Hello, Now I working on http://clickitbookit.travel/ If I open this site with " www " its show pr0 and If I open this site without " www " its show pr3. Please anyone tell me the main resion for this and how I got the same pr in including www.
The reason that your website is showing different PR is because of the fact that you have not done canonical optimization of your website. Google treats example[.]com and www[.]example[.]com as two different websites. Just google canonical optimization and you will find plenty of info about it.
you can go to webmaster tools & specify site with "www" as your preferred domain, also do 301 redirect to site with "www"