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IONOS / 1&1

Registrar DNS Serves 4,923,637 gTLD domains across 495 TLDs, 2.98% 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 (65.66%).org — 392.31k (7.97%).info — 299.39k (6.08%).net — 284.98k (5.79%).store — 187.38k (3.81%).online — 119.34k (2.42%).app — 41,687 (0.85%).shop — 27,621 (0.56%).biz — 27,230 (0.55%).cloud — 21,283 (0.43%)Other — 289.52k (5.88%)
4.92Mzone, 10 Nov 2026
.com3.23M65.66%
.org392.31k7.97%
.info299.39k6.08%
.net284.98k5.79%
.store187.38k3.81%
.online119.34k2.42%
.app41,6870.85%
.shop27,6210.56%
.biz27,2300.55%
.cloud21,2830.43%
Other485 more TLDs289.52k5.88%

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

Nameservers in use

as of 10 Nov 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 97,304
15.6%
ns1016.ui-dns.biz 42,573
6.8%
ns1017.ui-dns.biz 41,397
6.6%
ns1019.ui-dns.biz 40,337
6.5%
ns1018.ui-dns.biz 40,327
6.5%
ns1021.ui-dns.biz 39,899
6.4%
ns1020.ui-dns.biz 37,696
6%
ns1022.ui-dns.biz 37,112
6%
ns1023.ui-dns.biz 36,722
5.9%
ns1025.ui-dns.biz 36,668
5.9%
ns1024.ui-dns.biz 36,636
5.9%
ns1027.ui-dns.biz 35,338
5.7%
ns-de.1and1-dns.com 34,240
5.5%
ns1026.ui-dns.biz 33,592
5.4%
ns1028.ui-dns.biz 33,287
5.3%

These 15 nameservers carry 623,128 of the 4,923,686 domains this provider serves across every zone we parse, which spans new and legacy gTLDs together — more than the 4,923,637 counted under gTLDs alone.

TLDs served

as of 10 Nov 2026
TLD Domains here Share of this provider Of the TLD
.com 3,232,894
65.66%
1.91%
.org 392,306
7.97%
3.2%
.info 299,393
6.08%
5.97%
.net 284,983
5.79%
2.29%
.store 187,378
3.81%
9.02%
.online 119,343
2.42%
3.26%
.app 41,687
0.85%
2.26%
.shop 27,621
0.56%
0.66%
.biz 27,230
0.55%
2.1%
.cloud 21,283
0.43%
3.69%
.global 12,890
0.26%
16.18%
.tech 11,289
0.23%
1.84%
.xyz 9,902
0.2%
0.09%
.club 9,837
0.2%
1.78%
.berlin 8,966
0.18%
21.07%
.site 8,219
0.17%
0.42%
.name 7,861
0.16%
10.92%
.pro 7,712
0.16%
0.66%
.gmbh 7,248
0.15%
21.82%
.dev 6,712
0.14%
0.82%
.website 5,553
0.11%
2.28%
.srl 5,027
0.1%
39.43%
.icu 4,826
0.1%
0.88%
.art 4,684
0.1%
1.49%
.studio 4,635
0.09%
2.16%
.cat 4,463
0.09%
3.78%
.nrw 4,213
0.09%
23.45%
.email 4,054
0.08%
3.25%
.space 3,706
0.08%
0.62%
.life 3,651
0.07%
0.84%
.bayern 3,595
0.07%
12.94%
.world 3,393
0.07%
0.78%
.fun 3,328
0.07%
0.81%
.immo 3,223
0.07%
14.55%
.koeln 3,216
0.07%
19.6%
.one 3,135
0.06%
1.18%
.solutions 3,054
0.06%
2.97%
.mobi 2,982
0.06%
1.44%
.hamburg 2,910
0.06%
19.75%
.digital 2,893
0.06%
0.63%
.group 2,872
0.06%
2.29%
.scot 2,551
0.05%
18.96%
.consulting 2,424
0.05%
6.08%
.live 2,338
0.05%
0.37%
.london 2,319
0.05%
6.54%
.blog 2,267
0.05%
0.61%
.media 2,154
0.04%
2.1%
.academy 2,078
0.04%
3.22%
.services 2,047
0.04%
2.41%
.agency 2,035
0.04%
1.63%
.ltd 1,991
0.04%
1.74%
.rocks 1,817
0.04%
3.46%
.team 1,672
0.03%
2.22%
.wales 1,671
0.03%
12.82%
.immobilien 1,496
0.03%
19.95%
.paris 1,495
0.03%
7.81%
.nyc 1,487
0.03%
2.44%
.events 1,483
0.03%
3.99%
.design 1,426
0.03%
1.23%
.jetzt 1,363
0.03%
11.62%
.care 1,347
0.03%
2.76%
.family 1,320
0.03%
3.36%
.photography 1,267
0.03%
3.84%
.news 1,234
0.03%
1.61%
.legal 1,174
0.02%
5.04%
.center 1,168
0.02%
2.43%
.coach 1,135
0.02%
4.16%
.education 1,130
0.02%
3.75%
.systems 1,094
0.02%
2.32%
.bio 1,051
0.02%
1.44%
.expert 1,037
0.02%
3.87%
.network 1,010
0.02%
1.28%
.business 960
0.02%
2.26%
.company 953
0.02%
0.9%
.ruhr 943
0.02%
21.78%
.training 932
0.02%
4.07%
.energy 914
0.02%
3.13%
.church 859
0.02%
2.51%
.international 846
0.02%
3.29%
.plus 818
0.02%
2.03%
.games 808
0.02%
0.92%
.today 801
0.02%
0.69%
.support 786
0.02%
1.99%
.link 784
0.02%
0.33%
.marketing 780
0.02%
2.76%
.work 742
0.02%
0.21%
.technology 740
0.02%
2.18%
.community 726
0.01%
2.87%
.tips 717
0.01%
3.89%
.earth 714
0.01%
1.68%
.saarland 692
0.01%
18.66%
.software 690
0.01%
2.58%
.gallery 678
0.01%
3.8%
.law 657
0.01%
2.54%
.asia 646
0.01%
0.09%
.management 646
0.01%
5.26%
.cologne 645
0.01%
17.2%
.cymru 640
0.01%
7.27%
.coffee 628
0.01%
2.22%
.eus 624
0.01%
3.81%

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 July 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.