What happens to my Internet history?

My Internet history for my iPhone shows up to last week. It doesn't show dates after that. Where does the history from last month go? Does it get stored on the computer? Can my mom see it also?

It depends on the settings on the device, but the average device clears out history every three months.

If you wish to bypass history logging, simply press control+shift+P on your computer.

As for your iphone, go into settings and turn on private browsing under safari.