About Bursta
Bursta is a free interval and breathing timer that runs in the browser. This page says who makes it, where the numbers on its pages come from, what it records about a visit, and how to tell us when something is wrong.
An independent timer with nothing to sell
Bursta is made independently. It is not affiliated with any boxing commission, sports federation, gym or breathing school, including the ones whose rules its pages cite. CrossFit, Cindy, Fran and Chelsea are trademarks or workouts of CrossFit, LLC. Bursta is not affiliated with or endorsed by CrossFit.
The site carries no advertising, sells nothing and has no paid tier. It began as an Android app. That app is built but not yet published, and an iPhone version comes later. The files that keep time here are the app’s own: a test fails the day the two stop matching byte for byte.
Every number says whether a rule fixed it or we did
Each timer page opens on a shape with numbers in it: a round, a rest, a count of breaths. Where a rulebook, a statute or a published method fixed a number, the page names the source and links to it. Where a default is our own choice, the page says so in those words.
The boxing page is the example. The three minute round and the one minute rest come from the ABC Unified Rules of Boxing. Nevada’s statute, NRS 467.150, caps a contest at twelve rounds of no more than three minutes. The page cites both. Opening on all twelve is our choice, and the page says that too.
The breathing pages describe a counting pattern and where it was published. Nothing on this site is medical advice.
When a number is wrong
Rules change, and a page can be wrong. If a number disagrees with the rule it cites, or a source has moved, write with the page and the source you are reading. A correction goes onto the page together with the source that supports it.
What the site records
There is no account and no cookie. Vercel Web Analytics, served from this domain, counts page views with the page, the site you came from, the country and the kind of device. It tells visits apart by a hash of the request, which it discards after 24 hours. The site also records four events, each at most once per page load: when you press Start, when a workout you started reaches its end, when you first change a number in the editor, and when you first pick a palette. Each carries only the name of the page, and the palette event also carries the palette you picked. That is how we learn which timers are used and finished.
When a script on a page fails in your browser, the site records that too, at most three times per page load: the name of the page and the first 80 characters of the error message, with any web address query and any long number taken out. That is how we learn that a timer is broken in a browser we did not test.
The numbers you set on a timer are saved in your own browser. A link you share carries them in its address, so they reach whoever opens it and the server that answers the link.
The Android app has its own privacy policy.
Contact
A wrong number, a source that moved, a format you looked for and did not find, or a timer that did something it should not: one address for all of it.