How to generate Open Graph tags: a practical guide for any website
Adding Open Graph tags to a website takes about 5 minutes. You add 6-8 <meta> tags to the <head> of each page. The tags tell social platforms what title, description, and image to use when someone shares the URL. Without them, platforms guess, and the guess is usually wrong.
How this is calculated
The minimum viable OG tag set: og:title, og:description, og:image, og:url, og:type (usually 'website' for the homepage, 'article' for content), plus twitter:card set to 'summary_large_image'. In a plain HTML site, add <meta property='og:title' content='...'> to the <head>. In React, use react-helmet-async or the native Helmet component in React Router. In Next.js, use the Metadata API or generateMetadata. In WordPress, Yoast SEO and Rank Math both add OG tags automatically. For the og:image, host a 1200x630 JPEG at a stable URL, preferably on the same domain as the page to avoid cross-origin issues. After adding tags, validate with the Facebook Sharing Debugger.
Verdict
OG tags are the lowest-effort, highest-impact SEO improvement you can make. Five minutes of work makes every link shared from your site look professional instead of broken. Do it now, validate it, and never think about it again.