Opengraph metacrap
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<!DOCTYPE html><html lang="en"><head><title></title><meta charset="utf-8" /><meta name="viewport" content="width=device-width, initial-scale=1" /><meta name="author" content="" /><meta name="description" content="" /><!-― facebook open graph tags --><meta property="og:type" content="website" /><meta property="og:url" content="" /><meta property="og:title" content="" /><meta property="og:description" content="" /><meta property="og:image" content="" /><!-― twitter card tags additive with the og: tags --><meta name="twitter:card" content="summary_large_image" /><meta name="twitter:domain" value="" /><meta name="twitter:title" value="" /><meta name="twitter:description" value="" /><meta name="twitter:image" content="" /><meta name="twitter:url" value="" /><meta name="twitter:label1" value="" /><meta name="twitter:data1" value="" /><meta name="twitter:label2" value="" /><meta name="twitter:data2" value="" /><link href="style.css" rel="stylesheet" /><link rel="icon" type="image/svg+xml" href="/favicon.svg" /></head></html>
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Metatags.io
Metatags.io is a very useful service to validate your metatags but also to generate the code needed for them too.