# Profundis

> Profundis is a cybersecurity search engine for asset discovery. It indexes billions of hosts, services, open ports, SSL certificates, DNS records and WHOIS data so security researchers, OSINT analysts and bug bounty hunters can map attack surfaces and uncover exposed infrastructure.

## Core pages
- [Home](https://profundis.io/): What Profundis indexes and who uses it.
- [Host search](https://profundis.io/hosts): Search billions of services for exposed hosts, open ports, certificates and security headers.
- [DNS search](https://profundis.io/dns): Historical DNS records, passive DNS and subdomain discovery.
- [Pricing](https://profundis.io/pricing): Plans, credits and API access.
- [Contact](https://profundis.io/contact): Support and enterprise inquiries.

## Tools
- [Security tools](https://profundis.io/tools): Free toolkit overview — WHOIS, DNS/IP history, reverse IP, subdomain enumeration, ASN details, analytics-ID lookup, registrant explorer, typosquatting scanner, portfolio analyzer and favicon matcher. Running most tools requires a free account.

## Policies
- [Terms and conditions](https://profundis.io/terms)
- [Privacy policy](https://profundis.io/privacy-policy)
- [Refund and cancellation policy](https://profundis.io/refund-and-cancellation-policy)