List of domain extensions

.istanbul

.istanbul is a generic extension, run by Istanbul Metropolitan Municipality since 2015. Anyone can register a .istanbul name through a registrar that sells it.

TypeGeneric
Registry operatorIstanbul Metropolitan Municipality
Who can registerAnyone
In the root zone since11 July 2015
DNSSECSigned
RDAP serverhttps://rdap.identitydigital.services/rdap/
WHOIS serverwhois.nic.istanbul
IANA recordiana.org/domains/root/db/istanbul

Registrars that sell .istanbul

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From the list of domain registrars. Other registrars may sell it too.

Look up a .istanbul domain

The .istanbul registry publishes registration data over RDAP. The free domain report reads it and shows a .istanbul domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.

More extensions from Istanbul Metropolitan Municipality

.istGeneric · 2015

New to extensions? The guide to how domain extensions work covers generic, country-code and brand extensions. For who sells extensions in general, see the list of domain registrars.

Sources: the IANA root zone database and the ICANN list of generic extensions (refreshed 2026-10-24). Something out of date? Tell us.

Frequently asked questions

Who runs the .istanbul extension?

Istanbul Metropolitan Municipality is the registry operator for .istanbul. The registry keeps the list of every .istanbul name; registrars sell the names to the public.

Can anyone register a .istanbul domain?

Yes. Anyone can register a .istanbul name through a registrar that sells it.

When was .istanbul created?

.istanbul was added to the DNS root zone on 11 July 2015, according to IANA.

How do I look up who owns a .istanbul domain?

The .istanbul registry publishes registration data over RDAP at https://rdap.identitydigital.services/rdap/ and over WHOIS at whois.nic.istanbul. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.

Is .istanbul signed with DNSSEC?

Yes. The .istanbul zone is signed, so a .istanbul domain can turn on DNSSEC once its registrar adds a DS record.