Learn about DNS records, email authentication, DNSSEC, and stay updated on DNSai tools and features.
Security
Eight offline models on one 2020 PC and three frontier models got the same two coding tests. Frontier won, local was close, and a script caught what judges missed.
Security
Companies verify OpenAI, Anthropic and Cursor domains with public TXT records. How to read them next to gateway and DMARC posture, and where DNS falls short.
Security
Six weeks of reporting on the Hugging Face intrusion, the Irregular misconfiguration and the AI-doom argument. Every failure traces to a human decision.
Dns
Looking for a BuiltWith alternative? Page profilers and DNS read different layers of a company's stack. What each method sees, and what it cannot.
Security
How to find dangling DNS records in your own zone: what a dangling CNAME really is, how to inventory CNAME targets, and how to triage what you find.
Dns
How to find the SaaS vendors in a company's SPF record: what include: really means, what macro records hide, and 14 live lookups from 2026-08-01.