mathias-koch.com - robtex.com
mathias-koch.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:239:381:5c00::1🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 217.154.92.189🇬🇧 IONOS-AS217.154.92.0/22 IONOS SE ber.de | ||||||
| NS | ns1.de-nserver.de ⭐ ⚠️ Not in parent delegation | ||||||
| A | 109.237.143.9🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | ns1.de-nserver.de | ||||||
| NS | 1679994182.serifu.com ⚠️ Not in zone NS records | ||||||
| A | 127.0.0.1 | ||||||
| NS | 1679994189.serifu.com ⚠️ Not in zone NS records | ||||||
| A | 127.0.0.1 | ||||||
| NS | ns2.de-nserver.de ⚠️ Not in parent delegation | ||||||
| A | 5.9.190.96🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5 | ||||||
| PTR | ns2.de-nserver.de | ||||||
| MX | mail.mathias-koch.com ⭐ | ||||||
| A | 217.154.92.189🇬🇧 IONOS-AS217.154.92.0/22 IONOS SE ber.de | ||||||
| PTR | koch.biz | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | ns1.de-nserver.dehostmaster@ns1.de-nserver.de 2025-04-13 #8 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1777215416 | ||||||
Subdomains
mail.mathias-koch.com |
Same first word
mathias-koch.com |
DNS History
9 records (7 active, 2 former)
●NS1679994182.serifu.com2026-04-19 → 2026-04-26 · 3 obs
● 2026-04-19 05:22:32
● 2026-04-26 15:15:44
●NS1679994189.serifu.com2026-04-19 → 2026-04-26 · 3 obs
● 2026-04-19 05:22:32
● 2026-04-26 15:15:44
●NSns1.de-nserver.de2015-07-14 → 2026-04-26 · 2 obs
● 2026-04-26 15:15:44
●NSns2.de-nserver.de2015-07-14 → 2026-04-26 · 2 obs
● 2026-04-26 15:15:44
●MXmail.mathias-koch.com2015-07-14 → 2026-04-26 · 2 obs
● 2026-04-26 15:15:44
●A217.154.92.1892026-04-19 → 2026-04-26 · 3 obs
● 2026-04-19 05:22:32
● 2026-04-26 15:15:44
●A2a01:239:381:5c00::12026-04-19 → 2026-04-26 · 3 obs
● 2026-04-19 05:22:32
● 2026-04-26 15:15:44
○A85.214.106.1392017-03-24 → 2020-03-12 · 5 obs
● 2017-03-24 01:05:24
● 2020-03-12 14:37:48
○ 2026-04-19 05:22:32
○ 2026-04-26 15:15:44
○A85.214.223.282015-07-14 → 2016-07-21 · 4 obs
● 2016-07-21 07:31:46
○ 2017-03-24 01:05:24
○ 2026-04-26 15:15:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net... | - |
| mathias-koch.com | 1679994189.serifu.com, 1679994182.serifu.com | 2 records |
✅ Authoritative Response
Server:109.237.143.9
NS records: 1679994189.serifu.com, 1679994182.serifu.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathias-koch.com (unsigned zone)
⏱️ Timing
Total: 475ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.154.92.189 |
| AAAA | 1 | 2a01:239:381:5c00::1 |
| NS | 2 | ns1.de-nserver.de, ns2.de-nserver.de |
| MX | 1 | mail.mathias-koch.com (pri: 10) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | ns1.de-nserver.de hostmaster.ns1.de-nser |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (1679994189.serifu.com, 1679994182.serifu.com)
Analysis
Hierarchy
mathias-koch.com is the parent of mail.mathias-koch.com.
IP Addresses
mathias-koch.com resolves to two IP numbers: 2a01:239:381:5c00::1 and 217.154.92.189.
other host names including mail.tb-bremen.de, koch.biz, borussia-wf.de, mail.mathias-koch.com and mk0.de share IP numbers with mathias-koch.com.
Name Servers
mathias-koch.com is delegated to four name servers: 1679994182.serifu.com, 1679994189.serifu.com, ns1.de-nserver.de and ns2.de-nserver.de.
mathias-koch.com at least partially shares name servers with other domains, for instance kampfsportpro.de, joe-und-co.de, verlagoesterreichonline.at, vhs-waldkraiburg.de and sunleds.de.
These name servers are commonly used alongside ns1.fairio.com and ns2.fairio.com.
Host names with a single IP address:
1679994182.serifu.com points to 127.0.0.1
1679994189.serifu.com points to 127.0.0.1
ns1.de-nserver.de points to 109.237.143.9
ns2.de-nserver.de points to 5.9.190.96
Host names pointing to 127.0.0.1: 1679994182.serifu.com and 1679994189.serifu.com
Mail Servers
mathias-koch.com is handled by a single mail server, mail.mathias-koch.com.
mail.mathias-koch.com resolves to IP 217.154.92.189.