Is biif.tools valid?

biif.tools 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": "biif.tools",
    "base_domain": "biif.tools",
    "text": "Looks somewhat suspicious",
    "reason": "Some anomalies detected",
    "risk": 55,
    "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": "biif.tools",
    "mx_ip": "91.213.188.9",
    "mx_info": "No MX-pointer in DNS record. Using domain: biif.tools",
    "mx_fallback": true,
    "mx_hosts": [
        "biif.tools"
    ],
    "mx_ips": [
        "91.213.188.9"
    ],
    "mx_priorities": {
        "biif.tools": 0
    },
    "email_provider": null,
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": 1699,
    "domain_created_at": "2022-01-20T00:00:00+00:00",
    "block_status_changed_at": "2026-09-07T01:22:40+00:00"
}