overnight, tech experts took parts of healthcare.gov down for maintenance. it is back up now. let s go to cnn s jill dougherty at the white house. good morning, jill. allison, george, the administration is confident that the website can handle a steady stream of roughly 50,000 customers at a time. but hhs secretary kathleen sebelius is urging people to shop healthcare.gov during off-peak hours. mornings, nights, weekends, the concern, not overwhelming the site. reporter: withering criticism of the rollout of healthcare.gov is intensifying the administration to get this fix right for saturday. the white house hopes it can do that, at least for the vast majority of users. and this website is going to get fixeded. reporter: healthcare.gov open for business october 1st and it s been a disastrous two months. the site crashed unable to cope