--- id: head-metadatas title: Head Metadatas description: Declaring page-specific head metadatas through MDX slug: /markdown-features/head-metadatas --- # Head Metadatas Docusaurus automatically sets useful page metadatas in ``, `` and `` for you. It is possible to add extra metadatas (or override existing ones) by using the `` tag in Markdown files: ```md title="markdown-features-head-metadatas.mdx" --- id: head-metadatas title: Head Metadatas --- Head Metadatas customized title! # Head Metadatas My text ``` ```mdx-code-block Head Metadatas customized title! ``` :::tip This `` declaration has been added to the current Markdown doc, as a demo. Open your browser DevTools and check how this page's metadatas have been affected. ::: :::note This feature is built on top of the Docusaurus [``](./../../docusaurus-core.md#head) component. Refer to [react-helmet](https://github.com/nfl/react-helmet) for exhaustive documentation. :::