Hi all I have 2 subdomains. They suddenly stopped ranking. When i check site:mysitename.com it is daily increasing no.of pages got cached. but not even for a single keyword it is ranking. kindly any body tell me what would be the problem.
Without any clue what your site is and what you've already been doing, this is a very hard question to answer. Check my sig for basic info on search engine optimization. Then check what your competition has been doing. Then get more relevant links to your site.