require 'ogextractor'

url = 'https://www.bbc.co.uk/news/uk-politics-56605598'
oge = OgExtractor.new(url)

oge.title #=> "Coronavirus: Dozens of MPs criticise 'divisive...
oge.description #=> "Ministers are accused of "creeping a...
oge.type  #=> "article" 
oge.image #=> "https://ichef.bbci.co.uk/news/1024/branded_news...
oge.url   #=> "https://www.bbc.com/news/uk-politics-56605598" 

oge.to_h

output:

{:card=>"summary_large_image",
 :title=>"Coronavirus: Dozens of MPs criticise 'divisive' Covid passports",
 :img=>"https://ichef.bbci.co.uk/news/1024/branded_news/BB4F/production/_117815974_063818791-1.jpg",
 :desc=>
  "Ministers are accused of "creeping authoritarianism" amid reports that the passports will be trialled.",
 :url=>"https://www.bbc.com/news/uk-politics-56605598"} 

• ogextractor https://rubygems.org/gems/ogextractor
• Open Graph protocol https://en.wikipedia.org/wiki/Facebook_Platform#Open_Graph_protocol
• About Twitter Cards https://developer.twitter.com/en/docs/twitter-for-websites/cards/overview/abouts-cards

ogextractor opengraph twitter metadata socialmedia parser extractor