> For the complete documentation index, see [llms.txt](https://bellingcat.gitbook.io/toolkit/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bellingcat.gitbook.io/toolkit/categories/websites.md).

# Websites

| Name                       | Description                                                                                                                                                                                              | Cost                                                         | Tool Review and Guide                                                                                                                                                      |
| -------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Distill.io                 | Distill.io is a website change monitoring tool that allows users to track changes on web pages.                                                                                                          | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/distill](/toolkit/more/all-tools/distill.md)                                                                         |
| DNS History                | Collection of historical DNS information.                                                                                                                                                                | <mark style="background-color:green;">Free</mark>            | <p><sub><em>Guide not available</em></sub></p><p><a href="http://completedns.com/"><mark style="background-color:blue;"><http://completedns.com/></mark></a></p>           |
| Domain Research Suite      | Domain Research Suite provides tools to obtain registration and ownership data for domain names, along with historical search and reverse lookup functionality.                                          | <mark style="background-color:red;">Paid</mark>              | [https://bellingcat.gitbook.io/toolkit/more/all-tools/domain-research-suite](/toolkit/more/all-tools/domain-research-suite.md)                                             |
| DomainTools Whois Lookup   | DomainTools Whois provides detailed domain name registration information, and can be used to investigate details about domains or IP addresses.                                                          | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/domaintools-whois-lookup](/toolkit/more/all-tools/domaintools-whois-lookup.md)                                       |
| Geo Data Tool              | IP geolocation service to identify the location and other technical information associated to IP addresses.                                                                                              | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/geo-data-tool](/toolkit/more/all-tools/geo-data-tool.md)                                                             |
| Grep.app                   | grep.app is a free web-based search engine that allows users to search the contents of public GitHub repositories.                                                                                       | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/grep.app](/toolkit/more/all-tools/grep.app.md)                                                                       |
| ICANN Lookup               | This tool allows you to search for the current registration data of internet domains.                                                                                                                    | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/icann-lookup](/toolkit/more/all-tools/icann-lookup.md)                                                               |
| IDN Checker                | IDN Checker detects visually similar versions of a domain.                                                                                                                                               | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/idn-checker](/toolkit/more/all-tools/idn-checker.md)                                                                 |
| 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)                                                                     |
| Moz Link Explorer          | Analyse the links of any website.                                                                                                                                                                        | <mark style="background-color:green;">Free</mark>            | <p><sub><em>Guide not available</em></sub></p><p><a href="http://moz.com/link-explorer"><mark style="background-color:blue;"><http://moz.com/link-explorer></mark></a></p> |
| PublicWWW                  | PublicWWW is a source code search engine that allows you to search for any alphanumeric snippet, signature, or keyword within the HTML, JavaScript, and CSS code of millions of web pages.               | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/publicwww](/toolkit/more/all-tools/publicwww.md)                                                                     |
| Shodan                     | A search engine for internet-connected devices, from webcams to databases.                                                                                                                               | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/shodan](/toolkit/more/all-tools/shodan.md)                                                                           |
| The Information Laundromat | A tool for analyzing content replication and site architecture to detect information laundering.                                                                                                         | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/the-information-laundromat](/toolkit/more/all-tools/the-information-laundromat.md)                                   |
| Urlscan.io                 | urlscan.io is an online tool that allows investigators to analyse, monitor, and document websites in real time.                                                                                          | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/urlscan.io](/toolkit/more/all-tools/urlscan.io.md)                                                                   |
| Wayback Machine            | The Internet Archive's Wayback Machine lets users view and archive web pages, aiding in historical research and digital preservation.                                                                    | <mark style="background-color:green;">Free</mark>            | [https://bellingcat.gitbook.io/toolkit/more/all-tools/internet-archive](/toolkit/more/all-tools/internet-archive.md)                                                       |
| Web Archives               | A browser extension to view archived and cached versions of a website on multiple archiving sites.                                                                                                       | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/web-archives](/toolkit/more/all-tools/web-archives.md)                                                               |
| What CMS                   | WhatCMS is a web-based tool for anyone needing information about the technologies behind any website, including the content management system (CMS), e-commerce platforms, and hosting providers and web | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/what-cms](/toolkit/more/all-tools/what-cms.md)                                                                       |
| Whoxy                      | Whoxy is a domain search engine or "whois lookup" tool to find (the history of) registration information on a domain, such as the registrar, the status of the domain and the date of registration.      | <mark style="background-color:orange;">Partially Free</mark> | [https://bellingcat.gitbook.io/toolkit/more/all-tools/whoxy](/toolkit/more/all-tools/whoxy.md)                                                                             |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://bellingcat.gitbook.io/toolkit/categories/websites.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.