Home page can mean a few different things, depending on the context.
When you snag the home button, theURLyou pre-chose opens just like any other bookmark.
A web app can be configured to open a specific set of pages when it first opens.

A Website’s Home Page
The main page of a website is also called its home page.
This is considered the starting point, or welcome page for the site.
This home page is usually whatever is closest to the domain name in the URL.

The same is true for other sites, such asApple.com.
There are numerous pages on that website, but they’re not considered the home page.
Some websites have multiple versions of the home page to accommodate different languages or devices.

Another way is to erase everything in the address bar except for the domain name.
What this normally means is that they’ve designated a specific website or web page as their online presence.
A personal home page could be a blog, social media profile, or something else.
In the Safari online window, go toEdit>Preferences(Windows) orSafari>Preferences(Mac).
Next, selectGeneral, then go to the Home Page text box and enter theweb addressyou want.
Toset your home page in Firefox, tap theMenuicon (three lines) >controls>Home.