The webpages maintained by the
Google Help Center have text describing more than 15 various search options.
The Google operators:
- OR – Search for either one, such as "price high OR low" searches for "price" with "high" or "low".
- "-" – Search while excluding a word, such as "apple -tree" searches where word "tree" is not used.
- "+" – (Removed on 19 October 2011). Force inclusion of a word, such as "Name +of +the Game" to require the words "of" & "the" to appear on a matching page.
- "*" – Wildcard operator to match any words
between other specific words.
Some of the query options are as follows:
- define: – The query prefix "define:" will
provide a definitionof the words listed after it.
- stocks: – After "stocks:" the query terms are
treated as stock ticker symbols for lookup.
- site: – Restrict the results to those websites in the
given domain, such as, site:www.acmeacme.com. The option
"site:com" will search all domain URLs named with
".com" (no space after "site:").
- allintitle: – Only the page titles are searched (not
the remaining text on each webpage).
- intitle: – Prefix to search in a webpage title, such as
"intitle:google search" will list pages with word
"google" in title, and word "search" anywhere (no
space after "intitle:").
- allinurl: – Only the page URL address lines are
searched (not the text inside each webpage).
- inurl: – Prefix for each word to be found in the URL;
others words are matched anywhere, such as "inurl:acme search"
matches "acme" in a URL, but matches "search" anywhere
(no space after "inurl:").
The page-display options (or query types) are:
- cache: – Highlights the search-words within the cached
document, such as "cache:www.google.com xxx" shows cached
content with word "xxx" highlighted.
- link: – The prefix "link:" will list webpages
that have links to the specified webpage, such as
"link:www.google.com" lists webpages linking to the Google
homepage.
- related: – The prefix "related:" will list
webpages that are "similar" to a specified web page.
- info: – The prefix "info:" will display some
background information about one specified webpage, such as,
info:www.google.com. Typically, the info is the first text (160 bytes,
about 23 words) contained in the page, displayed in the style of a results
entry (for just the 1 page as matching the search).
- filetype: – results will only show files of the desired
type (ex filetype:pdf will return pdf files)
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