HTACCESS:
It is a text file that get created by default when we host any website or when we buy domain name with webhosting space.
1. It helps in protecting the folder.
2. It helps in changing the file ext. or url renaming.
3. Banning the user according to their IP address.
4. Preventing the site from inclusion in directory list.
5. It uses an alternative index page for the website.
Canonical :
It mean if you want user type any of the following:
www.bestseoppc.blogspot.in
bestseoppc.blogspot.in
http://www.bestseoppc.blogspot.in
http://bestseoppc.blogspot.in
and your site will open, then it will resolve by Google webmaster tool.
We can also use this tag into head
<rel=”canonical” href=”http://www.bestseoppc.blogspot.in”/>
