Administration officials are preparing to announce Sunday that they have met their Saturday deadline for improving HealthCare.gov, according to government officials, in part by expanding the site’s capacity so that it can handle 50,000 users at once. But they have yet to meet all their internal goals for repairing the federal health-care site, and it will not become clear how many consumers it can accommodate until more people try to use it.

As of Friday night, federal officials and contractors had achieved two goals, according to government officials who spoke on the condition of anonymity in order to discuss ongoing operations. They had increased the system’s capacity and reduced errors. On the other hand, the site’s pages do not load as fast as they want, officials said, and they are working to ensure that large numbers of consumers can enter the site.

An official at the Centers for Medicare and Medicaid Services, the agency overseeing the federal health insurance exchange, said the site’s true capacity is somewhat murky because workers need to see how it performs under “weekday traffic volumes” when demand is at its peak.

Federal employees and information technology contractors were expected to work through the night Friday to try to reach one of the remaining targets: improving how many people per hour are able to register and log on to the site. An earlier attempt to make the fix failed several days ago.