Is subthunk.com valid?

subthunk.com is a suspicious domain, but should still be allowed to do sign-ups and registrations. However, based on our analysis, you should be suspicious about this domain and monitor usage.

Raw API JSON response:

{
    "valid": true,
    "block": false,
    "domain": "subthunk.com",
    "base_domain": "subthunk.com",
    "text": "Suspicious",
    "reason": "Some anomalies detected",
    "risk": 70,
    "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": "subthunk.com",
    "mx_ip": "172.67.167.74",
    "mx_info": "No MX-pointer in DNS record. Using domain: subthunk.com",
    "mx_fallback": true,
    "mx_hosts": [
        "subthunk.com"
    ],
    "mx_ips": [
        "172.67.167.74"
    ],
    "mx_priorities": [],
    "email_provider": null,
    "disposable_provider": null,
    "possible_typo": [],
    "domain_age_days": null,
    "domain_created_at": null,
    "block_status_changed_at": "2021-03-18T02:41:09+00:00"
}