Free domain tools
Everything you need to know about a domain: whether it's available, who owns it, which IP it points to, whether its SSL and email are set up right, and what it looked like years ago. Free, no sign-up.
Find and appraise
- Domain availability Type a name or a full domain. Without an extension we check the most popular ones. You can paste up to 20, one per line.
- Name generator Enter one or two keywords. We combine them with common prefixes and suffixes and check which ones are available.
- Domain appraisal Enter a domain and we'll give you an indicative range based on the traits that matter most in the market.
Domain data
- WHOIS Find out who a domain's registrar is, when it was registered, when it expires and what state it's in.
- Domain history See since when a domain has captures in the Internet Archive and open them year by year.
- Subdomain finder We list the subdomains that appear in public SSL certificates issued for the domain.
- Punycode converter Type a domain with accents or another script, or one starting with xn--.
DNS and network
- DNS lookup Look up all public DNS records of a domain or subdomain, or pick a specific type.
- DNS propagation Compare what several public resolvers return to see whether your latest DNS change is visible.
- Domain IP lookup Enter a domain or an IP to see its address, country, network, provider and reverse DNS.
- What is my IP? This is the public IP address your connection uses on the Internet.
Web and email
- SSL checker Check whether a site's HTTPS certificate is valid, who issued it and how many days it has left.
- HTTP headers Enter a domain or a URL to see every redirect, the status code and the response headers.
- Email: SPF, DKIM, DMARC See whether a domain's email is set up correctly to deliver messages and prevent spoofing.
Premium domains for sale
If the short name you want is taken, we may have it. Every sale uses escrow payment and an assisted transfer.
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