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Domainfo

Domain availability, whois & DNS

The fastest way to check any domain: is it available, who owns it, and when does it expire? Type a name and get an instant answer.

Developer ToolsiPhoneSwiftUI
View on the App Store ↗
Domainfo
Screenshots

A look inside.

Domainfo screenshot 1
Domainfo screenshot 2
Domainfo screenshot 3
Features

What it does.

Instant availability

Check any domain and TLD in a single search.

Full whois

Registrar, created, updated and expiry dates, plus domain status.

DNS records

A, AAAA, MX, TXT, SOA and more, with TTLs and name servers.

Renewal timeline

Domain age and a progress bar showing when it might come back on the market.

Portfolio

Save domains and track their availability over time.

No accounts

No sign-ups - just search. Pro is a one-time payment.

In depth

Domain lookups, the fast way.

Is it available?

Domainfo is the fastest way to check any domain on your iPhone. Type a name and get an instant answer for any domain and TLD. If it’s available, you can register it in one tap.

Full whois, made readable

For registered domains you get the full picture: registrar, created, updated and expiry dates, and domain status - laid out cleanly instead of a wall of raw whois text. Domain age and a renewal progress bar are calculated for you, so you can see exactly when a domain might come back on the market.

DNS records and name servers

Look up A, AAAA, MX, TXT, SOA and more, with TTLs, plus name servers at a glance. It’s handy when you’re checking a DNS change has gone through, or debugging email for a client while you’re away from your desk.

A portfolio to keep watch

Save any domain with a tap and Domainfo tracks its availability status. Re-check a domain straight from your portfolio, and recent lookups are always one tap away.

Built for speed

No accounts and no sign-ups - just search. A clean, modern interface with full dark mode keeps it quick to use, and Domainfo Pro is a small one-time payment, never a subscription.

FAQ

Questions, answered.

How do I check if a domain name is available?

Type the domain into Domainfo. You’ll get an instant availability answer, and available domains can be registered in one tap.

How can I find out when a domain expires?

Look it up in Domainfo. The whois view shows the expiry date, and a renewal progress bar shows when it might come back on the market.

Which DNS records can Domainfo show?

A, AAAA, MX, TXT, SOA and more, with TTLs, plus the domain’s name servers.

Is Domainfo a subscription?

No. Domainfo is free to download, and Pro is a small one-time payment that adds the full DNS and name server view, unlimited lookups and portfolio, and no ads.

Get Domainfo

Free on the App Store, for iPhone and iPad.