Linking 2 website in HTML code is done with the anchor tag. For a link to another web page, the “A” is followed by “href”.
<a href="url">link text</a>
Or
<a href="https://examplesite.com" target="_blank" rel="noopener noreferrer">
Example Link
</a>
Link 2 or multiple websites together Example code
HTML example code: HTML Hyperlinks click on a link and jump to Website or page.
<html>
<body>
<a href="https://www.eyehunts.com/">Visit Eyehunts.com!</a>
</body>
</html>
Output:

Button as a Link to connect another website
<button onclick="abc.com'">HTML Tutorial</button>
Do comment if you have any doubts and suggestions on this HTML code.
Note: The All HTML Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version