What it means
On a one-page website, links may jump to sections, open related pages or lead to a primary action. The header also usually provides the site’s identity. A concise set of descriptive labels can make a long page easier to understand before someone starts scrolling.
Use it in practice
Choose destinations based on visitor needs and make the current context clear. Preserve keyboard access and a usable menu at smaller widths.
Watch out for
Do not turn every section heading into a navigation item. A fixed header should not cover the content targeted by anchor links.