html meta tags
<head lang="en">
<meta http-equiv="content-language" content="en">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="keywords" content="website, blog, foo, bar">
<meta name="author" content="John Doe">
<meta name="publisher" content="John Doe">
<meta name="copyright" content="John Doe">
<meta name="description" content="This short description describes my website.">
<meta name="page-topic" content="Media">
<meta name="page-type" content="Blogging">
<meta name="audience" content="Everyone">
<meta name="robots" content="index, follow">
<title>My website title</title>
</head>