---
title: "DNS propagation and TTL"
description: "Why DNS changes lag, how TTL affects rollout, and how to verify TXT records globally."
translationKey: "ts-dns-propagation"
tags: [dns, ttl, txt]
publishedAt: "2026-05-01"
lastReviewedAt: "2026-05-01"
indexable: true
faq:
  - question: "Why does my TXT record lag behind after an edit?"
    answer: "Resolvers cache prior answers until TTL expires, so global visibility shifts gradually even after authoritative DNS updates immediately."
  - question: "Should I lower TTL before a major DNS migration?"
    answer: "Temporarily reducing TTL helps receivers pick up new values sooner—plan the window with your DNS provider’s minimums and propagation constraints."
---
> **Canonical:** https://formreceipt.com/docs/troubleshooting/dns-propagation-waits

## TTL basics

Time-to-live defines how long resolvers cache answers. Lower TTL before large migrations if your DNS provider allows controlled updates.

## Checking globally

Use resolver tools that query authoritative servers and public caches—single-machine `dig` results can be misleading during propagation.

## Patience

Major receivers may cache longer than your nominal TTL during incidents—plan overlapping validation windows.