Privacy
The priority date checker
A priority date is personal information, so the checker is built so there is nothing to collect. The comparison runs in the browser against data already contained in the page. No date, category, or country is transmitted, logged, or stored, and the site has no server able to receive one.
What the site collects
Nothing. There are no accounts, no login, no comments, no analytics, and no form anywhere that accepts personal information.
Hosting
The site is served as static files. The hosting provider may keep standard request logs such as IP address and requested path in order to deliver the site and defend it against abuse. That data is handled by the provider rather than collected here.