Professional WHOIS API Service
Instant Domain Data via Modern REST API
Access parsed WHOIS information through our reliable API service. Get structured data in JSON or XML format with 1000 free monthly requests.
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const options = {
method: 'GET',
url: 'https://whoisjson.com/api/v1/whois',
params: { domain: 'whoisjson.com' },
headers: {
'Authorization': 'Token=YOUR_API_KEY'
}
};
fetch(options.url + '?' + new URLSearchParams(options.params), {
method: options.method,
headers: options.headers
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error(error));
{
"server": "gamma",
"name": "whoisjson.com",
"idnName": "whoisjson.com",
"status": [
"clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited",
"clientTransferProhibited https://icann.org/epp#clientTransferProhibited"
],
"nameserver": [
"dns200.anycast.me",
"ns200.anycast.me"
],
"ips": "94.23.35.47",
"created": "2016-12-01 10:28:12",
"changed": "2024-12-02 08:11:20",
"expires": "2025-12-01 10:28:12",
"registered": true,
"dnssec": "signedDelegation",
"whoisserver": "whois.ovh.com",
"contacts": {
"owner": [{
"handle": "REDACTED FOR PRIVACY",
"name": "REDACTED FOR PRIVACY",
"email": "REDACTED FOR PRIVACY",
"country": "FR"
}],
"admin": [{
"handle": "REDACTED FOR PRIVACY",
"name": "REDACTED FOR PRIVACY",
"organization": "REDACTED FOR PRIVACY"
}],
"tech": [{
"handle": "REDACTED FOR PRIVACY",
"name": "REDACTED FOR PRIVACY",
"organization": "REDACTED FOR PRIVACY"
}]
},
"registrar": {
"id": "433",
"name": "OVH, SAS",
"email": "[email protected]",
"url": "https://ovh.com",
"phone": "+33.972101007"
}
}
Features
Why Choose Our API?
Reliable, fast, and developer-friendly WHOIS data access
Lightning Fast
Get instant domain data with our optimized infrastructure delivering responses in milliseconds.
Reliable & Secure
Bank-grade security with 99.9% uptime guarantee and real-time data updates.
Developer First
Clear documentation, multiple format support, and comprehensive API references.
Our Services
Comprehensive Domain Intelligence Suite
Access complete domain information through our specialized APIs and monitoring services
WHOIS API
Professional domain registration data in JSON/XML format
- Real-time domain registration details
- Registrar and nameserver information
- Creation and expiration dates
NSLookup API
Comprehensive DNS records lookup service
- A, AAAA, MX, TXT records
- CNAME and NS records
- PTR records for reverse DNS
SSL Certificate API
Validate and retrieve SSL certificate details
- Certificate validity status
- Issuer information
- Encryption standards
Domain Monitoring
Real-time domain change monitoring
- WHOIS change alerts
- DNS modification tracking
- SSL certificate monitoring