Hi @tschwarz-1
Thanks for asking. For self-hosted video, Presto Player doesn’t contact any external host, the video file and all player JS/CSS (including HLS.js) are served directly from your own WordPress install. The only external connections are the YouTube/Vimeo embed blocks, and only if you use those instead of self-hosted video.
On data collection: nothing is collected from visitors on the frontend, and playing a self-hosted video triggers no data collection at all. In wp-admin, there’s an optional usage-tracking opt-in (off by default, only activates if you click “Happy to help!”) and an optional NPS survey, both purely site-level telemetry with nothing tied to video playback.
Note: Presto Player Pro’s analytics feature does track per-visitor watch data locally in your own database, but that’s Pro-only and not present in the free plugin.
Let us know if you have any other questions!