The Wednesday Witching Hour: CloudFlare DoS Statistics

Data from CloudFlare's network reveals that denial of service (DoS) attacks occur over 40% of the time, with peak times during the night in the USA. The worst period for DoS attacks is Tuesday to Wednesday night. Attackers use various IP protocols and methods such as TCP SYN flooding and reflection attacks using DNS and SNMP. Carpet bombing and drive-by attacks have also been observed. Despite these trends, CloudFlare's engineers work tirelessly to protect their web sites from such attacks, with the overall trend in attacks slightly decreasing over the last six months.