Web404 is experiencing a DDoS at this moment, which affects its network connectivity.
We are working with our datacenter engineers to enable DDoS protection for the server, which will improved the situation but packet loss and other network problems are still to be expected.
2014-02-04 19:23 UTC: The DDoS has subsided with the mitigation in place. The server is responding properly again. We will continue to monitor.
2014-02-05 00:05 UTC: This is now resolved.