Five Registrars, Half the Blocklisted Domains, and a Dispute Over the Count

Of the roughly 85 million gTLD domains newly registered in 2025, 8.5 million had been added to blocklists by mid-May this year. That is one in ten. Interisle Consulting Group, which published the count in June, treats that observed figure as a floor rather than an estimate of the full scale, and projects that the number bought by malicious actors may be closer to 16.8 million, or one in five.