I have a site aroundnails.com. It has English version on subdomain
Reading about language related meta-tags for Google, I have placed such a meta tag on the main page of main site:
<link rel="alternate" hreflang="en" href="http://en.aroundnails.com/" />
By this way I have tried to say Google, that my site on
en.aroundnails.com is the english version of main site, not a duplicate.
After two days I have lost a huge part of traffic from Google, more than a half.
At the beginning of september I have moved this meta-tag, but traffic remained at the same level.
Hope somebody can help me to solve this issue.