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require "nokogiri"
require "open-uri"
url = "https://blog.jxck.io/entries/2016-01-28/html-compression.html"
doc = Nokogiri::HTML(open(url))
doc.css('title').each do |title|
puts title.content
#=> HTML の省略によるサイズ最適化 | blog.jxck.io
end
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