36 TLDs have >90% of domains on a single DNS provider. 62 TLDs have >70% concentration. A single provider outage could render the majority of these TLDs unreachable.
TLDs >90% Concentration
36
TLDs >70% Concentration
62
TLDs >50% Concentration
112
| TLD | Dominant Provider | Domains | Share |
|---|---|---|---|
| .mma | iptwins.com | 1,613 | 99.9% |
| .mma | iptwins.net | 1,613 | 99.9% |
| .gmx | 1&1 IONOS | 478 | 99.8% |
| .lundbeck | CSC Digital Brand Services | 272 | 99.6% |
| .allfinanz | brandshelter.net | 1,767 | 99.5% |
| .allfinanz | brandshelter.com | 1,767 | 99.5% |
| .weber | perf1.fr | 164 | 99.4% |
| .weber | perf1.com | 164 | 99.4% |
| .crs | Cloudflare | 562 | 99.3% |
| .stada | opportunity.de | 125 | 99.2% |
| .broadway | co.uk | 342 | 99.1% |
| .dvag | brandshelter.com | 9,034 | 99.0% |
| .dvag | brandshelter.net | 9,034 | 99.0% |
| .neustar | ultradns.info | 678 | 98.7% |
| .neustar | co.uk | 678 | 98.7% |
| .neustar | UltraDNS/Neustar | 678 | 98.7% |
| .aco | lemarit.de | 368 | 98.4% |
| .discover | CSC Digital Brand Services | 101 | 98.0% |
| .stockholm | stockholm.se | 198 | 98.0% |
| .target | gcd-dns.com | 146 | 98.0% |
| .aco | lemarit.net | 368 | 97.8% |
| .whoswho | irondns.net | 909 | 97.4% |
| .realtor | Google Domains | 28,146 | 97.1% |
| .nra | net.au | 129 | 96.9% |
| .jnj | NS1/IBM | 130 | 96.2% |
| .sbi | Akamai | 119 | 95.8% |
| .jnj | jnjdns.com | 130 | 95.4% |
| .feedback | nic.feedback | 14,670 | 95.2% |
| .kred | peoplebrowsr.com | 1,641 | 94.9% |
| .weir | CSC Digital Brand Services | 191 | 93.2% |
| TLD | Dominant Provider | Domains | Share |
|---|---|---|---|
| .닷넷 (.xn--t60b56a) | dyna-ns.net (Bulk) | 10,245 | 88.9% |
| .lidl | do-ex.com | 123 | 87.8% |
| .lidl | do-ex.org | 123 | 87.8% |
| .lidl | do-ex.net | 123 | 87.8% |
| .man | irondns.eu | 204 | 87.8% |
| .yandex | yandex.ru | 112 | 87.5% |
| .man | irondns.de | 204 | 87.3% |
| .sport | irondns.net | 9,694 | 87.3% |
| .irish | Cloudflare | 22,917 | 86.5% |
| .cpa | encirca.net | 6,452 | 86.1% |
| .abbott | abbott.com | 415 | 85.5% |
| .skin | Alibaba Cloud DNS | 160,033 | 83.8% |
| .广东 (.xn--xhq521b) | Alibaba Cloud (HiChina) | 505 | 81.8% |
| .संगठन (.xn--i1b6b1a6a2e) | Cloudflare | 424 | 80.7% |
| .broadway | comlaude.net | 342 | 78.7% |
| .broadway | comlaude.ch | 342 | 78.4% |
| .lifestyle | GoDaddy | 11,470 | 78.1% |
| .citic | zdnscloud.biz | 157 | 77.7% |
| .citic | zdnscloud.info | 157 | 77.7% |
| Google Domains | 260 | 77.7% | |
| .box | 3dns.box | 2,862 | 72.4% |
| .leclerc | prodomaines.com | 1,176 | 72.4% |
| .casa | Cloudflare | 58,235 | 72.2% |
| .mobile | siteprotect.com | 2,047 | 71.2% |
| .中信 (.xn--fiq64b) | zdnscloud.biz | 170 | 70.6% |
| .中信 (.xn--fiq64b) | zdnscloud.info | 170 | 70.6% |