Hello, I am wondering if there seems to be a preference for adding hreflang tags (from this article).  My client just changed their site from gTLDs to ccTLDs, and a few sites have taken a pretty big traffic hit.  One issue is definitely the amount of redirects to the page, but I am also going to work with the developer to add hreflang tags.  My question is - is it better to add them to the header of each page, or the site map, or both, or something else?  Any other thoughts are appreciated.  Our Australia site, which was at least findable using Australia Google before this relaunch, is not showing up, even when you search the company name directly. Thanks!Lauryn