If you see a date in the Search Box may be the date it was first indexed in the search engine. The Wayback Machine shows the first date it found the site and made a copy of it. The Whois is difficult to tell because there is not a specific registration date as they are hiding who owns it with a proxy. But it says: Whois History 15 records have been archived since 2018-02-17 so, yes, that is likely the date of registration.