There are well over a thousand top-level domains, from .com to .москва. The TLD Explorer loads IANA's official list every day so you can search extensions, see how they are grouped and jump straight to availability checks for a name across any of them.
How to use the TLD Explorer
- Type to filter extensions.
- Use the group filter for generic, country-code, IDN or other.
- Click an extension to check a name in it.
How it works
Our daily pipeline downloads tlds-alpha-by-domain.txt from IANA and classifies each entry: two-letter codes as country-code TLDs, xn-- entries as internationalised (IDN) TLDs, the legacy gTLDs by name, and everything else as new gTLDs, many of which are single-company brand TLDs.
When to use it
- Finding an extension that fits a niche
- Domain hack ideas
- Checking whether a brand TLD exists
Pro tips
- .com still dominates resale liquidity. Treat niche extensions as end-user plays, not inventory.
- Some ccTLDs have residency rules — read the registry's policy before buying.
Frequently asked questions
How many TLDs are there?
The live count is shown at the top of the tool and updates daily from IANA.
What is a ccTLD?
A country-code top-level domain such as .ca, .de or .io, assigned by two-letter ISO country codes.
What is an IDN TLD?
An extension in a non-Latin script, stored in DNS as punycode starting with xn--.