a-kurs.de - robtex.com
a-kurs.de
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1778853827 | ||||||
Same first word
Similar names
DNS History
15 records (8 active, 7 former)
●NSns1049.ui-dns.biz2026-05-15 → 2026-05-15 · 2 obs
● 2026-05-15 14:22:22
●NSns1049.ui-dns.com2026-05-15 → 2026-05-15 · 2 obs
● 2026-05-15 14:22:22
●NSns1049.ui-dns.org2026-05-15 → 2026-05-15 · 2 obs
● 2026-05-15 14:22:22
○NSns19.schlund.de2015-07-11 → 2018-01-05 · 3 obs
● 2018-01-05 01:46:54
○ 2026-05-15 14:22:22
○NSns20.schlund.de2015-07-11 → 2018-01-05 · 3 obs
● 2018-01-05 01:46:54
○ 2026-05-15 14:22:22
○MXmx00.schlund.de2015-07-11 → 2018-01-05 · 3 obs
● 2018-01-05 01:46:54
○ 2026-05-15 14:22:22
○MXmx01.schlund.de2015-07-11 → 2018-01-05 · 3 obs
● 2018-01-05 01:46:54
○ 2026-05-15 14:22:22
●A2001:8d8:100f:f000::2002026-05-15 → 2026-05-15 · 2 obs
● 2026-05-15 14:22:22
●A217.160.0.1612026-05-15 → 2026-05-15 · 2 obs
● 2026-05-15 14:22:22
○A217.160.0.2442026-05-15 → 2026-05-15 · 1 obs
○A217.160.231.1042016-04-29 → 2018-01-05 · 4 obs
● 2016-04-29 15:53:16
● 2018-01-05 01:46:54
○ 2026-05-15 14:22:22
○A82.165.75.782015-07-11 → 2016-02-11 · 4 obs
● 2016-02-11 11:54:22
○ 2016-04-29 15:53:16
○ 2026-05-15 14:22:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| a-kurs.de | ns1049.ui-dns.de, ns1049.ui-dns.biz, ns1049.ui-dns.com, ns1049.ui-dns.org | - |
✅ Authoritative Response
Server:217.160.80.49
NS records: ns1049.ui-dns.de, ns1049.ui-dns.biz, ns1049.ui-dns.com, ns1049.ui-dns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a-kurs.de (unsigned zone)
⏱️ Timing
Total: 812ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.0.161 |
| AAAA | 1 | 2001:8d8:100f:f000::200 |
| NS | 4 | ns1049.ui-dns.biz, ns1049.ui-dns.de... |
| MX | 2 | mx00.ionos.de (pri: 10), mx01.ionos.de (pri: 10) |
| TXT | 1 | v=spf1 include:_spf-eu.ionos.com ~all |
| SOA | 1 | ns1049.ui-dns.com hostmaster.schlund.de |
Analysis
IP Addresses
a-kurs.de resolves to two IP numbers: 2001:8d8:100f:f000::200 and 217.160.0.161.
other host names including rz-klima.info, passavia.eu, bestbreakfastfresno.com, beautyofabyss.com and transaktia.com share IP numbers with a-kurs.de.
Name Servers
a-kurs.de is delegated to four name servers: ns1049.ui-dns.biz, ns1049.ui-dns.com, ns1049.ui-dns.de and ns1049.ui-dns.org.
a-kurs.de at least partially shares name servers with other domains, for instance laurobits.com, texony.com, briefy.net, bnisystems.com and simetall.de.
these name servers are commonly used with the name servers ns1060.ui-dns.org, ns1057.ui-dns.biz, ns1044.ui-dns.com, ns1114.ui-dns.org, ns1100.ui-dns.biz, ns1103.ui-dns.com, ns1125.ui-dns.de and ns1032.ui-dns.org.
Host names with two IP numbers:
ns1049.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5131:100 and 217.160.81.49; ns1049.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5231:100 and 217.160.82.49; ns1049.ui-dns.de points to 2001:8d8:fe:53:0:d9a0:5031:100 and 217.160.80.49; ns1049.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5331:100 and 217.160.83.49.
Mail Servers
Two mail servers handle a-kurs.de: mx00.ionos.de and mx01.ionos.de.
a-kurs.de shares the same mail server setup as other domains, for instance queens-business.com, janboehm.de, move-ec.gmbh, medaillon.net and scheitl.de.
a-kurs.de shares mail servers with other domains to some extent, for instance doshirak.de.
Host names with one IP number:
mx00.ionos.de points to 212.227.15.41
mx01.ionos.de points to 217.72.192.67