# Multiple Platforms

| Name               | Description                                                                                                                                                                                         | Cost                                                         | Tool Review and Guide                                                                                                                                                                  |
| ------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Blackbird          | Check usernames and email addresses on websites and social networks                                                                                                                                 | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/blackbird](/toolkit/more/all-tools/blackbird.md)                                                                                 |
| Have I Been Pwned? | Does an email address appear in data breaches?                                                                                                                                                      | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/have-i-been-pwned](/toolkit/more/all-tools/have-i-been-pwned.md)                                                                 |
| holehe             | holehe allows you to check if the mail is used on different sites like twitter, instagram and will retrieve information on sites with the forgotten password function.                              | <mark style="background-color:green;">Free</mark>            | <p><sub><em>Guide not available</em></sub></p><p><a href="https://github.com/megadose/holehe"><mark style="background-color:blue;"><https://github.com/megadose/holehe></mark></a></p> |
| Intelx.io          | Find user details in data breaches                                                                                                                                                                  | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/intelx.io](/toolkit/more/all-tools/intelx.io.md)                                                                                 |
| Namechk            | A username and domain search tool that checks on which platforms or domain a given username is registered.                                                                                          | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/namechk](/toolkit/more/all-tools/namechk.md)                                                                                     |
| Open Measures      | Open Measures helps open source researchers investigate harmful online activity such as extremism and disinformation.                                                                               | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/open-measures](/toolkit/more/all-tools/open-measures.md)                                                                         |
| Sherlock           | Allows a user to search for the presence of specific usernames across more than 400 websites and social networks.                                                                                   | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/sherlock](/toolkit/more/all-tools/sherlock.md)                                                                                   |
| Skopenow           | Social Media Investigations - name, phone, email, username searches                                                                                                                                 | <mark style="background-color:red;">Paid</mark>              | [https://bellingcat.gitbook.io/toolkit/more/all-tools/skopenow](/toolkit/more/all-tools/skopenow.md)                                                                                   |
| Social-searcher    | Search hashtags and usernames across various platforms.                                                                                                                                             | <mark style="background-color:orange;">Partially Free</mark> | <p><sub><em>Guide not available</em></sub></p><p><a href="https://www.social-searcher.com/"><mark style="background-color:blue;"><https://www.social-searcher.com/></mark></a></p>     |
| WhatsMyName        | Search for usernames on several hundred platforms                                                                                                                                                   | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/whats-my-name](/toolkit/more/all-tools/whats-my-name.md)                                                                         |
| Zeeschuimer        | Zeeschuimer is a browser extension for collecting social media posts that are visible in your web browser, enabling systematic analysis of content from platforms that are hard to scrape via APIs. | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/zeeschuimer](/toolkit/more/all-tools/zeeschuimer.md)                                                                             |


---

# 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://bellingcat.gitbook.io/toolkit/categories/social-media/multiple-platforms.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.