a page containing primarily non-text content such as an graphical buttons linking to other documents), the description meta tag can be used to provide a summary. a collection of reports all starting with near-identical standard preamble) or there is little or no coherent descriptive text (e.g. If the default summary will not give a clear indication of what the document is about and distinguish it from others (e.g. ![]() That is often sufficient, but in other cases it may be helpful to give additional information through meta tags, to provide a better summary or to list additional keywords for which the document would be relevant. The words found in the text as a whole contribute to the search engine's database and will be used to match documents to search requests. ![]() The summary and document title will be the reader's main indication of whether it is worth following the link to the document. ![]() When indexing an HTML page, search engines typically extract the initial part of the document (excluding HTML tags and other "extraneous" content) to form a summary which will give an indication of what the document is about.
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