fetchwhois
Powered by the official IANA RDAP protocol

WHOIS Lookup for IONOS Domains

Look up WHOIS data for any domain registered with IONOS (formerly 1&1 Internet). FetchWhois queries the authoritative RDAP server and returns complete registration details for any IONOS-managed domain.

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Real-time WHOIS domain lookups resolved directly from authoritative RDAP servers — no queues, no waiting.

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Every ICANN lookup pulls structured data straight from the registry and registrar, following the official RDAP standard.

Hundreds of TLDs

From .com and .org to .io, .dev and country-code domains — powered by the IANA bootstrap registry.

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No sign-up and no domain upsells. Just clean, trustworthy WHOIS results every time.

How to look up an IONOS domain's WHOIS record

Live RDAP data for IONOS (formerly 1&1) domains.

1Step 1

Enter the IONOS domain name

Type the domain name into the search box. IONOS (IANA ID 83) is one of Europe's largest hosting and domain providers.

2Step 2

FetchWhois queries the authoritative RDAP server

We query the TLD's RDAP server. IONOS domains show their registrar entity (IONOS SE or 1&1 Internet SE) with IANA ID 83.

3Step 3

View IONOS registrar and domain details

Results show IONOS as registrar, domain dates, nameservers and DNSSEC status.

IONOS WHOIS lookups: what to expect

IONOS (formerly 1&1 Internet, now branded as IONOS by 1&1) is a major European web hosting and domain registration company founded in Germany in 1988. It holds IANA registrar ID 83 and is one of the largest registrars in Europe, with millions of domains under management primarily in Germany, France, the UK and North America. IONOS rebranded from 1&1 Internet SE to IONOS SE in 2018.

WHOIS records for IONOS-registered domains show 'IONOS SE' or '1&1 Internet SE' as the registrar with IANA ID 83. IONOS includes a domain guard feature (domain lock) by default. Their DNS nameservers typically use the 1and1.com domain. Privacy options are available for GDPR-covered registrations. Abuse reports go to the abuse contact shown in FetchWhois results.

IONOS WHOIS Lookup — Frequently Asked Questions

Everything you need to know about WHOIS, ICANN and RDAP domain lookups.