Simple website checker; compares the site's URL against a known string

verify.rb

#!/usr/bin/ruby

require "open-uri"
require "nokogiri"

NUM_HITS = 50

def _request(url)
  begin
    open(url, :read_timeout => 5).read
  rescue => e
    nil
  end
end

def query(url, comparable)
  puts "Checking #{url}..."

  errors = 0
  timeouts = 0

  for i in NUM_HITS.downto(0)
    begin
      resp = _request(url)
      html = Nokogiri::HTML(resp)
      title = html.css("title").text

      errors += 1 unless (title == comparable)
      timeouts += 1 if resp.nil?
    rescue Interrupt
      puts "Quit early"
      exit(1)
    end
  end

  puts " - Error ratio: #{errors} / #{NUM_HITS - timeouts} (#{(errors.to_f/NUM_HITS.to_f).to_f * 100}%)"

  if timeouts == 1
    puts " - 1 request timed out"
  elsif timeouts > 1
    puts " - #{timeouts} requests timed out"
  end
end

if !ARGV.empty?
  query(ARGV[0], ARGV[1])
else
  puts "Missing some args"
  puts " - First arg: The URL you want to test"
  puts " - Second arg: The page title you want to check"
  puts "Usage:"
  puts "./verify https://example.com \"Example Domain\""
end