Can a website disappear from the browsing history in the browser?

Question

Google Chrome

I am using Macbook Mac OS.
Googled some stuff today.
I went through one link and a warning window popped up, and I automatically clicked either OK or confirm.
Then he began to get paranoid that he opened a malicious site and immediately closed it.
I started looking for it in the history of visits.
As a result, all sites seem to be normal.
There is only one, which also pops up a warning window to open the old version of the site.
Now I can’t understand either:
1) The site somehow disappeared from history.
2) If you once confirmed the opening of a dangerous site, then perhaps this window does not appear later? Or does it show up every time? I'm just thinking maybe I didn't find the right "dangerous" site, because. All links open without any problems and warnings.
3) Perhaps it was a warning window about the old version of the site.
I would like to ask those who know about this. Should I, as a Mac user, be concerned about anything?

Answer 1

Should I, as a Mac user, be concerned about anything?

No.
Most likely the "Subscribe to our notifications" window popped up.