I have a website mysite.com, which had a subdomain which was very popular in Google:  abc.mysite.com. Due to a site redesign we had to consolidate the domains and the content of abc.mysite.com/* now started appearing in mysite.com/abc/*.After this change I am seeing sharp decline in SEO traffic. I have proper 301 redirects in place, but still the SEO is degrading by day.Any insights on why this may be happening?
SEO effect on retiring a subdomain
seo;subdomain