> For the complete documentation index, see [llms.txt](https://docs.thousandeyes.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.thousandeyes.com/product-documentation/end-user-monitoring.md).

# Endpoint Experience

## Related Video

This video explains which Endpoint test type to use for each kind of user problem.

{% embed url="<https://thousandeyes.wistia.com/medias/o32280ctsd>" %}

As applications now run in the cloud and workers are more distributed, you can use ThousandEyes end-user monitoring to gain visibility into each employee's experience of SaaS and internally hosted applications, as well as underlying wireless LAN, WAN, Internet connectivity and system health.

## End-User Monitoring with Endpoint Agents

The Endpoint Agent is a lightweight service installed on an end user's laptop or desktop that monitors applications through a browser plug-in. Because Endpoint Agent goes where the user goes, you can use it to troubleshoot performance issues related to Wi-Fi, bandwidth capacity, ISP routing, VPN gateways, and SaaS availability.

## Autonomous System (AS) Metadata

This product includes autonomous system (AS) names and related metadata from datasets maintained by internet registries and other publicly available resources. For a complete list of the source data sets used in this product, reference [Autonomous System (AS) Data Sources](https://docs.thousandeyes.com/product-documentation/tests/bgp-tests#autonomous-system-as-data-sources).