ci21.de - robtex.com
ci21.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 92.204.90.143🇩🇪 GODADDY-SXB92.204.88.0/21 | ||||||
| PTR | 143.90.204.92.host.secureserver.net | ||||||
| NS | ns15.domaincontrol.com ⭐ | ||||||
| A | 2603:5:21b0::8🇺🇸 GODADDY-DNS2603:5:21b0::/44 | ||||||
| PTR | ns15.domaincontrol.com | ||||||
| A | 97.74.107.8🇺🇸 GODADDY-DNS97.74.106.0/23 | ||||||
| PTR | ns15.domaincontrol.com | ||||||
| NS | ns16.domaincontrol.com | ||||||
| A | 2603:5:22b0::8🇺🇸 GODADDY-DNS2603:5:22b0::/44 | ||||||
| PTR | ns16.domaincontrol.com | ||||||
| A | 173.201.75.8🇺🇸 GODADDY-DNS173.201.74.0/23 | ||||||
| PTR | ns16.domaincontrol.com | ||||||
| MX | mx0.ci21.de ⭐ | ||||||
| A | 80.237.138.5🇩🇪 GD-EMEA-DC-CGN180.237.138.0/24 GD MASS Network | ||||||
| PTR | mx0.webpack.hosteurope.de | ||||||
| TXT | v=spf1 a mx include:spf.server-he.de -all | ||||||
| SOA | ns15.domaincontrol.comdns@jomax.net 2026-01-20 #0 | ||||||
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=1774458090 | ||||||
Subdomains
mx0.ci21.de |
Same first word
ci21.de |
Similar names
ic21.com |
2i1c.com |
1i2c.net |
i12c.net |
21ic.com |
i21c.org |
21ic.com.cn |
21ic.net |
ci12.com |
1i2c.com |
21ic.org |
21ci.com |
ic21.net |
ic21.ru |
12ci.com |
ic21.us |
DNS History
8 records (4 active, 4 former)
○NSns1.hans.hosteurope.de2015-08-17 → 2018-09-05 · 4 obs
● 2018-09-05 03:48:54
○ 2026-03-21 09:11:58
○ 2026-03-25 17:22:36
●NSns15.domaincontrol.com2026-03-21 → 2026-03-25 · 3 obs
● 2026-03-21 09:11:58
● 2026-03-25 17:22:36
●NSns16.domaincontrol.com2026-03-21 → 2026-03-25 · 3 obs
● 2026-03-21 09:11:58
● 2026-03-25 17:22:36
○NSns2.hans.hosteurope.de2015-08-17 → 2018-09-05 · 4 obs
● 2018-09-05 03:48:54
○ 2026-03-21 09:11:58
○ 2026-03-25 17:22:36
●MXmx0.ci21.de2015-08-17 → 2026-03-25 · 2 obs
● 2026-03-25 17:22:36
○A2a01:488:42:1000:57e6:283a:8:f6ef2015-08-17 → 2018-09-05 · 4 obs
● 2018-09-05 03:48:54
○ 2026-03-21 09:11:58
○ 2026-03-25 17:22:36
○A87.230.40.582015-08-17 → 2018-09-05 · 4 obs
● 2018-09-05 03:48:54
○ 2026-03-21 09:11:58
○ 2026-03-25 17:22:36
●A92.204.90.1432026-03-21 → 2026-03-25 · 3 obs
● 2026-03-21 09:11:58
● 2026-03-25 17:22:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| ci21.de | ns16.domaincontrol.com, ns15.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.75.8
NS records: ns16.domaincontrol.com, ns15.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ci21.de (unsigned zone)
⏱️ Timing
Total: 587ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 92.204.90.143 |
| NS | 2 | ns15.domaincontrol.com, ns16.domaincontrol.com |
| MX | 1 | mx0.ci21.de (pri: 50) |
| TXT | 1 | v=spf1 a mx include:spf.server-he.de -al |
| SOA | 1 | ns15.domaincontrol.com dns.jomax.net |
Analysis
Hierarchy
ci21.de is parent of mx0.ci21.de.
IP Addresses
ci21.de points to a single IP: 92.204.90.143.
Other host names, for instance mail.zexo.de, zexo.de, tomm.com, www.tomm.com and londrien.de share IP numbers with ci21.de.
Name Servers
ci21.de's delegation is to two name servers ns15.domaincontrol.com and ns16.domaincontrol.com.
ci21.de shares the same name server configuration as other domains, such as barrierefrei-datenbank.com, sherrybuckley4u.com, kaisers.net, tworevs.com and collingwoodcommercial.co.uk.
ci21.de shares name servers with other domains at least partially, for example sanmak.com.
Host names with two IP numbers: ns15.domaincontrol.com points to 2603:5:21b0::8 and 97.74.107.8; ns16.domaincontrol.com points to 2603:5:22b0::8 and 173.201.75.8
Mail Servers
ci21.de is served by a single mail server, mx0.ci21.de.
mx0.ci21.de points to IP number 80.237.138.5.