Defaults.Exposed › By TLD › .sk
Is .sk safe? The state of .sk domain security — Slovakia
.sk is safer than the internet average. Across 291,361 graded .sk domains, 40.2% score an F — cleaner than the 73.8% global average — better company than most of the web. 6.9% earn a B or better. Most .sk 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: .sk is used as a proxy for Slovakia based on the domain's TLD, not where the company is registered.
How do .sk domains score?
Aggregate grade distribution across all graded .sk domains — we never publish an individual business's grade. As of 2026-07-29.
| Grade | Domains | Share |
|---|---|---|
| A+ | 151 | 0.1% |
| A | 2,390 | 0.8% |
| B | 17,643 | 6.1% |
| C | 48,768 | 16.7% |
| D | 105,227 | 36.1% |
| F | 117,182 | 40.2% |
Does .sk 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 .sk doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .sk domain earns an A while the crowd around it sits at F.
Want to know where your .sk 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 .sk safe?
On average, .sk is safer than the internet average: 40.2% of its 291,361 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 .sk domains?
59.8% of .sk domains score above an F and 6.9% 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 .sk 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 .sk too.
What does "grade F" mean for a .sk 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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