---
title: How long does it take for a block or unblock to take effect in Lumiun DNS?
description: Understand how changes are applied and what can influence user perception.
---

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# How long does it take for a block or unblock to take effect in Lumiun DNS?

## Understand how changes are applied and what can influence user perception.

Neste artigo, explicamos o comportamento após ajustar bloqueios, liberações ou filtros no Lumiun DNS e como validar as alterações no dia a dia.

---

When blocking or allowing a domain, or enabling/disabling a Lumiun DNS filter, the new configuration takes effect in DNS responses within **3 minutes**. This applies to **new queries** made after the change.

If a domain has been resolved before, browser, operating system, application, or network equipment **caches** may retain the old response until the **TTL** expires, making it appear that the rule has not yet taken effect.

### What influences the visibility of change

- Browser cache.
- Operating system cache and apps that perform their own resolution.
- Network cache on routers, firewalls, proxies, or local resolvers.
- TTL previously obtained for the domain.

---

### How to accelerate the perception of change

- Open an **incognito/private** tab and try again.
- Clear your browser **cache** and reload (Ctrl/Cmd + F5).
- **Close and reopen the application** (when testing is not via a browser).

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