The analysis reveals that the .su TLD doesn’t rank highest on any single day by unique networks, but over longer periods, it receives queries from more unique networks compared to other TLDs. The top hostnames within .su are linked to a popular online world-building game, with over half of the queries coming from the United States, Germany, and Brazil.
For email security, Cloudflare’s analysis identifies TLDs with the highest percentages of malicious and spam messages based on the email headers processed by their cloud email security service. TLDs like .motorcycles show malicious rates above 90%, indicating a high risk of receiving malicious or spam emails from these domains.
Furthermore, each TLD page on Cloudflare Radar includes certificate transparency data, showcasing TLS/SSL certificate issuance volume and distribution among certificate authorities. Monitoring query volume and geographical distribution can help TLD operators and managers detect anomalies and potential abuse within their operations.
