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Is .is safe? The state of .is domain security — Iceland
.is is safer than the internet average. Across 49,116 graded .is domains, 49% score an F — cleaner than the 73.8% global average — better company than most of the web. 5% earn a B or better. Most .is 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: .is is used as a proxy for Iceland based on the domain's TLD, not where the company is registered.
How do .is domains score?
Aggregate grade distribution across all graded .is domains — we never publish an individual business's grade. As of 2026-07-29.
| Grade | Domains | Share |
|---|---|---|
| A+ | 124 | 0.3% |
| A | 211 | 0.4% |
| B | 2,126 | 4.3% |
| C | 8,238 | 16.8% |
| D | 14,355 | 29.2% |
| F | 24,062 | 49% |
Does .is 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 .is doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .is domain earns an A while the crowd around it sits at F.
Want to know where your .is 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 .is safe?
On average, .is is safer than the internet average: 49% of its 49,116 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 .is domains?
51.0% of .is domains score above an F and 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 .is 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 .is too.
What does "grade F" mean for a .is 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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