Whitelisted Companies
And thousands more...
Join thousands of businesses protecting themselves through our shared blacklist database. Access real-time customer verification and prevent fraud before it happens.
And thousands more...
Lookup every new customer's credentials before they buy.
Prevent fradulent or chargeback payments before they happen.
Database updates with new reports from businesses worldwide
Check if an email address is associated with fraudulent activity
Help other businesses by reporting fraudulent or problematic customers (or automatically via our API).
Please sign in or create an account to report problematic customers.
Integrate our blacklist database into your applications
Single endpoint for email verification
POST /api/check_email
Get instant verification results
~50ms response timeNo danger level percentages
Knowingcurl -X POST "https://api.virtualblacklist.com/api/check_email" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"email": "[email protected]"}'$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api.virtualblacklist.com/api/check_email");
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
'email' => '[email protected]'
]));
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'Authorization: Bearer YOUR_API_KEY',
'Content-Type: application/json'
]);
$response = curl_exec($ch);
curl_close($ch);import requests
url = "https://api.virtualblacklist.com/api/check_email"
headers = {
"Authorization": "Bearer YOUR_API_KEY",
"Content-Type": "application/json"
}
data = {"email": "[email protected]"}
response = requests.post(url, json=data, headers=headers)
result = response.json()const response = await fetch('https://api.virtualblacklist.com/api/check_email', {
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
email: '[email protected]'
})
});
const result = await response.json();