No WHOIS Server - Try Registry's Web Interface
Although .es is valid, there is no WHOIS Server to make inquiries. A web-based WHOIS interface provided by the registry can be found here : https://www.nic.es/esnic/jsp/frm_buscar_dominio.jsp
Although .es is valid, there is no WHOIS Server to make inquiries. A web-based WHOIS interface provided by the registry can be found here : https://www.nic.es/esnic/jsp/frm_buscar_dominio.jsp