Hello friends,

How to protect My website against copying..?

-- Include the copyright symbol on all pages of your website.
-- Use Copyscape a duplicate content checker to search the internet for copies of your web or blog pages.
-- If you have a WordPress site try a plug in called WP-Copyprotect.

there are no method to stop copied content from website you can just disabled right click and in java script disable right click also so normally user not able to copy content

You can use Copyscape for check duplicate content.