mxcore.de - dns.ninja
mxcore.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=1783763141 | ||||||
Previously MX for
mxcore.de |
cookiecrash.de |
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
●NSroot-dns.netcup.net2015-06-04 → 2026-07-11 · 2 obs
● 2026-07-11 09:46:20
●NSsecond-dns.netcup.net2015-06-04 → 2026-07-11 · 2 obs
● 2026-07-11 09:46:20
●NSthird-dns.netcup.net2015-06-04 → 2026-07-11 · 2 obs
● 2026-07-11 09:46:20
○MXmxcore.de2015-06-04 → 2016-12-31 · 4 obs
● 2016-12-31 19:18:30
○ 2026-02-27 05:41:04
○ 2026-07-11 09:46:20
●MXmxext1.mailbox.org2026-02-27 → 2026-07-11 · 3 obs
● 2026-02-27 05:41:04
● 2026-07-11 09:46:20
●MXmxext2.mailbox.org2026-02-27 → 2026-07-11 · 3 obs
● 2026-02-27 05:41:04
● 2026-07-11 09:46:20
●MXmxext3.mailbox.org2026-02-27 → 2026-07-11 · 3 obs
● 2026-02-27 05:41:04
● 2026-07-11 09:46:20
○MXunixlab.de2016-12-31 → 2016-12-31 · 4 obs
● 2016-12-31 19:18:30
○ 2026-02-27 05:41:04
○ 2026-07-11 09:46:20
○A37.120.164.1462015-06-04 → 2016-07-18 · 4 obs
● 2016-07-18 17:58:38
○ 2016-12-31 19:18:30
○ 2026-07-11 09:46:20
○A37.120.165.652016-12-31 → 2016-12-31 · 4 obs
● 2016-12-31 19:18:30
○ 2026-02-27 05:41:04
○ 2026-07-11 09:46:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| mxcore.de | root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net | - |
✅ Authoritative Response
Server:37.221.199.199
NS records: root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mxcore.de (unsigned zone)
⏱️ Timing
Total: 977ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | second-dns.netcup.net, third-dns.netcup.net... |
| MX | 3 | mxext3.mailbox.org (pri: 20), mxext1.mailbox.org (pri: 10)... |
| TXT | 1 | v=spf1 include:mailbox.org |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Name Servers
The authoritative name servers for mxcore.de are root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net — three in total.
mxcore.de partially shares its NS delegation with several other domains, including erz-region.de, seeger-bau.de, schlueterfreunde-owl.de and two others.
root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net all resolve to exactly two IP numbers apiece: root-dns.netcup.net → 46.38.225.225 and 2a03:4000:0:1::e1e1; second-dns.netcup.net → 37.221.199.199 and 2a03:4000:2:24b::c7c7; third-dns.netcup.net → 188.68.63.68 and 2a03:4001:0:106::3f44.
Mail Servers
mxcore.de uses three mail servers — mxext1.mailbox.org, mxext2.mailbox.org and mxext3.mailbox.org.
mxcore.de shares at least some of its mail servers with other domains — for example ns1.tuningteile24.com, daviderceghurn.com, lapawa.de and two more.
mxext1.mailbox.org, mxext2.mailbox.org and mxext3.mailbox.org all resolve to exactly two IP numbers apiece: mxext1.mailbox.org → 80.241.60.212 and 2001:67c:2050:104:0:1:25:1; mxext2.mailbox.org → 80.241.60.215 and 2001:67c:2050:104:0:2:25:1; mxext3.mailbox.org → 80.241.60.216 and 2001:67c:2050:104:0:3:25:1.