March 2025: Domain Activity Highlights
The WhoisXML API research team analyzed 8.2+ million domains registered between 1 and 31 March 2025 to identify the most popular registrars, top-level domain (TLD) extensions, and other global domain registration trends.
We also determined the top TLD extensions used by 59.2+ billion domains from our DNS database’s A record full file dated 6 March 2025.
Next, we studied the top TLDs of 1.1+ million domains detected as indicators of compromise (IoCs) this March.
Finally, we summed up our findings and provided links to the threat reports produced using DNS, IP, and domain intelligence sources during the period.