HTTPS Ecosystem Scans

In October 2013, we released one of our first studies based on Internet-wide scanning: Analysis of the HTTPS Certificate Ecosystem. Since that time, our scanning of the HTTPS ecosystem has evolved considerably and we now maintain several services and data sets:

• Raw Data from 2013 Study
• Scans.IO: Raw IPv4 and Alexa Top Million Scans
• Censys: web-based interface for exploring scan data