# Search Engine OSINT

### Search Engine Operators

Search engine OSINT is a collection of techniques that use search strings and operators to refine search queries. There are numerous useful operators that can be used to search for specific information about a site, domain, or company. These operators will differ for various search engines, the examples below apply specifically to Google.

* **AND** includes all specified keywords in query (cyber AND war)
* **OR** searches for the presence of one keyword or another (cyber OR war)
* **" "** searches for a specific pattern of words
* **Site** limits searches to a single domain. `site:Microsoft.com`
* **Filetype** limits searches to a specified file type. `site:Microsoft.com filetype:php`
  * You can also exclude specific file types using `site:Microsoft.com -filetype:html` 
* **Ext** is useful to identify which programming languages are used on the site. `site:Microsoft.com ext:jsp, ext:cfm, ext:pl`
* **Intext** identifies pages with specific terms in the content of the page `intext:"term to search for"`
* **Intitle** identifies pages with specific titles or content. `site:Microsoft.com intitle:"index of"` or `"parent directory"`
* **Inurl** searches for specific terms in a URL `inurl:"keyword`
* **Cache** searches Google's cached pages. `cache:Microsoft.com`
* Limit search to a single domain `site:Microsoft.com`
* Filter specific subdomains `site:Microsoft.com -site:www.microsoft.com`
* Filetype: limits search results to a specified file type `site:domain.com -filetype:html`
* Ext: useful for discerning programming languages used `ext:jsp, ext:cfm, ext:pl`
* Intitle: can help identify pages with specific titles or content `Intitle:”index of" "parent directory"`

### Important links

* Google hacking database: <https://www.exploit-db.com/google-hacking-database>
* Google -  <https://www.google.com/>
* Google Advanced Search -  <https://www.google.com/advanced_search>
* Google Search Guide -  <http://www.googleguide.com/print/adv_op_ref.pdf>
* Bing -  <https://www.bing.com/>
* Yandex -  <https://yandex.com/>
* DuckDuckGo -  <https://duckduckgo.com/>
* DuckDuckGo Search Guide -  <https://help.duckduckgo.com/duckduckgo-help-pages/results/syntax/>
* Baidu - [http://www.baidu.com/](https://www.baidu.com/)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://notes.oncyberwar.com/1.-reconnaissance-osint/google-hacks.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.