What Web Server Does Qlik Sense Use?


Scott Campbell

What Web Server Does Qlik Sense Use?

When it comes to deploying and hosting web applications, the choice of a web server is crucial. Qlik Sense, a powerful business intelligence platform, also relies on a web server to serve its content and facilitate user interactions.

The Qlik Sense Web Server

The web server used by Qlik Sense is called Qlik Web Server (QWS). This server is specifically designed to handle the unique requirements of hosting and serving Qlik Sense apps and visualizations.

QWS provides a robust and secure environment for users to access their Qlik Sense content. It offers various features that enhance performance, scalability, and security.

Key Features of Qlik Web Server

  • Scalability: QWS is built to handle large-scale deployments and can efficiently serve multiple concurrent users accessing Qlik Sense apps simultaneously.
  • Load Balancing: To distribute user requests evenly across multiple servers, QWS supports load balancing. This ensures optimal performance even during peak usage periods.
  • Caching: The server incorporates caching mechanisms to improve response times by storing frequently accessed data in memory.

    This reduces the need for repeated data retrieval from underlying data sources.

  • Security: With built-in security features, such as encryption and authentication mechanisms, the Qlik Web Server ensures that user data remains protected. It also supports integration with existing security systems like Active Directory for seamless authentication.

Architecture of the Qlik Web Server

The architecture of the Qlik Web Server involves several components working together to enable efficient hosting and delivery of Qlik Sense content.

1. Proxy Service: The Proxy Service acts as an intermediary between the user’s browser and the Qlik Web Server. It handles authentication, session management, and routing of requests to the appropriate Qlik Sense services.

2. Repository Service: The Repository Service is responsible for storing and managing metadata related to Qlik Sense apps, users, and security rules. It ensures that access permissions are enforced correctly when users interact with the web interface.

3. Engine Service: The Engine Service is the heart of Qlik Sense, responsible for handling data retrieval, aggregation, and visualization calculations. It performs in-memory data processing to deliver interactive visualizations with high performance.


In summary, Qlik Sense utilizes its own dedicated web server called Qlik Web Server (QWS) to host and serve its powerful business intelligence applications. With its scalability, load balancing capabilities, caching mechanisms, and robust security features, it provides an optimal environment for users to access their data-driven insights.

The architecture of the Qlik Web Server involves components like the Proxy Service, Repository Service, and Engine Service working together seamlessly to deliver a seamless user experience. By leveraging this web server technology, organizations can harness the full potential of Qlik Sense for their data analytics needs.

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