---
id: 20260717-T0-05
title: "Vercel Runtime日志新增缓存原因，助你提升命中率"
title_en: "Vercel Runtime logs now show cache reasons to debug misses"
url: https://ai.daily.yangsir.net/daily/20260717-T0-05
issue_date: 2026-07-17
publish_date: 2026-07-17T01:00:00.000Z
category: release
source_name: "Vercel Blog"
source_url: https://vercel.com/changelog/runtime-logs-now-show-cache-reasons
---

# Vercel Runtime日志新增缓存原因，助你提升命中率

Vercel 在 Runtime 日志中新增了“缓存原因”字段，显示请求未命中缓存的具体原因，例如基于时间或标签的重新验证。开发者可以利用该信息调试缓存未命中问题，优化缓存策略并提升命中率。该功能适用于 CDN 可缓存的所有响应，包括 ISR 和 Partial Prerendering。

## English Version

**Vercel Runtime logs now show cache reasons to debug misses**

Vercel has added a 'cache reason' field to Runtime logs, explaining why a request missed the cache, such as time-based or tag-based revalidation. Developers can use this to debug cache misses and improve hit rates. It works for all CDN-cacheable responses, including ISR and Partial Prerendering.

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**来源**：[Vercel Blog](https://vercel.com/changelog/runtime-logs-now-show-cache-reasons)

**详情页**：https://ai.daily.yangsir.net/daily/20260717-T0-05

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