SEO tools / Domain and authority
WHOIS lookup
Registrar, dates, status and name servers of any domain.
More domain and authority tools
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Competitor finderFind the sites that compete with a domain for the same keywords.
Domain age checkerWhen a domain was registered and how old it is.
Domain availability checkerCheck whether a domain name is still free to register.
Tech stack / CMS detectorFind which CMS, frameworks, servers and analytics a website uses.
Website worth calculatorA rough value of a website from its estimated traffic and authority.
How to use the whois lookup
Registrar, dates, status and name servers of any domain. Enter the domain name above and press the button. Results appear on this page and you can share the link.
Visitors can run 30 checks a day. Create a free account for projects, site audits, rank tracking and saved keyword lists.