Defaults.Exposed › By TLD › .io
The state of .io domain security
Across 891,163 graded .io (Technology) domains, here is how domain security breaks down. Aggregate patterns only — we never publish an individual business's grade. As of 2026-06-28.
Grade distribution
| Grade | Domains | Share |
|---|---|---|
| A+ | 143 | 0% |
| A | 766 | 0.1% |
| B | 10,188 | 1.1% |
| C | 50,148 | 5.6% |
| D | 121,528 | 13.6% |
| F | 708,390 | 79.5% |
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