Screenshot in light style of a Plausible app with an open dialog: "Set a Custom Domain. If you’re self-hosting Plausible or using an instance other than plausible.io, set the domain name here." There is an entry with a dim "https://" preceeding it, and cancel and save buttons.
https://storage.googleapis.com/hci-social-storage/media_attachments/files/109/526/160/972/906/471/original/b389359e68624b4a.png