Delegated top-level domain
.arpa
An authoritative root-zone record, classified without claims about price, popularity, eligibility, or trust.
CategoryInfrastructure
ASCII length4
RDAP bootstrapNot listed
IANA dataset2026082600
01 / WHAT THIS RECORD SAYS
Delegated means present
in the DNS root.
IANA’s list establishes that .arpa is delegated. DomainSense’s category is intentionally mechanical: two-letter labels are country codes, xn-- labels are internationalized, and .arpa is infrastructure.
The IANA bootstrap file does not currently list an HTTPS RDAP service for this TLD. That absence does not mean registration data is unavailable through every channel.
02 / REGISTRATION DATA ROUTING
Where RDAP queries begin.
No HTTPS endpoint appears in the current bootstrap record.
03 / INSPECT A NAME
Read a .arpa domain.
SAME MECHANICAL CATEGORY