IONOS / 1&1

Registrar DNS Serves 649,388 new-gTLD domains across 476 TLDs, 1.82% of all domains whose nameservers we can attribute. www.ionos.com/

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

.store — 175.13k (26.97%).online — 121.60k (18.73%).app — 39,873 (6.14%).shop — 27,161 (4.18%).cloud — 21,506 (3.31%).tech — 11,388 (1.75%).xyz — 11,200 (1.72%).global — 10,442 (1.61%).club — 10,041 (1.55%).berlin — 8,965 (1.38%)Other — 212.08k (32.66%)
649.39kzone, 18 Sep 2026
TLD share for IONOS / 1&1
.store175.13k26.97%
.online121.60k18.73%
.app39,8736.14%
.shop27,1614.18%
.cloud21,5063.31%
.tech11,3881.75%
.xyz11,2001.72%
.global10,4421.61%
.club10,0411.55%
.berlin8,9651.38%
Other466 more TLDs212.08k32.66%

The ten largest of 476 TLDs, with the rest combined; all of them are in the table below.

Nameservers in use

as of 18 Sep 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 97,294
15.7%
ns1016.ui-dns.biz 42,046
6.8%
ns1017.ui-dns.biz 41,195
6.6%
ns1018.ui-dns.biz 39,856
6.4%
ns1019.ui-dns.biz 39,827
6.4%
ns1021.ui-dns.biz 39,487
6.4%
ns1020.ui-dns.biz 37,630
6.1%
ns1022.ui-dns.biz 37,075
6%
ns1023.ui-dns.biz 36,585
5.9%
ns1024.ui-dns.biz 36,377
5.9%
ns1025.ui-dns.biz 36,185
5.8%
ns1027.ui-dns.biz 35,466
5.7%
ns-de.1and1-dns.com 34,862
5.6%
ns1026.ui-dns.biz 33,471
5.4%
ns1028.ui-dns.biz 33,424
5.4%

These 15 nameservers carry 620,780 of the 4,882,343 domains this provider serves across every zone we parse, which spans new and legacy gTLDs together — more than the 649,388 counted under new gTLDs alone.

TLDs served

as of 18 Sep 2026
TLD Domains here Share of this provider Of the TLD
.games 765
0.12%
0.98%
.support 788
0.12%
1.99%
.marketing 790
0.12%
2.8%
.link 798
0.12%
0.28%
.plus 820
0.13%
2.08%
.today 820
0.13%
0.68%
.international 864
0.13%
3.39%
.church 872
0.13%
2.56%
.energy 902
0.14%
3.14%
.ruhr 947
0.15%
21.87%
.training 953
0.15%
4.27%
.company 958
0.15%
0.99%
.business 963
0.15%
2.46%
.network 1,026
0.16%
1.3%
.bio 1,042
0.16%
1.45%
.expert 1,048
0.16%
3.89%
.systems 1,092
0.17%
2.41%
.education 1,140
0.18%
3.86%
.coach 1,141
0.18%
4.31%
.legal 1,157
0.18%
5.11%
.center 1,179
0.18%
2.43%
.photography 1,249
0.19%
3.77%
.news 1,252
0.19%
1.65%
.care 1,266
0.19%
2.67%
.family 1,326
0.2%
3.53%
.jetzt 1,346
0.21%
11.72%
.design 1,455
0.22%
1.27%
.events 1,490
0.23%
4.1%
.immobilien 1,495
0.23%
20.05%
.paris 1,495
0.23%
7.84%
.nyc 1,520
0.23%
2.52%
.team 1,671
0.26%
2.36%
.wales 1,678
0.26%
12.92%
.rocks 1,785
0.27%
3.39%
.ltd 2,009
0.31%
1.79%
.agency 2,041
0.31%
1.68%
.academy 2,082
0.32%
3.25%
.services 2,120
0.33%
2.48%
.media 2,141
0.33%
2.11%
.blog 2,317
0.36%
0.63%
.live 2,329
0.36%
0.38%
.london 2,331
0.36%
6.54%
.consulting 2,467
0.38%
6.21%
.scot 2,574
0.4%
19.14%
.group 2,862
0.44%
2.28%
.digital 2,866
0.44%
0.63%
.hamburg 2,928
0.45%
19.67%
.solutions 3,066
0.47%
3.04%
.one 3,103
0.48%
1.19%
.fun 3,172
0.49%
0.82%
.immo 3,179
0.49%
14.6%
.koeln 3,241
0.5%
19.36%
.world 3,343
0.51%
0.8%
.life 3,589
0.55%
0.82%
.space 3,656
0.56%
0.64%
.bayern 3,686
0.57%
13.21%
.email 4,021
0.62%
3.21%
.nrw 4,269
0.66%
23.79%
.icu 4,291
0.66%
0.76%
.studio 4,491
0.69%
2.21%
.art 4,574
0.7%
1.5%
.srl 4,935
0.76%
39.04%
.website 5,538
0.85%
2.34%
.dev 6,647
1.02%
0.87%
.gmbh 7,337
1.13%
22.15%
.site 7,899
1.22%
0.41%
.berlin 8,965
1.38%
21.05%
.club 10,041
1.55%
1.83%
.global 10,442
1.61%
13.66%
.xyz 11,200
1.72%
0.11%
.tech 11,388
1.75%
1.99%
.cloud 21,506
3.31%
3.92%
.shop 27,161
4.18%
0.62%
.app 39,873
6.14%
2.42%
.online 121,604
18.73%
3.43%
.store 175,130
26.97%
8.42%

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.