- Canonicalization
Canonicalization in SEO is the process of choosing one preferred URL when the same or very similar content is reachable under several URLs.
- Canonical tag
A canonical tag is a <link rel="canonical"> element in the <head> of a page that names the preferred URL when the same or very similar …
- Cross-domain canonical
A cross-domain canonical is a rel="canonical" link that points to a URL on a different domain.
- Duplicate content
Duplicate content is identical or very similar content that can be reached at more than one URL, either within one website or across …
- Index bloat
In SEO, index bloat means a website has many more URLs in a search engine's index than are useful for searchers.
- Near-duplicate content
Near-duplicate content is the SEO term (general usage, not a Google definition) for pages whose content is very similar to other pages …
- Self-referencing canonical
A self-referencing canonical is a rel="canonical" link whose target is the URL of the page it sits on.