Meta Tags:
Meta tags are HTML tags used in XHTML documents or to provide structured metadata about a Web page. They are part of a website of the department head. Meta tags several different attributes can be used on the same page. Descriptive words can be used to determine the page description, keywords and any other metadata that are not provided by other tags and attributes of the head.
Meta tags have two purposes: either to simulate the use of the HTTP header field response, or integrate additional metadata in the HTML document.
HTML up to and including HTML 4.01 and XHTML had four valid attributes: HTTP-EQUIV, the name and the outline of the contents. In HTML 5 there are now five valid attributes, and after characters added. HTTP-EQUIV is used to emulate the HTTP header and include meta name. The value of the statement, in any case, is contained in the content feature, which is the only feature required unless the characters. Characters are used to indicate the general nature of this document, and is available in HTML5.
These labels must be placed at the top of the signs for HTML document or XHTML.
Robot.Txt:
Robots.txt file, also known as robots.txt file or robots.txt file is the standard protocol used by Web sites to communicate with other reptiles and robots.txt file specifies standard Web format for reporting robots.txt instructions on the areas of on-site file should not be processed or digital. Often robots.txt file used by search sites and to arrange the file or webmasters to review the source code engines. Not all robots.txt file including cooperation with e-mail harvesters, and hackers and malware robots.txt standard scanning for security weaknesses file. Standard varies, but can be used in conjunction with maps, the inclusion of the standard robots.txt file locations.
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