The most important technical SEO elements in a Next.js project: metadata, canonicals, sitemap, robots, OG, performance, and indexing.
In short
The most important technical SEO elements in a Next.js project: metadata, canonicals, sitemap, robots, OG, performance, and indexing.
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Next.js gives a strong foundation for SEO, but the framework alone is not enough. Before launch, each important page needs correct metadata, indexable URLs, and a structure that search engines can understand.
Every key page should have a unique title, description, and canonical URL. The title should connect the topic with user intent, while the description should explain the value of the page. Canonicals help avoid duplicate URL issues.
The sitemap should include public pages, services, blog posts, and categories that should be indexed. Robots rules should not accidentally block important routes. It is also worth checking that staging environments are not confused with production.
Open Graph controls how links look in social platforms, while JSON-LD helps search engines understand the type of content. For blog posts, use BlogPosting. For services, use Service or a clearly described business page.
Technical SEO also means speed. Large images, unnecessary JavaScript, and heavy components can reduce page quality. Check LCP, CLS, image sizes, and whether important content appears quickly.