Blacklists

Geo location API: find location of an IP address

Game World has free games that you can play online on any device.

Ipregistry is a fast, reliable IP geolocation and threat data API. People use Ipregistry to personalize content, analyze traffic, target ads, block countries but also to prevent abuse by detecting Proxy and Tor users, known spammers and bad bots.

Open Source freemium $5.0 (40,000 lookups)

Find anyone's email address

Database management & maintenance

Open source domain intelligence lookups for security recon

Find Any Email is a free email finding tool that finds and verifies email addresses in seconds...

Traceroute application with mapping and distance calculated and plotted on Google Maps.

Data cleansing software with a bureau service for verifying, correcting and enhancing both consumer and business data.

Bulk email verification for busy businesses and email marketers. Put your email validation on autopilot. One-time, 60-second setup, no developers needed. Get your emails delivered to real people and maximize your email ROI.

freemium $25.0 / Monthly (10,000 scanned emails/month, automatic daily cleanup, and more)

CyberTOOLBELT is a comprehensive set of tools designed to make the investigation of domains, IP addresses and other related information efficiently and effectively.

Generate create, available domain names for your website

Domain name, IP, autonomous system research web application.