Skip links are a useful tool for sighted keyboard-only users and screen reader users to move past common, repeated top matter (like headers and navigation) and get right to the main content of the page.
See https://webaim.org/techniques/skipnav/ for more info, and a good live example — the skip link will become visible as the first item when you begin tabbing through the page.
It doesn't necessarily have to be the very first item, but it should be one of the first. For example, the skip link might appear after the main "home" link in the top left, but before the rest of the top matter.
Skip links are a useful tool for sighted keyboard-only users and screen reader users to move past common, repeated top matter (like headers and navigation) and get right to the main content of the page.
See https://webaim.org/techniques/skipnav/ for more info, and a good live example — the skip link will become visible as the first item when you begin tabbing through the page.
It doesn't necessarily have to be the very first item, but it should be one of the first. For example, the skip link might appear after the main "home" link in the top left, but before the rest of the top matter.