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adding head metadata to pages in next.js: a comprehensive guide

metadata is crucial for seo, accessibility, and a better user experience. it provides information about your web pages to search engines, social media platforms, and browsers. in next.js, you can efficiently manage your head metadata using the built-in `head` component and server-side rendering (ssr) approaches.

this tutorial will cover various aspects of adding and managing metadata in next.js, including:

1. *the `head` component:* understanding its role and basic usage.
2. *setting common metadata:* title, description, keywords, viewport.
3. *dynamic metadata:* generating metadata based on data fetched from an api or database.
4. *seo optimization:* best practices for creating effective metadata.
5. *open graph (og) and twitter card metadata:* enhancing social sharing.
6. *alternative metadata options:* exploring `next-seo` and other libraries.
7. *localization with metadata:* managing translations for metadata.
8. *best practices and common pitfalls*
9. *code examples:* demonstrating practical implementation.

*1. the `head` component*

next.js provides a built-in `head` component, imported from `next/head`, that allows you to add, modify, or replace the content of the `head` element of your html document. this component is a wrapper around the standard html `head` tag and makes it easy to manage metadata.

*basic usage:*



*explanation:*

**`import head from 'next/head';`**: imports the necessary component.
**`head` component**: encloses the metadata tags. anything inside this component will be added to the `head` of the rendered html.
**`title`**: sets the page title, which appears in the browser tab or window title bar. crucial for seo.
**`meta name="description" ... /`**: provides a short summary of the page's content. used by search engines in search results snippets.
**`link rel="icon" href="/favicon.ico" / ...

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