All Turtl Docs are zoomable (press CTRL/CMD and + or -) in accordance with ADA, and they also have an accessible version that is compliant with ADA and WCAG 2.1 AA regulations.
The accessible version of your content is mainly used by screen readers. When a screen reader arrives on a Turtl Doc, the first thing it reads is: "Press enter to view the accessible version of this page". On pressing enter, the browser redirects to the accessible version, which the screen reader can navigate. You can view this accessible version by adding "?accessible" to the end of the URL.
So team.turtl.co/story/content-psychology-101 becomes team.turtl.co/story/content-psychology-101?accessible.