What is a canonical tag?
A canonical tag is a process to tell the search engine that a specific URL shows the original copy of the page. You will not face any problem regarding identical or duplicate content on multiple URLs through canonical tags. It means that you tell search engines which URLs you want to show in the search result in simpler terms.
Why is canonical tag implementation necessary?
Duplicate or identical content is a complicated subject, and when it comes to duplicate URLs with similar content in the search engine, it causes many SEO problems. Suppose, if the crawlers have to find content through many duplicate URLs, your unique content may be missed by crawlers. The other reason for its importance is that too many duplicate URLs may affect your search engine’s ranking. In this situation, canonical tags help you to control duplicate content.
Important points to consider during canonical tags
- Proactively canonicalize your homepage
- Do spot-checking for your dynamical canonical tags.
- Avoid mixed signals
- Canonicalize cross-domain duplicates
How to Audit Canonical Tags for SEO?
When you are auditing your canonical tags, you need to consider some essential things for SEO-optimized performance. See the checklist given below:
- Does the page have canonical tags?
- Are you pointing canonical tags to the right page?
- Are the pages crawlable and indexable?
Common ways to audit and inspect canonical tags
- View Source
- Use the MozBar (free SEO toolbar to see canonical tags on the pages)
- Go for Software Solutions to audit in bulk.