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Stack Overflow for Teams is moving to its own domain! When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com.
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From the link that quid usefully provided in another answer:
The analytics key had not been entered for stackexchange.com. The next build will include this and report the correct stats. It should be live within the next few hours.