Is klosowski.io valid?

klosowski.io is a valid domain that should be allowed to do sign-ups and registrations. Based on our analysis, you should allow this domain.

Raw API JSON response:

{
    "valid": true,
    "block": false,
    "domain": "klosowski.io",
    "base_domain": "klosowski.io",
    "text": "Looks okay",
    "reason": "Heuristics: WM1",
    "risk": 10,
    "is_disposable": false,
    "is_email_forwarder": false,
    "is_public_free": false,
    "is_public_premium": false,
    "is_business_provider": false,
    "is_isp_email": false,
    "is_email_api": false,
    "is_web_hosting_email": false,
    "is_self_hosted": false,
    "is_parked": false,
    "is_role_based_email": false,
    "mx_host": "mail.cba.pl",
    "mx_ip": "95.211.144.65",
    "mx_info": "Using MX pointer mail.cba.pl from DNS with priority: 0",
    "mx_fallback": false,
    "mx_hosts": [
        "mail.cba.pl"
    ],
    "mx_ips": [
        "95.211.144.65",
        "95.211.144.68",
        "95.211.144.67",
        "95.211.144.69",
        "95.211.144.66"
    ],
    "mx_priorities": {
        "mail.cba.pl": 0
    },
    "email_provider": null,
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": 806,
    "domain_created_at": "2024-06-25T00:00:00+00:00",
    "block_status_changed_at": "2025-10-19T16:43:21+00:00"
}