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Is .nexus safe? The state of .nexus domain security
.nexus is riskier than the internet average. Across 7,044 graded .nexus domains, 89.9% score an F — worse than the 78.3% global average — heavier on exposed domains than the web as a whole. 1.5% earn a B or better. Most .nexus domains can still be impersonated in email, but the ending shifts the odds, not your own domain's grade. As of 2026-08-16.
Of 5,897 graded .nexus domains, 86.9% earn an F — well above the 73.8% internet-wide average. Only 0.4% reach an A or A+ — the highest protection tier in the census.
How do .nexus domains score?
Aggregate grade distribution across all graded .nexus domains — we never publish an individual business's grade. As of 2026-08-16.
| Grade | Domains | Share |
|---|---|---|
| A+ | 7 | 0.1% |
| A | 14 | 0.2% |
| B | 88 | 1.2% |
| C | 224 | 3.2% |
| D | 375 | 5.3% |
| F | 6,336 | 89.9% |
Does .nexus 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 .nexus doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .nexus domain earns an A while the crowd around it sits at F.
Want to know where your .nexus 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 .nexus safe?
On average, .nexus is riskier than the internet average: 89.9% of its 7,044 graded domains score an F as of 2026-08-16, against a 78.3% global average. Most domains on every ending are exposed — the ending shifts the odds, not your own domain's grade.
How secure are .nexus domains?
10.1% of .nexus domains score above an F and 1.5% 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 .nexus 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 .nexus too.
What does "grade F" mean for a .nexus 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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