DNSWHOIS.INFO - check21.org
Search for IP or hostnames:
check21.org checked at 2025-10-06T23:39:39.775Z 6151ms 102/102/102 100% R:11check21.org
| NS | ns1044.ui-dns.biz | ||||||
| A | 2001:8d8:fe:53:0:d9a0:512c:100 🇩🇪 IONOS SE | ||||||
| PTR | ns1044.ui-dns.biz | ||||||
| A | 217.160.81.44🇩🇪 IONOS SE | ||||||
| PTR | ns1044.ui-dns.biz | ||||||
| MX | mx00.ionos.com | ||||||
| A | 74.208.5.3🇺🇸 IONOS SE | ||||||
| PTR | mx00.perfora.net | ||||||
| MX | mx01.ionos.com | ||||||
| A | 74.208.5.21🇺🇸 IONOS SE | ||||||
| PTR | mx01.perfora.net | ||||||
| NS | ns1044.ui-dns.com | ||||||
| A | 2001:8d8:fe:53:0:d9a0:522c:100 🇩🇪 IONOS SE | ||||||
| PTR | ns1044.ui-dns.com | ||||||
| A | 217.160.82.44🇩🇪 IONOS SE | ||||||
| PTR | ns1044.ui-dns.com | ||||||
| NS | ns1044.ui-dns.de | ||||||
| A | 2001:8d8:fe:53:0:d9a0:502c:100 🇩🇪 IONOS SE | ||||||
| PTR | ns1044.ui-dns.de | ||||||
| A | 217.160.80.44🇩🇪 IONOS SE | ||||||
| PTR | ns1044.ui-dns.de | ||||||
| NS | ns1044.ui-dns.org | ||||||
| A | 2001:8d8:fe:53:0:d9a0:532c:100 🇩🇪 IONOS SE | ||||||
| PTR | ns1044.ui-dns.org | ||||||
| A | 217.160.83.44🇩🇪 IONOS SE | ||||||
| PTR | ns1044.ui-dns.org | ||||||
| A | 2607:f1c0:100f:f000::223 🇺🇸 IONOS SE | ||||||
| PTR | 2607-f1c0-100f-f000-0000-0000-0000-0223.elastic-ssl.ui-r.com | ||||||
| A | 74.208.236.47🇺🇸 IONOS SE | ||||||
| PTR | 74-208-236-47.elastic-ssl.ui-r.com | ||||||
org
| NS | a0.org.afilias-nst.info | ||||||
| NS | a2.org.afilias-nst.info | ||||||
| NS | c0.org.afilias-nst.info | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | d0.org.afilias-nst.org | ||||||
Starts with same word
Starts similarily
AI analysis
check21.org resolves to two IP numbers: 2607:f1c0:100f:f000::223 and 74.208.236.47.
other host names including mifki.ru, secaplus.com, vinceria.com, surplus.clothing and www.esginh.org share IP numbers with check21.org.
check21.org is delegated to four name servers: ns1044.ui-dns.biz, ns1044.ui-dns.com, ns1044.ui-dns.de and ns1044.ui-dns.org.
check21.org at least partially shares name servers with other domains, for instance ponyntrap.com, cbreedon.com, weintipp.de, gamodiana.com and 3rdjohn.com.
these name servers are often used together with ns1057.ui-dns.biz, ns1049.ui-dns.de, ns1114.ui-dns.org and ns1109.ui-dns.org.
Host names with two IP numbers:
ns1044.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:512c:100 and 217.160.81.44; ns1044.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:522c:100 and 217.160.82.44; ns1044.ui-dns.de points to 2001:8d8:fe:53:0:d9a0:502c:100 and 217.160.80.44; ns1044.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:532c:100 and 217.160.83.44.
Two mail servers handle check21.org: mx00.ionos.com and mx01.ionos.com.
check21.org shares the same mail server setup as other domains, for instance rcicarolinas.org, part-cargo.com, jjcotter.com, creogc.com and wwteachingfellowships.tv.
Host names with one IP number:
mx00.ionos.com points to 74.208.5.3
mx01.ionos.com points to 74.208.5.21