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abhishek77in/cname_check.rb

Forked from Maysora/cname_check.rb
Last active September 23, 2022 18:04
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Ruby DNS CNAME check
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cname_check.rb
require 'resolv'
url = 'www.diagnofy.in'
begin
r = Resolv::DNS.open do |dns|
dns.timeouts = 1
dns.getresource(url, Resolv::DNS::Resource::IN::CNAME)
end
r.name.to_s # => return alias domain
rescue Resolv::ResolvError => e
# handle error
end
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