InternetDataInternetData
Domain DNSDomain DNS NS

Domain DNS NS

The nameservers each domain is delegated to, one per row.

Explore API
IDdomain_dns_ns_v1
Formatscsvgz
Update FrequencyWeekly
Last UpdatedOctober 16th 2026 (today)
Entries639,457,595
File Size (csvgz)3.74 GB

Overview

The nameservers each name is delegated to, one row per name and nameserver. Only a name's own delegation is listed: a name under a CNAME has no rows of its target's.

Names are domains registered under the generic top-level domains, their www names, and widely used names under country-code domains such as .uk and .de: lowercase, internationalized ones in punycode (xn--).

last_seen is the most recent day the delegation was observed.

Formats

curl -L -o domain_dns_ns_v1.csv.gz -X GET "https://internetdata.io/api/v2/database/download?id=domain_dns_ns_v1&format=csvgz&apikey=$APIKEY"
Schema
NameTypeDescription
namestringThe domain or host name, lowercase, internationalized names in punycode (xn--).
hoststringA nameserver the name is delegated to. A domain with several has a row for each.
last_seendateThe most recent day this delegation was observed.
Samples
namehostlast_seen
sharesurf.xyzns5.afternic.com2026-10-12
slotasiacuan934.siteclyde.ns.cloudflare.com2026-10-12
prizmabet857.comns29.domaincontrol.com2026-10-12
freewrapmjn.clickruben.ns.cloudflare.com2026-10-12
interviewsdefi.xyzns5.afternic.com2026-10-12

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