head内に書くべきタグ
.html
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<meta name="format-detection" content="email=no,telephone=no,address=no">
<meta name="robots" content="max-image-preview:large">
<title></title>
<meta name="description" content="">
<!-- ogp -->
<meta property="og:url" content="https://www.■■■■.■■■">
<meta property="og:type" content="website">
<meta property="og:title" content="">
<meta property="og:description" content="">
<meta property="og:site_name" content="">
<meta property="og:image" content="https://www.■■■■.■■■/static/image/■■■.png">
<meta property="og:locale" content="ja_JP">
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="">
<meta name="twitter:description" content="">
<meta name="twitter:site" content="@Twitterユーザー名">
<!-- favicon/webclipicon -->
<link rel="icon" href="画像URL" sizes="16x16" type="image/png">
<link rel="icon" href="画像URL" sizes="32x32" type="image/png">
<link rel="icon" href="画像URL" sizes="48x48" type="image/png">
<link rel="icon" href="画像URL" sizes="62x62" type="image/png">
<link rel="shortcut icon" href="画像URL（.ico）" type="image/x-icon">
<link rel="apple-touch-icon-precomposed" href="画像のURL">
<meta name="msapplication-TileImage" content="画像のURL">
<link rel="stylesheet" href="CSSファイルのURL">
<script src="JavaScriptファイルのURL"></script>
</head>
詳しい内容説明に関しては下記参考文献を読んでください
https://saruwakakun.com/html-css/basic/head
https://moshashugyo.com/media/html-head
https://developer.mozilla.org/ja/docs/Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML