DNSFilter

Protective DNS service blocking malicious and unwanted domains before connections complete.

DNSFilter blocks phishing, malware, and unwanted content at the DNS layer, using machine learning to classify domains, including newly registered ones that static feeds miss. Deployment is light: point resolvers at the service and set policy. Founded in 2015, it is popular with MSPs and lean IT teams.

Category: Network & Zero Trust
Founded: 2015
Funding: $62M raised (Series A, 2023)
Website: https://www.dnsfilter.com

Seen at Black Hat USA 2026 (Platinum sponsor, booth 3948).

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