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Is .tz safe? The state of .tz domain security — Tanzania
.tz is safer than the internet average. Across 36,861 graded .tz domains, 55.3% score an F — cleaner than the 78.3% global average — better company than most of the web. 1.6% earn a B or better. Most .tz domains can still be impersonated in email, but the ending shifts the odds, not your own domain's grade. As of 2026-08-16.
In the .tz zone — covering Tanzania — 50.9% of 31,646 graded domains earn an F, well below the 73.8% internet-wide average. Only 0.1% reach an A or A+ — the highest protection tier in the census.
Note: .tz is used as a proxy for Tanzania based on the domain's TLD, not where the company is registered.
How do .tz domains score?
Aggregate grade distribution across all graded .tz domains — we never publish an individual business's grade. As of 2026-08-16.
| Grade | Domains | Share |
|---|---|---|
| A+ | 2 | 0% |
| A | 27 | 0.1% |
| B | 563 | 1.5% |
| C | 4,312 | 11.7% |
| D | 11,563 | 31.4% |
| F | 20,394 | 55.3% |
Does .tz 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 .tz doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .tz domain earns an A while the crowd around it sits at F.
Want to know where your .tz 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 .tz safe?
On average, .tz is safer than the internet average: 55.3% of its 36,861 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 .tz domains?
44.7% of .tz domains score above an F and 1.6% 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 .tz 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 .tz too.
What does "grade F" mean for a .tz 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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