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How to use HTML meta tags

php中世界最好的语言Original: 2018-01-17 09:37:421646browse

This time I will show you how to use HTML meta tags and what notesare when using HTML meta tags. The following is a practical case, let’s take a look.

Preface

meta is an auxiliary tag in the head area of html language. Maybe you think this code is dispensable. In fact, if you can make good use of meta tags, it will bring you unexpected effects. The functions of meta tags are: search engine optimization (SEO), defining the language used on the page, automatically refreshing and pointing to new pages, and realizing dynamics during web page conversion. Effect, control page buffering, web page rating and evaluation, control the window for web page display, etc.!

html meta summary

Composition of meta tag: meta tag has two attributes, they are http-equiv attribute and name attribute, different attributes are Different parameter values, these different parameter values realize different web page functions.

<!DOCTYPE html> <!-- 使用 HTML5 doctype，不区分大小写 -->
<html lang="zh-cmn-Hans"> <!-- 更加标准的 lang 属性写法 http://zhi.hu/XyIa -->
<head>
    <!-- 声明文档使用的字符编码 -->
    <meta charset=&#39;utf-8&#39;>
    <!-- 优先使用 IE 最新版本和 Chrome -->
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
    <!-- 页面描述 -->
    <meta name="description" content="不超过150个字符"/>
    <!-- 页面关键词 -->
    <meta name="keywords" content=""/>
    <!-- 网页作者 -->
    <meta name="author" content="name, email@gmail.com"/>
    <!-- 搜索引擎抓取 -->
    <meta name="robots" content="index,follow"/>
    <!-- 为移动设备添加 viewport -->
    <meta name="viewport" content="initial-scale=1, maximum-scale=3, minimum-scale=1, user-scalable=no">
    <!-- `width=device-width` 会导致 iPhone 5 添加到主屏后以 WebApp 全屏模式打开页面时出现黑边 http://bigc.at/ios-webapp-viewport-meta.orz -->
  
    <!-- iOS 设备 begin -->
    <meta name="apple-mobile-web-app-title" content="标题">
    <!-- 添加到主屏后的标题（iOS 6 新增） -->
    <meta name="apple-mobile-web-app-capable" content="yes"/>
    <!-- 是否启用 WebApp 全屏模式，删除苹果默认的工具栏和菜单栏 -->
  
    <meta name="apple-itunes-app" content="app-id=myAppStoreID, affiliate-data=myAffiliateData, app-argument=myURL">
    <!-- 添加智能 App 广告条 Smart App Banner（iOS 6+ Safari） -->
    <meta name="apple-mobile-web-app-status-bar-style" content="black"/>
    <!-- 设置苹果工具栏颜色 -->
    <meta name="format-detection" content="telphone=no, email=no"/>
    <!-- 忽略页面中的数字识别为电话，忽略email识别 -->
    <!-- 启用360浏览器的极速模式(webkit) -->
    <meta name="renderer" content="webkit">
    <!-- 避免IE使用兼容模式 -->
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <!-- 不让百度转码 -->
    <meta http-equiv="Cache-Control" content="no-siteapp" />
    <!-- 针对手持设备优化，主要是针对一些老的不识别viewport的浏览器，比如黑莓 -->
    <meta name="HandheldFriendly" content="true">
    <!-- 微软的老式浏览器 -->
    <meta name="MobileOptimized" content="320">
    <!-- uc强制竖屏 -->
    <meta name="screen-orientation" content="portrait">
    <!-- QQ强制竖屏 -->
    <meta name="x5-orientation" content="portrait">
    <!-- UC强制全屏 -->
    <meta name="full-screen" content="yes">
    <!-- QQ强制全屏 -->
    <meta name="x5-fullscreen" content="true">
    <!-- UC应用模式 -->
    <meta name="browsermode" content="application">
    <!-- QQ应用模式 -->
    <meta name="x5-page-mode" content="app">
    <!-- windows phone 点击无高光 -->
    <meta name="msapplication-tap-highlight" content="no">
    <!-- iOS 图标 begin -->
    <link rel="apple-touch-icon-precomposed" href="/apple-touch-icon-57x57-precomposed.png"/>
    <!-- iPhone 和 iTouch，默认 57x57 像素，必须有 -->
    <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/apple-touch-icon-114x114-precomposed.png"/>
    <!-- Retina iPhone 和 Retina iTouch，114x114 像素，可以没有，但推荐有 -->
    <link rel="apple-touch-icon-precomposed" sizes="144x144" href="/apple-touch-icon-144x144-precomposed.png"/>
    <!-- Retina iPad，144x144 像素，可以没有，但推荐有 -->
    <!-- iOS 图标 end -->
  
    <!-- iOS 启动画面 begin -->
    <link rel="apple-touch-startup-image" sizes="768x1004" href="/splash-screen-768x1004.png"/>
    <!-- iPad 竖屏 768 x 1004（标准分辨率） -->
    <link rel="apple-touch-startup-image" sizes="1536x2008" href="/splash-screen-1536x2008.png"/>
    <!-- iPad 竖屏 1536x2008（Retina） -->
    <link rel="apple-touch-startup-image" sizes="1024x748" href="/Default-Portrait-1024x748.png"/>
    <!-- iPad 横屏 1024x748（标准分辨率） -->
    <link rel="apple-touch-startup-image" sizes="2048x1496" href="/splash-screen-2048x1496.png"/>
    <!-- iPad 横屏 2048x1496（Retina） -->
  
    <link rel="apple-touch-startup-image" href="/splash-screen-320x480.png"/>
    <!-- iPhone/iPod Touch 竖屏 320x480 (标准分辨率) -->
    <link rel="apple-touch-startup-image" sizes="640x960" href="/splash-screen-640x960.png"/>
    <!-- iPhone/iPod Touch 竖屏 640x960 (Retina) -->
    <link rel="apple-touch-startup-image" sizes="640x1136" href="/splash-screen-640x1136.png"/>
    <!-- iPhone 5/iPod Touch 5 竖屏 640x1136 (Retina) -->
    <!-- iOS 启动画面 end -->
  
    <!-- iOS 设备 end -->
    <meta name="msapplication-TileColor" content="#000"/>
    <!-- Windows 8 磁贴颜色 -->
    <meta name="msapplication-TileImage" content="icon.png"/>
    <!-- Windows 8 磁贴图标 -->
  
    <link rel="alternate" type="application/rss+xml" title="RSS" href="/rss.xml"/>
    <!-- 添加 RSS 订阅 -->
    <link rel="shortcut icon" type="image/ico" href="/favicon.ico"/>
    <!-- 添加 favicon icon -->
 
    <!-- sns 社交标签 begin -->
    <!-- 参考微博API -->
    <meta property="og:type" content="类型" />
    <meta property="og:url" content="URL地址" />
    <meta property="og:title" content="标题" />
    <meta property="og:image" content="图片" />
    <meta property="og:description" content="描述" />
    <!-- sns 社交标签 end -->
  
    <title>标题</title>
</head>

The above gives some commonly used meta attributes, and the following gives an understanding of the use of meta.

meta is an auxiliary tag in the head area of html language. Maybe you think this code is dispensable. In fact, if you can make good use of meta tags, it will bring you unexpected effects. The functions of meta tags are: search engine optimization (seo), defining the language used on the page, automatically refreshing and pointing to new pages, and realizing the dynamics of web page conversion. Effect, control page buffering, web page rating and evaluation, control the window for web page display, etc.!

Composition of meta tag: meta tag has two attributes, they are http-equiv attribute and name attribute. Different attributes have different parameter values. These different parameter values realize different web pages. Function.

1. Name attribute

The name attribute is mainly used to describe web pages, and the corresponding attribute value is content. The content in content is mainly used by search engine robots to find information and classify information. .

The syntax format of the name attribute of the meta tag is:

<meta name="参数"content="具体的参数值">。

The name attribute mainly has the following parameters:

A, Keywords (keywords)

Description: keywords are used to tell search engines what the keywords of your web page are.

Example:

<meta name="keywords"content="meta总结,html meta,meta属性,meta跳转">

B. description (website content description)

Description: description is used to tell search engines the main content of your website.

Example:

<meta name="description"content="haorooms博客,html的meta总结，meta是html语言head区的一个辅助性标签。">

C, robots (robot guide)

Description: robots are used to tell the search robot which pages need to be indexed and which pages do not need to be indexed.

The parameters of content include all, none, index, noindex, follow, and nofollow. The default is all.

<meta name="robots"content="none">

The specific parameters are as follows:

The information parameter is all: the file will be retrieved, and the links on the page can be queried;

Information parameter Is none: the file will not be retrieved, and the links on the page cannot be queried;

The information parameter is index: the file will be retrieved;

The information parameter is follow: the link on the page Can be queried;

The information parameter is noindex: the file will not be retrieved, but the links on the page can be queried;

The information parameter is nofollow: the file will be retrieved, but the links on the page The link cannot be queried;

I believe you have mastered the method after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website!

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