Two weeks back I modified the structure of my website and implemented over 200 sub-domains for different countries and sections.
Initially, everything went OK but since last 3-4 days crawling of my website is reduced drastically by Google. Not just crawl, website traffic also effected 30-40% with compare to last week.
I checked everything like robots.txt, fetch by google but no clue has been found so far.
What can be the possible reasons for this problem?