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IIS PHP Windows vs OpenLiteSpeed comparison

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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

IIS PHP Windows
Ranking in Application Server
8th
Average Rating
9.2
Reviews Sentiment
5.0
Number of Reviews
4
Ranking in other categories
No ranking in other categories
OpenLiteSpeed
Ranking in Application Server
16th
Average Rating
8.6
Reviews Sentiment
6.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Application Server category, the mindshare of IIS PHP Windows is 0.9%. The mindshare of OpenLiteSpeed is 0.1%. It is calculated based on PeerSpot user engagement data.
Application Server Mindshare Distribution
ProductMindshare (%)
IIS PHP Windows0.9%
OpenLiteSpeed0.1%
Other99.0%
Application Server
 

Featured Reviews

Gaurav-Bansal - PeerSpot reviewer
Support Engineer at a tech vendor with 5,001-10,000 employees
Hosting client blogs has become straightforward but resource usage still needs improvement
IIS PHP Windows has positively impacted my organization by helping to deploy customer websites that have very small budgets, allowing the organization to assist those clients, which builds trust with them. It enables the organization to help them run their small websites, and while some clients had bigger projects, they also wanted their small websites to run, such as a personal blog. Client satisfaction was high because a Windows server can be monitored, and the customer's websites could remain up and running all the time. If something happens and the application crashes, we could simply grab the logs from the event viewer to check memory limits and investigate what is happening. Additionally, the client could perform some of the management using the GUI management interface in IIS.
Tilak Rohitsingh - PeerSpot reviewer
System Engineer at TEKsystems
Improved page loading speeds have attracted more visitors and support ongoing performance tuning
OpenLiteSpeed is the best performance I can get for free. It has helped us reduce the loading times of our web pages and increased the speed from 45% to 95%, which has led to more visitors. It has also made its basic implementation very easy It's an amazing open-source webserver. With the right…

Quotes from Members

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

Pros

"IIS PHP Windows has positively impacted my organization by helping to deploy customer websites that have very small budgets, allowing the organization to assist those clients, which builds trust with them."
"In my experience, the best features IIS PHP Windows offers include allowing us to host the PHP application with better performance compared to XAMPP, which we were previously using because XAMPP was giving slow performance."
"IIS PHP Windows impacts my organization positively because my applications perform very well here when compared with XAMPP."
"If you want to host your PHP or Laravel-based application in Windows, you can definitely use this extension, and using this extension you can host your PHP or Laravel application in IIS and it will have super speed."
"OpenLiteSpeed has positively impacted my organization by providing faster websites, resulting in more satisfied clients thanks to the caching."
"OpenLiteSpeed is the best performance I can get for free."
 

Cons

"I chose a rating of seven out of ten because IIS PHP Windows is good for small enterprises with manageable aspects, but it has very high resource usage and requires a Windows server license, contributing to the overall cost."
"OpenLiteSpeed can be improved by addressing some minor misconfigurations in WordPress and caching, as something that is cached when it should not be is not always easy to pinpoint."
"Setup can be a bit complicated."
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Top Industries

By visitors reading reviews
Construction Company
44%
Comms Service Provider
11%
Outsourcing Company
8%
Healthcare Company
8%
Construction Company
40%
Comms Service Provider
10%
Outsourcing Company
9%
Transportation Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Large Enterprise2
By reviewers
Company SizeCount
Small Business1
Large Enterprise6
 

Questions from the Community

What needs improvement with IIS PHP Windows?
IIS PHP Windows can be improved regarding its higher resource usage. Unlike a Linux web server that is very lightweight, the resource usage is higher on Windows. I chose a rating of seven out of te...
What is your primary use case for IIS PHP Windows?
My main use case for IIS PHP Windows is to deploy it for WordPress websites and Laravel custom applications so they can run on IIS using the PHP provider and PHP version. I used IIS PHP Windows for...
What advice do you have for others considering IIS PHP Windows?
Regarding IIS PHP Windows' security, I think its governance and security are solid as long as you configure Windows Active Directory correctly and all Windows authentication so that no other users ...
What needs improvement with OpenLiteSpeed?
OpenLiteSpeed can be improved by addressing some minor misconfigurations in WordPress and caching, as something that is cached when it should not be is not always easy to pinpoint. Improvements cou...
What is your primary use case for OpenLiteSpeed?
My main use case for OpenLiteSpeed is hosting client websites, primarily WordPress sites with caching plugins connected to OpenLiteSpeed. I host many WordPress sites with medium traffic, and OpenLi...
 

Overview

Find out what your peers are saying about IIS PHP Windows vs. OpenLiteSpeed and other solutions. Updated: October 2026.
915,341 professionals have used our research since 2012.