#Lose SEO benefits if server sided rendering data is used in client component?

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oak herald
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Will I Lose SEO benefits if I use server sided rendering data in client component?

twin domeBOT
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Hi @oak herald. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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Yes, using client-side data fetching can result in losing SEO benefits. Client-side data fetching is useful when your page doesn't require SEO indexing, when you don't need to pre-render your data, or when the content of your pages needs to update frequently. Unlike server-side rendering APIs, you can use client-side data fetching at the component level. However, it's important to note that using client-side data fetching can affect the performance of your application and the load speed of your pages (source (https://nextjs.org/docs/basic-features/data-fetching/client-side)).

To maintain SEO benefits, it's recommended to fetch data inside Server Components (https://beta.nextjs.org/docs/rendering/server-and-client-components) whenever possible, as they always fetch data on the server (source (https://beta.nextjs.org/docs/data-fetching/fundamentals#fetching-data-on-the-server-part-0)).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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oak herald
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That's not exactly what I meant @twin dome. I have a server component which fetches data, then that server component puts the data in a client component. Do I lose SEO benefits if I do that this way?

twin domeBOT
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Let me check the knowledge base for you. One moment! :books:

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Apologies for the confusion. If you fetch data in a Server Component and pass the data to a Client Component, you will not lose SEO benefits. When passing props from Server Components to Client Components, make sure the props are serializable (https://developer.mozilla.org/en-US/docs/Glossary/Serialization) (source (https://beta.nextjs.org/docs/rendering/server-and-client-components#passing-props-from-server-to-client-components)).

In the case of streaming and suspense, Next.js will wait for data fetching inside generateMetadata (https://beta.nextjs.org/docs/api-reference/metadata) to complete before streaming UI to the client. This guarantees the first part of a streamed response includes <head> tags. Since streaming is server-rendered, it does not impact SEO (source (https://beta.nextjs.org/docs/data-fetching/streaming-and-suspense#streaming-and-seo)).

So, as long as you fetch the data in a Server Component and pass it to a Client Component properly, you should not lose SEO benefits.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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The process whereby an object or data structure is translated into a format suitable for transfer over a network, or storage (e.g. in an array buffer or file format).

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