Domain Age Checker: Find a Domain's Real Age

Paste the domain into the free Domain Age Checker and read the registration date. That date is how old the domain is.

The age comes from the domain's registration record (WHOIS/RDAP). It is a registrar-level fact, not an estimate. But it is not the date a site launched, and it is not always the date a brand was born. The rest of this guide covers the edge cases, the SEO question, and how to run the check in code.

How to check a domain's age in 10 seconds

Open the free Domain Age Checker.
Enter the domain, for example example.com.
Read the registration date.

That's it. Browser versions of all our free tools are listed at /free-tools.

Want the full record instead of one date? Use the WHOIS lookup.

One scope note. The checker reads a domain's registration record, so it works for any registered domain in a TLD with RDAP support. It doesn't estimate anything.

What 'domain age' actually means

Three dates get mixed up constantly. Only one of them is the age.

Date	What it tells you	Is it the age?
Registration (creation) date	When the domain was registered	Yes
Last updated date	When the record last changed	No
Expiry date	When the current registration period ends	No

The API returns all of these: registration date, age in days and years, last-updated date, and expiration date.

Registration date is also not the launch date. Someone can register a domain in 2015, park it, and ship a site in 2021. The domain is still from 2015.

A worked example

Here is a hypothetical record. The dates are made up to show how to read them. They are not output from the tool.

Registration date: 2016-03-14
Last updated: 2026-02-02
Expiry date: 2027-03-14

Read it like this. The domain is about ten and a half years old as of October 2026. The record changed in February 2026. The current registration runs until March 2027. The updated date says nothing about age. Don't use it as one.

Why the age can look wrong

The date is accurate. The story you attach to it is often not. Four common reasons:

The domain dropped and was re-registered. If a registration expires and is released, the next registrant gets a fresh registration date. A brand that's been around for ten years can show a domain that's two. This is the most common surprise.
Transfers are not new registrations. Moving a domain between registrars, or selling it to a new owner, does not reset the registration date. Ownership changed. The domain didn't restart.
Privacy services hide the owner, not the date. Domain privacy masks registrant contact details. The registration date stays visible.
Some registries expose less data than others. Not every TLD returns the same fields. A missing date usually means the TLD, not the domain. Check the raw WHOIS/RDAP record before you conclude anything.

When the date contradicts the brand's history, don't argue with the record. Check whether the domain lapsed at some point.

Does domain age matter for SEO?

Short answer: not as a lever you can pull. Our own tool page puts it plainly: domain age is not a Google ranking factor.

What you see in practice is correlation. Older domains tend to have more backlinks, more content and more history. Those things can matter. The age number is just a proxy for them. A ten-year-old domain with no links and thin pages has no advantage. A new domain with great content and real links can compete.

If you need Google's stated position for a decision, read Google's own documentation and statements, not a blog's summary of them. Including ours.

So what should you check instead?

History. Has the domain been used for something spammy? Did it drop and get re-registered?
Content. Is there real, indexable material on it?
Links. Who links to it, and are those links worth having?

Using domain age to vet domains: leads, purchases, customer hostnames

Age is cheap to get and quick to read. It's a good first filter. It is a bad only filter.

Buying a used domain

Compare three things before you pay:

Registration date. Does it match the history the seller claims?
Expiry date. A domain about to expire might be easy to lose or easy to snag. Know which.
SSL and DNS state. Is it live, resolving, and serving a valid certificate?

If the seller says 'since 2012' and the record says last year, you've learned something. Ask why.

One caveat. An age checker reads the current registration record. If you need to know who owned the domain before and what it hosted, you need archive history or a paid historical WHOIS aggregator, not an age checker.

Spotting brand-new domains in signup flows

A lead signs up with a company email on a domain registered two days ago. That's one signal. Maybe it's a fraud pattern. Maybe it's a startup that launched on a Tuesday. Pair age with other checks (whether the site loads, whether an SSL certificate exists) before you act.

When your users connect their own domains

If you run a SaaS and your users bring their own domains, age is a cheap extra signal. Here's a pattern that works:

Look up the registration date when the user submits the hostname.
Run a DNS check to see whether it resolves where you expect.
Flag very new domains for a closer look instead of blocking them.

That's a pattern, not a feature. You can build it with any data source. For context, Domainee, a custom-domains-as-a-service API from Common Ninja, re-checks each connected customer domain's DNS state every 5 minutes, or on demand. DNS state and age answer different questions. You want both.

Check domain age in code (free API, no key)

The Domain Age Checker API is one of 18 free public REST endpoints from Domainee by Common Ninja. No API key. CORS-enabled, so you can call it from a browser.

Limits:

30 requests per minute per IP
500 requests per day per IP

It's plain REST. Use curl or whatever HTTP client your stack already has. The route is GET /v1/tools/domain-age-checker with a domain query parameter:

curl -s "https://api.domainee.dev/v1/tools/domain-age-checker?domain=google.com" | jq

No Authorization header. The lookup is RDAP-backed and returns the registration date, age in days and years, last-updated date, and expiration date.

We don't reprint the JSON response here, so you never code against a stale field name. The request and response reference is the source of truth.

The free endpoints have rate limits and no uptime commitment. They fit scripts and audits better than a production dependency.

Two related tools are worth knowing:

The WHOIS/RDAP endpoint returns the fuller record. Try it in the browser first with the WHOIS lookup.
For expiry dates across many domains, use the bulk Domain Expiration Checker.

If you're building a signup check, mind the 500/day cap. Cache results. A domain's registration date rarely changes, so look it up once per domain.

WHOIS vs. RDAP, briefly

WHOIS is the older text-based protocol for querying registration data. RDAP is its newer, structured replacement, returning JSON. Both answer the same basic question: who registered this, with which registrar, and when. For the age of a domain, either one gets you the registration date.

Related checks worth running next

A date tells you when. It doesn't tell you what's happening now. Run these next:

WHOIS/RDAP record for the registrar and all the dates.
DNS record lookup to see where the domain points.
SSL certificate check to see whether it's live and secured.
DNS provider lookup to see who hosts its DNS.

All four are among the free tools at /free-tools, and each has a matching free API.

FAQ

How old is a domain, and where does the age come from? It's the time since the domain's registration date, taken from its WHOIS/RDAP record.

How do I check the age of a domain for free? Paste it into the free Domain Age Checker and read the registration date.

Is the domain age the same as the website's age? No. The domain age starts at registration. The site may have launched years later.

Why does a domain show a newer registration date than the company's history? Usually the domain expired, dropped and was re-registered, which resets the date. Transfers and ownership changes don't.

Does domain age affect Google rankings? Not on its own. Older domains often have more links and history, and those can matter. Check history, content and links instead.

Can I check domain age through an API? Yes. The Domain Age Checker API is free, needs no key, and allows 30 requests/min and 500/day per IP.

Can I check the expiration date of many domains at once? Yes. Use the bulk Domain Expiration Checker.

What is the difference between WHOIS and RDAP? WHOIS is the older text protocol. RDAP is the newer, structured JSON one. Both return registration data.

Does domain privacy hide the registration date? No. Privacy services mask the owner's contact details. The registration date stays visible.

Try it

Run any domain through the free Domain Age Checker now. If you build a SaaS and your users want to connect their own domains, Domainee's free tier covers 20 domains and 100 GB/month, free forever.