Free data on internet (briths, deaths etc)

Is there any website that can show me data about families, births deaths, marriages and whatever information free without login on internet?

This is the only I found on internet about 1940.

https://www.archives.com/1940-census/elaine-everhart-va-7155577?Fir...

I don't know the main page, therefore I find data beginning on that name.

I would like to know if there is anyone else for other years, or any other that is usefull at Geni.com.

I have many nationalities in my trees (6,000) . I am mainly interested in countries like USA, UK and Australia (more easier I think ) and also Norway, Hungary and Greece.