Someone of my readers, expecially who has my blog subscribed on his aggregator, could be experienced some problems by reading my feed in the past days (it appeared offiline during some hours of the day).
The problem was due to a misconfiguration of the A record of my DNS: http://www.demiliani.com respond correctly while http://demiliani.com (the prefix for all the blog's service) was not correctly translated.
Now the problem is solved but if you see me offline again on your aggregator... don't esitate to alert me 