This page explains how this test site handles the little data it collects. The site exists to test publishing and technical fixes, and it is not meant for public visitors.
No account is needed to read the pages, and no contact forms are active. Server logs keep IP addresses for a short period to protect the site against abuse, after which they are deleted automatically.
Cookies are limited to what WordPress itself needs, such as remembering that an administrator is logged in. No advertising or tracking cookies are set for visitors.
Questions about this test site can be sent to the team that runs it. Because no personal data is processed beyond the server logs, there is nothing to export or delete on request.