# Search Engine Operators
## Bing
**Bing Search Guide:**
| **Example** | **What It Does** |
| --------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **contains**:gif | Keeps results focused on sites that have links to the file types that you specify |
| **ext:** docx | Returns only web pages with the [file extension](https://www.lifewire.com/what-is-a-file-extension-2625879) that you specify |
| **filetype:** pdf | Returns only web pages created in the file type that you specify |
| **intitle:** 2019 **inbody:** wimbledon | Returns only web pages that contain the specified term in the metadata |
| **ip:** 207.241.148.80 | Finds sites that are hosted by a specific [IP address](https://www.lifewire.com/what-is-an-ip-address-2625920) |
| **Language:** fr | Returns only web pages for a certain language (requires the [language code](http://help.bing.microsoft.com/#apex/18/en-US/10004/-1)) |
| **loc:** US | Returns only web pages from a specific country/region. To focus on two or more, use a logical OR to group them (requires the [country or region code](http://help.bing.microsoft.com/#apex/18/en-US/10004/-1)) |
| **prefer:** history | Adds emphasis to a search term or another operator to help focus the results |
| **site:** site.com | Returns web pages that belong to a specific website. Also works for [TLDs](https://www.lifewire.com/top-level-domain-tld-2626029) (such as **site:edu**) |
| **feed:** Technology | Finds RSS or Atom feeds about the search term |
| **site:** site.com **hasfeed:** world | Finds web pages that contain an RSS or Atom feed on a website for the terms you search for |
| **url:** site.com | Checks whether the domain or [URL](https://www.lifewire.com/what-is-a-url-2626035) is in the Bing index |
**Source:**
## Google
**Advanced Search Page:**
**Linked examples:**
**PDF Guide:**
{% hint style="info" %}
Google has a large variety of search operators. It would be advisable to download and consult the above linked PDF.
{% endhint %}
## DuckDuckGo
**Search Syntax:**
| Example | Result |
| --------------------------- | --------------------------------------------------------------------------------------------------- |
| **cats dogs** | Results about cats or dogs |
| **"cats and dogs"** | Results for exact term "cats and dogs". If no results are found, we'll try to show related results. |
| **cats -dogs** | Fewer dogs in results |
| **cats +dogs** | More dogs in results |
| **cats filetype:** pdf | PDFs about cats. Supported file types: pdf, doc(x), xls(x), ppt(x), html |
| **dogs site:** example.com | Pages about dogs from example.com |
| **cats -site:** example.com | Pages about cats, excluding example.com |
| **intitle:** dogs | Page title includes the word "dogs" |
| **inurl:** cats | Page url includes the word "cats" |
| **!safeon** | Append to search to turn on Safe Search |
| **!safeoff** | Append to search to turn off Safe Search |
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