biester.tech - robtex.com
biester.tech
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a0c:2500:571:e1d:71a0:410b:4fb1:f4d5🇩🇪 CYBERSE2a0c:2500::/32 | ||||||
| PTR | mail.biester.tech | ||||||
| A | 185.230.161.14🇩🇪 CYBERSE185.230.161.0/24 | ||||||
| NS | ns2.checkdomain.de ⭐ | ||||||
| A | 2a01:4f8:2b02:a88::106🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns2.checkdomain.de | ||||||
| A | 5.9.190.98🇩🇪 Hetzner5.9.0.0/16 HETZNER-RZ-FKS-BLK5 | ||||||
| PTR | ns2.checkdomain.de | ||||||
| NS | ns.checkdomain.de | ||||||
| A | 2a02:2b80:101:5000::9🇩🇪 CLOUDPIT2a02:2b80:101::/48 | ||||||
| A | 109.237.143.11🇩🇪 CLOUDPIT109.237.128.0/20 | ||||||
| PTR | ns1.checkdomain.de | ||||||
| MX | mail.biester.tech ⭐ | ||||||
| A | 2a0c:2500:571:e1d:71a0:410b:4fb1:f4d5🇩🇪 CYBERSE2a0c:2500::/32 | ||||||
| PTR | mail.biester.tech | ||||||
| A | 185.230.161.14🇩🇪 CYBERSE185.230.161.0/24 | ||||||
| PTR | mail.biester.tech | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | ns.checkdomain.dehostmaster@checkdomain.de 2026-03-28 #2 | ||||||
tech
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1774753148 | ||||||
Subdomains
mail.biester.tech |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns.checkdomain.de2026-03-28 → 2026-03-29 · 2 obs
● 2026-03-29 03:39:26
●NSns2.checkdomain.de2026-03-28 → 2026-03-29 · 2 obs
● 2026-03-29 03:39:26
●MXmail.biester.tech2026-03-28 → 2026-03-29 · 2 obs
● 2026-03-29 03:39:26
●A185.230.161.142026-03-28 → 2026-03-29 · 2 obs
● 2026-03-29 03:39:26
●A2a0c:2500:571:e1d:71a0:410b:4fb1:f4d52026-03-28 → 2026-03-29 · 2 obs
● 2026-03-29 03:39:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tech | ns01.trs-dns.com, ns10.trs-dns.org, ns10.trs-dns.info, ns01.trs-dns.net | 8 records |
| biester.tech | ns.checkdomain.de, ns2.checkdomain.de | - |
✅ Authoritative Response
Server:5.9.190.98
NS records: ns.checkdomain.de, ns2.checkdomain.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for biester.tech (unsigned zone)
⏱️ Timing
Total: 2707ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.230.161.14 |
| AAAA | 1 | 2a0c:2500:571:e1d:71a0:410b:4fb1:f4d5 |
| NS | 2 | ns2.checkdomain.de, ns.checkdomain.de |
| MX | 1 | mail.biester.tech (pri: 10) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | ns.checkdomain.de hostmaster.checkdomain |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.com, ns10.trs-dns.org...)
Analysis
Hierarchy
mail.biester.tech is a child of biester.tech.
IP Addresses
biester.tech has two IP numbers: 2a0c:2500:571:e1d:71a0:410b:4fb1:f4d5 and 185.230.161.14.
Other host names for instance mail.biester.tech and train-hits.de share IP numbers with biester.tech.
Name Servers
biester.tech's delegation uses two name servers: ns2.checkdomain.de and ns.checkdomain.de.
biester.tech uses the same name server setup as other domains, such as independent-research-lab.com, allit.store, santemedia.tv, mycamperhotel.com and dth.rocks.
Host names with two IPs:
ns2.checkdomain.de points to 2a01:4f8:2b02:a88::106 and 5.9.190.98
ns.checkdomain.de points to 2a02:2b80:101:5000::9 and 109.237.143.11
Mail Servers
A single mail server handles biester.tech, mail.biester.tech.
The host name mail.biester.tech resolves to two IP numbers: 2a0c:2500:571:e1d:71a0:410b:4fb1:f4d5 and 185.230.161.14.