How do I clear history, cache and cookies on Safari 8 +?

Open Safari, Preferences, Privacy - Remove All Website Data clears the cache, and Bookmarks, Clear History removes the history.

Here's another way should be added, via computer wipe tools, is much easier. You can clear search history, cache, cookies and other junk data on Safari in one place. This also will make your data more security.

What can webmasters do to auto clear visitors iCloud cache so that they see the latest updates on our website