https://www.cnet.com/news/despite-glitches-amazon-prime-day-2018-manages-another-record/

When Amazon launched its much-hyped Prime Day sale Monday, it was left in the unenviable position of offering a broken website and app that redirected customers to pictures of dogs on its error pages. For many customers, problems persisted well into that night.

While it was likely the most botched opening in the sale's four years, the screw-up didn't change the expected final outcome: a third record sale in a row. Amazon said Wednesday that this year's Prime Day surpassed all prior sales records in the e-commerce giant's two-decade history, including Black Friday and Cyber Monday, when compared against other 36-hour periods (the sale this year was a day and a half).