Comparing revalidateTag vs revalidatePath for Next.js data revalidation

Context

Hi everyone,

I wanted to get your perspective on choosing between API-level (tag-based) revalidation and page-level revalidation in a production application.

In our use case (a marketplace-style application), multiple pages consume shared data such as:

  • Property details
  • Related properties
  • Agent information
  • Location data
  • Reviews

Revalidation Strategies

We are evaluating whether it is better to:

  1. Use revalidateTag() to invalidate specific cached data (API-level revalidation).
  2. Use revalidatePath() to invalidate entire pages (page-level revalidation).

Architectural Considerations

  • API-level revalidation: revalidateTag() seems more granular and efficient, as it refreshes only the affected data and avoids unnecessary full-page rebuilds.
  • Page-level revalidation: revalidatePath() is simpler but may cause all data-fetching logic within a route to execute again, even if only a small section changed.

In a high-traffic, data-heavy application, would you recommend prioritizing tag-based revalidation for scalability and cost efficiency?
Are there specific scenarios where page-level revalidation would still be preferable?

Looking forward to your guidance.