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
.camera 71
0.01%
2.21%
.investments 71
0.01%
0.98%
.rent 71
0.01%
0.65%
.toys 71
0.01%
1.33%
.garden 72
0.01%
0.03%
.reviews 72
0.01%
0.65%
.associates 75
0.01%
2.03%
.pics 75
0.01%
0.06%
.reise 75
0.01%
9.03%
.accountants 76
0.01%
4.73%
.supplies 76
0.01%
2.79%
.theater 76
0.01%
5.37%
.cleaning 77
0.01%
3.2%
.insure 77
0.01%
1.22%
.dating 78
0.01%
1.8%
.menu 79
0.01%
1.43%
.racing 80
0.01%
1.73%
.attorney 81
0.01%
1.73%
.black 83
0.01%
1.4%
.glass 83
0.01%
2.33%
.codes 84
0.01%
0.42%
.vacations 86
0.01%
2.76%
.moe 88
0.01%
0.51%
.build 90
0.01%
0.73%
.tattoo 92
0.01%
1.11%
.rip 94
0.01%
0.85%
.tennis 94
0.01%
4.84%
.ski 95
0.01%
1.49%
.hosting 96
0.01%
4.23%
.trade 97
0.01%
0.37%
.place 98
0.02%
0.95%
.shoes 99
0.02%
2.67%
.fish 100
0.02%
1.71%
.miami 100
0.02%
0.84%
.engineer 101
0.02%
1.32%
.supply 101
0.02%
1.27%
.shopping 103
0.02%
1.37%
.cash 105
0.02%
0.51%
.gold 105
0.02%
0.7%
.physio 105
0.02%
11.16%
.press 105
0.02%
0.56%
.vegas 105
0.02%
0.92%
.auction 106
0.02%
1.87%
.equipment 107
0.02%
2.5%
.quebec 108
0.02%
1.5%
.tienda 108
0.02%
5.51%
.uno 110
0.02%
0.38%
.doctor 112
0.02%
1.33%
.ist 112
0.02%
1.45%
.science 113
0.02%
0.96%
.apartments 116
0.02%
2.88%
.page 116
0.02%
0.3%
.watch 117
0.02%
0.82%
.contractors 121
0.02%
3.46%
.dentist 121
0.02%
4.71%
.surf 123
0.02%
0.14%
.healthcare 124
0.02%
1.37%
.exchange 130
0.02%
0.69%
.bet 132
0.02%
0.07%
.careers 133
0.02%
1.43%
.fund 138
0.02%
0.62%
.credit 142
0.02%
2.52%
.football 143
0.02%
2.22%
.fyi 143
0.02%
0.23%
.parts 143
0.02%
1.92%
.archi 145
0.02%
3.68%
.delivery 149
0.02%
1.03%
.industries 149
0.02%
2.06%
.deals 154
0.02%
1.69%
.ink 158
0.02%
0.11%
.blue 160
0.02%
1.07%
.holdings 163
0.03%
1.78%
.money 163
0.03%
0.74%
.pizza 165
0.03%
1.63%
.alsace 166
0.03%
7.2%
.wedding 168
0.03%
1.37%
.university 171
0.03%
2.15%
.construction 177
0.03%
1.89%
.casa 179
0.03%
0.2%
.enterprises 181
0.03%
1.78%
.graphics 183
0.03%
3.42%
.rentals 186
0.03%
1.49%
.domains 187
0.03%
2.54%
.pictures 190
0.03%
2.3%
.report 190
0.03%
1.61%
.discount 191
0.03%
5.82%
.versicherung 191
0.03%
15.55%
.film 194
0.03%
2.67%
.style 194
0.03%
1.69%
.red 195
0.03%
1.07%
.repair 197
0.03%
2.27%
.cards 198
0.03%
1.36%
.green 201
0.03%
2.41%
.kitchen 202
0.03%
2.68%
.ninja 202
0.03%
0.85%
.camp 203
0.03%
2.57%
.gratis 203
0.03%
6.71%
.holiday 204
0.03%
5.94%
.beer 207
0.03%
0.11%
.audio 208
0.03%
3.72%

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.