.CO.JP is a corporate JP domain for companies registered in Japan, including eligible foreign companies registered in Japan. It is one of the most established ways for a company to present a clearly Japanese corporate web identity.
Managing corporate JP domains for one or more eligible companies? View reseller and account options for bulk registration and domain management.
NiceNIC helps eligible companies check .CO.JP availability, organize registration and transfer requests, manage DNS, and keep corporate domains under one account. Before ordering, confirm that the registrant is an organization JPRS allows to hold a CO.JP name.
Add funds and pay for domain services using supported crypto options such as USDT, BTC, ETH, and LTC. Automated crypto deposit recording helps account balances update quickly after successful confirmation, with no extra NiceNIC processing fee for automated deposits.
NiceNIC provides real human support, not only scripted replies. Our team can review your domain needs, explain practical options, and give account-level, transfer, bulk registration, and reseller suggestions to help your domain business grow.
NiceNIC does not take arbitrary action against domains. Abuse reports are reviewed based on available evidence, policies, and registry requirements, with domain owners guided to review, fix, or explain reported issues where appropriate.
Manage .CO.JP together with 2,500+ domain extensions from one NiceNIC account, including country-code, generic, and new domain extensions. This helps businesses, investors, and resellers build global domain coverage more efficiently.
NiceNIC supports 47+ website languages, creating a multilingual registrar experience for international users and teams. This makes domain registration, renewal, transfer, account management, and support easier across different markets.
For hosting providers, agencies, platforms, and domain resellers, NiceNIC supports reseller API access for domain registration, renewal, transfer, DNS, account-level pricing, and custom nameserver services.
CO.JP has more than 500,000 registrations in 2026. For customers, that scale reflects how familiar the format is for Japanese companies: the suffix is specifically associated with eligible corporate organizations registered in Japan.
Official CO.JP registrations reported by JPRS in 2026.
Eligible companies must be registered in Japan under JPRS rules.
Organization-type JP domains are generally limited to one per organization, subject to JPRS rules.
The global domain market is large, but your choice should come down to whether .CO.JP matches your audience, eligibility, and brand.
.CO.JP is a strong fit for companies legally registered in Japan that want a highly recognizable corporate web identity backed by JPRS and the established JP domain system.
CO.JP is specifically assigned to eligible companies, so customers can immediately associate the address with a corporate presence in Japan.
JPRS requires the registrant to be a company registered in Japan; eligible foreign companies registered in Japan can also apply.
The namespace is built around organization-based registration, making it well suited to a company’s primary website, email domain, customer portal, and brand protection.
.CO.JP is one of Japan's most established business domain options. JPRS data shows steady growth in registered .CO.JP domains, reaching more than 500,000 names in August 2026.
For an eligible company in Japan, a matching .CO.JP name can reinforce corporate identity, improve local recognition, and protect the company name online.
Whether you need one domain for a business, several names for clients, a transfer, or reseller-level management, start with the registration rules that apply to .CO.JP and then choose the NiceNIC tools that fit your workflow.
Use .CO.JP as a primary corporate address for the company website, email, customer service, or business portal.
An eligible foreign company registered in Japan can use .CO.JP to present a clear Japanese corporate presence.
Protect the company name and key corporate identities while keeping JPRS eligibility and organization rules in mind.
Support eligible corporate clients with registration, DNS, transfer, and ongoing domain administration.
If you already own .CO.JP domains elsewhere, transfer decisions should not be based only on one renewal invoice. Check transfer eligibility, ownership access, billing reliability, support response time, API needs, and long-term domain management.
Paste multiple .CO.JP names, remove duplicates, review the count, and continue to bulk registration. This is useful for domain investors, brand teams, agencies, hosting providers, and resellers.
Enter one name per line, with or without .CO.JP. The tool removes duplicates and prepares a clean list for bulk registration.
If your business sells hosting, websites, SaaS, agency services, or brand protection packages, NiceNIC reseller APIs can support domain registration, renewal, transfer, DNS, and account management.
# NiceNIC API v2 endpoint
# Applies to supported domain extensions, including .com, .net, .org, ccTLDs, and new gTLDs
https://api.nicenic.net/v2/
# Required headers
Authorization: username:api_secret
Content-Type: application/json
# Check domain availability across multiple extensions
curl "https://api.nicenic.net/v2/?category=domain&action=check&domains=example.com,example.net,mybrand.org" \
-H "Authorization: username:api_secret" \
-H "Content-Type: application/json"
# Get registration / renewal / transfer pricing for any supported extension
curl "https://api.nicenic.net/v2/?category=domain&action=get_price&domain=example.com&type=register&year=1" \
-H "Authorization: username:api_secret" \
-H "Content-Type: application/json"
# Change the domain value to query another TLD:
# example.com, example.net, example.org, example.ai, example.co
# Standard response format
{
"code": 0,
"msg": "success",
"data": {}
}
Check the eligibility, documents, local requirements, transfer steps, and domain-management options that can affect your .CO.JP registration.
CO.JP can be registered by companies legally registered in Japan. JPRS also lists eligible foreign companies that are registered in Japan. If your company qualifies, you can check .CO.JP availability before starting the registration process.
A foreign company generally needs to be registered in Japan to qualify for CO.JP. A company with no qualifying Japanese registration should consider another JP domain type or other domain extensions available through NiceNIC.
JPRS states that organization-type JP domains are generally limited to one domain per organization, although JPRS provides specific exception and restriction-relaxation mechanisms in applicable cases.
JPRS provides a provisional-registration system for certain organization-type JP domains before the organization is fully established, subject to its detailed rules and deadlines.
The suffix is specifically associated with eligible corporate organizations in Japan, so it gives customers a clear signal that the website represents a Japanese-registered company. If .CO.JP fits your business, you can search for your company name directly on this page.
JP domain management changes are handled through a JP Registrar. The gaining registrar coordinates the applicable JPRS procedure, so prepare the current domain and organization information before requesting the change. You can also review NiceNIC domain transfer services.
For supported registrations, NiceNIC can help organize domain management, DNS settings, renewal planning, and account-level administration after the domain is active. Customers managing multiple names can also use bulk domain management tools.
Yes, domain service providers can assist eligible corporate clients, but the actual registrant must satisfy JPRS eligibility and organization rules for the CO.JP name. Agencies and platforms can also review the NiceNIC reseller API for supported domain-management workflows.
Confirm that the registrant is an eligible company registered in Japan, check whether the organization already holds an organization-type JP domain, choose the matching corporate name, and prepare accurate company information. When ready, check your .CO.JP domain and begin the registration process.
Register a new .CO.JP, transfer an existing domain, or upgrade your account level for bulk registration and reseller API use.
