Announce Links That Open in a New Tab
Adds hidden "(opens in a new tab)" text and a small icon to links in post content that open a new window, so screen reader and keyboard users are not surprised.
Snippet Library
Accessibility snippets for WordPress
Snippets that make WordPress easier for everyone to use: skip links, focus styles, better link text and fixes for common accessibility issues. For site owners who want a site that works with keyboards and screen readers.