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HI Anna, Generally speaking, Google is pretty good at indexing only the / version of a homepage. But if you're having problems with them indexing both, you can use a canonical tag on the homepage to solve this. For more information on this, check out Moz's guide to canonicals. From a traffic measurement perspective, you can configure Google Analytics to associate metrics from both URLs with only the / version. Simply go to your filters and create a new custom filter. Select 'search and replace' and set search string as /index.html and replace string as /. Hope that's helpful!