Amazon says its systems are back online again after connectivity issues persisted Monday. But reports of problems with Amazon’s cloud computing services unit AWS continue.

Amazon experienced a massive outage affecting its e-commerce platform, AWS, and Alexa, impacting numerous third-party services like Snapchat and Venmo. Engineers identified a DNS issue as the root cause and are deploying fixes.

Amazon Web Services suffered outages across the US, disrupting thousands of users & affecting key apps, deliveries, & streaming platforms.

Maybe we rely on Amazon Web Services a little too much. Dozens of sites and apps went dark this morning. Here's why.