Overview
You can clear the DNS cache on both Apple (iOS) and Android devices. On an iPhone, toggle Airplane mode or reboot the device; on Android, flush the DNS cache using a browser such as Chrome.
Apple (iOS)
To flush your DNS cache:
Option 1 — Toggling Airplane mode
The easiest solution is to toggle Airplane mode on and off.
- Tap Settings.
- Scroll to Airplane Mode and tap to toggle it on.
- Tap it again to toggle it off.
Option 2 — Rebooting your device
Rebooting your iPhone should also clear out your DNS.
Android
Android does not offer a way to clear the system's DNS cache within the device. However, you are able to flush the DNS cache using a browser such as Chrome:
How do I flush the DNS cache in Chrome?
- Open Chrome.
- In the URL bar, type in chrome://net-internals/#dns:
- In the left pane, select DNS.
- In the right pane, tap the Clear host cache button.