---
id: "negative-caching"
kind: "glossary-term"
title: "否定缓存"
language: "zh-Hans"
category: "DNS与技术基础"
updated: "2026-10-10T12:00:00Z"
canonical: "https://tldlog.com/zh/cihui/fouding-huancun/"
translations:
  en: "https://tldlog.com/glossary/negative-caching/"
  es: "https://tldlog.com/es/glosario/almacenamiento-cache-respuestas-negativas/"
  de: "https://tldlog.com/de/glossar/negative-caching/"
  fr: "https://tldlog.com/fr/glossaire/mise-cache-negative/"
  it: "https://tldlog.com/it/glossario/caching-negativo/"
  pt-BR: "https://tldlog.com/pt/glossario/cache-negativo/"
  ru: "https://tldlog.com/ru/glossariy/negativnoe-keshirovanie/"
---

# 否定缓存

保存某个名称或记录不存在这一事实，以免重复同样的失败查询。保存时长由该区SOA记录中的数值决定。因此，如果有人过早查询了新创建的名称，该名称可能在一段时间内显示为不存在。

## 相关术语

- [DNS缓存](https://tldlog.com/zh/cihui/dns-huancun/)
- [NXDOMAIN](https://tldlog.com/zh/cihui/nxdomain/)
- [SOA记录](https://tldlog.com/zh/cihui/soa-jilu/)
- [TTL](https://tldlog.com/zh/cihui/ttl/)
- [DNS传播](https://tldlog.com/zh/cihui/dns-chuanbo/)