---
title: "ISR Observability: Framework Discrepancies"
description: Understanding ISR Observability with Different Frameworks
url: /kb/guide/isr-observability-framework-discrepancies
canonical_url: "https://vercel.com/kb/guide/isr-observability-framework-discrepancies"
published: 2025-11-03
last_updated: 2025-11-10
authors: Zach Hudson
related:
  - /docs/build-output-api/v3
install_vercel_plugin: npx plugins add vercel/vercel-plugin
---
<!-- docsgraph:related -->
## Related pages

> **For AI agents:** Follow these links to understand how this page connects to the rest of the Vercel ecosystem. For the full cross-link map (inbound, outbound, prerequisites, and semantic neighbors), see the .graph.md link below.

- [Overview](https://vercel.com/docs/observability?from=related) — Observability on Vercel provides framework-aware insights enabling you to optimize infrastructure and application perfor
- [Getting Started](https://vercel.com/docs/incremental-static-regeneration/quickstart?from=related) — Learn how to set up Incremental Static Regeneration \(ISR\) with time-based and on-demand revalidation.
- [Supported Frameworks](https://vercel.com/docs/frameworks?from=related) — Vercel supports a wide range of the most popular frameworks, optimizing how your application builds and runs no matter w
- [Insights](https://vercel.com/docs/observability/insights?from=related) — List of available data sources that you can view and monitor with Observability on Vercel.
- [Full-stack](https://vercel.com/docs/frameworks/full-stack?from=related) — Vercel supports a wide range of the most popular backend frameworks, optimizing how your application builds and runs no
- [How to reduce ISR revalidation costs](https://vercel.com/kb/guide/how-to-reduce-isr-revalidation-costs?from=related) — Reduce ISR costs by analyzing Incremental Static Regeneration \(ISR\) behavior to find pages and tags that revalidate to
- [Investigate latency issues and slowness on Vercel](https://vercel.com/kb/guide/investigate-latency-issues-and-slowness?from=related) — Learn how to use Observability to investigate latency issues and slowness on Vercel.

Full cross-link map for this page: [/kb/guide/isr-observability-framework-discrepancies.graph.md](/kb/guide/isr-observability-framework-discrepancies.graph.md)
<!-- /docsgraph:related -->


The Observability tab is a powerful tool for reviewing and diagnosing ISR-related usage. For example, when using Next.js, you can view all paths and see detailed metrics on reads and writes:

However, different frameworks interact with ISR in uniquely, which may affect the level of information displayed in the Observability tab. For example, Nuxt.js only uses a single nitro function, so Vercel can only display this on the dashboard.

To enable full ISR Observability across frameworks, framework developers can integrate the [Vercel Build Output API](https://vercel.com/docs/build-output-api/v3). If your framework doesn't yet support this functionality, consider reaching out to the framework's maintainers to request this enhancement. Collaboration between framework developers and the community can help ensure everyone benefits from more comprehensive observability features.