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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 (27th)
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 June 2026, in the Application Infrastructure category, the mindshare of Azul Zing is 2.9%, down from 4.1% compared to the previous year. The mindshare of IIS is 7.1%, down from 11.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Mindshare Distribution
ProductMindshare (%)
IIS7.1%
Azul Zing2.9%
Other90.0%
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

"With minimal effort, Zing has helped us improve our latency performance dramatically."
"With Zing, we've now been able to re-allocate those tuning resources to general product development."
"With minimal effort, Zing has helped us improve our latency performance drastically."
"GC Pause times are maintained in low milliseconds, which is beneficial for applications with high volume, high memory allocation rate, and a high memory footprint, and it also increases throughput by approximately 20-25% as compared to Oracle Java Development Kit based on some tests that I have done with real applications."
"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."
"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."
"IIS works natively with Windows Server without any issues in publishing certificates."
"IIS is easy to configure in terms of websites and other solutions."
"The tool shows us the operating systems where our servers and applications are running."
"This is definitely a stable solution."
"Windows Server IIS is stable."
"The product is scalable."
"IIS is scalable."
"IIS is quite easy to set up as it comes pre-configured, so I don't have to install anything."
 

Cons

"The profiling tools included with Zing lag behind those available for Oracle's Java implementation."
"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."
"However, like every other great product, there is always something that can be improved."
"It is extremely expensive."
"Although Azul claims to have a fast warmup, we still experience higher latency for the first trade when our system starts up on Sundays."
"Although Azul claims to have a fast warmup, we still experience higher latency for the first trade when our system starts up on Sundays."
"The solution's scalability needs improvement."
"The solution must improve the integration between its databases."
"The product could be more compatible with Linux and macOS, particularly when applying user configuration policies."
"IIS could improve the error logging. There are times we are not able to see the errors. More details would be helpful. Additionally, the configuring of the IIS should be allowed through coding instead of the classic view."
"This solution needs to be easier for cases where you want to have an IIS cluster."
"It should be more user-friendly because unless you know how IIS works as a Microsoft product, a system admin cannot just manage it."
"IIS's memory management could be improved."
"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."
 

Pricing and Cost Advice

Information not available
"We purchased a Microsoft Windows license and the license for IIS came in the package."
"There is no license required for the product as it is role-based. Whenever you go for a Windows platform server, the role has to be installed directly from the server manager. There is no additional cost that has to be paid for that. It is free to use."
"Users can get a subscription-based license or a perpetual license for IIS."
"IIS comes along with an OS license from Microsoft. Others can opt for a perpetual-based licensing model to be able to use the system."
"The yearly licensing cost is very high. The solution is very expensive."
"I give the price of the solution a five out of ten."
"We pay a yearly licensing fee for the solution."
"They offer a one-time payment model for the product license, and we pay annually for support."
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Top Industries

By visitors reading reviews
Financial Services Firm
23%
Manufacturing Company
14%
Construction Company
11%
Comms Service Provider
7%
Financial Services Firm
15%
Manufacturing Company
11%
Construction Company
9%
Computer Software Company
9%
 

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 Business29
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: June 2026.
900,644 professionals have used our research since 2012.