What SEO meta tags actually are
SEO meta tags are short HTML snippets that sit in the of a page and describe it to machines — search engines, chat assistants, and social platforms. A human never sees them on the page itself, but they shape what shows up in a search result or a shared link preview.
The three you will meet most often are the title tag, the meta description, and Open Graph tags. They are small, but they are the first thing a crawler or a scraper reads about your page.
The three tags you should know
- Title tag (
) — the clickable headline in a search result and the label in a browser tab. Keep it focused and under about 60 characters so it is not truncated. - Meta description (
) — the short summary under the title in search results. Google's documentation states it is not a direct ranking factor, but a clear description can help the snippet match what a searcher wants. - Open Graph tags (
og:title,og:description,og:image) — control how your link looks when shared on social platforms. Twitter card tags do the same for X.
Why length limits matter
Search engines and social cards both truncate long strings. A title over ~60 characters may be cut off with an ellipsis; a meta description over ~155 characters may be clipped in the result. Getting the length right means the part you wrote is the part people actually see.
SEOMeta takes your page title, description, and keywords and returns a title kept at or under 60 characters, a meta description at or under 155, plus Open Graph and Twitter card tags — formatted as copy-ready HTML.
Where to read more
- Google Search Central — SEO starter guide: https://developers.google.com/search/docs/fundamentals/seo-starter-guide
- Open Graph protocol: https://ogp.me/
- Google — title link best practices: https://developers.google.com/search/docs/appearance/title-link