TLD Notes

Field Guide to Domains

Field Guide to Domains — A TLD Explorer

This site is an observational record and does not endorse any specific domain.

.jp vs .co.jp

The perennial domain debate in the Japanese market. The flexible .jp versus the corporate-only .co.jp.

.jp Classical Era

The general-purpose JP domain for the Japanese market. Available to individuals. A staple for domestic services.

Prevalence
68
Vibe Tags
Domestic Reassuring Versatile
Specimen Count 27
Caution

May require rebranding when expanding internationally.

Observer's Note

An endemic species of the island ecosystem. Perfectly adapted to the distinct niche of Japanese-speaking users.

.co.jp Classical Era

Restricted to Japanese corporations. One domain per organization. The strongest trust signal in Japan.

Prevalence
62
Vibe Tags
Corp Only Highest Trust Japan
Specimen Count 26
Caution

Requires legal corporate status. Strictly one domain per entity.

Observer's Note

Armored like a fortress. Only those bearing the credential of corporate personhood may don this shell.

Observation Axes

.jp .co.jp
Registration Requirements Open to anyone with a Japanese address — individuals and businesses alike. Registered Japanese corporations only. One domain per legal entity.
Trust Signal Signals Japan affiliation. Versatile across all sectors. Corporate exclusivity acts as quality assurance. Especially strong in B2B, finance, and government.
Naming Flexibility High. brand.jp is short and puts the brand name front and center. Somewhat restricted. brand.co.jp is longer and harder to communicate verbally.
Target Market Startups, sole proprietors, creators, local media. Listed companies, financial institutions, government services, B2B SaaS.
Cost Approx. ¥3,000-5,000/yr. Affordable. Approx. ¥4,000-8,000/yr. Indirect cost of maintaining corporate registration.

Verdict

Choose .co.jp to maximize trust in the Japanese market with corporate credentials. Choose .jp for flexibility and branding freedom.

Snapshot: 2026-03