Google’s John Mueller explained on Twitter twice the other day that every single URL Google has in their index automatically has a canonical URL assigned. John said “any URL that’s indexed implicitly has a canonical URL (which might be the same [URL]).”

There was a bit of confusion when John said in a webmaster hangout at the 54:56 mark that “If we don’t have a canonical page then we kind of drop that link because we don’t know from where to where it actually goes.” But that is almost impossible, because if the page is indexed, they automatically have a canonical URL assigned to it.

Here is the video embed:

Here is the transcript:

Here are the tweets with the confusion and clarifications:

Forum discussion at Twitter.