Domain DNS is out, under Domain: the A, AAAA, MX, NS and CNAME records of every domain registered under the generic TLDs, .se, .nu, .ee, .sk and a few smaller country-code TLDs, of their www names, and of widely used names under other country codes such as .uk, .de and .fr. Each record type is a file of its own, licensed and downloaded on its own, and all five are rebuilt weekly.
A file per record type
| File | A row | Rows, October 25 |
|---|---|---|
| Domain DNS A | a name and an IPv4 address it resolves to | 465,971,752 |
| Domain DNS AAAA | a name and an IPv6 address it resolves to | 126,358,893 |
| Domain DNS MX | a name, a mail exchanger and its priority | 252,164,137 |
| Domain DNS NS | a name and a nameserver it's delegated to | 653,435,475 |
| Domain DNS CNAME | an alias and the name it points to | 120,091,929 |
| All five | 1,618,022,186 |
Every file has name and last_seen, the most recent day the record was seen, so the five join on name. Rows from each:
| File | name | The record | last_seen |
|---|---|---|---|
| A | beardbrews.com | 3.33.251.168 | 2026-10-10 |
| A | www.buybuy-center.com | 198.185.159.144 | 2026-10-11 |
| AAAA | charlie-cloud.net | 2606:4700:3030::ac43:99c5 | 2026-10-11 |
| MX | clabcomunicazione.it | 10, alt3.aspmx.l.google.com | 2026-10-10 |
| MX | artekolsanat.xyz | 0, . | 2026-10-13 |
| NS | hotshop.dev | carla.ns.cloudflare.com | 2026-10-12 |
| CNAME | www.acrecandleco.com | shops.myshopify.com | 2026-10-14 |
An A or AAAA row's ip is always an address: a name under a CNAME lists the addresses its chain ends at, and the chain is in the CNAME file, a row per hop. An MX host of . is a null MX (RFC 7505), the domain saying it takes no mail.
A www name has A and AAAA rows only where its addresses differ from its domain's. On October 25, 205,654,369 www names resolved beside their domain, 173,500,406 of them (84.4%) to exactly the domain's IPv4 addresses, and those have no A rows. Every www CNAME stays in the CNAME file.
Who hosts the sites and the mail
Of the 112,404,379 www names with a CNAME, 47,660,722 point outside their own domain, and the target's owner is the platform the site runs on, or the registrar parking it:
www CNAME target | www names |
|---|---|
Squarespace (squarespace.com) | 8,006,041 |
Wix (wixdns.net) | 6,092,339 |
Namecheap's parking page (parkingpage.namecheap.com) | 4,051,410 |
Shopify (myshopify.com) | 3,774,089 |
Hostinger (hstgr.net, hostinger.com) | 3,294,217 |
Vercel (vercel-dns.com, vercel-dns-017.com and others) | 1,939,515 |
122,400,908 names publish MX records, and 13,902,639 of them only a null MX. By the owner of the mail exchanger:
| Mail exchanger | Names |
|---|---|
| 17,851,510 | |
Microsoft (outlook.com) | 10,608,415 |
GoDaddy (secureserver.net) | 8,502,249 |
Namecheap (registrar-servers.com, privateemail.com) | 8,050,495 |
| IONOS | 4,885,614 |
| Hostinger | 3,041,414 |
In the NS file, 268,593,945 names are delegated, 47,878,120 of them to GoDaddy's domaincontrol.com nameservers and 42,086,028 to Cloudflare's.
Getting access
Domain DNS ships as CSV, each file rebuilt weekly with its own docs page, linked in the table above. Sign up to evaluate it from its sample. Each file is licensed on its own and never metered: see licensing, or talk to us about what you need. In BigQuery, the five are one product.
