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Apache Web Server 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

Apache Web Server
Ranking in Application Infrastructure
5th
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
23
Ranking in other categories
No ranking in other categories
IIS
Ranking in Application Infrastructure
1st
Average Rating
8.0
Reviews Sentiment
6.9
Number of Reviews
59
Ranking in other categories
Application Server (4th)
 

Mindshare comparison

As of October 2025, in the Application Infrastructure category, the mindshare of Apache Web Server is 11.4%, up from 10.3% compared to the previous year. The mindshare of IIS is 10.5%, down from 12.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Market Share Distribution
ProductMarket Share (%)
IIS10.5%
Apache Web Server11.4%
Other78.1%
Application Infrastructure
 

Featured Reviews

Sanjay Sahu - PeerSpot reviewer
Secure connectivity and efficient software deployment with robust documentation
Apache Web Server effectively runs any web application, including Java-based applications. It includes Apache Tomcat server, which is crucial. We implement SSL to ensure secure connectivity. AI can enhance our tasks, such as extracting logs and identifying errors, and we are exploring implementing AI in this area. The server is known for its efficiency, stability, and free accessibility.
Krishnakumar Natarajan - PeerSpot reviewer
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 solution offers good security."
"Apache Web Server is free of cost."
"It is scalable."
"The most significant advantage is the ability to swiftly enable HTTPS services when my DNS is configured correctly."
"It's reliable, configurable and generally secure."
"The open-source nature is one of its most significant advantages."
"Apache Web Server can be used as a proxy server"
"Most of the features I liked were related to the performance during peak hours."
"Stability-wise, I rate the solution a nine out of ten...Scalability-wise, I rate the solution a nine out of ten."
"We use the solution for our customer's web applications."
"IIS's best features are its management console and stability."
"The solution integrates well with most Microsoft products."
"The solution has been reliable."
"The most valuable feature of IIS is it does not consume a lot of resources. It does not consume a lot of resources, such as memory."
"The interface, simplicity, and ease of management are all good features that make this user-friendly."
"The initial setup is simple."
 

Cons

"The interface has room for improvement."
"By optimizing the infrastructure to allow the webserver to directly handle queries from memory—particularly by prioritizing the storage of queries in memory and processing them through the web server interface—I could potentially cut down the required instances from five hundred to two hundred."
"There is a security-related problem that depends on the web server's configuration."
"The major issue occurs with ports. So, I would like to see easier port management."
"The GUI for the less experienced users needs some improvement. For some companies, it is hard to configure it if they have not had any experience."
"In future releases, I would like to see better server optimization."
"Its stability could be better."
"There isn't a dedicated customer support available"
"Sometimes, we encounter difficult issues, and getting support from Microsoft to resolve those issues is not easy."
"The customer service and support team can be improved."
"The visibility feature of the product is an area with certain shortcomings where improvements are required."
"IIS could improve by having some features related to ASR and HTTPS certificate generation."
"It would be beneficial if you could automate security certificate monitoring with IIS."
"Occasionally, we encounter performance issues with IIS where it becomes unresponsive and requires a solution restart."
"The solution's pricing and stability need improvement."
"The solution is slow and could have better performance."
 

Pricing and Cost Advice

"It is a free-of-cost solution."
"It is an open-source solution."
"There is no licensing cost for the product."
"The apache software is free, open-source."
"The price of the cloud system is a bit high."
"IIS is expensive."
"I didn't need to get an additional license for the solution since it was included in my server."
"IIS's pricing is reasonable."
"The price of Windows Server IIS is expensive. They have a large user base, and they charge a little bit too much."
"There is a license needed for the solution."
"The cost for IIS is already included in Windows services. We don't have to pay anything extra."
"IIS's pricing is not expensive."
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Top Industries

By visitors reading reviews
Computer Software Company
20%
Financial Services Firm
13%
Government
10%
University
6%
Computer Software Company
16%
Financial Services Firm
14%
Government
8%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise8
Large Enterprise10
By reviewers
Company SizeCount
Small Business28
Midsize Enterprise11
Large Enterprise21
 

Questions from the Community

What do you like most about Apache Web Server?
The product's initial setup phase is straightforward.
What is your experience regarding pricing and costs for Apache Web Server?
Apache Web Server is a free product, with no associated setup costs or licensing fees.
What needs improvement with Apache Web Server?
There is no need for substantial improvements as we have a dedicated team managing the server, ensuring everything runs smoothly.
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...
 

Also Known As

Apache HTTP Server
Windows Server IIS
 

Overview

 

Sample Customers

Cisco, Intuit, General Electric, Adobe, VMware, PayPal, HP, EMC, eBay, Apple, SAP, Qualcomm, SanDisk, Allstate, FedEx
Erste Bank Group, NJVC, Samsung Electronics, Sheraton Hotels and Resorts, Tata Steel Europe, Urban Software Institute
Find out what your peers are saying about Apache Web Server vs. IIS and other solutions. Updated: September 2025.
872,778 professionals have used our research since 2012.