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Is .inc safe? The state of .inc domain security
.inc is safer than the internet average. Across 7,126 graded .inc domains, 71.9% score an F — cleaner than the 78.3% global average — better company than most of the web. 4.7% earn a B or better. Most .inc 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 6,318 graded .inc domains, 69.9% earn an F — below the 73.8% internet-wide average. Only 0.5% reach an A or A+ — the highest protection tier in the census.
How do .inc domains score?
Aggregate grade distribution across all graded .inc domains — we never publish an individual business's grade. As of 2026-08-16.
| Grade | Domains | Share |
|---|---|---|
| A+ | 2 | 0% |
| A | 31 | 0.4% |
| B | 302 | 4.2% |
| C | 770 | 10.8% |
| D | 894 | 12.5% |
| F | 5,127 | 71.9% |
Does .inc 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 .inc doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .inc domain earns an A while the crowd around it sits at F.
Want to know where your .inc 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 .inc safe?
On average, .inc is safer than the internet average: 71.9% of its 7,126 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 .inc domains?
28.1% of .inc domains score above an F and 4.7% 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 .inc 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 .inc too.
What does "grade F" mean for a .inc 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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