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How secure are Technology domains?
Businesses that chose the .io ending — typically in Technology — number 891,163 graded domains. Here's how their security looks. Aggregate only. As of 2026-06-28.
This reflects firms that picked the .io ending; most Technology businesses on a generic ending like .com aren't captured here.
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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