Contact the bench

The chronometer stores nothing on our side, so a session cannot be looked up after the fact. Whatever is in your message is the entire evidence we have, which makes the specifics worth more here than on most contact forms.

Five details resolve almost every report:

• The browser and its version, and whether the same thing happens in a second browser.
• The device — a phone, a trackpad and a mouse each behave differently, and the tool reports pointer events rather than mouse events for that reason.
• The interval you ran, since a one-second reading and a sixty-second reading are different measurements and go wrong in different ways.
• The reading you got and the reading you expected, both as numbers.
• Whether an extension is active. Anything that intercepts clicks — an auto-clicker, a macro tool, a privacy extension that blocks timing APIs — changes what the page sees.

We cannot recover a result. Personal bests live in your own browser's storage and never reach a server, so if you cleared them or switched device, they are gone and we have no copy. The same applies to the daily board: it keeps a rate and a date with no identifier attached, so there is no way to find or remove an individual entry.

We also cannot certify a record. Every figure on this site is measured by the visitor's own browser, and a number produced that way is not evidence of anything beyond that browser. If you are chasing a public record, the submission sites that host them are the place for it.

Measurement bugs, a browser or device that reads obviously wrong, an interval or a tool you want added, a factual error in an article, and questions about how a figure is calculated. All of those are worth sending.

Requests to add a backlink, guest posts, and offers to buy advertising are not. There is no advertising on this site and no plan to add any.