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Hi chris There can be a number of different types of migration. If you are talking about a migration from http to https then it is likely that both versions of the pages will persist for a while until Google reindexes everything. Whatever you can check what is being indexed by performing a site search as follows. Do a site search in Google - site:yourdomain(no http or https) inurl:http://  and see how many of the old pages are left, If this is splitting out content to other country base subfolders then teh same thing can apply. It is quite common to see a temporary drop and it can take a while for all pages to be indexed properly. You can try fetching Google (in search console) but in my experience, it is just a matter of time before things start to bounce back upwards. Just check that you have the appropriate 301 redirects set up in your htaccess file, that you have set up the preferred domain in search console and that the appropriate hreflang tags are set up on the site to point to the different country and language combinations, to avoid any duplication issues. https://support.google.com/webmasters/answer/189077?hl=en I hope this helps Regards Nigel

Thank you very much!