Rocket Validator looks for accesibility violations on your pages using the axe-core accessibility engine, hosted on our own servers and integrated into our web crawler. You don't need to buy an additional license, everything's already included in your Pro account at Rocket Validator.
WCAG: Best Practice: The skip-link target should exist and be focusable
The page must have a link at the top before the navigation that allows users to skip lengthy navigation and proceed to a page's main content to save time.
Screen readers announce content sequentially as it appears in the HTML file. What this means for users of assistive technology is that the content at the top of the page, typically including the entire navigation, is read out to the user before reaching any of the main content. Since content at the top of the page can often be very lengthy, it can be time-consuming to listen to or tab through all of it when the user is only interested in the main content. Including a skip link in an HTML page is beneficial to blind users, users with low vision, and mouse-only users.