Spamhaus Botnet threats: Most abused top-level domains, Q3 2021


See here the most abused top-level domains at Botnets, Q3 2021.

No changes at the top of the chart

In Q3, .com and .xyz continued to stay at the top of our ranking. The situation deteriorated for these two TLDs, particularly .com, which experienced a 90% increase. We hope that VeriSign, the owner of this TLD, will take all necessary steps to improve this situation and increase their TLD’s reputation.

Three new TLDs

Two new gTLDs and one ccTLD joined our Top 20: .club, .co and .monster. All have seen a significant increase in the number of new botnet C&C domains registered through their service.

You can read the complete Spamhaus report here.


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