To create a link to another website, use the anchor element with the
<a href="http://example.com/">External link</a>
To see what this element looks like in the browser, click the link in the Demo section below.
The process of creating a link to an external website is similar to creating a link to one of your own pages. The difference is that links to external websites should use absolute URLs (meaning they should include the http:// or https:// protocols with the URL).
The Anchor element on MDN