Try out a user registration and login system that doesn't allow your plain-text password to leave the browser!
Have your credentials been exposed in a data breach? Use our privacy-preserving service to check.
CAPTCHA without the puzzle
Try your local biometric or hardware key device to pass a humanity test!
Browsing Experience Security Check
Determine how vulnerable your current browsing experience is!
Cloudflare's much more interesting Internet connection speed test!
Measuring Active Listeners, Connection Observers, and Legitimate Monitors
Statistics on the number of https connections that can be listened to by actors "in the middle"!
Explore the Certificate Transparency Ecosystem
What proportion of certificates are signed with deprecated algorithms?
League of Entropy
The first unbiased cryptographically verified randomness beacon!
Is BGP Safe Yet?
Is your ISP doing its part to keep Internet route selection secure?
What Does Cloudflare's Edge Say About My Connection?
Ask the Cloudflare Edge for a JSON report of our connection properties!
Distributed Web Gateways: IPFS and Ethereum
HTTP connectivity to content on the IPFS network and the state of the Ethereum blockchain!