What metrics are collected by the Web Probe?

The Web Probe collects various key performance metrics that are vital for assessing the overall user experience and the performance of web applications. The metrics mentioned in the correct answer encompass crucial aspects of web performance:

• Page Fetch Time measures the total time taken to retrieve a webpage, which is essential to understand the efficiency of content delivery to users.

• DNS Time refers to the duration it takes to resolve a domain name into an IP address, which is a critical step before any data can be fetched from the server.

• Server Response Time gauges how quickly the server processes the request and begins sending data back to the client, providing insights into the server's responsiveness.

• Availability indicates whether a web application or service is up and running, which is fundamental in determining if users can access the services without interruptions.

These metrics collectively give a detailed overview of how well a web service is performing from the user's perspective. Monitoring these metrics helps organizations identify bottlenecks, optimize performance, and ensure a smooth user experience.