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<META>
Definition
This tag is used inside the <HEAD>
command and it embeds document meta-information. These
information are extracted by several servers/clients
and are used to identify, index, and catalog specialized
document meta-information.
Attributes
NAME="text" - Names a
property that includes the author, publication, date,
among others. If this attribute is absent, the name
can be assumed as the same as the value of HTTP-EQUIV.
CONTENT="text" - Supplies
a value for the name property.
HTTP-EQUIV="text" -
Binds the element to an HTTP response header. If this
is known, the contents can be processed. HTTP header
names are not case-sensitive. If this attribute is
absent, the NAME attribute should be used to identify
this meta-information and should not be used within
an HTTP response header.
SCHEME="schemename"
- Identifies the scheme to be used to interpret the
property's values.
Use
Use this tag to make the information
more accessible to spiders and robots for automatic
indexing. This is also good to make certain information
more accessible to other programs within a collection
of HTML documents. HTTP-EQUIV values are determined
by the user and the robot owners. A robot that is
declared to support a specific HTTP-EQUIV value quickly
spreads around the Web. Other robots record all these
meta-information so that data searches may be able
to use these information.
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Common
uses of the <META> command are:
<META HTTP-EQUIV="expires" CONTENT="DDD,
DD MMM YYYY HH:MM:SS GMT"> -
Indicates the date of when the content will expire.
This is often used to indicate to a search engine when
to referesh the information it has on its database.
<META NAME="keywords" CONTENT="keyword1
keyword2 keyword3"> - Gives the key words
for search engines.
<META HTTP-EQUIV="reply-to"
CONTENT="username@email.domain.name">
- Indicates the e-mail address of the author of the
document.
<META HTTP-EQUIV="resource-type"
CONTENT="document"> - indicates
the type of resource of the document. Common values
of "document" are document, catalog, bibliography,
and new releases.
<META NAME="description"
CONTENT="text"> - Displays the text
that is specified here whenever search engines show
this document is the search results.
<META HTTP-EQUIV="distribution"
CONTENT="scope"> - Indicates the
scope or range of the application or distribution of
the document. Common values of "scope" are
global, domestic, local, and private.
<META HTTP-EQUIV="copyright"
CONTENT="name - date"> - Indicates
the copyright holder and the date.
<META HTTP-EQUIV="REFRESH"
CONTENT="value[; URL]"> - Forces
the document to be reloaded or for a new document to
be loaded after a specified number of seconds. |
