Alexa Rank - Retrieves the Alexa rank for domain(s)

alexa-rank.rb

#!/usr/bin/env ruby
# Alexa Rank
#   Retrieves the Alexa rank for domain(s)
#   2011-09-19 # [email protected]
##

verbose = true
version = "0.1"

# Usage
if ARGV.size == 0
	puts "[*] Alexa Rank v" + version
	puts "[*] Usage: #{$0} example.com"
	exit 1
end


# Load gems
%w|net/http rexml/document|.each do |gem|
	begin
		require gem
	rescue LoadError
		puts "[-] " + gem + " is require"
		exit 1
	end
end


# Get page rank from Alexa
def get_alexa_rank(url)
	r={}
	if url =~ /^(https?:\/\/)?([a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5})/i
		begin
			domain = "#{$2}"
			xml = Net::HTTP.get_response(URI.parse("http://data.alexa.com/data?cli=10&url="+domain)).body
			rank = REXML::Document.new(xml).elements['ALEXA/SD/POPULARITY'].attributes['TEXT'].gsub(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1,")
			r = { :domain=>domain, :rank=>rank }
		rescue
		end
	end
	r
end


# Display page rank(s) for domain(s)
ARGV.each do|domain|
	puts "[*] Fetching page rank for " + domain if verbose
	r = get_alexa_rank(domain)
	if r.empty?
		puts "[-] "+domain+" is not ranked with Alexa" if verbose
	else
		puts "[+] "+r[:domain]+" is ranked "+r[:rank] if verbose
		puts r[:domain] +" " + r[:rank] if !verbose
	end
end

Example output

With verbose = true

$ ./alexa-rank.rb
[*] Alexa Rank v0.1
[*] Usage: ./alexa-rank.rb example.com

$ ./alexa-rank.rb example.com
[*] Fetching page rank for example.com
[+] example.com is ranked 57,959

With verbose = false

$ ./alexa-rank.rb example.com
example.com 57,959