How canonical url harm our website???

[MadhukarSV]

Even though my website has no similar/copied content, i used rel=canonical for all my website pages. Is Google or yahoo make any harm to my SERP's??

EX: http://www.seomoz.org is my site, in that i used canonical as

rel="<a class="attribute-value">canonical</a>" href="http://www.seomoz.org" to my home page
like that similar to all pages, i created rel=canonical. Is search engine harm my website???

[MagicDude4Eva]

Are you saying that all your pages have a canoncial pointing to your home-page? If so, then this is not good. Having distinct canonicals for different content is fine.

If you feel that some pages should not be crawled/indexed then rather use noindex/nofollow instead of pointing the canoncial to some other page.

[MadhukarSV]

rel="<a class="external" rel="nofollow" target="_blank">canonical</a>" href="http://www.seomoz.org" to my home page
like that similar to all pages, like that i created rel=canonical to all my pages ```
rel="<a class="external" rel="nofollow" target="_blank">canonical</a>" href="http://www.seomoz.org/about-us.php" to about us.... like that for every page