Is clarkweb.com valid?
How to block clarkweb.com e-mail domain
clarkweb.com
clarkweb.com is a domain that should be blocked from sign-ups or registrations. Based on our analysis, you should block this domain. If a user is trying to sign-up using an e-mail on this domain, it's likely that it's a malicious or fraudulent attempt for some reason.
The best way to detect and block domains like clarkweb.com is to use the Check-Mail API, available for free, for all programming languages.
Raw API JSON response:
"valid": true,
"block": true,
"disposable": false,
"email_forwarder": false,
"domain": "clarkweb.com",
"text": "Highly suspicious",
"reason": "Anomalies detected",
"risk": 80,
"mx_host": "mx.clarkweb.com",
"possible_typo": [],
"mx_ip": "66.96.140.89",
"mx_info": "Using MX pointer mx.clarkweb.com from DNS with priority: 0",
"last_changed_at": "2025-08-13T16:51:14+02:00"
}
clarkweb.com
Status: Highly suspicious
RISK
HIGH
Domain risk: 80
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