Splunk is a data collection, analysis, and visualisation tool. Companies use this tool to collect and monitor a variety of data types, including Application Metrics, Application, Transactional Data, Customer Data, Network Data, Configuration Settings, csv, Security data, and more! You may enroll on Splunk Training

It can collect all of the data types mentioned above and more, then process that data based on the conditions set by the user, and finally visualise that data for further presentation and a better understanding of the data collected.

Splunk is a company that produces a variety of products, including:

Splunk Enterprise - This is the one I mentioned earlier.
IT operations with Splunk
Splunk Safety
DevOps with Splunk
Here are some of the advantages of using Splunk:

Monitoring Performance in Real Time
Security & Alerting Logging Tool Stack
Visualizations and dashboards
Analytics of Data
Very simple to use
Excellent customer service
ML algorithm