Our site has taken a significant dip recently in daily visitors. It happened almost overnight in fact. I'v elooked in Webmaster tools and we have some 'Site Errors', listing DNS, Server Connectivity and Robots.txt Fetch:
. DNS - couldn't communicate with the DNS server
. Server connectivity - Request timed out or site is blocking Google
. Robots.txt Fetch - Crawl postponed bexcause robots.txt was inaccessible
This is odd because I can reach the robots file with no issues at all. The line graph associated with each also shows no errors. What's the problem here?
Any help appreciated.