The White House on Monday rolled out a new Web site designed to rebut charges leveled by opponents of President Barack Obama’s health care proposals.

The site, called “Reality Check,— is on the regular White House Web site at https://www.whitehouse.gov/realitycheck.

“A troubling trend has also emerged: as more people become engaged in the issue, defenders of the status quo have responded by muddying the waters with more wild rumors and scare tactics,— a White House official says in an online introduction to the Web site. “Moving forward, we’ll use this platform to provide you with the latest Reality Checks’ and tools to combat misinformation.—

The page is part of an intensifying White House campaign to counter claims against Obama’s proposals — and a sign of concern that the claims are sticking. Obama himself intends to spend August rebutting attacks on his initiative.

Opening day on the Web site includes a series of videos by senior White House officials taking on a variety of charges. White House Domestic Policy Council Director Melody Barnes “tackles a nasty rumor about euthanasia,— the Web site states, while others address concerns that Obama’s plans will harm small businesses, cause a raid on Medicare, destroy private insurance, and lead to rationing of care.