bpcot.cn
Complete domain intelligence: WHOIS registration, DNS records, and SSL certificate details.
WHOIS Registration Data
DNS Records
SSL Certificate
Other Domain Lookups
Understand Any Domain in Seconds
Each domain page on WhoisJSON combines three data sources in one view: WHOIS registration data (registrar, creation/expiry dates, status), DNS records (A, MX, NS, TXT, SOA), and SSL certificate details (issuer, validity, encryption). Need this data programmatically? All three endpoints are available through a single API key — 1,000 free requests/month.
Stay Informed with Domain Monitoring
Don't just check once — monitor domains continuously. Get email alerts when WHOIS ownership changes, DNS records update, SSL certificates expire, or a domain becomes available for registration. Monitoring is included in every WhoisJSON plan.
Analyze Any Domain with Our API
WHOIS, DNS, SSL, availability — one key, five powerful endpoints.