The anti-phishing domain name search engine and DNS monitoring service

Web interface for querying passive DNS data collected in our malware lab

Over 230 billion reverse DNS entries from 2008 to the present

Reverse DNS lookup

Discover hidden subdomains with unparalleled accuracy and speed

Information security tools from Private Key Project

Effortlessly Dive into URL Details

Scan your site now

Real-time URL and website scanner

Look up a site, Get our rating

ExpiredDomains.net gathers all the information you need to find good Expired Domains that are Pending Delete and you can Backorder

Quick and convenient search for the websites that probably belong to the same owner

Open repository of web crawl data

A sandbox for the web

Google's Safe Browsing technology examines billions of URLs per day looking for unsafe websites

Check if a domain has been typosquatted

Find out what websites are Built With

Validate email addresses for deliverability with our Email Validation API

Various kinds of research of IP numbers, Domain names, etc

Reverse lookup search engine for email and phone numbers

Subdomain enumeration

Discover subdomains and determine the attack surface of an organization

Search for the Person behind the Email address and find our reputation score

WHOIS Search, Domain Name, Website, and IP Tools

Comprehensive Domain Intelligence

Find out all email for a certain domain using search engines

Industry's fastest domain discovery engine and broadest, most accurate data

Deep Connections Between Domain Names & Their Owners

Investigate domains and IP addresses

Find email addresses of companies and people