How canonical tags can be used for back link?
Canonical tag : In general canonical tags are
used for avoiding duplicate content issues.
Canonical tag use :
If two or more pages in your site have similar content there may be possibility
of getting penalized by search engines for duplicate content issue, search
engines gets confused in deciding which page to be displayed in their SERP. In
that case you can use canonical tag for suggesting search engines about which
page to be displayed in their SERP.
Canonical tags are also mentioned as similar to a 301
redirect.
If canonical tags are similar to a 301 redirect, then they
will pass the link juice from the page which has the tag to its original (canonical
page).
Consider two domains uvw.com and xyz.com
Host the site in both domains. Both sites can have
similar content and similar pages.
Add canonical tag to every page of uvw.com.
For example:
Assume both sites have pages
Uvw.com
|
Uvw.com/page1
|
Xyz.com
|
Xyz.com/page1
|
Mention xyz.com as the canonical page in source code of
uvw.com
Mention xyz.com/page1 as the canonical page in source code
of uvw.com/page1
<link rel="canonical" href="xyz.com/page1">
This makes xyz.com as the original content and they will be
displayed in SERP and not the pages of uvw.com. Now the authority, page rank of
the domain uvw.com is gained by xyz.com
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