Oct 10
18
Posted by Dr. Pete Since Google released the Canonical Tag in early 2009, we’ve heard a similar SEO horror story replay itself. It boils down to this: “I accidentally canonicalized my entire site to one page, and my site was completely dropped from the index.” Although the evidence of rel-canonical going very wrong was overwhelming, I decided it was time to get some firsthand data in an effort to help people both avoid this problem and potentially fix it.
See the original post here:
Catastrophic Canonicalization