How do I shut down my own tor hidden service?

I configured a tor hidden service on my computer (Ubuntu Server) to do some tests. The site itself being on the same computer on a Apache2 web server.

When I turn down my computer, I can't access my onion domain from the tor browser anymore (this is normal...) but I can still access the site in a common web browser by typing "xxxxxxxx.onion.city".

How can it be possible and how can I turn off my site from the web (or deep web)

Thanks in advance!