The main difference is that Server Components render all of your HTML on the server, so when someone visits your page, the post data is already in the delivered HTML. That makes it more SEO-friendly because search engines can see the full content right away.

On the other hand, Client Components fetch data in the browser once the page is loaded, which can delay when crawlers get the actual post content (though modern crawlers can often handle JavaScript).

When to use each approach?

Server Components (SSR): If your content can be pre-rendered and SEO is important. The server handles data fetching and returns ready-to-index HTML.

Client Components: If you need to fetch data based on user interactions or real-time updates. This approach is more flexible for dynamic or highly interactive applications, but you may sacrifice some immediate SEO benefits.