I have received message and I have seen my website down a few times. I have already called my host and they told that they were too many requests log shows errors like the following:
Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace.
FastCGI: An error happend on Fastcgi processing, fallback to CGI
I have already taken off jetpack which was used for atomatic post to facebook and linkedin.