You can delete cache and cookies from Safari on your iPhone, iPad, and iPod touch by using these instructions:

iPhone

1 - Tap the Settings icon the on home screen.

2 - Tap Safari.

3 - Tap App.

4 - Scroll all the way down.

5 - Tap Clear History and Website Data.

6 - Tap Clear.

iPad

1 - Tap the Settings icon the on home screen.

2 - Tap Safari.

3 - Scroll all the way down.

4 - Tap Clear History and Website Data.

5 - Tap Clear.

iPod touch

1 -Open the Settings app on your iPod touch.

2 - Scroll down and tap Safari.

3 - Scroll down to the Privacy & Security section.

4 - Tap Clear History and Website Data.

5 - Confirm by tapping Clear History and Data.