Defaults.Exposed › By TLD › .tennis
Is .tennis safe? The state of .tennis domain security
.tennis is about average for the internet. Across 1,962 graded .tennis domains, 78.4% score an F — roughly in line with the 78.3% global average. 2.2% earn a B or better. Most .tennis 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 1,962 graded .tennis domains, 78.4% earn an F — close to the 78.3% internet-wide average. Only 0.2% reach an A or A+ — the highest protection tier in the census.
How do .tennis domains score?
Aggregate grade distribution across all graded .tennis domains — we never publish an individual business's grade. As of 2026-08-16.
| Grade | Domains | Share |
|---|---|---|
| A+ | 1 | 0.1% |
| A | 3 | 0.2% |
| B | 40 | 2% |
| C | 149 | 7.6% |
| D | 230 | 11.7% |
| F | 1,539 | 78.4% |
Does .tennis 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 .tennis doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .tennis domain earns an A while the crowd around it sits at F.
Want to know where your .tennis 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 .tennis safe?
On average, .tennis is about average for the internet: 78.4% of its 1,962 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 .tennis domains?
21.6% of .tennis domains score above an F and 2.2% 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 .tennis 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 .tennis too.
What does "grade F" mean for a .tennis 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 →