---
id: "ttl"
kind: "glossary-term"
title: "TTL"
language: "en"
category: "DNS and technical foundations"
updated: "2026-10-04T14:01:23Z"
canonical: "https://tldlog.com/glossary/ttl/"
translations:
  es: "https://tldlog.com/es/glosario/ttl/"
  de: "https://tldlog.com/de/glossar/ttl/"
  fr: "https://tldlog.com/fr/glossaire/ttl/"
  it: "https://tldlog.com/it/glossario/ttl/"
  pt-BR: "https://tldlog.com/pt/glossario/ttl/"
  ru: "https://tldlog.com/ru/glossariy/ttl/"
  zh-Hans: "https://tldlog.com/zh/cihui/ttl/"
---

# TTL

Time to Live

A number, in seconds, attached to each DNS record. It tells resolvers how long they may keep a saved copy before asking again. A long TTL means changes, such as moving a website, can take longer to reach all users.

## related terms

- [resolver](https://tldlog.com/glossary/resolver/)
- [zone file](https://tldlog.com/glossary/zone-file/)
- [DNS](https://tldlog.com/glossary/dns/)