We were fortunate, so I'm very curious to learn from others: How were you affected affected, and what are you planning to change? Infrastructure teams, what did you learn? Mobile teams, are you changing the way your use DNS or services behind it?
For our websites we use our own DNS servers and have them replicated across different ISPs.<p>Going forward, we might replicate it to a third party too, maybe a cloud provider. That way if our IP ranges get DDoS'd, we can force a change to another company.