Typically when you or I leave your home for a period of time, especially a vacation, you lock the doors, set the alarm and try not to let people or spiders into your home. But that rule doesn’t have to apply to your web site.
John Mueller at Google posted a PSA, public service announcement, on Google+ saying you don’t need to do that. He said:
Of course, you can imagine the SEO community having a field day with this PSA. Here are some of the responses:
So feel free to leave the front door open, even when you are away.
Forum discussion at Google+.