Defaults.Exposed › By TLD › .us
Is .us safe? The state of .us domain security — United States
.us is riskier than the internet average. Across 1,322,723 graded .us domains, 82.7% score an F — worse than the 73.8% global average — heavier on exposed domains than the web as a whole. 1.4% earn a B or better. Most .us domains can still be impersonated in email, but the ending shifts the odds, not your own domain's grade. As of 2026-07-29.
Note: .us is used as a proxy for United States based on the domain's TLD, not where the company is registered.
How do .us domains score?
Aggregate grade distribution across all graded .us domains — we never publish an individual business's grade. As of 2026-07-29.
| Grade | Domains | Share |
|---|---|---|
| A+ | 513 | 0% |
| A | 1,589 | 0.1% |
| B | 16,215 | 1.2% |
| C | 62,786 | 4.7% |
| D | 147,644 | 11.2% |
| F | 1,093,976 | 82.7% |
Does .us make a domain secure?
No — and that's the most important thing to know. A domain's grade is decided by how it is configured (SPF, DMARC, HTTPS, DNS), not by its ending. Choosing .us doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .us domain earns an A while the crowd around it sits at F.
Want to know where your .us domain ranks? Check it privately and free — we only ever show an individual domain's grade to its verified owner. Run the free check →
Frequently asked questions
Is .us safe?
On average, .us is riskier than the internet average: 82.7% of its 1,322,723 graded domains score an F as of 2026-07-29, against a 73.8% global average. Most domains on every ending are exposed — the ending shifts the odds, not your own domain's grade.
How secure are .us domains?
17.3% of .us domains score above an F and 1.4% earn a B or better. The rest fail the basic externally observable protections, most importantly enforced SPF and DMARC, so they can be impersonated in email.
Does choosing .us make my domain secure?
No. A domain's grade comes from how it is configured — SPF, DMARC, HTTPS, DNS — not from its ending. A well-configured domain earns an A on any ending; an unconfigured one sits at F on .us too.
What does "grade F" mean for a .us domain?
It fails the basic protections we can observe from outside — above all, it has no enforced SPF and DMARC, so its email can be forged and its customers targeted with convincing fakes.
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