Yes you can, you can check from the site itself by going through their website or check the platform or forum on Chrome just go to the search box and type the name it will bring all you need to know about them
Follow along with the video below to see how to install our site as a web app on your home screen.
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you can also check outThe Wayback machine lets you "go back in time" and see what a website looked like a week ago, a month ago, or even years ago in the past. It can be accessed here - https://web.archive.org/
It actually depend on why one wants to really know the age of a site,because most of these search could be very difficult to find eapecially when the site has change the host to another.If you want to know about the age of any domain, you can look into who is data, but how do you actually find the age of any website. Well, you know how old is your website, but can you find age of websites that you don't own?