Registry backends

Which technical registry service provider actually serves each new gTLD's DNS. ICANN publishes no TLD-to-backend mapping, so this is inferred from three signals: the root-zone nameserver hostnames, the RDAP endpoint from IANA's bootstrap file, and — for TLDs running vanity hostnames — the reverse DNS of those nameservers' addresses.

1,090 TLDs attributed across 26 platforms. 24 remain unattributed — brand TLDs whose vanity nameservers and RDAP endpoints reveal nothing about who operates them. They are counted here rather than quietly dropped. How the inference works.

Backend concentration

Source: ICANN monthly registry reports

A handful of platforms serve the DNS for most of the new-gTLD namespace. Share of all new-gTLD domains by technical backend, from ICANN's monthly registry reports. Each TLD is attributed to the platform serving it today — nothing records who ran a TLD's DNS in 2016 — so this is volume on today's platforms over time, not who served it at the time.

Month Jun 2025 latest
GoDaddy Registry (Neustar) — 11.31M (25.13%)CentralNic (Team Internet) — 10.45M (23.21%)Identity Digital — 7.35M (16.32%)ZDNS — 5.23M (11.62%)ARI Registry Services (GoDaddy Registry) — 4.27M (9.48%)GMO Registry — 3.86M (8.56%)Google Registry — 1.50M (3.33%)fury.ca — 380.84k (0.85%)Knipp / TANGO Registry — 150.25k (0.33%)AFNIC — 118.37k (0.26%)Other — 406.17k (0.9%)
45.02Mreported Jun 2025
Share of new-gTLD domains by backend
GoDaddy Registry (Neustar)53 TLDs11.31M25.13%
CentralNic (Team Internet)87 TLDs10.45M23.21%
Identity Digital441 TLDs7.35M16.32%
ZDNS32 TLDs5.23M11.62%
ARI Registry Services (GoDaddy Registry)204 TLDs4.27M9.48%
GMO Registry46 TLDs3.86M8.56%
Google Registry46 TLDs1.50M3.33%
fury.ca5 TLDs380.84k0.85%
Knipp / TANGO Registry27 TLDs150.25k0.33%
AFNIC10 TLDs118.37k0.26%
Other13 more backends406.17k0.9%

By domains served

Source: Daily zone files and ICANN monthly registry reports

Bar length is domains; the TLD count is shown alongside because the two rank very differently.

7.32M
ZDNS 32 TLDs
6.56M
GMO Registry 46 TLDs
4.45M
2.56M
fury.ca 5 TLDs
386.09k
Nominet 78 TLDs
140.77k
140.46k
AFNIC 11 TLDs
118.79k
60,808
RyCE 4 TLDs
43,230
KNET 9 TLDs
35,790

All backends

#BackendTLDsDomainsSource
1 CentralNic (Team Internet) 87 17,649,922 curated
2 GoDaddy Registry (Neustar) 55 11,521,888 curated
3 Identity Digital 441 7,315,707 curated
4 ZDNS 32 6,564,368 curated
5 ARI Registry Services (GoDaddy Registry) 204 5,238,129 curated
6 GMO Registry 46 4,445,313 curated
7 Google Registry 46 2,561,602 curated
8 fury.ca inferred 5 386,093 rdap_host shared by 5 TLDs
9 Nominet 78 140,770 curated
10 Knipp / TANGO Registry 27 140,462 curated
11 AFNIC 11 118,789 curated
12 dnsnode.net inferred 2 60,808 ns_suffix shared by 16 TLDs
13 Public Interest Registry 10 49,449 curated
14 RyCE 4 43,230 curated
15 KNET 9 35,790 curated
16 FlexiReg 2 28,618 curated
17 anycastdns.cz inferred 1 16,800 ns_suffix shared by 25 TLDs
18 dns.net.za inferred 3 7,295 ns_suffix shared by 7 TLDs
19 Verisign 14 6,556 curated
20 ripn.net inferred 2 2,217 ns_suffix shared by 25 TLDs
21 NIC.br 5 905 curated
22 pch.net inferred 1 75 ns_suffix shared by 17 TLDs
23 aka-ns.net inferred 2 4 ns_suffix shared by 12 TLDs
24 ns.il inferred 1 ns_suffix shared by 6 TLDs
25 ntc.org.pk inferred 1 ns_suffix shared by 3 TLDs
26 monic.mo inferred 1 ns_suffix shared by 5 TLDs

Data currency. Domain counts on this page are from zone files dated and refresh daily. Registrar figures are from ICANN's monthly registry reports for May 2026, which ICANN publishes about three months in arrears; zone files contain no registrar information, so no fresher source exists. Full detail on methodology and live pipeline status.