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Domain Extension Guide

.CO.JP Domain Registration & WHOIS

Analyze registry operators, character limits, IDN support status, and specific registration guidelines for .CO.JP domains.

Extension Metadata

Min 2 Chr
Max 63 Chr
IDN NO
Category: country
Operator: JPRS

Registration Eligibility

This extension is open to any individual or business globally without strict regulatory constraint policies.

Recently Queried Domains

jwt-trade.co.jp Query fam-tantei.co.jp Query why-not.co.jp Query synctix.co.jp Query

Overview & Registration Guidelines

The .CO.JP domain extension is Japan's corporate second-level domain managed by JPRS (Japan Registry Services). Registration is strictly limited to companies incorporated under Japanese law, with a unique restriction: each corporation may register only one .co.jp domain. This one-domain-per-entity policy makes .co.jp one of the most exclusive and trusted commercial extensions globally. Widely regarded in the East Asian market as the highest-trust domain for legitimate Japanese businesses. It requires a minimum label length of 2 characters and supports up to 63 characters. It does not support IDN characters, meaning only standard English characters are allowed. Registration is completely open and unrestricted globally to individuals and organizations.

To search for who owns a specific domain registered under this extension, you can perform a live query in our WHOIS portal above. The registry operator database will respond in real time with server details, domain status codes, registration/expiry dates, and name server arrays.

Frequently Asked Questions