TRAZO

What the game keeps, what it sends, and how to switch the statistics off. Updated 9 November 2026.

On your device

The game keeps its settings, your best times and ghosts, your place in a cup and the nickname you choose in your browser's own storage, so they are there next time. None of it is sent anywhere, except as described below.

For El Trazo del Día, the daily shape, it keeps each day's result on your device (the time, the slips, how much was painted and your grid) to show your streak and to share. It never leaves your device unless you post it or share it.

It also keeps a log of your last 500 runs: when each was flown, the figure, the time, how much was painted, the breaks and crashes, the plane and the handling settings. It is there to help work on the game, not as a feature you will see, and it never leaves your device. Switching the statistics off (below) stops it too.

If you add the game to your home screen, it also keeps a copy of its own files (its code, models, sounds and figures) so it opens without a connection. In a browser tab it does not.

All of this is kept until you clear the site's data in your browser, or remove the game from your home screen, which removes it.

Times you post

When you press Post at the finish, your nickname, the time, the plane and how you flew (keyboard, touch or controller) go on a public leaderboard or challenge board. When you share a challenge link, your time goes on that challenge's board under your nickname. When you post El Trazo del Día's flight, your nickname, the time, the slips, the plane and how you flew go on that day's public board. Nothing is posted unless you do one of these.

A challenge link has the time, the nickname and a ghost of the run in the link itself, so whoever you send it to can see them.

A run flown in pilot mode, the turn-based mode for AI agents, is posted to the AI board only when the agent posts it: with the model's name, the agent's and the nickname given, if any, and every command the run flew, so anyone can watch it back. Nothing else from the device goes with it.

Racing a friend

The name you type is shown to the other player. The race room keeps it only while the race runs, and forgets it when the room closes.

Anonymous play statistics

To see how the game is played and make it better, it sends a few anonymous facts about each visit: that it opened, which way you chose for climbing, when a run starts and ends (with the time, how much was painted, breaks, crashes and any medal), the first metre painted and the first rope, sharing, posting a time, opening a challenge link, races and the split screen, a part of the game failing to load, and where in the game the page was closed. If the game's own code goes wrong, it sends the error: its message and where in the code it happened, so it can be fixed.

Each comes with the figure and stretch, the plane, how it was flown, whether the screen is a touch screen, whether the game was opened from the home screen, the game's version, the country your connection comes from, the site that linked to the game, and whether this browser has played before. That last one is worked out by looking at whether the game has already saved best times or settings here, and only a yes or no is sent.

There is no identifier, no nickname and no cookie. Nothing is stored on your device for the statistics, apart from your choice if you switch them off. Your IP address is used only to limit how often a browser can send, and is never kept. The statistics are held by Cloudflare, who host the game, for three months.

To switch them off, use the button below, or pause the game (Esc, or the pause button on a phone) and press 9, or tap "anonymous statistics". The choice is remembered on this device until you clear the site's data, and switching off stops the run log as well.

Who

Trazo is made by Ally Burns. Questions about any of this, or a time you want taken off a board: get in touch on allyburns.com.