The Yahoo! Index represents the core set of data available for all presentation applications. It contains search data gathered by the Yahoo! Search Crawler, such as page's title, summary, file size, MIME type, and other kinds of information that traditional search engine spiders have gathered for years.
For each search result, the Yahoo! Index contains up to sixteen
fields. Certain fields are not always present; for example, the
rel:Listing fields are not available for pages that are not
in the Yahoo!
Directory.
Yahoo! Search uses many of these values as defaults for
constructing search results. For example,
yahoo:index/rel:Posting/dc:description defines the search
result's default summary, but you can override this value in your presentation
application.
yahoo:index/dc:identifier — Provides the URL of
the search result, such as http://www.hp.com. This is the
URL that the title of search result links to. SearchMonkey does not
enable you to change a search result's URL.
![[Note]](images/docbook/note.png) |
Note |
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For Enhanced Result applications, any supplementary link URLs must belong to the host of the search result. For Infobar applications, supplementary link URLs may have any host. |
yahoo:index/media:fileSize — Indicates the size
of the search result's file in bytes. media:fileSize
represents the size of file itself, not any linked files such as
images, CSS, or JavaScript.
yahoo:index/dc:format — Indicates the MIME-type
of the search result's file, such as text/html or
application/pdf.
yahoo:index/dc:language — Indicates the language
the search result is written in using the appropriate ISO
639-1 language code. In rare cases where there is no ISO
639-1 code that maps to the page's language, this field becomes a
short, lowercase string that is not an ISO code.
yahoo:index/media:stockTickers — Provides a
semicolon-separated list of stockticker symbols for companies
mentioned in the search result. You can display the symbols directly
in the search result, or use them to fetch more financial
information about the company.
yahoo:index/rel:Posting/dc:type — Indicates that
the parent rel:Posting resource represents basic
metadata about a search result. This value is always
"searchresult".
yahoo:index/search:position — Indicates the
overall ranking of the search result for the user's search query,
starting with 1 (the top-ranking search result) and increasing from
there. SearchMonkey does not enable you to change a search result's
ranking.
yahoo:index/dc:title — Provides the title of the
search result. Yahoo! Search uses various techniques to determine
the best default title for this URL. You can override the title in
your presentation application, though not the URL it links
to.
yahoo:index/dc:description — Provides the search
result's summary, a few lines of text that provide the user with
some context about the page. You can override the summary in your
presentation application.
yahoo:index/dc:date — Indicates the date when the
Yahoo! Search Crawler last indexed the search result.
yahoo:index/search:cache — Provides the URL for
the Yahoo! cached version of the search result.
yahoo:index/rel:Posting/rel:Link/dc:type —
Indicates that the parent rel:Link resource represents
the cached version of the search result. This value is always
"cache".
yahoo:index/dc:subject — Provides the URL for the
page's listing in the Yahoo! Directory, such as
http://dir.yahoo.com/Business_and_Economy/.
yahoo:index/rel:Listing/dc:type — Indicates that
the parent rel:Listing resource represents a listing in
the Yahoo! Directory. This value is always
"directory".
yahoo:index/dc:subject/dc:title — Provides a
short, reader-friendly representation of the page's category in the
Yahoo! Directory, such as "Internet Portals" or
"Magazines > Germany". For the fully qualified
category chain, you must parse the URL value of
yahoo:index/rel:Listing/@resource. For example, the
German magazine Der
Spiegel's reader-friendly category is "Magazines >
Germany", but the full category chain is "News and
Media > Magazines > By_Region > Countries >
Germany".
|
Note |
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Yahoo! Directory dates back to "Jerry and David's Guide to the World Wide Web", the precursor website that Yahoo! founders David Filo and Jerry Yang started as graduate students. For more information about Yahoo! Directory and its top-level categories, refer to the Yahoo! Directory Help pages. |
yahoo:index/dc:subject/dc:date — Indicates the
timestamp when the page was last updated in the Yahoo!
Directory.