DomainwiseDomainwise

言語を選択

ドメイン 年齢チェッカー

ドメインがいつ登録されたか、どのくらいの年数が経過しているかを確認します。

Domain Age Checker

Find out when any domain was registered, how old it is, when it expires, and who the registrar is -- instantly and for free.

What This Tool Does

The Domain Age Checker retrieves the registration history of any domain name and calculates its exact age. Enter a domain and you will immediately see the original registration date, the age in years and days, the expiry date, and the registrar currently managing the domain.

This information comes from RDAP and WHOIS registry data, the authoritative source for domain registration records. The tool normalizes results so you get a clean, easy-to-read summary without having to parse raw WHOIS output yourself.

The Domain Age Checker is part of the free domain tools suite on Domainwise. No sign-up or account is required, and you can check as many domains as you need. The tool also supports the ?q= URL parameter, so you can link directly to a check for any domain.

Why Domain Age Matters

Domain age is more than a curiosity -- it plays a meaningful role in several areas of the domain industry and digital marketing:

  • Search engine trust: While domain age alone does not guarantee high rankings, search engines do consider the longevity of a domain as one of many trust signals. An older domain that has been consistently active may carry more authority than a brand-new registration.
  • Domain valuation: Investors and brokers routinely factor age into their appraisals. A domain registered in the late 1990s or early 2000s is generally perceived as more valuable, all else being equal, because of its established history.
  • Due diligence: If you are buying a website or business, verifying the domain's registration date confirms how long the online presence has actually existed. Claims about a company's history can be cross-referenced with the domain record.
  • Expiry awareness: Knowing when a domain expires helps you plan renewals in advance and avoid accidental lapses. It also helps investors spot domains that may become available soon.

Understanding the Results

Each domain age check returns a structured set of fields that give you a complete picture of the domain's registration timeline:

  • Registration Date -- the date the domain was first registered with a registrar. This is the starting point for the age calculation.
  • Age (Years and Days) -- the calculated time between the registration date and today, displayed in a human-readable format such as "28 years, 162 days."
  • Expiry Date -- the date when the current registration period ends. The domain must be renewed before this date or it will eventually become available for others to register.
  • Last Updated -- the most recent date the WHOIS record was modified, which may reflect a renewal, transfer, or DNS change.
  • Registrar -- the company through which the domain is currently registered. Note that domains with WHOIS privacy enabled may show the privacy proxy service as the registrar.

Common Use Cases

The Domain Age Checker is useful across a variety of scenarios and professional contexts:

  • Domain investors evaluating potential acquisitions use age as a key factor in determining a domain's market value and resale potential.
  • SEO professionals conducting site audits check domain age to understand the historical authority profile of a website and its competitors.
  • Business buyers performing due diligence verify the registration date to confirm how long a company has maintained its online presence.
  • Competitor analysts research when rivals registered their domains to understand market entry timelines and brand establishment dates.
  • Webmasters track their own domain expiry dates to ensure timely renewals and avoid service interruptions.

Related Guides

Learn more about domains, registration, and how to make informed decisions with these resources:

Browse more guides and tutorials on the Domainwise article hub.

Domain Age Checker | Domainwise