
Bulk Whois API
WhoisThisDomain
WebCargo
Whoisology
Active Whois Browser
JSON WHOIS API
WhoisAPI
ICANN WHOIS
NetAPI
zonefiles.io
Domain-Monitor.io
WhoisXML API
Domains Monitor
Newly Registered Domains Lists
Domains Lists
WhoisDB.co
Lists of 400M+ classic and country domains, WHOIS data, and reverse DNS lookup. Lists of newly registered and expired domains. Daily updated domain datasets. Accessible manually or via a simple API.
Bulk Whois API
NetAPINetAPI's answer:
We monitor 400mln+ domain names in 1,390 domain zones (including country codes), and our datasets are updated daily.
NetAPI's answer:
World-biggest domain database and robust API
WhoisThisDomain - Domain name lookup tool that allows you to get information about domain registration from WHOIS server.
zonefiles.io - List of registered domain names updated daily
WebCargo - Optimize your workflow by offloading it to us. Useful API's with seamless integration that scale to your needs.
Domain-Monitor.io - Looking for the complete domain and website uptime monitoring solution? Domain Monitor keeps an eye on your website, cron, SSL and domain name 24/7 and will alert you through Email, SMS and web when something stops working.
Whoisology - Connected database of whois records and whois history
WhoisXML API - Domain, IP, and DNS data provider