reprinted from: http://blog.sina.com.cn/s/blog_65c74cce0102v39z.html thank the blogger very much, eager to use, another one more savor the re-finishing this blog post. The Http-equivmeta tag is divided into two parts: the HTTP header information (HTTP-EQUIV) and the page description information (NAME). ★HTTP-EQUIVHTTP-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 (setting of the display character set) Description: Sets the character set used by the page to illustrate the language of the text used in the home page production, Based on this, the browser invokes the corresponding character set to display the page content. Usage: 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 Description: How long (seconds) to refresh your Web page, or how long it takes to automatically link pages to other pages. Usage: Note: 5 of these are meant to be automatically refreshed to URL URLs after 5 seconds of stay. 3. Expires (term) Description: Specifies the expiration time of the page in the cache, and once the page expires, it must be re-accessed on the server. Usage: Note: The time format of GMT must be used,or set directly to 0 (number indicates how much time expires after). 4, Pragma (Cach mode) Description: Prohibit the browser from the local computer cache to access the page content. Usage: NOTE: The page is not guaranteed to exist 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: Browser access to a page will be in the cache, the next time you visit it can be read from the cache, 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: 21-oct-98 16:14:21 GMT; Path=/> Note: The time format of GMT must be used.
HTML tag Details page tags in detail meta-detailed meta tags META tag role
6, Window-target (display window settings) Description: Force the page in the current window as a separate page display. Usage: 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: In Internet options in IE, there is a content setting that prevents you from browsing some restricted sites, and the limit level of the site is set by this parameter. Usage: (PICS-1.1 ' http://www.rsac.org/ratingsv01.html ' I gen comment ' RSACi North America Sever ' by '[email 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 the page is loaded and recalled some of the effects. Usage: NOTE: Blendtrans is a kind of dynamic filter that produces a fade effect. Another dynamic filter Revealtrans can also be used for page entry and exit Effects: Duration represents the duration of the filter effect (in seconds) transition filter type. Indicates which effect to use, with a value of 0-23. 0 Rectangle Reduced 1 Rectangle enlarged 2 round reduced 3 round enlarged 4 down to top refresh 5 up to bottom refresh 6 left to right refresh 7 right to left flush 8 vertical shutter 9 horizontal shutter 10 offset transverse shutter 11 offset vertical Shutter 12 point diffusion 13 to middle refresh 14 middle to left Middle 17 right down to top left 18 right top to left lower 19 left top to bottom right 20 left down to top 21 horizontal bar 22 vertical bar 23 above 22 random selection of one
9. msthemecompatible (XP topic) Description: Whether to turn off XP theme usage in IE: note: Turn off XP's Blue stereo button system display style, so it looks like Win2K. 10, IE6 (page builder) Description: Page Builder generator, is IE6 usage: note: What things to do, similar products factory manufacturers. 11, Content-script-type (script-related) Description: This is a recent web-site specification, indicating the type of script in the page. Usage: NOTE: The ★name variable name is a description of the Web page, corresponding to the content (Web page contents), so that search engine robots to find, classify (currently almost all search engines use online robots automatically find meta values to classify Web pages). The value of name (name=) specifies the type of information provided. Some of the values are already defined. such as description (description), keyword (keyword), refresh, and so on. You can also specify any other value, such as: CreationDate (creation date), document ID (DOC number), level, and so on. 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 (keyword) Description: For the search engine to provide keyword list usage: note: Each keyword between the English comma "," separated. 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: 2, Description (Introduction) Description: Description used to tell the search engine the main content of your site. Usage: NOTE: 3, Robots (Robot Wizard) Description: Robots is used to tell the search robot which pages need to be indexed, which pages do not need to be indexed. The content parameters are all, none, Index, NOINDEX, follow, nofollow. The default is all. Usage: NOTE: Many search engines log on to websites by releasing Robot/spider search, and these robot/spider use some of the META elements 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 may not be queried; (and Noindex, no followThe same effect) index: The file will be retrieved; (Let Robot/spider login) follow: The link on the page can be queried; NOINDEX: The file will not be retrieved, but the link on the page can be queried; (do not allow Robot/spider to 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)
What is meta tag meta tag usage TCP IP detailed JSP application development detailed
4, Author (author) Description: Label the page's author or production group usage:[email protected]> Note: The Content can be: You or your production group name, or EMAIL5, copyright description: Label Copyright usage: NOTE: 6, Generator (editor) Description: Editor's description usage: NOTE: content= You use editor 7, Revisit-after (re-visit) Description: Usage: Note: Some other usage in ★head 1, Scheme description: scheme can be used when name is used to specify how the value of C Ontent should be interpreted. Usage: NOTE: 2, link (links) Description: Link to File Usage: Note: Many sites if you save her in the Inbox, you will find it with a small icon, If you click Enter again, you will find a small icon in the address bar. You can now easily implement this feature by adding this to your page header. Used to link the current file with other URLs, but there will be no link button, used in the tag room, the format is as follows: 3, base (base link) Description: Insert Web page Base Link Property usage: Note: All relative paths on your page will be preceded by "http://www.***.com/" when linking. Where Target=_blank is the link file opens 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.
Generally put these three feet have been
ask the person's cross-examine 2010-08-10 13:45
Description and keywords, these two seem to be the same, so I choose one of them?
the team's complement 2010-08-10 13:52
These three are necessary, not nearly as much as the difference.
Description description is searched and displayed by the search engine, and keywords (keyword) is the keyword you enter to search for keywords such as: NetEase, then show the most closely related to the page,
So when you make a Web page, these three must not be less.
The first one is the type of code you use for your Web page.
ask the person's cross-examine 2010-08-10 14:08
Description and keywords, in which the description of the text, text and text is separated by commas, then the comma is the English comma or Chinese comma?
the team's complement 2010-08-10 14:11
Comma in English state or you separate each keyword with a space
However, individual suggestions are separated by commas and are not suggested to be separated by spaces.
ask the person's cross-examine 2010-08-10 22:05
Description description is searched and displayed by the search engine, such as my web page mainly about an article, then is not in the description to enter the text of this article?
the team's complement 2010-08-11 09:10
Yes, you'd better summarize the brief content of this article and fill it in.
Tips on how to use meta:
Meta tags are used to describe the properties of a Web page in a language, the standard meta tags can facilitate search engine ranking, improve search engine site weight rankings. To the site to do more in line with the search engine standards must understand the META tag, the following from Seoer to tell you about the meaning of meta-tags and how to use:
1. Meta tag keywords
The wording is:
Meat the Keywords information parameter of the label, which represents the keyword of the website.
2. Meta tag description
Meta tags are description information parameters that represent the main content of the website and what the profile is.
3. Meta tag http-equiv=content-type content= "text/html
Http-equiv=content-type represents the HTTP header protocol, prompting the browser Web page for information,
Meta tag of description information parameters such as GB2312, the representative of the website is the use of the code is Simplified Chinese;
Meta tag description information parameters such as BIG5, the representative of the website is the use of the encoding is traditional Chinese;
Meta tag of the description information parameters such as ISO-2022-JP, the representative of the website is to use the encoding is in Japanese;
Meta tag of the description information parameters such as ks_c_5601, the representative of the website is to use the encoding is Korean;
Meta tag description information parameters such as Iso-8859-1, the representative of the website is the use of the code is in English;
META tags of the description information parameters such as UTF-8, representing the world's universal language coding;
4. Meta tag Generator
Meta tag of the generator information parameter, which represents the description of what the website uses for software production.
5. Meta Tag author
Meta tag of the author information parameter, which represents the website copyright author information.
6. Meta tag http-equiv= "Refresh"
The refresh of the meta tag represents how much time the page is automatically refreshed, plus the URL parameters in the URLs represent how long it takes to automatically link to other URLs.
7. Meta tag http-equiv= "Pragma" content= "No-cache"
The representative prohibits the browser from accessing the contents of the page from the local computer's cache, setting, visiting
Users will not be able to browse offline.
8. The copyright of META tags
Meta tag of the copyright information parameters, representative of the website information.
9. Meta tag http-equiv= "Imagetoolbar"
Specifies whether the Picture toolbar is displayed when the false representation is not displayed, and when True represents the display.
10. Meta Tag Content-script-type
Web page specification that indicates the type of script in the page.
11. Meta Tag Revisit-after
Revisit-after on behalf of the site re-visit, 7 days for 7 day, and so on.
12. Meta tag robots
Robots representative tells the search engine what pages the robot crawls
The properties are described as follows:
The information parameter is all: The file will be retrieved and the link on the page can be queried;
The information parameter is none: The file will not be retrieved, and the link on the page can not 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 link on the page can be queried;
The information parameter is nofollow: The file will not be retrieved, the link on the page can be queried.
13. Meta tag
Represents the page in the current window as a separate page display, you can prevent their own web page is called by others as a frame page, settings are: _blank, _top, _self, _parent.
14. Meta Tag Set-cookie
On behalf of the cookie setting, if the webpage expires, the cookie will be deleted and the GMT time format must be used.
"JSP" <meta> label usage
