Know if website is reachable

Developers Ruby API
1

Hi again! :wink: Does anybody know if the Ruby API has a way of knowing if a specific page or domain is reachable (without opening it), preferabily in real time? Thanks in advance.

2

Something like:

require 'net/http'
require 'set'

def working_url?(url, max_redirects=6)
  response = nil
  seen = Set.new
  loop do
    url = URI.parse(url)
    break if seen.include?(url.to_s)
    break if seen.size > max_redirects
    seen.add(url.to_s)
    response = Net::HTTP.new(url.host, url.port).request_head(url.path)
    if response.kind_of?(Net::HTTPRedirection)
      url = response['location']
    else
      break
    end
  end
  response.kind_of?(Net::HTTPSuccess) && url.to_s
end
3

I suppose it returns true if site is reachable and false if it’s not… Thanks :wink:

4

Or super simple:

require 'open-uri'; begin; open('http://www.www.www') {} rescue '404; error'; end

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