Domain Digger is the full open-source toolkit for next-level domain analysis, providing detailed DNS, IP, WHOIS data, and SSL/TLS history in a user-friendly, no-install interface.

Enter an Identity (Domain Name, Organization Name, etc), a Certificate Fingerprint (SHA-1 or SHA-256) or a crt.sh ID

En plus, il permet de lister les sous-domaines d'un domaine !
Source : https://blog.jbriault.fr/cheatsheet/

Domain name search results appear instantly as you type. Check domain names, popular extensions, and aftermarket domains for sale.