Intelligence X

Intelligence X is a selector search engine. You do not type a sentence. You type an email, a domain, an IP, a CIDR, a URL, or another identifier the help pages list as valid, and it looks for that value in leaked files, dark-web sources, and a long-term page archive.

Phonebook is the related view for enumerating emails and other selectors tied to a domain. Free use is limited. Concurrent searches will bounce you. Paid plans raise the caps and open the API.

What makes it different from a breach checker

HIBP and HackCheck answer “is this value in a known dump.” Intelligence X answers “where does this value appear in a file, a paste, or a page we kept.” That includes historical copies of sites that are gone, and documents that were never packaged as a named “breach.” The archive is the product as much as the search.

The tradeoff is noise. A selector hit can be a full leak, a forum scrape, or a single mention on a page that has nothing to do with your case. You still have to open the item.

When I use it

When I have a domain and I want every email that leaked with it. When a page disappeared and Wayback does not have the right snapshot. When a selector might live in a file rather than in a structured breach row.

I do not start here. I start with a tighter tool, then come to Intelligence X when I need the long tail. It stays in the directory because that long tail is real. It is not a Gem because the first useful result often still takes more reading than I want on the clock.