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Is .cymru safe? The state of .cymru domain security
.cymru is about average for the internet. Across 8,699 graded .cymru domains, 77.4% score an F — roughly in line with the 78.3% global average. 1.7% earn a B or better. Most .cymru 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 7,713 graded .cymru domains, 72% earn an F — below the 73.8% internet-wide average. Only 0.2% reach an A or A+ — the highest protection tier in the census.
How do .cymru domains score?
Aggregate grade distribution across all graded .cymru domains — we never publish an individual business's grade. As of 2026-08-16.
| Grade | Domains | Share |
|---|---|---|
| A+ | 4 | 0% |
| A | 12 | 0.1% |
| B | 135 | 1.6% |
| C | 561 | 6.4% |
| D | 1,251 | 14.4% |
| F | 6,736 | 77.4% |
Does .cymru 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 .cymru doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .cymru domain earns an A while the crowd around it sits at F.
Want to know where your .cymru 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 .cymru safe?
On average, .cymru is about average for the internet: 77.4% of its 8,699 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 .cymru domains?
22.6% of .cymru domains score above an F and 1.7% 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 .cymru 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 .cymru too.
What does "grade F" mean for a .cymru 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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