Last reviewed: August 6, 2026
We believe the internet should be available and accessible to anyone, and we are committed to providing a website that as many people as possible can use, regardless of ability.
We aim to conform to the World Wide Web Consortium’s Web Content Accessibility Guidelines 2.1 (WCAG 2.1) at the AA level. Those guidelines explain how to make web content accessible to people with a wide range of disabilities, including blindness and low vision, motor impairments, and cognitive disabilities.
Accessibility here is built into the pages themselves rather than added by an overlay tool. In practice that means:
There is a green button with an accessibility symbol in the bottom left corner of every page. It opens a short list of settings you can turn on: larger text, higher contrast, reduced motion, and underlined links. Your choice is remembered on that device as you move around the site, and you can switch everything off again with one button.
To be clear about what that panel is and is not: it adjusts how this site presents itself to you. It does not alter the underlying page, and it is not a compliance tool. The accessibility of this site comes from how the pages are built, described above, not from a widget layered on top. We chose to build these preferences ourselves rather than install a third-party accessibility overlay, because overlays have a poor record of actually helping people who use assistive technology, and in some cases interfere with it.
The settings are stored in your own browser and are never sent to us, so we cannot see what you have chosen.
We would rather tell you what is imperfect than claim the site is flawless.
We test against current versions of Chrome, Safari, Firefox and Edge, and with the screen readers most commonly paired with them, including VoiceOver on macOS and iOS and NVDA on Windows.
If you hit a barrier on this site, we want to hear about it, and we will treat it as a fault to fix rather than a request to consider. Please tell us the page you were on and what happened.
We aim to respond within one business day.