Copy: another site has its own copy of your picture. Hotlinked: another site shows the picture straight from your website, using your bandwidth. Likely and possible copies are close to your picture, or cropped or edited. Not confirmed: a search service reported it, but we couldn't download the file to compare.
Hosted in is the country of the server the copy is on and the company that runs its network. Some sites sit behind a service such as Cloudflare, which hides the real server: the report says so when it can tell. Domain is the country the site's address belongs to, such as .de or .co.uk.
What it can't check: pictures on your site behind a paywall, sign-in or members' area, or drawn by scripts or set as backgrounds, weren't searched. Copies elsewhere behind a paywall or sign-in, such as private groups, most social media posts and paid archives, can't be found, and a copy posted recently may not be indexed yet. See the limits.
To ask a site to remove a copy, see our FAQ or email support@pixelsentinel.net.