Our accessibility goal is WCAG 2.2 level AA. That is a goal, not a claim. The site has not had a formal audit, so we cannot say it meets that level, and there may be problems we have not found.
What the site does today
- Keyboard use. The tools use plain links, buttons, text boxes and menus, so you can reach them with the keyboard. Main pages start with a Skip to content link, and a visible outline shows where you are.
- Labels. Every box and menu has a label, even where the screen shows only a column heading. Each ⋯ button says which row it belongs to. Errors appear in plain words next to the row or box.
- Status announcements. Results are announced as status messages shortly after you stop typing. So are short messages such as Link copied.
- Dark mode. The site follows your device setting, and the button in the header switches between light and dark. Your choice is kept in this browser.
- Zoom. Zoom is allowed. We do not block it on any page.
- Motion. If your device asks for reduced motion, we turn off animation.
- Touch. On touch screens, text boxes, menus and buttons grow to at least 44 pixels tall.
- Tables. Data tables have header cells, and the tables inside the tools have captions.
Known limits
- The site has not had a formal audit.
- The tools need JavaScript. With it turned off, you can read the pages, but the calculators will not work.
- We have not tested every mix of browser and screen reader.
Report a problem
If something does not work for you, please tell us through our contact page. Say which page you were on, what you tried to do, and what browser or assistive technology you use. Please do not send names or student data.