Canonical is a term that comes from the Roman Catholic tradition where a list of holy books was created and considered authentic. They are called the canonical gospels of the New Testament. Ironically, it took the Roman Catholic Church about 300 years and countless struggles to come up with this canonical list, and they ultimately settled on four versions of the same story.
Identifying Duplicate Content Issues
You may not know if you have a duplicate content problem on your site or content. Using Google is one of the easiest ways to discover duplicate content.
There are several search operators that are very useful kazakhstan mobile database in situations like this. If you want to find all the URLs of articles on your site that contain keyword X, you can enter the following search phrase into Google:
site:exampleom intitle:
Google will then show you all the pages on exampleom that contain that keyword. intitleThe more specific you make that part of your query, the easier it will be to weed out duplicate content. You can use the same method to identify duplicate content across the web. Let’s say the full title of your article is “Keyword X – Why It’s Awesome,” you would search for:
intitle
Google will give you all the sites that match that title. Sometimes it's even worth searching for a full sentence or two from your article, as some crawlers may change the title. In some cases, when you do a search like this, Google may display a notice like this on the last page of results:
This suggests that Google is already “de-duplicating” the results. It’s still not good, so it’s worth clicking the link and looking at all the other results to see if you can fix some of them.