h2scan

README

h2scan

Scan a list of sites to see which support HTTPS, SPDY/3.1 and HTTP/2. Outputs a CSV containing information about which protocols are supported.

Usage

To get information about a single site

$ echo "http2.cloudflare.com" | ./h2scan
http2.cloudflare.com,t,t,t,t,t,t,t,t,h2 spdy/3.1 http/1.1

h2scan will read lines from an input file and perform multiple tests concurrently for bulk testing.

Options

-workers sets the number of worker routines performing the testing. Defaults to 10.

-fields causes h2scan to output a header line in the CSV containing field names.

-log gives the name of a file to which log information will be written. If given the file is overwritten.