Make links open in the same window, NOT a separate window/tab (even for external links). This is easier to navigate with a screen reader and a mobile device.
If a link will take the user away from our website, mention that fact in the contextual sentence with the link (or in parentheses afterward). Ex: For more information, check out University of California’s bed bug factsheet.
Instead of hyperlinking a heading, hyperlink text below the heading.