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
.works 553
0.09%
1.46%
.cafe 545
0.09%
2.18%
.city 537
0.09%
1.69%
.band 509
0.08%
2.57%
.capital 496
0.08%
1.37%
.zone 492
0.08%
1.26%
.photos 487
0.08%
2.57%
.gmx 477
0.08%
99.79%
.solar 458
0.07%
4.86%
.madrid 453
0.07%
14.15%
.institute 452
0.07%
2.09%
.fit 444
0.07%
0.53%
.reisen 438
0.07%
10.54%
.dental 426
0.07%
4.84%
.house 422
0.07%
1.68%
.tools 406
0.06%
1.36%
.guide 391
0.06%
1.97%
.dog 381
0.06%
2.12%
.fitness 375
0.06%
2.79%
.partners 373
0.06%
2.16%
.finance 367
0.06%
1.09%
.direct 366
0.06%
2.97%
.love 356
0.06%
0.56%
.restaurant 351
0.06%
4.17%
.onl 350
0.06%
0.62%
.taxi 348
0.06%
5.14%
.vision 344
0.05%
3.03%
.video 336
0.05%
1.35%
.wine 330
0.05%
1.45%
.estate 329
0.05%
2.9%
.promo 329
0.05%
4.93%
.farm 321
0.05%
1.18%
.ventures 320
0.05%
1.34%
.barcelona 308
0.05%
6.75%
.limited 308
0.05%
4.59%
.bar 305
0.05%
0.7%
.dance 300
0.05%
3.52%
.golf 300
0.05%
1.61%
.wtf 299
0.05%
0.7%
.market 297
0.05%
1.57%
.boutique 296
0.05%
1.61%
.show 296
0.05%
1.58%
.clinic 295
0.05%
1.58%
.yoga 290
0.05%
0.92%
.gal 289
0.05%
3.75%
.help 287
0.05%
0.15%
.pet 287
0.05%
1.44%
.contact 281
0.04%
2.43%
.properties 281
0.04%
2.15%
.vip 281
0.04%
0.02%
.vet 271
0.04%
2.32%
.fashion 268
0.04%
2.09%
.run 268
0.04%
0.2%
.cool 265
0.04%
1.21%
.directory 265
0.04%
1.78%
.foundation 257
0.04%
0.83%
.click 254
0.04%
0.03%
.express 253
0.04%
2.99%
.clothing 247
0.04%
2.65%
.wiki 246
0.04%
0.19%
.health 244
0.04%
0.39%
.tours 239
0.04%
1.83%
.pub 236
0.04%
1.34%
.lawyer 231
0.04%
2.82%
.party 230
0.04%
1.14%
.lighting 219
0.03%
4.08%
.productions 218
0.03%
2.04%
.top 218
0.03%
0%
.audio 213
0.03%
3.86%
.chat 212
0.03%
0.38%
.sale 212
0.03%
1.49%
.computer 210
0.03%
2.26%
.engineering 210
0.03%
1.9%
.beer 208
0.03%
0.11%
.catering 208
0.03%
6.9%
.ninja 206
0.03%
0.86%
.gratis 205
0.03%
6.69%
.kitchen 205
0.03%
2.74%
.holiday 204
0.03%
5.37%
.camp 202
0.03%
2.48%
.green 202
0.03%
2.42%
.style 197
0.03%
1.72%
.cards 196
0.03%
1.39%
.discount 196
0.03%
5.99%
.repair 195
0.03%
2.31%
.film 194
0.03%
2.72%
.pictures 194
0.03%
2.35%
.red 194
0.03%
1.07%
.versicherung 194
0.03%
15.71%
.report 193
0.03%
1.66%
.rentals 188
0.03%
1.48%
.domains 187
0.03%
2.54%
.graphics 184
0.03%
3.43%
.enterprises 182
0.03%
1.87%
.casa 180
0.03%
0.21%
.construction 179
0.03%
1.9%
.university 179
0.03%
2.24%
.wedding 173
0.03%
1.43%
.alsace 168
0.03%
7.3%
.pizza 167
0.03%
1.66%

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.