Dev Tools · 1h ago
New tool checks if your DNS is a single point of failure
A developer created dns-resilience-check, a Rust-based tool that audits whether a domain's authoritative DNS servers are spread across multiple networks. It resolves nameserver IPs to ASNs to detect if all servers sit with one provider, a common single point of failure. The tool also checks DNSSEC status and NS TTLs, using only public DNS data via DNS-over-HTTPS.
Meridian48 take
The tool highlights a blind spot in infrastructure resilience that many teams overlook, but its value depends on whether users act on the findings rather than just running the check.
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You hardened your origin and your CDN. Your DNS is still one provider away from going dark. →
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