Google provided an announcement to make clear their help for the cross-domain canonical hyperlink aspect (rel=”canonical”), stating limitations in how they use it, saying that they “strive” use the cross-domain canonicals whereas additionally stating the place it’s not really useful.
Google this week meant to concurrently publish updates to a number of pages with steering round cross-domain canonicals however as an alternative they have been revealed in a staggered method, which brought on confusion as as to if Google nonetheless supported cross-domain canonicals.
There are two modifications to make notice of.
1. Google clarified their steering on duplicate content material for information publishers who syndicate content material in Google Information.
That is the brand new content material added to the steering on what to do about syndicating content material:
“Tip: If you wish to keep away from duplication by syndication companions, the canonical hyperlink aspect just isn’t really useful as a result of syndicated articles are sometimes very completely different in total content material from authentic articles.
As an alternative, companions ought to use meta tags to dam the indexing of your content material.
Study extra concerning the canonical hyperlink aspect.
Keep away from duplication by yourself website
When you publish the identical article on a number of pages inside your individual website, you should use the rel=”canonical” hyperlink aspect.
Learn to specify a canonical.“
The replace doesn’t signify a change in coverage, it’s simply meant to make the steering clearer relating to find out how to keep away from duplication when syndicating content material.
2. Google additionally clarified the steering on content material that have to be blocked from Google information.
Particularly the change was made for publishers who republish the whole content material resembling from wire providers, in partnership with different publishers or from public area sources.
An important change was to take away the steering encouraging publishers to think about using the canonical.
The unique web page contained the next suggestion:
“Think about blocking or canonical for republished content material”
The up to date steering now suggests this:
“Think about blocking for republished content material”
Additionally, this half was modified to take away the suggestion to contemplate a canonical.
That is the unique suggestion (archive.org snapshot):
“Google Information additionally encourages people who republish materials to contemplate proactively blocking such content material or making use of canonical, in order that we will higher establish the unique content material and credit score it appropriately.”
And that is the up to date steering that’s now lacking the suggestion so as to add a canonical:
“Google Information additionally encourages republishers to contemplate proactively blocking this content material, so we will higher establish the unique content material and credit score it appropriately.”
It’s necessary to notice that the above pages are thought-about Steering and never an announcement of coverage.
That’s why the steering makes use of the phrase “contemplate,” which is completely different from recommending that publishers “should” do one thing.
Google provided Search Engine Journal the next assertion to make it clear that Google nonetheless helps the canonical hyperlink aspect.
They wrote within the e mail:
“We help the canonical hyperlink aspect, which is primarily designed to be used inside a website to self-identify what must be thought-about the canonical model of a web page when there could be duplicates or near-duplicates.
We additionally do attempt to help canonical throughout domains, however canonical just isn’t really useful for many who want to keep away from duplication by syndication companions, as a result of the pages are sometimes very completely different.
We’ve up to date a few of our steering about this to higher advise those that syndicate content material.”
Now it’s clear that Google nonetheless helps cross-domain canonical hyperlink parts.
In addition they make it clear that it’s not a really useful follow for publishers who wish to keep away from duplication from syndicating content material.