Meta tag details (meta tag function)///////////////////////////turn

Meta tag details (meta tag function) Many people ignore the powerful effect of HTML tag meta, a good meta tag design can greatly improve the likelihood of your personal site being searched, interested, who am I to re-recognize the META tag it?

Your personal website even if do more wonderful, in the "vast sea" of cyberspace, also such as skiff not easy for people to find, how to promote personal website, people first think of the method no outside the following several:

Sign in to your own personal site in a search engine

Join a link to your personal site on a well-known website

Post a message in the forum to advertise your personal site

Many people ignore the powerful effect of HTML tag meta, a good meta tag design can greatly improve the likelihood of your personal site being searched, interested, who I will re-recognize the META tag it!

The META tag is an accessible tag in the head area of the HTML language, which is located between the tag of the header of the HTML document and the title << tag, which provides information that is not visible to the user. Meta tags are often used to define page themes for search engine robots, or to define a cookie on a user's browser, which can be used to identify the author, format the page, annotate the content feed and keywords, and set the page to refresh itself according to the intervals you define. and set the RASC content level, and so on.

Detailed Introduction

Here are some examples and explanations of the markings.

The META tag is divided into two parts: the HTTP header information (HTTP-EQUIV) and the page description information (NAME).

★http-equiv

HTTP-EQUIV is similar to the HTTP header protocol, which responds to the browser with some useful information to help correct and accurately display the content of the Web page. Common types of HTTP-EQUIV are:

1, Content-type and Content-language (the setting of the display character set) transferred from the global net edu24ol.com to the global net edu24ol.com transferred from the global net edu24ol.com

Description: Sets the character set used by the page to indicate that the text used by the home page is already spoken, and the browser will invoke the corresponding character set to display the page content.

Usage: <meta http-equiv= "Content-type" content= "text/html; charset=gb2312 ">

<meta http-equiv= "Content-language" content= "ZH-CN" >

Note: The META tag defines the character set used by the HTML page as GB2132, which is the GB character code. If you replace "charset=gb2312" with "BIG5", the character set used for this page is the traditional Chinese Big5 code. When you browse some foreign sites, ie browser will prompt you to correctly display the page need to download XX language support. This is done by reading the Content-type property of the META tag of the HTML page and knowing which character set to use to display the page. If the corresponding character set is not installed in the system, ie prompts to download. Other languages also correspond to different charset, such as the Japanese character set is "ISO-2022-JP", the Korean is "ks_c_5601".

Content-type content can also be: Text/xml and other document types;

CharSet options: Iso-8859-1 (English), BIG5, UTF-8, Shift-jis, Euc, Koi8-2, Us-ascii, X-mac-roman, Iso-8859-2, X-mac-ce, ISO-2022-JP, X-sjis, X-euc-jp,euc-kr, Iso-2022-kr, gb2312, gb_2312-80, X-EUC-TW, X-cns11643-1,x-cns11643-2 and other character sets The Content of Content-language can also be: EN, FR and other language code.

2, refresh (refreshed) transferred from the global net edu24ol.com to the global net edu24ol.com transferred from the global net edu24ol.com

Description: How long (in seconds) to refresh your Web page, or how long it takes to automatically link pages to other pages.

Usage: <meta http-equiv= "Refresh" content= ">

<meta http-equiv= "Refresh" content= "5; Url=http://www.xia8.net ">

Note: 5 of these are meant to be automatically refreshed to URL URLs after 5 seconds of stay.

3, Expires (the term) transferred from the global net edu24ol.com to the global net edu24ol.com transferred from the global net edu24ol.com

Description: Specifies the expiration time of the page in the cache and must be re-accessed on the server once the page expires.

Usage: <meta http-equiv= "Expires" content= "0" >

<meta http-equiv= "Expires" Content= "Wed, 1997 08:21:57 GMT" >

Note: You must use the time format of GMT, or set directly to 0 (the number indicates how much time expires after).

4, Pragma (Cach mode)

Description: Prevents the browser from accessing the contents of the page from the local machine's cache.

Usage:

Note: pages are not guaranteed to be present in the cache, and each visit refreshes the page. With this setting, visitors will not be able to browse offline.

5. Set-cookie (Cookie setting)

Description: When a browser accesses a page, it is cached and can be read from the cache the next time it is accessed to improve speed. Disable caching when you want visitors to refresh your ad's icon every time, or refresh your counter every time. Usually HTML files do not need to disable caching, for the ASP and other pages, you can use the disable cache, because every time you see the page is dynamically generated on the server, the cache loses meaning. If the page expires, the saved cookie will be deleted.

Usage: <meta http-equiv= "Set-cookie" content= "COOKIEVALUE=XXX; Expires=wednesday,

21-oct-98 16:14:21 GMT; path=/">

Note: The time format of GMT must be used.

6, Window-target (display window settings)

Description: Forces the page to appear on a separate page in the current window.

Usage: <meta http-equiv= "Widow-target" content= "_top" >

Note: This property is used to prevent others from calling your page in the frame. Content options: _blank, _top, _self, _parent.

7, Pics-label (page RSAC rating)

Description: There is a content setting in Internet Options for IE that prevents you from browsing some restricted sites, which are set by the site's throttling level.

Usage:: <meta http-equiv= "Pics-label" contect= "(PICS-1.1 ' http://www.rsac.org/ratingsv01.html ' I gen comment ' RSACi North America Sever ' by ' [e-mail protected] ' for ' http://www.microsoft.com ' on ' 1997.06.30t14:21-0500 ' R (n0 s0 v0 l0) ' >

Note: Do not set the level too high. The RSAC evaluation system provides a standard for evaluating Web site content. Users can set up Microsoft Internet Explorer (IE3.0 or more) to exclude sites that contain pornographic and violent content. The HTML in the example above is taken from Microsoft's homepage. The code (n 0 S 0 v 0 L 0) indicates that the site does not contain unhealthy content. Ratings are assessed by RSAC, the rating agency of the American Entertainment Commission, if you want to learn more about the level of RSAC evaluation system, or if you need to evaluate your own website, you can visit the RSAC site: http://www.rsac.org/.

8, Page-enter, Page-exit (Entry and exit)

Description: This is a number of special effects when the page is loaded and paged out.

Usage: <meta http-equiv= "Page-enter" content= "Blendtrans (duration=0.5)" >

<meta http-equiv= "Page-exit" content= "Blendtrans (duration=0.5)" >

Two

The content of name specifies the actual contents. For example, if the level (rank) is value (value), content may be beginner (beginner), intermediate (intermediate), advanced.

1, Keywords (keywords)

Description: The keyword list provided for search engine is transferred from global net edu24ol.com to global net edu24ol.com to global net edu24ol.com

Usage: <meta name= "Keywords" content= "keyword 1, keyword 2, keyword 3, keyword 4,......" >

Note: Each keyword is separated by a comma ",". The usual use of meta is to specify keywords that search engines use to improve search quality. When several meta elements provide document language dependency information, search engines use the Lang feature to filter and display search results through the user's language precedence reference. For example:

<meta name= "Kyewords" lang= "EN" content= "Vacation,greece,sunshine" >

<meta name= "Kyewords" lang= "FR" content= "Vacances,grè:ce,soleil" >

2, Description (Introduction)

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

Usage: <meta name= "Description" content= "A brief description of your webpage" >

Attention:

3, Robots (Robot Wizard) transferred from the global net edu24ol.com transferred from the global net edu24ol.com to the global net edu24ol.com

Description: Robots is used to tell the search robot which pages need to be indexed and which pages do not. The content parameters are all, none, Index, NOINDEX, follow, nofollow. The default is all.

Usage: <meta name= "Robots" content= "all| none| Index| Noindex| follow| Nofollow ">

Note: Many search engines log on to websites by releasing Robot/spider search, and these robot/spider use some of the META element features to determine how to log in.

All: The file will be retrieved and the link on the page can be queried;

None: The file will not be retrieved and the link on the page cannot be queried; (and "Noindex, no follow" play the same role)

Index: file will be retrieved; (Let Robot/spider log in)

Follow: Links on the page can be queried, transferred from the global net edu24ol.com to the global net edu24ol.com from the global net edu24ol.com

NOINDEX: The file will not be retrieved, but the link on the page can be queried; (Do not let Robot/spider log in)

Nofollow: The file will not be retrieved and the link on the page can be queried. (Do not let the Robot/spider follow this page to look down)

4. Author (author)

Description: Label the author or production group of the page

Usage: <meta name= "Author" content= "Zhang San, [email protected]" >

Note: The content can be: You or your production group's name, or email

5. Copyright (Copyrights)

Note: The label copyright transferred from the global net edu24ol.com to the global net edu24ol.com from the global net edu24ol.com

Usage: <meta name= "Copyright" content= "This page is owned by Zerospace. All rights Reserved ">

Attention:

6. Generator (editor)

Description: Description of the editor

Usage: <meta name= "Generator" content= "pcdata| Frontpage| " >

Note: content= "You are using the editor"

7. Revisit-after (re-visit)

Description

Usage: <meta name= "Revisit-after" content= "7 Days" >

Attention:

Some other uses in the ★head

1. Scheme (scheme)

Description: Scheme can was used when name was used to specify how the value of content shouldbe interpreted.

Usage: <meta scheme= "ISBN" name= "identifier" content= "0-14-043205-1"/>

Attention:

2. Link (links)

Description: Linking to a file

Usage: <link href= "Soim.ico" rel= "Shortcut Icon" >

Note: Many sites if you save her in the Inbox, you will find that it is accompanied by a small icon, if you click again, you will find the Address bar also has a small icon. You can now easily implement this feature by adding this to your page header. <LINK> is used to link the current file to other URLs, but there is no link button for the <HEAD> tag between the following formats:

<link href= "URL" rel= "relationship" >

<link href= "URL" rev= "relationship" >

3, Base (link)

Description: Insert Web base Link Property transferred from global net edu24ol.com to global net edu24ol.com from global net edu24ol.com

Usage: <base href= "http://www.xia8.net/" target= "_blank" >

Note: All relative paths on your page will be prefixed with "http://www.cn8cn.com/" when linking. where target= "_blank" is the link file opened in a new window, you can do other settings. Change "_blank" to "_parent" is the link file will open in the parent window of the current window, instead the "_self" link file opens in the current window (frame), instead the "_top" link file is displayed in full screen.

These are some of the basic uses of META tags, the most important of which are: keywords and description settings. Why is it? The reason is very simple, these two statements can let the search engine can find you accurately, attract more people to visit your site! According to the current popular search engine (Google,lycos,altavista, etc.) work principle, search engine first sent the robot automatically on the WWW search, when the discovery of new sites, Easily retrieve keywords and description from the page and add it to your database, then sort the site by the density of the keywords.

From this perspective, we must remember to add keywords and description meta tags and write keywords and profiles as much as possible. Otherwise
The consequences would be:

If your page does not have keywords and description meta tags at all, then the bot can't add your site to the number
According to the library, netizens will not be able to search your site.

If your keyword selection is not good, the density of the keyword is not high, is ranked in dozens of or even millions of sites after the click of the Can
The energy is also very small.

Write good Keywords (keywords) to pay attention to the following points: transferred from the global net edu24ol.com to the global net edu24ol.com transferred from the global net edu24ol.com

Don't use common words. such as WWW, homepage, net, Web, and so on.

Don't use adjectives, adverbs. such as the best, the biggest and so on.

Don't use a general vocabulary, try to be as precise as possible. For example, "Ericsson Phone", instead of "T28SC" will be better.

"Three-person trip, must have my teacher", the search for the appropriate keywords is: to Google, Lycos, Alta and other famous search engines, search and
Your site is similar to the site, viewing the top ten site's meta-keywords, will be used on your site, the effect is conceivable.

★ Tips

To improve Search Ctr, there are a few "shortcuts" that can help you:

To increase the density of keywords, the keywords are hidden in the page (the text color is defined as the background color).

Meta tag details (meta tag function)///////////////////////////turn