I have founded a website https://www.dmca.com/ in internet which claims to provide security from copyright infringement for my website contents.I have a website which is not copyrighted.
I want to know following three things:-

1) Does DMCA really provide security against copyright infringement or it is a fake website.

2) Is protection given by DMCA is legal/valid in India.

3) If I make my website protected from DMCA,then after that will it be legal for others to copyright my contents and publish it as a book in the market or do something else.