.jp

.jp
Japan Registry Services · Public domain · source
Name	.jp
Introduced	1986
Type	Country code top-level domain
Status	Active
Registry	Japan Registry Services
Sponsor	Japan Network Information Center
Intended use	Entities connected with Japan
Actual use	Widely used in Japan
Structure	Registrations at second level and under multiple second-level categories
Idn	Yes (Japanese characters)

.jp

Overview

.jp is the country code top-level domain administered for Japan and used by Tokyo, Osaka, Yokohama, Nagoya, Sapporo and other Japanese cities and organizations. It serves corporations such as Sony, Toyota, Nintendo, Rakuten, SoftBank Group, and institutions like University of Tokyo, Keio University, Hitotsubashi University, and National Diet Library. Major online services and media outlets including NHK, Asahi Shimbun, Yomiuri Shimbun, Yahoo! Japan, and LINE Corporation commonly deploy .jp names. The zone supports both ASCII and Japanese script internationalized domain names used by cultural entities like Nintendo Switch and commerce platforms tied to Tokyo Stock Exchange listings.

History

The .jp ccTLD was introduced in 1986 during early Internet expansion alongside zones such as .us and .uk. Initial management involved academic and research communities including University of Tokyo, Keio University, and the WIDE Project, later transitioning to organizations such as the Japan Network Information Center (JPNIC) and the Japan Registry Services (JPRS). Milestones include adoption of DNSSEC, introduction of internationalized domain names accommodating kanji and hiragana scripts to align with national language use, and policy shifts reflecting commercialization similar to evolutions at ICANN and regional registries like APNIC. Regulatory and legal interactions have engaged bodies such as the Ministry of Internal Affairs and Communications and courts in matters involving trademark disputes and cybersquatting linked to firms like Mitsubishi and Canon.

Structure and Administration

Administration of the .jp zone is overseen by JPRS with coordination from JPNIC and technical cooperation from research networks including the WIDE Project and the National Institute of Information and Communications Technology. The hierarchical namespace includes direct second-level registrations and structured second-level zones managed by sponsors or categories, analogous to arrangements in ccTLDs such as .uk and .au. Operational functions—WHOIS, DNS root interactions, and zone signing—are integrated with global infrastructure providers and exchanges such as the Japan Internet Exchange and mirror services in metropolitan centers like Shinjuku and Minato. Policy deliberation has involved stakeholders from corporations like NTT, registrars accredited by JPRS, and consumer groups represented in forums that mirror multistakeholder processes championed by ICANN.

Registration Policies and Restrictions

Registration under .jp requires compliance with eligibility criteria that distinguish individual, organizational, and geographic registrations, reflecting precedents from registries such as DENIC and Nominet. Legal frameworks and trademark considerations have invoked institutions like the Tokyo District Court and arbitration practices comparable to the Uniform Domain-Name Dispute-Resolution Policy overseen by providers like WIPO. Restrictions on certain second-level categories permit registration only to entities such as municipal offices like Chiyoda City Hall or educational institutions like Kyoto University. Identity verification procedures have paralleled e‑policy measures used by registries including SIDN and have evolved in response to incidents involving trademark holders like Casio and Seiko Epson.

Second-level and Sponsored Domains

The .jp space includes generic and sponsored second-level labels for specific sectors and communities: examples include organizational zones mirroring models like .gov in other countries and educational labels comparable to .ac.uk. Second-level and sponsored domains serve entities such as municipal governments (analogous to Tokyo Metropolitan Government), cultural institutions like Tokyo National Museum, media outlets such as NHK Enterprises, and commercial consortia including Keidanren. Sponsored categories enable sectoral governance by designated sponsors similar to arrangements seen with [.edu] in the United States or sponsored zones in .au.

Domain Usage and Statistics

Adoption of .jp is widespread among Japanese corporations, SMEs, municipalities, and individuals, with registrations concentrated in urban centers like Tokyo, Osaka, and Fukuoka. High-volume registrants include ecommerce and portal operators such as Rakuten, Yahoo! Japan, and cloud providers tied to NTT Communications. Metrics tracked by JPRS show growth phases associated with mobile platform proliferation from companies like NTT Docomo and service rollouts by LINE Corporation and Mercari. Comparative analyses reference ccTLD datasets from registries such as DENIC, AFNIC, and NIC.br to contextualize market share, churn, and internationalized domain name uptake by publishers like Kodansha and broadcasters like Fuji Television.

Security and Governance

Security measures in the .jp zone include deployment of DNSSEC, abuse mitigation coordinated with law enforcement agencies including the National Police Agency (Japan), and collaboration with CERT teams such as JPCERT/CC. Governance follows a multistakeholder model engaging JPRS, JPNIC, registrars, registrants, and policy contributors from academia and industry like Sony Interactive Entertainment and Mitsui. Incident response, takedown procedures, and anti‑phishing initiatives coordinate with global security communities including FIRST and standards organizations like the IETF. Ongoing governance issues address balancing trademark enforcement involving conglomerates such as Sumitomo against freedom of expression concerns championed by civil society groups and legal advocates active in venues like the Supreme Court of Japan.

Category:Country code top-level domains Category:Internet in Japan