TLDFYI

TLD Lookup

Look up any top-level domain extension. See TLD type, registry, restrictions, and details. Browse 1,500+ TLDs. Free, instant.

## About Top-Level Domains and ICANN Every website address ends with a top-level domain (TLD) — the suffix after the final dot, such as **.com**, **.org**, or **.dev**. The Internet Corporation for Assigned Names and Numbers (ICANN) coordinates the global Domain Name System and delegates authority over each TLD to a registry operator. As of 2026, there are over 1,500 active TLDs in the DNS root zone. These include the original legacy gTLDs like .com and .net introduced in 1985, roughly 250 country-code TLDs (ccTLDs) assigned by ISO 3166-1 alpha-2 codes, and over 1,200 new gTLDs added through ICANN's 2012 expansion program. Each TLD has a designated registry that maintains the authoritative database of domain registrations under that extension. Registries set the wholesale price, technical requirements, and eligibility policies. End users register domains through accredited registrars who connect to the registry via the Extensible Provisioning Protocol (EPP). The DNS root zone file, managed by IANA (a department of ICANN), maps every TLD to its authoritative nameservers. When you type a domain into your browser, a recursive resolver queries the root servers, then the TLD nameservers, then the domain's own nameservers to find the IP address of the website. ## How to Use the TLD Lookup Tool 1. **Enter a TLD or keyword** — type a domain extension like "com", "io", or a keyword like "technology" 2. **Review the results** — see the TLD type (gTLD, ccTLD, sTLD), registry operator, and any registration restrictions 3. **Click through** — visit the full TLD detail page for pricing, registrar availability, and comparison data

How to Use

  1. 1
    Enter a TLD or keyword

    Type a top-level domain (like com, io, or technology) or a keyword into the search box.

  2. 2
    View TLD details

    See the TLD type (gTLD, ccTLD, new gTLD), registry operator, creation date, and whether it is restricted or open for registration.

  3. 3
    Explore related TLDs

    Browse related domain extensions and links to detailed TLD profiles with WHOIS information and registration guidance.

FAQ

What is a TLD?
A TLD (Top-Level Domain) is the last segment of a domain name after the final dot, such as .com, .org, or .io. TLDs are managed by ICANN and delegated to registry operators.
How many TLDs exist?
As of 2026, there are over 1,500 active TLDs including generic TLDs (.com, .net), country-code TLDs (.uk, .de), and new gTLDs (.app, .dev, .shop) introduced since 2012.
Is the TLD Lookup tool free?
Yes, the TLD Lookup is completely free and requires no account. Enter any TLD or keyword to get instant results from our database.