Google Authenticator
2-Factor Verification Service
Enhance your security well beyond using just usernames and password with this free service. With Google Authenticator’s 2-Step Verification, you’ll protect your account with both your password and your phone. 2-Step Verification can help keep bad guys out, even if they have your password.
Quad9 DNS
Internet Privacy & Security Service
Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.
Check TLS
Secure Email TLS Checker
Email has three parts: your end, their end, and the Internet in the middle. You control your end, they control their end, but that middle part is “uncontrolled”. CheckTLS helps you secure and test the parts of your email system that touch the Internet.
byteplant
Email Security Check
Byteplant is dedicated to all aspects of email processing & management, offering a unique range of powerful software products and online services.
Zscaler Zulu
URL Risk Analyzer
Zulu is a dynamic risk scoring engine for web based content.
Zscaler Security Preview
Web Access Security Scan
Many enterprises find their networks still remain vulnerable due to functionality, performance, or configuration issues. Zscaler Security Preview instantly scans your security stack for gaps often missed, and can help you take corrective action.
Current State of the Internet
Live Map
This is a live broadcast of Internet statistics, as collected by Pingdom from over 700,000 users across the world.
Pingdom Website Monitoring
14 Day Free Trial
Monitors your site around the clock to verify that your site works by automatically testing it from 70+ locations globally, and provides immediate and reliable alerts.