Microsoft IIS vs. NGINX

Overview
ProductRatingMost Used ByProduct SummaryStarting Price
Microsoft IIS
Score 8.1 out of 10
N/A
Microsoft IIS is an application server and infrastructure.N/A
NGINX
Score 9.0 out of 10
Mid-Size Companies (51-1,000 employees)
NGINX, a business unit of F5 Networks, powers over 65% of the world's busiest websites and web applications. NGINX started out as an open source web server and reverse proxy, built to be faster and more efficient than Apache. Over the years, NGINX has built a suite of infrastructure software products o tackle some of the biggest challenges in managing high-transaction applications. NGINX offers a suite of products to form the core of what organizations need to create…N/A
Pricing
Microsoft IISNGINX
Editions & Modules
No answers on this topic
No answers on this topic
Offerings
Pricing Offerings
Microsoft IISNGINX
Free Trial
NoYes
Free/Freemium Version
NoYes
Premium Consulting/Integration Services
NoYes
Entry-level Setup FeeNo setup feeOptional
Additional Details——
More Pricing Information
Community Pulse
Microsoft IISNGINX
Considered Both Products
Microsoft IIS
Chose Microsoft IIS
Apache and Nginx are what we use for our large websites and public data. When dealing with the type of traffic we see on our sites IIS just doesn't scale out well. For our staff levels, Apache and Nginx are very hard to support for all of our projects so we can't always use …
Chose Microsoft IIS
Apache and Nginx are both lower overhead solutions compared to IIS, but require extensive configuration through files or command lines. For someone creating a website for the first time, these solutions are difficult to understand and implement.
Chose Microsoft IIS
Nginx is hard to support for smaller multiple projects, which is one reason we use the Microsoft IIS server, which is best fit for a set-up once and forget scenario. The Apache server is more recommended for smaller sized projects due to its cost factor, as the Microsoft IIS …
Chose Microsoft IIS
After using both Microsoft IIS and free Linux alternatives, like NGINX and Apache, I have to say I much prefer the Linux products in every way. Configuration is clearer (you have to edit config files deep in Linux somewhere, but once you've done it once, it's easy). Logging is …
Chose Microsoft IIS
IIS is easier to configure and manage. Doesn't require deep knowledge of the product to manage it. Doesn't require for IT team to learn Linux/Unix OS for basic web hosting. However, for advanced IT specialists, all three solutions could be useful and can work together.
Chose Microsoft IIS
I feel each has their own strengths, when it came to developing the in house applications ASP gave us more features so we went with IIS to support those features.
Chose Microsoft IIS
IIS is a different animal than most webservers. I don't know that I'd compare IIS to other products. The differences and reasons to use each are so diverse.
Chose Microsoft IIS
Microsoft IIS is the only official way to run ASP.NET framework sites and for Microsoft System management tools (SCCM and WSUS). While open source options like Apache and NGINX are more commonly used in our department, to maintain the best compatibility we use IIS in certain …
NGINX
Chose NGINX
Nginx is one of the top three web servers and sits in the second position in terms of the amount of servers deployed. The main competition comes from Apache and Apache-based forks on Linux based servers, and less-so from Microsoft IIS on Windows based servers. As stated …
Chose NGINX
Microsoft IIS server is not open source and it comes with its own overhead in terms of cost which is not the case with Nginx as we do not need to purchase a handful of other products in order to get an HTTP server up and running. If I compare it to Apache Server, it …
Chose NGINX
The support and ability to provide near zero downtime for changes is a winner. The lightweight engine also helps reduce cost.
Chose NGINX
Easy to Install and configure.
Pick the configuration dynamically without restarting
All the configurations at one place
Chose NGINX
MS IIS and Apache HTTP Server both provide many similar services. However the configuration simplicity, and performance characteristics helped us choose NGINX above the other 2 products.
Chose NGINX
Nnginx is more light-weight than many other web servers, has a very expressive configuration language, easier to configure than tools like IIS and Apache, easy to install certificates for SSL, much easier to model complex routing scenarios than IIS, easier to configure than …
Chose NGINX
Nginx is way easier to configure and runs better than Microsoft’s offering, in my opinion, and I’ll take it over Apache for its simplicity.
Chose NGINX
Other Web servers are either not performant enough or locked to a platform. The main competitor in my opinion is the Apache Web Server, that can be extended in functionality through a diverse set of modules to perform almost any task related to a network server. But at scale, I …
Chose NGINX
I selected Nginx because it is easy to learn, use, and maintain. I almost never have to troubleshoot it ever since I deploy it. It just meets my need for a personal learning experience. It works well with PHP and MySQL on Linux. That is why I chose it at first.
Chose NGINX
Configuration options are easier on Nginx. It's better suited for our cases. It's easier to find specialists for Nginx in our area.
Chose NGINX
It's lightweight and it does not require complex configurations for simple scenarios. If you want you can accomplish some other complicated tasks like reverse proxies which are well supported by the product.
Chose NGINX
Nginx struck the right balance for us of raw speed, power, convenience, and simplicity.

  • I don't like the idea of hosting all of our open source PHP-based websites on Microsoft Windows servers with IIS, so that option was out first.
Top Pros
Top Cons
Features
Microsoft IISNGINX
Application Servers
Comparison of Application Servers features of Product A and Product B
Microsoft IIS
7.5
28 Ratings
6% below category average
NGINX
8.2
21 Ratings
3% above category average
IDE support8.020 Ratings7.310 Ratings
Security management7.028 Ratings8.018 Ratings
Administration and management8.028 Ratings8.018 Ratings
Application server performance8.028 Ratings8.618 Ratings
Installation9.028 Ratings9.418 Ratings
Open-source standards compliance5.017 Ratings7.916 Ratings
Best Alternatives
Microsoft IISNGINX
Small Businesses
NGINX
NGINX
Score 9.0 out of 10
Apache HTTP Server
Apache HTTP Server
Score 8.2 out of 10
Medium-sized Companies
NGINX
NGINX
Score 9.0 out of 10
Apache Tomcat
Apache Tomcat
Score 8.8 out of 10
Enterprises
NGINX
NGINX
Score 9.0 out of 10
Apache Tomcat
Apache Tomcat
Score 8.8 out of 10
All AlternativesView all alternativesView all alternatives
User Ratings
Microsoft IISNGINX
Likelihood to Recommend
8.9
(28 ratings)
8.9
(48 ratings)
Likelihood to Renew
10.0
(1 ratings)
9.1
(1 ratings)
Usability
10.0
(9 ratings)
9.0
(1 ratings)
Availability
8.0
(1 ratings)
-
(0 ratings)
Performance
7.8
(2 ratings)
-
(0 ratings)
Support Rating
9.4
(6 ratings)
8.1
(4 ratings)
Ease of integration
8.2
(2 ratings)
-
(0 ratings)
Product Scalability
8.0
(1 ratings)
-
(0 ratings)
User Testimonials
Microsoft IISNGINX
Likelihood to Recommend
Microsoft
Publishing applications or websites is easy with Microsoft IIS. You don't need external software or complicated tutorials involving command lines and editing configuration files. On other hand, sometimes the troubleshooter needs a high knowledge of Windows Server, Registry, and tools to debug the application. If you need to host non-Microsoft technology as PHP pages or have a low budget, I recommend IIS equivalent software as Apache.
Read full review
F5
[NGINX] is very well suited for high performance. I have seen it used on servers with 1k current connections with no issues. Despite seeing it used in many environments I've never seen software developers use it over apache, express, IIS in local dev environments so it may be more difficult to setup. I've also seen it used to load balance again without issues.
Read full review
Pros
Microsoft
  • A big advantage that we use all the time is reviewing the logs that automatically get generated in IIS. It has helped us troubleshoot various problems in our applications over the years.
  • IIS integrates really well with Visual Studio and TFS. We are able to quickly deploy new applications and changes to applications when requested by the business.
  • IIS has proven that it is easy to configure and maintain with minimal effort.
Read full review
F5
  • Very low memory usage. Can handle many more connections than alternatives (like Apache HTTPD) due to low overhead. (event-based architecture).
  • Great at serving static content.
  • Scales very well. Easy to host multiple Nginx servers to promote high availability.
  • Open-Source (no cost)!
Read full review
Cons
Microsoft
  • Angular/node apps don't run on IIS, or at least we never figured out how. Rather we ended up using nginx.
  • There are still occasional memory leaks - check your recycle settings!
  • If you have very heavy usage for web APIs, IIS requires regular restarts for reasons unknown.
Read full review
F5
  • Customer support can be strangely condescending, perhaps it's a language issue?
  • I find it a little weird how the release versions used for Nginx+ aren't the same as for open source version. It can be very confusing to determine the cross-compatibility of modules, etc., because of this.
  • It seems like some (most?) modules on their own site are ancient and no longer supported, so their documentation in this area needs work.
  • It's difficult to navigate between nginx.com commercial site and customer support. They need to be integrated together.
  • I'd love to see more work done on nginx+ monitoring without requiring logging every request. I understand that many statistics can only be derived from logs, but plenty should work without that. Logging is not an option in many environments.
Read full review
Likelihood to Renew
Microsoft
We have no intention to replace all applications running on top of the IIS platform. Not all applications support other platforms and not all support staff are skilled in Linux/Apache platform support. Whereas IIS may not be the best performing or most secure web platform available, for the aforementioned reasons, it is impossible not to continue use of this product.
Read full review
F5
Great value for the product
Read full review
Usability
Microsoft
As I've mentioned earlier, Microsoft IIS is very simple and easy to use. The user interface is a little bit overloaded with a huge number of different options, but once you have a little clue of what you are doing and what you need - no issues at all.
Read full review
F5
Front end proxy and reverse proxy of Nginx is always useful. I always prefer to Nginx in overall usability when you have application server and database or multiple application servers and single database i.e. clustered application. Nginx provides really good features and flexibility which helps the system administrator in case of troubleshooting and also from the administration perspective. Also, Nginx doesn't delay any request because of internal performance issues.
Read full review
Reliability and Availability
Microsoft
ARR (application request routing) in Microsoft IIS Server enables the web-admins to increase the web app reliability and availability through the rule based routing and load balancing of HTTP requests which in turn provides highly available server. IIS 7.0 Manager also provides kernel as well as user mode caching for faster performance and in case if the server fails, the IIS server has good amount of details logged in its log files which help understand and debug the cause quickly. Load balancing facilitates IIS server to fight against availability issues.
Read full review
F5
No answers on this topic
Performance
Microsoft
In my experience, I have never had significant issues with IIS performance. Sometimes I've experienced issues with loading time, but it is mostly related to the web site code. However Amazon, Microsoft and Google providing free cloud services with very limited resources, and in that scenario, "heavy" websites on IIS could be the issue. In other situations - performance is good.
Read full review
F5
No answers on this topic
Support Rating
Microsoft
As mentioned earlier there is so much documentation or guides or stack overflow questions out there that someone will have faced the same or very similar scenario to what you are going through that you will almost certainly find a solution to what you are after.
Read full review
F5
Community support is great, and they've also had a presence at conferences. Overall, there is no shortage of documentation and community support. We're currently using it to serve up some WordPress sites, and configuring NGINX for this purpose is well documented.
Read full review
Alternatives Considered
Microsoft
Apache is java. Java is unnecessary complex. No developer wants to invest in learning all the hundreds of text based configuration files to get something done. Also, apache gives you the most evil and un-usable user interface possible. [Microsoft] IIS makes [life] after development easy, which is already complex enough to be bothered by something as mundane as exposing your work over the internet.
Read full review
F5
We have used Traffic, Apache, Google Cloud Load Balancing and other managed cloud-based load balancers. When it comes to scale and customization nothing beats Nginx. We selected Nginx over the others because
  • we have a large number of services and we can manage a single Nginx instance for all of them
  • we have high impact services and Nginx never breaks a sweat under load
  • individual services have special considerations and Nginx lets us configure each one uniquely
Read full review
Scalability
Microsoft
Microsoft IIS Server is scalable if the underlying server configuration is done correctly. Use x64 edition v/s 32bit and using 32bit mode application pools are some of the tweaks to be done to make the IIS server scalable. There are too many small configurations need to be carried out in order to make a highly scalable IIS server hence not giving full score in this area.
Read full review
F5
No answers on this topic
Return on Investment
Microsoft
  • Allowing us to internally host our monitoring websites allows quick access to data that can be quite hidden, saving developer time.
  • It was inexpensive compared to more bulky solutions saving upfront cost.
  • It’s easy to install and enable allowing more developer savings.
Read full review
F5
  • Nginx has decreased the burden of web server administration and maintenance, and we are spending less time on server issues than when we were using Apache.
  • Nginx has allowed more people in our company to get involved with configuring things on the web server, so there's no longer a single point of failure ("the Apache guy").
  • Nginx has given us the ability to handle a larger number of requests without scaling up in hardware quite so quickly.
Read full review
ScreenShots

NGINX Screenshots

Screenshot of Overview of the NGINX Application PlatformScreenshot of NGINX Controller - MonitoringScreenshot of NGINX Controller - Configuration