Open Graph Meta Tags
In one line
Open Graph meta tags are the Facebook-originated tag set that has become a de facto standard for defining how a page looks when shared on social platforms or messengers.
Going deeper
Open Graph tags use the form <meta property="og:title">, og:description, og:image and similar. Facebook, X, LinkedIn, KakaoTalk and most other share surfaces read them to build their preview cards.
OG tags aren't a direct ranking signal, but they drive social CTR — which feeds traffic and ultimately backlinks. Many sites just reuse the meta description; writing a more share-optimised copy separately tends to pay off.
Images work best at 1200×630, with text large enough to read at thumbnail size. Twitter still prefers its own twitter:* tags, so most teams ship both sets side by side.
Sources
Related terms
Meta Description
The meta description is the short page summary shown below the title in search results — not a direct ranking factor, but a major lever on click-through rate.
SEOTitle Tag
The title tag is the HTML element that defines a page's title — the blue link text shown in search results and one of the strongest on-page ranking signals you can control.
MarketingCTR
Click-through rate (CTR) is the share of impressions that resulted in a click — the most basic measure of how compelling an ad, link or search result is.
SEOSchema.org
Schema.org is the shared vocabulary co-sponsored by Google, Microsoft, Yahoo and Yandex that lets you label what each page means so search engines and AI can understand it.
SEOAlt Text
Alt text is the text alternative for an image — used when the image can't render and read aloud by screen readers — and it affects both accessibility and image search visibility.