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Domain Tools

Check domain registration, age, expiry, and WHOIS/RDAP ownership details.

12 tools in this category

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SSL Tools 3 DNS Tools 12 Domain Tools 12 Website Tools 19 Security Tools 10 Email Tools 8 Performance Tools 10 SEO Tools 12 API & Developer Testing Tools 17 Git & GitHub Tools 18 DevOps Tools 16 Linux & System Administration Tools 17 Database & SQL Tools 20 AWS & Cloud Tools 16 Kubernetes Tools 14 Programming Language Tools 23 Frontend / CSS Tools 20 Image / SVG Developer Tools 18 Security & Authentication Tools 14 File & Data Conversion Tools 20 Data / Number / Computer Science Tools 19 Software Version / Package Tools 9 Developer Documentation / Project Tools 11 Byte Array Tools 17 Text & Writing Tools 28 Finance & Loan Calculators 20 PDF Tools 16 Image Editing Tools 12

SSL Tools 3 DNS Tools 12 Domain Tools 12 Website Tools 19 Security Tools 10 Email Tools 8 Performance Tools 10 SEO Tools 12 API & Developer Testing Tools 17 Git & GitHub Tools 18 DevOps Tools 16 Linux & System Administration Tools 17 Database & SQL Tools 20 AWS & Cloud Tools 16 Kubernetes Tools 14 Programming Language Tools 23 Frontend / CSS Tools 20 Image / SVG Developer Tools 18 Security & Authentication Tools 14 File & Data Conversion Tools 20 Data / Number / Computer Science Tools 19 Software Version / Package Tools 9 Developer Documentation / Project Tools 11 Byte Array Tools 17 Text & Writing Tools 28 Finance & Loan Calculators 20 PDF Tools 16 Image Editing Tools 12

Run All Domain Tools Checks

WHOIS / RDAP Lookup

Look up a domain's registration details - registrar, registration date, and expiry date.

Domain Expiry Checker

Check exactly when a domain name expires.

Domain Age Checker

Check how old a domain name is.

Registrar Lookup

Find out which registrar a domain is registered with.

RDAP Lookup

Look up a domain's registration data using the modern RDAP protocol, with automatic WHOIS...

TLD Information

Look up information about a domain's TLD (top-level domain) - its registry operator and WH...

Domain Availability Checker

Check whether a domain name is registered or available, using public WHOIS/RDAP data.

Reverse DNS Lookup

Look up the hostname associated with an IP address.

IP to Domain Lookup

Find the domain name associated with an IP address, where publicly available.

Nameserver Lookup

Find out which nameservers a domain uses.

WHOIS Privacy Checker

Check whether a domain's registration details are shielded by WHOIS privacy protection.

Domain Unicode / Punycode Converter

Instantly convert between Unicode (internationalized) and Punycode (ASCII) domain names, r...

Registration Details for Any Domain

Every domain has a public registration record: who the registrar is, when the name was first registered, when it expires and which nameservers it uses. These tools read that record from the registry, using the modern RDAP protocol where it is available and classic WHOIS where it is not.

The WHOIS / RDAP Lookup shows the full record, including status codes such as clientTransferProhibited. For a single detail there are faster tools: the Domain Expiry Checker for renewal dates, the Domain Age Checker for how long a name has existed, and the Registrar Lookup when you need to know where a domain is managed before a transfer.

Research and Troubleshooting

Check whether a name is free with the Domain Availability Checker.
Find the hostname behind an IP address with the Reverse DNS Lookup.
Convert internationalised names with the Domain Unicode / Punycode Converter.

Owner contact details are usually redacted for privacy; our guide to finding a domain's owner explains what you can still learn.