> ## Documentation Index
> Fetch the complete documentation index at: https://docs-xcor.paloaltonetworks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Data types

> Learn how to explore telemetry data in Cortex XCOR.

To help you understand your network's health, and to troubleshoot issues that occur,
Palo Alto Networks Cortex XCOR includes tools and features to provide actionable
insights into each type of telemetry data you ingest.

## Metrics

Aggregate measurements from your services and apps, such as a fixed number of
periodic observations that record the count of requests handled over the span of a
minute. Cortex XCOR adds, drops, and aggregates those statistics for use
in dashboards, traces, and alerts.

<Card title="Metrics" color="#28a561" icon="chart-line" href="/overview/types/metrics" horizontal />

## Logs

Data directly generated by apps and services, which you can ingest with Cortex XCOR to
investigate issues with your systems and monitor their health. Use Logs
Explorer to search log data so your teams have more detailed context to help identify
and fix the root cause of issues.

<Card title="Logs" color="#FA582D" icon="file-text" href="/overview/types/logs" horizontal />

## Traces

Mapping and analyzing requests as they flow through a distributed system. Traces
include *spans* that an app emits, and connects related spans together. Each span
represents an operation or unit of work.

<Card title="Traces" color="#a63923" icon="route" href="/overview/types/traces" horizontal />

## Change events

Data elements that describe real world changes or events that could have affected
your environment. Events let you answer questions like *When did a particular service
deploy last?*

<Card title="Change events" color="#ff9d1c" icon="calendar" href="/overview/types/change-events" horizontal />


## Related topics

- [QueryLogsRange](/tooling/api-info/data_definition/operations/QueryLogsRange.md)
- [Create links to related information](/investigate/querying/create-links.md)
- [Search and query telemetry data](/investigate/querying.md)
- [Rollup rules](/control/shaping/shape-metrics/rules/rollup.md)
- [Metric types](/control/shaping/shape-metrics/types.md)


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