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IIS vs Oracle WebLogic Server vs Tomcat comparison

 

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:
 

ROI

Sentiment score
7.1
Organizations found IIS provided positive ROI, cost savings, and accessibility, particularly benefiting security and cloud-based pay-as-you-go models.
Sentiment score
7.2
Oracle WebLogic Server offers long-term benefits, optimizing deployment and performance despite high initial costs and expertise requirements.
Sentiment score
8.7
Tomcat delivers quick ROI with minimal investment, offering scalability, ease of deployment, and significant time and cost savings.
 

Customer Service

Sentiment score
6.5
Many users find IIS support satisfactory but face delays, relying on community resources and Microsoft documentation for help.
Sentiment score
6.7
Oracle WebLogic Server support is reliable but costly, with mixed reviews on response times and first-level knowledge.
Sentiment score
6.3
Tomcat's support relies heavily on community and documentation, with limited formal assistance but effective community engagement and consultation services.
Microsoft provides a lot of online documentation to consult before speaking to an expert.
There are typically no significant issues.
I would rate customer service and support from Oracle for this product as either nine or ten.
They are proactive in looking into the tickets we create in case we have unresolved queries.
 

Scalability Issues

Sentiment score
7.1
IIS scalability depends on setup and configuration, supporting thousands but requires careful planning for large deployments.
Sentiment score
7.5
Oracle WebLogic Server is scalable, suitable for large datasets; challenges may arise with configurations, but offers high ratings.
Sentiment score
7.6
Tomcat offers high scalability and adaptability, excelling in cloud environments with positive user feedback on its reliability.
I would rate the scalability of IIS as a six, mainly due to integration issues since it cannot integrate with other environments.
It depends on the server environment and the presence of a UPS for power backup.
I find Oracle WebLogic Server to be highly scalable, rating it as nine out of ten.
 

Stability Issues

Sentiment score
7.8
IIS is stable and reliable, though compatibility with non-Microsoft technologies presents occasional performance issues and improvement suggestions exist.
Sentiment score
7.9
Oracle WebLogic Server is reliable with high stability ratings but has minor memory and update-related concerns.
Sentiment score
7.9
Tomcat is stable and reliable for small applications, needing careful configuration and updates for optimal performance with high traffic.
I would give it a nine out of ten for stability.
I would rate IIS's stability as an eight out of ten.
 

Room For Improvement

IIS faces compatibility, setup, monitoring, and cost issues, needing enhancements in scalability, security, UI, and open-source support.
Oracle WebLogic Server needs better integration, microservices support, stability, memory management, customer support, and simpler configurations.
Tomcat struggles with compatibility, scalability, speed, unfriendly interface, high memory use, and needs better security, documentation, and performance.
It's influenced by the server's service performance.
If I compare IIS to other web servers such as Apache, which can be deployed in other environments like Linux, I find IIS is mostly used for simple things.
Using scripting allows for the creation of resources.
Tomcat needs a more robust logging error details feature; the current logging feature is available, but it should be more user-friendly.
 

Setup Cost

Enterprise buyers find IIS cost-effective with Windows Server, appreciating licensing flexibility despite some complaints about overall expense.
Oracle WebLogic Server's per-core pricing can be costly, especially compared to free alternatives like JBoss or Tomcat.
Tomcat is cost-effective, open-source, with potential additional costs for licenses and optional paid support services.
If you have a Windows license, there is no additional cost for IIS.
 

Valuable Features

IIS is valued for its integration, security, and reliability, offering seamless web hosting for Microsoft applications.
Oracle WebLogic Server provides robust features like scalability, security, and reliability, making it ideal for enterprise applications.
Tomcat is popular for its lightweight, high performance, scalability, and open-source compatibility, ideal for Java-based applications.
It is easy to publish websites with SSL, and it integrates well within the local environment and cloud.
The configurations are simple, making it very easy to use and to set up everything.
It also offers cluster services, which means I can install, create clusters, and add WebLogic Servers as members.
The advantages of Tomcat include its flexibility; we can increase the heap memory and the size of sessions as per our custom needs.
 

Mindshare comparison

As of May 2025, in the Application Server category, the mindshare of IIS is 7.1%, up from 6.9% compared to the previous year. The mindshare of Oracle WebLogic Server is 24.4%, down from 26.2% compared to the previous year. The mindshare of Tomcat is 19.9%, down from 20.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Server
 

Featured Reviews

DanielWildermuth - PeerSpot reviewer
Provides integration with Eggplant but problems with stability
We use Windows Server only for Eggplant Manager. Otherwise, I'm not using it   At the moment, we have big problems with stability, and I'm not very happy at the moment. So, the stability could be improved. I have been using it for a few years.  The initial setup is complex.  We have an…
Saikat Nag - PeerSpot reviewer
Offers efficient load distribution with a scope of high scalability
Our organization configures Oracle WebLogic Server in such a way that a load balancer becomes available. The network requests are segregated to the Oracle WebLogic Server as the managing server and different nodes are configured. Using the product as a load balancer helps automate request transfer from one non-functional node to another functional node. Due to Oracle WebLogic Server, the endpoints remain unaffected whenever a node goes down. The clustering feature enhances our organization's performance and reliability. In our organization, the health of the Oracle WebLogic Server environment is maintained and managed using Oracle Enterprise Manager (OEM). I would definitely recommend others to use Oracle WebLogic Server. Overall, I would rate the solution an eight out of ten.
Erick  Karanja - PeerSpot reviewer
Offers high availability, straightforward deployment and easy to use
Tomcat could be a little bit more innovative. Tomcat could come up with a framework that's more lightweight and purely targeted at Java applications. Some other solutions are doing better right now, maybe because they have come up with MicroProfile, which I think is moving forward. It may actually beat Tomcat because of the lightweight nature of the framework, the MicroProfile. They're coming up with new solutions. So, for the future of Tomcat and to maintain the market share they might be looking for, they need to come up with initiatives to ensure that several of us have a lightweight framework to deploy applications on.
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Financial Services Firm
14%
Manufacturing Company
9%
Government
8%
Financial Services Firm
19%
Government
12%
Computer Software Company
12%
Manufacturing Company
7%
Educational Organization
42%
Financial Services Firm
15%
Computer Software Company
7%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 architectur...
What is your experience regarding pricing and costs for IIS?
If you have a Windows license, there is no additional cost for IIS. However, you may need to pay for SSL publishing a...
What needs improvement with Oracle WebLogic Server?
There is an option to use the WebLogic console as a service, but the WebLogic scripting tool can be used for the admi...
What is your primary use case for Oracle WebLogic Server?
I primarily work from an infrastructure point of view with Oracle WebLogic Server ( /products/oracle-weblogic-server-...
What do you like most about Tomcat?
Tomcat's ease of use has positively impacted project timelines. Tomcat already has high availability – it doesn't go ...
What needs improvement with Tomcat?
Resource configuration like JNDI and queue configuration, similar to other servers, should be provided from the admin...
What is your primary use case for Tomcat?
I am using the solution at running level three. It is for running web applications.
 

Also Known As

Windows Server IIS
WebLogic Application Server
No data available
 

Overview

 

Sample Customers

Erste Bank Group, NJVC, Samsung Electronics, Sheraton Hotels and Resorts, Tata Steel Europe, Urban Software Institute
Colab Consulting Pty. Ltd., Infosys Ltd., Sascar, Banca Transilvania, UL, Center for Railway Information Systems, SPAR Austria Group, Reliance Commercial Finance, Industrial Bank of Korea, Al Jaber Group, Safe Water Kenya, Chhattisgarh Infotech and Biotech Promotion Society
1. Adobe Systems 2. Amazon 3. Apple 4. AT&T 5. Bank of America 6. Boeing 7. Cisco Systems 8. Citigroup 9. Dell 10. eBay 11. Facebook 12. General Electric 13. Google 14. Hewlett-Packard 15. IBM 16. Intel 17. JPMorgan Chase 18. Microsoft 19. Netflix 20. Oracle 21. PayPal 22. Salesforce 23. Samsung 24. Sony 25. Target 26. Twitter 27. Uber 28. Verizon 29. Visa 30. Volkswagen 31. Walmart 32. Yahoo
Find out what your peers are saying about Oracle, Apache, Red Hat and others in Application Server. Updated: May 2025.
851,042 professionals have used our research since 2012.