The Half-Life of a Domain: We Tracked 181 Million Resolving Websites for 38 Months — 63.5% Are Still Alive
We followed every one of the 181.1 million domains that resolved in April 2023 across 26 DNS snapshots to June 2026, and did the same for a 246.8-million-domain 2025 cohort. The resolving web loses 13-15% of itself every year — a half-life of roughly five years — but the deaths are wildly unequal: Freenom's five TLDs went 99% extinct in the largest die-off ever recorded in the DNS, the cheap-promo gTLDs lose up to 95% of their web in three years, and Germany's .de keeps 84% alive. For registrars, investors, security teams, and anyone who links to anything.