Every miss has a reason

With "Save to my history" on, each replay and its map are stored on our server so you can open them again, and each saved play gets its own link, the address of its report. Anyone with the link can open the report and its playback, with the player name saved in the replay, but never your replay file; the link can't be guessed, so no one finds it without being sent it. Once you've added a replay, a cookie remembers that (nothing else), so the example play stops showing. Deleting a saved play in History removes its replay, report and link, though apps that showed the link may keep its preview (the song, accuracy and misses, and a picture of the map's background with part of your cursor path). Our server's database, saved plays included, is also copied each night, encrypted, to Backblaze in case our server fails; each copy is deleted after 30 days, so a deleted play is gone from them within a month. Without signing in, your saved plays belong to this browser (a cookie) and are deleted once it hasn't visited for a year; signing in moves them and their links to your account, except a replay the account already has, which keeps the account's link. Otherwise no replay or report is uploaded: to find a map only its ID (an MD5 hash) is sent, and to show its cover or play its song preview only its map set number (our server gets them from osu! and keeps no song audio). To import a play from osu!, our server fetches its replay from osu! for you; it's kept only if you save it. Once you sign in, we keep your osu! or Discord user number and name to know it's you; the site's owner can see the list of accounts, with when each joined and last signed in and how many plays it saved, and how many guests there are. Once you've saved a play or signed in, we count which pages you open and which buttons you press, and when a replay or its map couldn't be used, but never what's in a replay, map or score, and keep the counts six months; turn on Global Privacy Control in your browser to be left out.