Throttly is a network link conditioner tool for Android.

With throttly you can simulate various network conditions including bandwidth throttling high latency DNS delays and so on. There are several build-in profiles you can choose:
• Edge
• 3G
• 4G
• Wi-Fi
• High Latency DNS
Or create your own according to your requirements.
Throttly also record all DNS queries you can review DNS queries through Settings->DNS Records.