Q & A DNS & Records · August 10, 2026

I can see the new value but my colleague in another country still sees the old one. Why?

Different users use different DNS resolvers (ISPs, Google, Cloudflare) each with their own cache. If your resolver’s cache expired and fetched the new value, you see it. Your colleague’s resolver may still have the old value cached. Wait for their resolver’s cache to expire. In the meantime, they can clear their local DNS cache or use a different resolver temporarily.

Read the full guide

Understanding DNS Propagation

You updated your DNS record — but your site still shows the old content. DNS propagation is why. Here's how resolvers cache records, how TTL controls the wait time, and how to verify your changes have propagated globally.