---
title: Meta tags
category: HTML
---

```html
<meta charset='utf-8'>

<!-- title -->
<title>...</title>
<meta property='og:title'  content='...'>
<meta name='twitter:title' content='...'>

<!-- url -->
<meta property='og:url'  content='http://...'>
<meta name='twitter:url' content='http://...'>
<link rel='canonical'       href='http://...'>

<!-- desc -->
<meta name='description'         content='...'>
<meta property='og:description'  content='...'>
<meta name='twitter:description' content='...'>

<!-- image -->
<meta property="og:image"  content="http://...">
<meta name="twitter:image" content="http://...">

<!-- ua -->
<meta http-equiv='X-UA-Compatible' content='IE=edge,chrome=1'>

<!-- viewport -->
<meta name='viewport' content='width=device-width'>
<meta name='viewport' content='width=1024'>
```

### More opengraph

```html
<meta property="og:site_name" content="...">
<meta property="og:type" content="website">

<meta property="fb:app_id" content="...">
<meta property="fb:admins" content="UID1,UID2"> <!-- unless there's app_id -->

<meta property="og:audio" content="http://.../theme.mp3">
<meta property="og:video" content="http://.../trailer.swf">
```

### Opengraph for articles

```html
article:published_time
article:modified_time
article:expiration_time
article:author
article:section
article:tag
```

### Apple-only

```html
<meta name='format-detection' content='telephone=no'>
```

## Progressive web apps

### Add to homescreen

```html
<meta name='mobile-web-app-capable' content='yes'>
<meta name='apple-mobile-web-app-capable' content='yes'>
<meta name='apple-mobile-web-app-status-bar-style' content='black'> <!-- black | black-translucent | default -->
```

### [Theme color](https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android)

```html
<meta name='theme-color' content='#ff00ff'>
```

### [Manifest](https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/)

```html
<link rel='manifest' href='/manifest.json'>
```

### [Icons](https://developers.google.com/web/fundamentals/design-and-ui/browser-customization/)

```html
<!-- Minimal -->
<link rel='icon' type='image/png' href='favicon@32.png'>
<link rel='icon' sizes='192x192' href='icon@192.png'>
<link rel='apple-touch-icon' href='icon@152.png'>
<meta name='msapplication-square310x310logo' content='icon@310.png'>

<!-- Apple -->
<link rel='apple-touch-icon' href='touch-icon-iphone.png'>
<link rel='apple-touch-icon' sizes='76x76' href='touch-icon-ipad.png'>
<link rel='apple-touch-icon' sizes='120x120' href='touch-icon-iphone-retina.png'>
<link rel='apple-touch-icon' sizes='152x152' href='touch-icon-ipad-retina.png'>

<!-- Microsoft -->
<meta name='msapplication-square70x70logo' content='icon_smalltile.png'>
<meta name='msapplication-square150x150logo' content='icon_mediumtile.png'>
<meta name='msapplication-wide310x150logo' content='icon_widetile.png'>
```

Chrome on Android recommends [192x192](https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android).

### Reference

 * <https://dev.twitter.com/docs/cards>
 * <https://developers.facebook.com/docs/opengraphprotocol/#types>