Recently I got a message from Google Webmaster saying my site's robots.txt file is Unreachable .
Over the last 24 hours, Googlebot encountered 1 errors while attempting to access your robots.txt. To ensure that we didn't crawl any pages listed in that file, we postponed our crawl. Your site's overall robots.txt error rate is 50.0%.
But it exists and I can reach it in browser http://www.92app.com/robots.txt