FILE - Youngstown City Health Department worker Faith Terreri grabs two at-home COVID-19 test kits to be handed out during a distribution event, Dec. 30, 2021, in Youngstown, Ohio. The Biden administration on Tuesday quietly launched its website for Americans to request free at-home COVID-19 tests, a day before the site was scheduled to launch.The website, COVIDTests.gov, now includes a link for Americans to an order form run by the U.S. Postal Service where Americans can request four at-home tests per residential address. (AP Photo/David Dermer, File)

(CNN) — The federal government has quietly launched its website to sign up for free Covid-19 tests, allowing people to order a maximum of four tests shipped directly to their household.

Given the formal launch wasn’t expected until Wednesday, a White House official said this is only the beta phase to ensure the site works seamlessly.

“In alignment with website launch best practices, covidtests.gov is currently in its beta phase, which means that the website is operating at limited capacity ahead of its official launch,” a White House official told CNN. “This is standard practice to address troubleshooting and ensure as smooth of an official launch tomorrow as possible. We expect the website to officially launch mid-morning tomorrow.”

Though the official said the site was only operating at a limited capacity, it’s unclear how the initial phase of the site is limited. Once shipping information was entered online, the site instructed people that tests would begin shipping in “late January” and the United States Postal Service, which is handling the deliveries, “will only send one set of 4 free at-home COVID-19 tests to valid residential addresses.”