IONOS / 1&1

Registrar DNS Serves 628,061 new-gTLD domains across 466 TLDs, 1.83% 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

.store — 166.16k (26.46%).online — 124.04k (19.75%).app — 39,270 (6.25%).shop — 26,411 (4.21%).cloud — 22,436 (3.57%).xyz — 12,384 (1.97%).tech — 11,372 (1.81%).club — 10,171 (1.62%).site — 7,844 (1.25%).gmbh — 7,459 (1.19%)Other — 200.51k (31.93%)
628.06kzone, 18 Aug 2026
TLD share for IONOS / 1&1
.store166.16k26.46%
.online124.04k19.75%
.app39,2706.25%
.shop26,4114.21%
.cloud22,4363.57%
.xyz12,3841.97%
.tech11,3721.81%
.club10,1711.62%
.site7,8441.25%
.gmbh7,4591.19%
Other456 more TLDs200.51k31.93%

The ten largest of 466 TLDs, with the rest combined; all of them are in the table below.

Nameservers in use

as of 18 Aug 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
ns-de.1and1-dns.com 28,937
13.7%
ns1045.ui-dns.biz 22,710
10.8%
ns1016.ui-dns.biz 13,780
6.5%
ns1017.ui-dns.biz 13,324
6.3%
ns1021.ui-dns.biz 13,132
6.2%
ns1018.ui-dns.biz 13,021
6.2%
ns1019.ui-dns.biz 12,946
6.2%
ns1023.ui-dns.biz 12,111
5.8%
ns1020.ui-dns.biz 11,880
5.6%
ns1022.ui-dns.biz 11,805
5.6%
ns1024.ui-dns.biz 11,642
5.5%
ns-us.1and1-dns.com 11,641
5.5%
ns1025.ui-dns.biz 11,582
5.5%
ns1027.ui-dns.biz 11,243
5.3%
ns1018.ui-dns.com 10,738
5.1%

Shares are of the 210,492 domains on these 15 nameservers, not of the provider's 628,061.

TLDs served

as of 18 Aug 2026
TLD Domains here Share of this provider Of the TLD
.holdings 166
0.03%
1.83%
.money 163
0.03%
0.75%
.blue 162
0.03%
1.08%
.ink 159
0.03%
0.12%
.deals 153
0.02%
1.69%
.industries 150
0.02%
2.09%
.delivery 149
0.02%
1.06%
.archi 146
0.02%
3.72%
.football 144
0.02%
2.26%
.fyi 143
0.02%
0.23%
.parts 143
0.02%
1.93%
.credit 142
0.02%
2.55%
.fund 140
0.02%
0.63%
.careers 133
0.02%
1.42%
.bet 131
0.02%
0.07%
.exchange 129
0.02%
0.72%
.dentist 123
0.02%
4.78%
.healthcare 123
0.02%
1.36%
.surf 123
0.02%
0.15%
.contractors 120
0.02%
3.43%
.apartments 118
0.02%
2.92%
.watch 118
0.02%
0.85%
.doctor 116
0.02%
1.38%
.ist 115
0.02%
1.5%
.science 113
0.02%
0.97%
.equipment 111
0.02%
2.6%
.page 111
0.02%
0.29%
.uno 110
0.02%
0.36%
.vegas 110
0.02%
0.97%
.auction 109
0.02%
1.96%
.tienda 109
0.02%
5.57%
.cash 107
0.02%
0.54%
.physio 107
0.02%
11.37%
.quebec 107
0.02%
1.49%
.shopping 105
0.02%
1.4%
.gold 104
0.02%
0.69%
.press 104
0.02%
0.56%
.fish 102
0.02%
1.75%
.miami 102
0.02%
0.85%
.supply 102
0.02%
1.31%
.shoes 100
0.02%
2.67%
.place 99
0.02%
0.96%
.engineer 96
0.02%
1.26%
.hosting 96
0.02%
4.21%
.rip 95
0.02%
0.86%
.trade 95
0.02%
0.39%
.tennis 94
0.01%
4.93%
.ski 93
0.01%
1.46%
.tattoo 92
0.01%
1.21%
.build 91
0.01%
0.78%
.moe 89
0.01%
0.52%
.codes 88
0.01%
0.45%
.vacations 86
0.01%
1.79%
.attorney 84
0.01%
1.8%
.black 83
0.01%
1.39%
.glass 83
0.01%
2.33%
.cleaning 79
0.01%
3.28%
.racing 79
0.01%
1.74%
.dating 78
0.01%
1.81%
.insure 78
0.01%
1.24%
.menu 78
0.01%
1.42%
.theater 78
0.01%
5.54%
.pics 77
0.01%
0.07%
.supplies 77
0.01%
2.83%
.accountants 76
0.01%
4.71%
.garden 75
0.01%
0.04%
.reise 75
0.01%
8.81%
.associates 73
0.01%
1.98%
.investments 73
0.01%
1%
.reviews 73
0.01%
0.66%
.luxury 72
0.01%
1.73%
.rent 72
0.01%
0.71%
.toys 72
0.01%
1.34%
.camera 71
0.01%
2.23%
.cab 70
0.01%
1.84%
.builders 69
0.01%
1.14%
.property 69
0.01%
1.34%
.lol 68
0.01%
0.01%
.beauty 67
0.01%
0.09%
.horse 65
0.01%
1.33%
.claims 63
0.01%
1.6%
.forsale 63
0.01%
1.6%
.voyage 63
0.01%
1.72%
.financial 62
0.01%
0.79%
.vin 62
0.01%
0.46%
.pink 60
0.01%
0.88%
.soccer 60
0.01%
1.64%
.kim 56
0.01%
0.71%
.vote 56
0.01%
0.9%
.lat 55
0.01%
0.03%
.salon 55
0.01%
1.3%
.sarl 54
0.01%
3.04%
.futbol 53
0.01%
2.39%
.mba 53
0.01%
1.06%
.furniture 50
0.01%
2.12%
.singles 50
0.01%
1.74%
.town 50
0.01%
0.65%
.boston 49
0.01%
1.13%
.host 49
0.01%
0.2%
.best 48
0.01%
0.08%

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 April 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.