Defaults.Exposed › By TLD › .bt
Is .bt safe? The state of .bt domain security
.bt is safer than the internet average. Across 1,463 graded .bt domains, 67.7% score an F — cleaner than the 78.3% global average — better company than most of the web. 4.2% earn a B or better. Most .bt 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 1,463 graded .bt domains, 67.7% earn an F — well below the 78.3% internet-wide average. Only 0.5% reach an A or A+ — the highest protection tier in the census.
How do .bt domains score?
Aggregate grade distribution across all graded .bt domains — we never publish an individual business's grade. As of 2026-08-16.
| Grade | Domains | Share |
|---|---|---|
| A+ | 1 | 0.1% |
| A | 6 | 0.4% |
| B | 55 | 3.8% |
| C | 180 | 12.3% |
| D | 230 | 15.7% |
| F | 991 | 67.7% |
Does .bt 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 .bt doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .bt domain earns an A while the crowd around it sits at F.
Want to know where your .bt 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 .bt safe?
On average, .bt is safer than the internet average: 67.7% of its 1,463 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 .bt domains?
32.3% of .bt domains score above an F and 4.2% 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 .bt 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 .bt too.
What does "grade F" mean for a .bt 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.
By TLD: .ai domains · .io domains · .biz domains · .vip domains · .dev domains · .cc domains · Rankings
Most & least secure TLDs → · Check your domain → · How we grade →