If you want to check who and when visited your site, you need the access log. This log are typically stored in access_log file, with a history of all visitors.
Usually you will be able to see:
- Time and ante;
- HTTP request type;
- Answer code;
- Requested URL;
- Information about client's browser.
You can find the access log in the hosting control panel, section "System info and files" ➡️ "Site summary / Statistics / Logs". In the section will be a list of all domains and pallets on the hosting, and next to each of them will be a column "logs". Click on "usage logs".