Unofficial Google Advanced Search
Google Search Box
1. Introduction
Disclamer: This site is not controlled or supported by Google in anyway.Any problems with the page can be directed to Joseph Becher, care of the address at the bottom of this page.
Welcome to the Unoffical Google Advanced Search page.
This page is provided as a reference and a guide to using the advanced search operators that Google provides.
Most of the operators have a Google Search box pre-filled so you can see example results.
With the announcement of SSL support on Google.com I changed all the search examples to use SSL as well.
2. Notes
- Google is case insensitive, meanting that 'gOoGle' is the same as 'GOOGLE' and 'google'
- Search operators are case sensitive, meaning that 'OR' is not the same as 'or'
- Without using any operators, Google will show pages with all words first, trying to find the words in order
- Google excludes common words (known as stop words) like 'I', 'the', 'a' etc
- Pay attention to operators that must be used alone
3. Search URIs
3.1. Basic Search URI
https://www.google.com/search?
hl=en
&q=test
&btnG=Google+Search3.2. Advanced Search URI
Google advanced search sends the following URI to the server. Here is the decoding:
https://www.google.com/search?
as_q=test (query string)
&hl=en (language)
&num=10 (number of results [10,20,30,50,100])
&btnG=Google+Search
&as_epq= (complete phrase)
&as_oq= (at least one)
&as_eq= (excluding)
&lr= (language results. [lang_countrycode])
&as_ft=i (filetype include or exclude. [i,e])
&as_filetype= (filetype extension)
&as_qdr=all (date [all,M3,m6,y])
&as_nlo= (number range, low)
&as_nhi= (number range, high)
&as_occt=any (terms occur [any,title,body,url,links])
&as_dt=i (restrict by domain [i,e])
&as_sitesearch= (restrict by [site])
&as_rights= (usage rights [cc_publicdomain,cc_attribute,cc_sharealike,cc_noncommercial,cc_nonderived]
&safe=images (safesearch [safe=on,images=off])
&as_rq= (similar pages)
&as_lq= (pages that link)
&gl=us (2-digit country code in lowercase)The department of Information and Computing Services for the University of California at Irvine maintains a list of country codes.
Note: Usage Rights does not seem to be available as a search operator.
If you know of one, please email Joseph Becher at the address at the bottom of the page.
3.3. Advanced Image Search URI
Google advanced image search sends the following URI to the server. Here is the decoding:
https://www.google.com/imghp?
as_q= (query string)
&hl=en (language)
&btnG=Google+Search
&as_epq= (complete phrase)
&as_oq= (at least one)
&as_eq= (excluding)
&imgtype= (restrict by image type)
&imgsz= (restrict by image size)
&imgc= (restrict by image color)
&as_filetype= (filetype extension)
&as_sitesearch= (restrict by [site])
&safe=off (safesearch [safe=on,images=off])
&as_st=yImage type, size and color restrictions are explained more in depth under the restricting image search results
section.3.4. Client Search URIs
Searching from Firefox 2.0.0.4:
https://www.google.com/search?
q=test
&ie=utf-8
&oe=utf-8
&aq=t
&rls=org.mozilla:en-US:official
&client=firefox-aSearching from Internet Explorer 7.0.5730.11:
https://www.google.com/search?
q=test
&sourceid=ie7
&rls=com.microsoft:en-US
&ie=utf8
&oe=utf8So far the only diference I can see is that the Firefox search allows images, where the Internet Explorer ones does not. If anybody wants to explain the query strings, or add their own, please email Joseph Becher at the address at the bottom of the page.
3.4. Miscellaneous Query Parameters
3.4.1. Showing Duplicate Content
Adding &filter=0 to the search URI will show similar results. This is the same as clicking the messageIn order to show you the most relevant results, we have omitted some entries very similar to the X already displayed.
3.4.2. Browse By Name
"Browse By Name" is a search method that first surfaced in the Google Toolbar. It was added to Firefox 2.0+ as the default search from the location bar. To use, it requires the following two parameters:&sourceid=navclient&gfns=14. Basic Operators
4.1. + Required
Forces Google to include the word. Can be used with stop words, as in 'over +the fence'.4.2. - Excluded
Excludes the word, ensuring that it will not appear of result, as in 'pig -bacon'.4.3. OR Operator
Gives you a choice. You can have 'one' OR 'the other', as in 'cats OR dogs'. Remember that this operator must be in all CAPS. You can also use the symbol for OR, '|', known as the pipe.4.4. " " Complete Phrase
Putting words in quotes talls Google to search for the complete phrase. This can also include stop words, as in "the search engine".4.5. ~ Similar Words
Search for similar words, or synonyms. Searching search ~tips will returns results with 'help','guide', 'tutorial' etc.
4.6. * Wildcard Search
The '*' is called a wildcard. Searching for 'looking for *' will return results like 'looking for dogs','looking for cats' etc. You can also use the wildcard with phrases, such as "Los Angeles * jobs" to search for jobs in Los Angeles, etc.
4.7. .. Number Range
Search within a range of numbers. Searching for 'computer $500..1000' will find computers between $500 and $1000 dollars.5. Advanced google operators
5.1. Time-based and Date-based
5.1.1. date: Last X Months
Search for 'new' pages Google added in the last X months, such as 'google date:3'date: accepts 3, 6 and 12.
5.1.2. daterange: Between Two Dates
You may limit your search to an exact date of a "range" of dates that a page was added by Google. Dates must be entered in julian format.Searching for 'google daterange:2453006-2453371' returns pages that Google indexed in the year 2004.
5.1.3. tbs=qdr: Limit Results by Time Period
With Google's release of Search options you can now limit your search results by time period. The format is as follows:&tbs=rltm:1 [real time results]
&tbs=qdr:s [past second]
&tbs=qdr:n [past minute]
&tbs=qdr:h [past hour]
&tbs=qdr:d [past 24 hours (day)]
&tbs=qdr:w [past week]
&tbs=qdr:m [past month]
&tbs=qdr:y [past year]
As an example, Results for 'Google' within the last day (http://www.google.com/search?q=google&tbs=qdr:d) will return search results for Google from the last 24 hours (1 day).
Of special interest is the real-time search option. By adding &tbs=rltm:1 to your search URI you can choose real-time results.
For example, the search for Google results in real-time (https://www.google.com/search?q=google&tbs=rltm:1) will return real-time results for 'Google' from blogs and Twitter©.
5.3. filetype: Filetypes
Google will return files of this type.Currently officially supported file types are pdf, ps, wk1, wk2, wk3, wk4, wk5, wki, wks, wku, lwp, mw, xls, ppt, doc, wks, wps, wdb, wri, rtf, swf, ans, txt, but other are supported as well, like xml, cpp, java etc.
5.4. site: Restrict To Site
Restricts the results to the given domain. site:jwebnet.net will find all indexed pages on www.jwebnet.net, while site:jwebnet.net design will find all design-related pages on www.jwebnet.net .You can also find your supplemental results using this query: site:www.jwebnet.net *** -sljktf.
5.5. cache: Google Cache
Displays the page from Google's saved cache. Other words in the search will be highlighted in the returned page.Very helpful if a page is down or deleted.
5.6. link: Sites That Link To
Returns pages that link to the your search. link:http://en.wikipedia.org/wiki/Google will list webpages with links pointing to wikipedia's page for Google.5.7. related: Related Sites
Returns pages that Google thinks are related.5.8. info: Website Information
returns some informations about the given web page. Typically website and description.Note the information below the results on this search
5.9. define: Define Word
Searched for the the definition of a word.5.10. phonebook: Google Phonebook
search in residential phone book. sample: phonebook:smith Los AngelesGoogle provides the phone number, address and a link to a Google map.
Google also provides a link to get your name removes if desired.
5.11. stocks: Stock Symbols
5.12. weather: Weather Forcast
Returns the weather forcast.5.13. music: Music Search
Returns track and album information for the search term.5.14. movie: Movie Search
Returns all movies related to the search term given. Sample: movie:transformersClicking on a movie title allows you to pull showtimes. You can also find movies by locations: movie:nyc , movie 10015.
5.15. Flight Information
Search for flights inside USA using the airport code. sample: jfk lax6. SEO-oriented Operators
6.1. allintitle: All Words In Title
Search for documents with all the words in their title.This operator cannot be combined with others.
6.2. intitle: Word In Title
Search for documents with the first word after the intitle operator in their title.6.3. allintext: All Words In Text
Search for documents with all the in their text.This operator cannot be combined with others.
6.4. intext: Word in Text
Search for documents with the first word after the intext operator in their text.6.5. allinurl: All Words In URL
Search for documents with all the words in their url.This operator cannot be combined with others.
6.6. inurl: Word In URL
Search for documents with the first word after the inurl operator in their url.6.7. allinanchor: All Words In Anchor
Search for documents with all the words in an anchor.This operator cannot be combined with others.
6.8. inanchor: Word In Anchor
Search for documents with the first word after the operator in an anchor.7. Google Calculator Guide
7.1. + - * % ^ Basic Math
You can use Google as a calculator for basic math:- 3+2 returns 5
- 4-1 returns 3
- 6*8 returns 48
- 15/5 returns 3
- 3^2 returns 9 (3 raised to power 2)
- 5%2 returns 1 (the remainder after division)
7.2. sqrt,nth root of x Roots
sqrt(49) returns 7, if you need non-square roots you can use for example 3th root of 27.7.3. sin, cos, arctan, tan... Trigonometry
Google calculator supports various trigonometic functions, expecting a radians value, that can be expressed also using the pi constant: sin(pi/2), tan (2/3*pi)7.4 ln Logarithm, Base e
Returns natural (base e) logarithm: ln(e^5)7.5. log Logarithm, Base 10
Returns base 10 logarithm: log(100)7.6. ! Fractorials
Returns n factorial: 3!Numbers can be entered also in hexadecimal, octal and binary base, using 0x, 0o and 0b prefixes, for example 5 +0xf+0b1001
7.7. Conversions
Google can do conversions too.
7.7.1. Degrees and Radians
in degreesin radians
You can convert radians to degrees: pi/2 in degrees or convert degrees into radians: 90 degrees in radians
7.7.2. Number Bases
in hexin binary
in octal
in decimal
You can convert to each of the given bases: 16 in hex , 16 in octal, 16 in binary, 0�11 in decimal
You can also use 2007 in roman numerals (in case you're building a temple and you need to know how to write the year on it)
7.7.3. Distance
You can use 100miles in km , 1m in mm, but also 200000 km in light-second etc.7.7.4. speed, time, temperature
Google can convert speed, time and temerature.- 100mph in kph
- 1 month in seconds
- 280 kelvin in celsius
- 50 fahrenheit in celsius
7.7.5. Currency
3 € in $ or 3 euros in dollars7.7.6. Cooking
Google can help with cooking...- 3 teaspoons in oz
- 1 cup + 1 tablespoon in teaspoon
8. Google Image Search
Google Image Search has advanced operators as well. They can be selected at Google's Advanced Image search page.8.1. Showing Duplicate Content
Adding &filter=0 to the search URI will show similar results. This is the same as clicking the messageIn order to show you the most relevant results, we have omitted some entries very similar to the X already displayed.
If you like, you can repeat the search with the omitted results included.
that is found on the last page of the results.
8.2. Showing only images of a certain type
Adding &imgtype= to the search URI lets you filter your results to a certain type:- &imgtype=news (news only)
- &imgtype=face (faces only)
- &imgtype=photo (photos only)
- &imgtype=clipart (clipart only)
- &imgtype=lineart (lineart only)
8.3. Showing only images of a certain size
Adding &imgsz= to the search URI lets yout filter your results to a certain size:- &imgsz=icon (small)
- &imgsz=small|medium|large|xlarge (medium)
- &imgsz=xxlarge (large)
- &imgsz=huge (large)
8.4. Showing only images of a certain color
Adding &imgc= to the search URI lets yout filter your results to a certain color:- &imgc=mono (black and white)
- &imgc=gray (grayscale)
- &imgc=color (full color) DEFAULT
8.5. Showing only images from a certain source
Add "source:life" to any Google image search and search only the LIFE photo archive.For example: https://images.google.com/images?q=Winter+Olympics+source:life will search the LIFE photo archive for images related to the Winter Olympics.
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