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 Jan 2026 latest
CentralNic (Team Internet) — 15.39M (28.69%)GoDaddy Registry (Neustar) — 12.30M (22.94%)Identity Digital — 7.33M (13.67%)ZDNS — 6.75M (12.59%)ARI Registry Services (GoDaddy Registry) — 4.52M (8.43%)GMO Registry — 4.40M (8.21%)Google Registry — 1.82M (3.39%)fury.ca — 418.78k (0.78%)Knipp / TANGO Registry — 150.54k (0.28%)Nominet — 131.33k (0.24%)Other — 406.00k (0.76%)
53.63Mreported Jan 2026
Share of new-gTLD domains by backend
CentralNic (Team Internet)87 TLDs15.39M28.69%
GoDaddy Registry (Neustar)53 TLDs12.30M22.94%
Identity Digital441 TLDs7.33M13.67%
ZDNS32 TLDs6.75M12.59%
ARI Registry Services (GoDaddy Registry)204 TLDs4.52M8.43%
GMO Registry46 TLDs4.40M8.21%
Google Registry46 TLDs1.82M3.39%
fury.ca5 TLDs418.78k0.78%
Knipp / TANGO Registry27 TLDs150.54k0.28%
Nominet74 TLDs131.33k0.24%
Other13 more backends406.00k0.76%

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.

ZDNS 32 TLDs
7.56M
7.30M
GMO Registry 46 TLDs
4.68M
2.55M
fury.ca 5 TLDs
419.19k
149.76k
Nominet 78 TLDs
141.86k
AFNIC 11 TLDs
123.95k
58,801
RyCE 4 TLDs
44,870
KNET 9 TLDs
40,865

All backends

#BackendTLDsDomainsSource
1 CentralNic (Team Internet) 87 16,187,353 curated
2 GoDaddy Registry (Neustar) 55 12,118,748 curated
3 ZDNS 32 7,556,339 curated
4 Identity Digital 441 7,304,084 curated
5 ARI Registry Services (GoDaddy Registry) 204 5,047,928 curated
6 GMO Registry 46 4,683,121 curated
7 Google Registry 46 2,553,830 curated
8 fury.ca inferred 5 419,188 rdap_host shared by 5 TLDs
9 Knipp / TANGO Registry 27 149,763 curated
10 Nominet 78 141,858 curated
11 AFNIC 11 123,948 curated
12 dnsnode.net inferred 2 58,801 ns_suffix shared by 16 TLDs
13 Public Interest Registry 10 57,040 curated
14 RyCE 4 44,870 curated
15 KNET 9 40,865 curated
16 FlexiReg 2 28,618 curated
17 anycastdns.cz inferred 1 19,210 ns_suffix shared by 25 TLDs
18 Verisign 14 9,687 curated
19 dns.net.za inferred 3 7,461 ns_suffix shared by 7 TLDs
20 ripn.net inferred 2 2,757 ns_suffix shared by 25 TLDs
21 NIC.br 5 908 curated
22 pch.net inferred 1 74 ns_suffix shared by 17 TLDs
23 aka-ns.net inferred 2 3 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.