How many recently visited domains used wordpress?

wp_domain_count.rb

#!/usr/bin/env ruby

## Dependencies:
##  * curl
##  * jq (not really needed, but I like it)
##  * sqlite
##  * quit chrome before running this since the History file is locked

require 'uri'

HISTORY_FILE = File.expand_path("~/Library/Application Support/Google/Chrome/Default/History")
BW_KEY = "ENTER_YOUR_BUILTWITH_API_KEY"
LIMIT_TO_50 = true # 50 credits available with free key from api.builtwith.com

def domains_from_chrome(count=1000)
  sql = "select url from urls order by last_visit_time desc limit #{count}"
  `sqlite3 "#{HISTORY_FILE}" "#{sql}"`.split("\n").map{|u| URI.parse(u).host}.uniq
end

def built_with_wordpress?(url="builtwith.com")
  lookup = "http://api.builtwith.com/v3/api.json?KEY=#{BW_KEY}&LOOKUP=#{url}"
  bw_results = `curl -s "#{lookup}" | jq '.Result.Paths[].Technologies[].Name' | grep Wordpress`.strip
  puts bw_results
  !bw_results.empty?
end

domains = domains_from_chrome
if LIMIT_TO_50
  domains = domains[0...50]
end

count = domains.count
wp_count = 0

domains.each do |domain|
  print "domain: #{domain}"
  wordpress = built_with_wordpress?(domain)
  puts "\t wordpress? #{wordpress}\n\n"
  wp_count += 1 if wordpress
end

puts "#{wp_count} / #{count} recently visited domains use wordpress"