Check any domain in
seconds.
Search a name across hundreds of extensions to see what's available, then dig into DNS records, WHOIS, SSL and hosting details for any domain, all from one place.
What is DomainBullet?
DomainBullet is a free set of domain tools. Search a name across hundreds of extensions to see what is available, then look up DNS records, WHOIS data, SSL certificates, hosting, open ports and HTTP headers for any domain. Lookups run live, and no account is needed.
Three steps, a few seconds each.
- 1Enter a name or domain
Type a word to search extensions, or a full domain such as example.com to inspect it.
- 2Pick the check you need
See availability, or open DNS records, WHOIS, SSL, hosting, ports or HTTP headers.
- 3Act on the result
Register a free name at the registrar of your choice, or fix the record, certificate or setting that needs work.
Compare Top Level Domain (TLD) prices
Looking for the cheapest registrar to buy a domain? Compare registration, renewal and transfer costs across every TLD and find the right registrar for your domain.
Prices are shown in USD and are indicative — the registrar's checkout is always the final word. Links to registrars may be affiliate links.
Everything about a domain, in one place.
Fast availability checks
Lookups run in parallel and results appear as they come in, so you can scan a long list of extensions without waiting around.
Hundreds of extensions
Generic, country-code and niche TLDs are all covered, so you can see every place your name could live.
Name ideas when you're stuck
Try word, number and AI-based generators to get fresh, short name ideas with availability already checked.
DNS, WHOIS and SSL checks
Look up records, ownership details, certificates, open ports and hosting for any domain you own or are thinking of buying.
Every lookup a domain needs.
A, AAAA, CNAME, MX, TXT, NS, SOA and CAA records in one lookup.
Registrar, creation and expiry dates for a domain.
Certificate issuer, validity dates and the names it covers.
Hosting provider, IP address, CDN and mail servers.
Check a list of names at once instead of one by one.
See open ports and the HTTP headers a server sends.
Who uses DomainBullet
Find a short name that is free on the extensions you care about before you print anything.
Confirm DNS changes, mail records and certificates while moving a site or setting up email.
Check who hosts a site, when a domain expires and whether its certificate is valid.
Check your next domain right now.
Free to use and no account needed. Search names, look up DNS and WHOIS, and test SSL from one simple site.