is4.de - robtex.com
is4.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=1771291602 | ||||||
Subdomains
Same first word
is4.cz |
is4.pt |
is4.eu |
is4.cc |
is4.com |
is4.me |
is4.sale |
is4.it |
is4.co |
is4.us |
is4.cn |
is4.co.jp |
is4.net |
is4.org |
is4.de |
is4.fr |
Similar names
DNS History
9 records (4 active, 5 former)
●NSns.is4.de2015-08-06 → 2026-03-09 · 5 obs
● 2018-05-11 08:28:14
○ 2026-03-08 09:25:16
● 2026-03-09 10:53:18
● 2026-03-09 10:53:20
●NSns.syskoplan.de2015-08-06 → 2026-03-09 · 2 obs
● 2026-03-09 10:53:20
●NSouter.syskoplan.de2015-08-06 → 2026-03-09 · 2 obs
● 2026-03-09 10:53:20
●MXis4-de.mail.protection.outlook.com2026-03-09 → 2026-03-09 · 3 obs
● 2026-03-09 10:53:18
● 2026-03-09 10:53:20
○MXmx12a.antispameurope.com2015-08-06 → 2018-05-11 · 4 obs
● 2018-05-11 08:28:14
○ 2026-03-08 09:25:16
○ 2026-03-09 10:53:20
○MXmx12b.antispameurope.com2015-08-06 → 2018-05-11 · 4 obs
● 2018-05-11 08:28:14
○ 2026-03-08 09:25:16
○ 2026-03-09 10:53:20
○MXmx12c.antispameurope.com2015-08-06 → 2018-05-11 · 4 obs
● 2018-05-11 08:28:14
○ 2026-03-08 09:25:16
○ 2026-03-09 10:53:20
○MXmx12d.antispameurope.com2015-08-06 → 2018-05-11 · 4 obs
● 2018-05-11 08:28:14
○ 2026-03-08 09:25:16
○ 2026-03-09 10:53:20
○A54.76.134.212018-05-11 → 2026-03-08 · 4 obs
● 2026-03-08 09:25:16
○ 2026-03-09 10:53:18
○ 2026-03-09 10:53:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| is4.de | outer.syskoplan.de, ns.syskoplan.de | 2 records |
✅ Authoritative Response
Server: 194.15.211.130
NS records: outer.syskoplan.de, ns.syskoplan.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for is4.de (unsigned zone)
⏱️ Timing
Total: 822ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 54.76.134.21 |
| NS | 2 | outer.syskoplan.de, ns.syskoplan.de |
| TXT | 3 | MS=ms99791160, MS=ms57099562... |
| SOA | 1 | ns.is4.de noc.is4.de |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (outer.syskoplan.de, ns.syskoplan.de)
Analysis
Hierarchy
is4.de is the parent of lookout2.is4.de, cag.is4.de, outpost.is4.de, www2.is4.de, www.is4.de and a few other host names.
Name Servers
is4.de is delegated to three name servers ns.is4.de, ns.syskoplan.de and outer.syskoplan.de.
is4.de at least partially shares name servers with other domains, for instance insurancesuite.de, xpress-reply.de, riverlandreply.de, macros-innovation.de and 100.153.194.in-addr.arpa.
Host names with one IP number:
ns.is4.de points to: 194.15.211.140.
ns.syskoplan.de points to: 194.15.211.140.
outer.syskoplan.de points to: 194.15.211.130.
Host names that point to 194.15.211.140: ns.is4.de and ns.syskoplan.de.
Mail Servers
is4.de is handled by a single mail server, is4-de.mail.protection.outlook.com.
Host is4-de.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::, 2a01:111:f403:ca04::1, 2a01:111:f403:ca04::10, 2a01:111:f403:ca09::b, 52.101.68.39, 52.101.73.6, 52.101.73.15 and 52.101.73.28.