imooc.de - dns.ninja
imooc.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=1786483733 | ||||||
Subdomains
mail.imooc.de |
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSns1.first-ns.de2015-07-03 → 2026-08-11 · 2 obs
● 2026-08-11 21:29:38
●NSrobotns2.second-ns.de2015-07-03 → 2026-08-11 · 2 obs
● 2026-08-11 21:29:38
●NSrobotns3.second-ns.com2015-07-03 → 2026-08-11 · 2 obs
● 2026-08-11 21:29:38
●MXmail.imooc.de2015-07-03 → 2026-08-11 · 2 obs
● 2026-08-11 21:29:38
●A185.28.159.2022026-03-07 → 2026-08-11 · 3 obs
● 2026-03-07 15:51:48
● 2026-08-11 21:29:38
○A193.138.108.2202015-07-03 → 2019-03-31 · 4 obs
● 2019-03-31 17:36:10
○ 2026-03-07 15:51:48
○ 2026-08-11 21:29:38
●A2a00:9e20:191::b91c:9fca2026-03-07 → 2026-08-11 · 3 obs
● 2026-03-07 15:51:48
● 2026-08-11 21:29:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | z.nic.de, a.nic.de, f.nic.de | - |
| imooc.de | robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de | - |
✅ Authoritative Response
Server:213.133.100.103
NS records: robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for imooc.de (unsigned zone)
⏱️ Timing
Total: 1386ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.28.159.202 |
| AAAA | 1 | 2a00:9e20:191::b91c:9fca |
| NS | 3 | robotns3.second-ns.com, ns1.first-ns.de... |
| MX | 1 | mail.imooc.de (pri: 10) |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
Hierarchy
imooc.de is a parent domain of mail.imooc.de.
IP Addresses
imooc.de directs to two IP numbers, 185.28.159.202 and 2a00:9e20:191::b91c:9fca
Additional host names — mail.ngdle.com, mail.imooc.de, host03-dc01-202.enterra.de and two others — share IP numbers with imooc.de.
Name Servers
imooc.de is served by three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
imooc.de shares at least some of its name servers with other domains, including tobecon.de, knauer-makeup.de, guerilla-promotion.net and two others.
The hostnames robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de each direct to two IP addresses — robotns3.second-ns.com to 193.47.99.3 and 2001:67c:192c::add:a3, ns1.first-ns.de to 213.239.242.238 and 2a01:4f8:0:a101::a:1, and robotns2.second-ns.de to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2.
Mail Servers
imooc.de has one mail server: mail.imooc.de.
mail.imooc.de points to two IP addresses: 185.28.159.202 and 2a00:9e20:191::b91c:9fca.