IIS vs NGINX Controller comparison

Microsoft and F5 are both solutions in the Application Infrastructure category. Microsoft is ranked #1 with an average rating of 8.5, while F5 is ranked #19 with an average rating of 7.0. Microsoft holds a 10.4% mindshare in AIS, compared to F5’s 0.9% mindshare. Additionally, 90% of Microsoft users are willing to recommend the solution, compared to 100% of F5 users who would recommend it.

IIS

Read 61 IIS reviews

3,518 Views
2,322 Comparison Views

90% willing to recommend

NGINX Controller

Read 1 NGINX Controller review

180 Views
180 Comparison Views

100% willing to recommend

IIS

NGINX Controller

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Executive Summary

We performed a comparison between IIS and NGINX Controller based on real PeerSpot user reviews.

Find out what your peers are saying about Microsoft, IBM, F5 and others in Application Infrastructure.

To learn more, read our detailed Application Infrastructure Report (Updated: February 2026).

Buyer's Guide

Application Infrastructure

February 2026

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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

IIS

Ranking in Application Infrastructure

1st

Average Rating

8.2

Reviews Sentiment

6.7

Number of Reviews

Ranking in other categories

Application Server (4th)

NGINX Controller

Ranking in Application Infrastructure

19th

Average Rating

7.0

Reviews Sentiment

5.2

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of February 2026, in the Application Infrastructure category, the mindshare of IIS is 10.4%, down from 12.7% compared to the previous year. The mindshare of NGINX Controller is 0.9%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Application Infrastructure Market Share Distribution
Product	Market Share (%)
IIS	10.4%
NGINX Controller	0.9%
Other	88.7%

Application Infrastructure

Featured Reviews

Krishnakumar Natarajan

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.

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Satheesh Papisetty

Digital Services & Engagement Senior Manager at AXA

Load balancing and security strengthen operations while error handling needs improvement

We use NGINX Controller for load balancing purposes. Our use case involves integrating it with a three-tier architecture, where it serves as a critical component for application routing, handling index pages, and enhancing security The most valuable features of NGINX Controller include its…

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Quotes from Members

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

Pros

"Stability-wise, I rate the solution a nine out of ten...Scalability-wise, I rate the solution a nine out of ten."

"The most valuable feature of IIS is the database it provides."

"The tool is very easy to use and efficient."

"IIS has a very simple and user-friendly interface, which helps a lot in effective and efficient management."

"The solution is simple and very easy to manage compared to Linux."

"IIS works natively with Windows Server without any issues in publishing certificates."

"The solution is very simple to use and easy to deploy."

"IIS is useful for the deployment of web applications...Its stability is good."

More IIS pros

"NGINX Controller is cheap compared to other solutions, and it offers significant cost and time savings."

Cons

"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."

"Sometimes if you are using IIS in large-scale scenarios, meaning that if you are deploying an application within IIS service and you are expecting a large number of users to use this application, you can sometimes find some problems, meaning that the service can shut down by itself unexpectedly if you don't configure your IIS with the correct configuration that can handle this number of users."

"The visibility feature of the product is an area with certain shortcomings where improvements are required."

"Occasionally, we encounter performance issues with IIS where it becomes unresponsive and requires a solution restart."

"The areas of this solution that need improvement are monitoring, debugging, and troubleshooting."

"They need to improve their response time and first level support quality because the escalation process takes too long."

"The solution's pricing and stability need improvement."

"Scalability issues and security concerns need attention from Microsoft."

More IIS cons

"The technical support from NGINX Controller is not good. They do not offer quick responses or 24/7 support, which is lacking when immediate assistance is needed."

Pricing and Cost Advice

"Users can get a subscription-based license or a perpetual license for IIS."

"The product's price is not high."

"I didn't need to get an additional license for the solution since it was included in my server."

"There is an annual license to use this solution and the price could be better."

"The cost for IIS is already included in Windows services. We don't have to pay anything extra."

"We purchased a Microsoft Windows license and the license for IIS came in the package."

"The price of the cloud system is a bit high."

"I give the price of the solution a five out of ten."

More IIS pricing and cost advice

Information not available

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Top Industries

By visitors reading reviews

Financial Services Firm

13%

Computer Software Company

12%

Comms Service Provider

Government

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	29
Midsize Enterprise	11
Large Enterprise	22

No data available

Questions from the Community

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,...

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What do you like most about IIS?

The product is flexible.

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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...

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What is your experience regarding pricing and costs for NGINX Controller?

NGINX Controller is cheap compared to other solutions, and it offers significant cost and time savings.

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What needs improvement with NGINX Controller?

The error handling in NGINX Controller requires improvement. The handling of misconfigurations is not good enough and needs enhancements.

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What is your primary use case for NGINX Controller?

We use NGINX Controller ( /products/nginx-controller-reviews ) for load balancing purposes. Our use case involves integrating it with a three-tier architecture, where it serves as a critical compon...

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Comparisons

Apache Web Server vs IIS

Compared 22% of the time

NGINX Plus vs IIS

Compared 21% of the time

Tomcat vs IIS

Compared 7% of the time

Red Hat JBoss Enterprise Application Platform (EAP) vs IIS

Compared 6% of the time

Oracle WebLogic Server vs IIS

Compared 5% of the time

More IIS Competitors

No data available

Product Reports

Buyer's Guide

IIS

January 2026

Download IIS product report

Buyer's Guide

Application Infrastructure

February 2026

Download NGINX Controller product report

Also Known As

Windows Server IIS

No data available

Overview

Internet Information Services (IIS) provides a secure, easy-to-manage, modular and extensible platform for reliably hosting websites, services and applications. With IIS, you get choice and control without giving up reliability or security.

Microsoft

Built to manage NGINX Plus instances at scale, NGINX Controller provides DevOps and developers a self-service, API driven control plane for their most critical application and security services. Manage and monitor load balancers, API gateways, and web application firewalls across any cloud, all from a single pane of glass.

The NGINX Controller API Management Module is an API management solution, combining NGINX Plus as an API gateway with new control‑plane functionality. NGINX Controller is designed to empower Infrastructure & Operations and DevOps teams to define, publish, secure, monitor, and analyze APIs, without compromising performance.

Sample Customers

Erste Bank Group, NJVC, Samsung Electronics, Sheraton Hotels and Resorts, Tata Steel Europe, Urban Software Institute

Information Not Available

Buyer's Guide

Application Infrastructure

February 2026

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