of Microsoft Windows. We bought a developmen...
What needs improvement with IIS?
I see that IIS has maintained the same interface for a long time, so they could potentially use more automation or integrate Copilot into it to make it easier to use. I have not accessed or checked...
 

Comparisons

 

Also Known As

No data available
Windows Server IIS
 

Overview

 

Sample Customers

Priceline, RBS, Credit Suisse, ING, Creditex, Nielsen, Workday, Saks Fifth Avenue, Entergy, Quotix, Puma and many more.  Visit azul.com for more.
Erste Bank Group, NJVC, Samsung Electronics, Sheraton Hotels and Resorts, Tata Steel Europe, Urban Software Institute
Find out what your peers are saying about Azul Zing vs. IIS and other solutions. Updated: August 2026.
908,800 professionals have used our research since 2012.