Everyone.  Please add sensible canonicals.
- Especially if you have a 'enable SSL' bit.
- or if you have content that spans multiple domains
- or if you respond to /foo and /foo/ without a 301 redirect on one of them.

I've noticed two canonicalization issues (project hosting and sites) in the past few days.  I'm guessing there are many more out there..


http://support.google.com/webmasters/bin/answer.py?hl=en&answer=139394&ctx=plusone

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