What is canonical issues in Search engine optimization?

[TommyTommy]

What is canonical issues in Search engine optimization and how to resolve it?

[kumarsatish]

A canonical issue arises once 301 redirects aren't properly in situ. this implies that your web site are often accessed by search engines from many completely different URLs. this implies that search engines will then probably index your web site below completely different URLs, that means that it'll seem like a web site of duplicated content

[anneroberts]

Canonicalization refers to individual web pages that can be loaded from multiple URLs. This is a problem because when multiple pages have the same content but different URLs, links that are intended to go to the same page get split up among multiple URLs.