Site was available but now it isn't

my friend’s site is on http://comicduck.42web.io/

I see three ads that say “Related searches” and “Samsung, Tv, Sony” as relevant links

site was created today around 5-6 hours ago. at first it wasn’t available to me but my other friends could access the site normally. after a few hours I was also able to access it normally.

a few seconds ago when I tried to open the site normally again I got the “Samsung, Tv, Sony” ads again but my friends are still able to see the site. why is this happening?

Hello

It is working fine for me

Comic Goose

Hi, I know about the DNS caching but it was working a few hours ago and now it stopped working

Sometimes it can go in and out for the first 72 hours as things propagate throughout the internet.