nTLDData legacy TLDs too :)

IONOS / 1&1

Registrar DNS Serves 4,904,546 gTLD domains across 495 TLDs, 3% of all domains whose nameservers we can attribute. www.ionos.com/

New gTLDs Legacy gTLDs All gTLDs
The registrar's own nameservers, used by default for domains that have not been pointed elsewhere — which includes both active sites and domains doing nothing at all.

How domains are attributed here

A domain counts towards IONOS / 1&1 when one of its nameservers ends in one of these suffixes. Matching is on the name in the zone's NS records only — nothing is resolved or fetched. Listed by weight, which is the order the classifier tries them in so a specific suffix beats a broader one.

Nameserver suffixWeight
1and1-dns.com 10
ui-dns.biz 10
ui-dns.com 10
ui-dns.de 10
ui-dns.org 10

Where its domains are

Source: Daily zone files

.com — 3.23M (65.81%).org — 390.96k (7.97%).info — 292.68k (5.97%).net — 285.75k (5.83%).store — 182.28k (3.72%).online — 119.67k (2.44%).app — 40,902 (0.83%).biz — 27,460 (0.56%).shop — 27,269 (0.56%).cloud — 21,025 (0.43%)Other — 289.04k (5.89%)
4.90Mzone, 17 Oct 2026
.com3.23M65.81%
.org390.96k7.97%
.info292.68k5.97%
.net285.75k5.83%
.store182.28k3.72%
.online119.67k2.44%
.app40,9020.83%
.biz27,4600.56%
.shop27,2690.56%
.cloud21,0250.43%
Other485 more TLDs289.04k5.89%

The ten largest of 495 TLDs, with the rest combined; all of them are in the table below.

Nameservers in use

as of 17 Oct 2026

The hostnames actually found in the zones, with how many domains name each. The suffixes above are the rule; these are what the rule matched. Counted across all gTLDs rather than the current scope, since the aggregate is built in one pass over every zone. Showing the fifteen largest.

Nameserver Domains Share of these
ns1045.ui-dns.biz 97,473
15.7%
ns1016.ui-dns.biz 42,377
6.8%
ns1017.ui-dns.biz 41,332
6.6%
ns1018.ui-dns.biz 40,150
6.4%
ns1019.ui-dns.biz 40,009
6.4%
ns1021.ui-dns.biz 39,809
6.4%
ns1020.ui-dns.biz 37,720
6.1%
ns1022.ui-dns.biz 36,894
5.9%
ns1023.ui-dns.biz 36,730
5.9%
ns1024.ui-dns.biz 36,569
5.9%
ns1025.ui-dns.biz 36,524
5.9%
ns1027.ui-dns.biz 35,687
5.7%
ns-de.1and1-dns.com 34,415
5.5%
ns1028.ui-dns.biz 33,543
5.4%
ns1026.ui-dns.biz 33,266
5.3%

These 15 nameservers carry 622,498 of the 4,904,596 domains this provider serves across every zone we parse, which spans new and legacy gTLDs together — more than the 4,904,546 counted under gTLDs alone.

TLDs served

as of 17 Oct 2026
TLD Domains here Share of this provider Of the TLD
.com 3,227,507
65.81%
1.92%
.org 390,962
7.97%
3.2%
.info 292,679
5.97%
5.69%
.net 285,754
5.83%
2.3%
.store 182,276
3.72%
8.76%
.online 119,673
2.44%
3.32%
.app 40,902
0.83%
2.33%
.biz 27,460
0.56%
2.11%
.shop 27,269
0.56%
0.64%
.cloud 21,025
0.43%
3.72%
.global 12,789
0.26%
16.13%
.tech 11,337
0.23%
1.91%
.xyz 10,019
0.2%
0.09%
.club 9,924
0.2%
1.79%
.berlin 8,953
0.18%
21.01%
.site 8,105
0.17%
0.42%
.name 7,893
0.16%
10.95%
.pro 7,618
0.16%
0.66%
.gmbh 7,254
0.15%
21.89%
.dev 6,663
0.14%
0.84%
.website 5,475
0.11%
2.28%
.srl 5,023
0.1%
39.43%
.art 4,623
0.09%
1.49%
.icu 4,617
0.09%
0.83%
.studio 4,595
0.09%
2.2%
.cat 4,465
0.09%
3.79%
.nrw 4,240
0.09%
23.61%
.email 4,029
0.08%
3.23%
.space 3,690
0.08%
0.63%
.life 3,623
0.07%
0.83%
.bayern 3,597
0.07%
12.94%
.world 3,348
0.07%
0.78%
.fun 3,220
0.07%
0.8%
.koeln 3,217
0.07%
19.28%
.immo 3,185
0.06%
14.51%
.one 3,119
0.06%
1.18%
.solutions 3,042
0.06%
3%
.mobi 3,019
0.06%
1.45%
.hamburg 2,910
0.06%
19.76%
.digital 2,882
0.06%
0.63%
.group 2,868
0.06%
2.28%
.scot 2,538
0.05%
18.85%
.consulting 2,444
0.05%
6.14%
.live 2,347
0.05%
0.38%
.london 2,326
0.05%
6.56%
.blog 2,290
0.05%
0.62%
.media 2,141
0.04%
2.09%
.services 2,070
0.04%
2.43%
.academy 2,068
0.04%
3.22%
.agency 2,033
0.04%
1.65%
.ltd 1,996
0.04%
1.77%
.rocks 1,812
0.04%
3.45%
.wales 1,673
0.03%
12.86%
.team 1,665
0.03%
2.26%
.nyc 1,501
0.03%
2.48%
.immobilien 1,497
0.03%
19.99%
.paris 1,486
0.03%
7.77%
.events 1,485
0.03%
4.03%
.design 1,440
0.03%
1.25%
.jetzt 1,362
0.03%
11.62%
.family 1,314
0.03%
3.39%
.care 1,265
0.03%
2.62%
.photography 1,258
0.03%
3.8%
.news 1,244
0.03%
1.63%
.center 1,171
0.02%
2.42%
.legal 1,163
0.02%
5.05%
.education 1,145
0.02%
3.81%
.coach 1,138
0.02%
4.22%
.systems 1,092
0.02%
2.35%
.bio 1,047
0.02%
1.44%
.expert 1,042
0.02%
3.87%
.network 1,012
0.02%
1.28%
.business 959
0.02%
2.38%
.company 950
0.02%
0.96%
.ruhr 950
0.02%
21.91%
.training 943
0.02%
4.11%
.energy 909
0.02%
3.14%
.church 866
0.02%
2.53%
.international 858
0.02%
3.35%
.plus 816
0.02%
2.04%
.today 810
0.02%
0.69%
.link 796
0.02%
0.3%
.games 792
0.02%
0.96%
.marketing 786
0.02%
2.79%
.support 786
0.02%
2%
.technology 747
0.02%
2.21%
.work 747
0.02%
0.22%
.community 737
0.02%
2.93%
.tips 727
0.01%
3.92%
.earth 718
0.01%
1.76%
.saarland 700
0.01%
18.78%
.software 688
0.01%
2.6%
.gallery 687
0.01%
3.86%
.law 659
0.01%
2.6%
.management 649
0.01%
5.3%
.cologne 647
0.01%
17.17%
.cymru 644
0.01%
7.37%
.asia 642
0.01%
0.09%
.coffee 628
0.01%
2.23%
.eus 623
0.01%
3.82%

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 June 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.