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How secure are Japan's domains?
Most businesses in Japan use a .jp domain. Across 1,591,564 of them, here's how their security stacks up — aggregate patterns only, never an individual business. As of 2026-08-16.
In the .jp zone — covering Japan — 60.4% of 1,107,471 graded domains earn an F, well below the 73.8% internet-wide average. DMARC enforcement here stands at 5.9% — below the 11.8% census-wide rate.
We use .jp as a stand-in for Japan, based on the domain's ending rather than where a company is legally registered — so Japan businesses using a generic ending like .com aren't counted here.
Grade distribution
| Grade | Domains | Share |
|---|---|---|
| A+ | 101 | 0% |
| A | 853 | 0.1% |
| B | 12,531 | 0.8% |
| C | 111,227 | 7% |
| D | 396,524 | 24.9% |
| F | 1,070,328 | 67.3% |
See exactly where your own Japan domain ranks — free and private → Check your domain. Or browse .jp in detail and the most & least secure TLDs.
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