mailcheck.hugen.tokyo
3 listed endpoints · free reliability snapshot (reduced density)
| endpoint | grade | uptime 30d | conf. |
| /mailcheck/validate | B 77.5 | 89.8% | 0.75 |
| /mailcheck/disposable | A 81.8 | 100.0% | 0.75 |
| /mailcheck/mx | B 79.6 | 98.2% | 0.71 |
Scores use reduced-density sampling; live probe, full 30-min density and 90-day history via the paid API.