Hi
You're welcome!
About "canonical", this paragraph may help. But the short story is:
- one issue most search engines have is if the same page can be accessed through multiple pages. For instance if:
https://www.example.com/some-article
https://example.com/some-article
https://example.com/some-article?fbclid=1693sdfdsfgdgdgfdjhgfdjhfd
https://www.example.com/blog/some-article
are all valid links, found somewhere on your site or on the internet, and they all display in fact the same page, then:
- search engines have to load and analyze them all, because they think they are different page (and they can't tell they are the same until they analyzed them all)
- the SEO "quality" signals (backlinks from other sites typically, but also content analysis) are split between different URLs, while in fact they relate to the same page
- they don't know which URL is the "desired" one
On small sites ( a few hundred pages maybe), they don't care too much, they have enough "power" to load all pages and see that they are the same. And so they pick one URL and decide it's going to be the main one. And they assign all quality signals to any of the pages to that main URL.
That main URL is called the "canonical URL" for that page, and the other pages in the same "cluster" are called "duplicates.
Now on larger sites, this is a bigger issue because:
- Google in particular may stop looking at (new) pages on your site if they think there's a chance they are duplicates of known pages, or just because you have a history of having duplicates. Of course this is an issue because they may miss some or a lot of your content. Or they may waste time on some useless content and not bother about your real, good, new content.
And so 4SEO has a feature where it detects that situation and adds specific metadata to your site pages, which tell search engines that page A is a canonical one and page B, C, D,... are duplicates of page A.
That way, Google knows which page it should analyze and rank, and which pages it should not.
Of course:
- 4SEO can get that wrong sometimes, so you can manually modify the choice 4SEO made
- Google may decide they don't care about this metadata (a "canonical" tag) and do whatever they want to do.
Best regards
Yannick Gaultier
https://weeblr.com