link:www.domain.com & link:domain.com are showing different counts. My total backlinks as i see through these results should be total sum of the above queries. Is anyone facing similar issue? Also, when i check PR it is showing different numbers in accordance with the backlinks respectively. Any advice here??
domain.com/index.html and www.domain.com/index.html are different pages for google, as well as some other search engines, therefore links pointing to domain.com and www.domain.com are different things - that is why it is recommended to always link in the same way and configure your hosting to redirect domain.com to www.domain.com or vice versa through 301 redirect.
You'd better to instruct google and other search engines to index your website only with or without www, or it will dilute your backlinks and seo.
They are different domain thats why it shows different PR and backlinks. The http://www.domain.com is different from http://domain.com. Yes, use 301 redirect.
I think you should check at different Dc's use this tool http://link.ezer.com Also check at these Dc' 216.53.99.XX