Although it is President Trump that has the slogan of "Keep America Great" — a reworking of his 2016 election slogan — the associated website is owned by Joe Biden's campaign.
Keepamericagreat.com features what it says is a list of Trump's broken promises and failures.
"Trump isn't looking for a second term – he's looking for a do-over," the site says.
The site, which sports several categories such as economy and jobs, immigration, foreign policy, and COVID-19, links to "what Trump promised" and "what actually happened" for each issue.
Biden tweeted out a link to the site on Thursday night, the last night of the Republican National Convention.
"You can buy all the domain names you want, but Joe Biden can't ever buy a way out of his 47 years' worth of failure in elected office," said Hogan Gidley, Trump campaign's national press secretary.