To disable auto Google Translate in Chrome for your website, you can add the notranslate attribute to the HTML element, like this:
<!DOCTYPE html>
<html lang="en" notranslate>
<head>
<meta charset="UTF-8">
<title>My Website Title</title>
<!-- other meta tags and stylesheets -->
</head>
<body>
<!-- website content -->
</body>
</html>
By adding the notranslate attribute to the <html> element, you are telling Chrome not to offer translation of your website's content. This should prevent the automatic Google Translate prompt from appearing.
Note that users can still choose to translate the page manually using the Google Translate extension or by right-clicking on the page and selecting "Translate to [language]".