A header is the top area of a webpage or a section within it. It often contains a name, logo, or navigation that helps people know where they are.
The top of a website may show its logo and links to important pages. A news article can also have its own smaller header containing the title and date.
Keep the most useful identifying information easy to find. A page can have more than one header for different sections, so the surrounding content should make each one's purpose clear.