bio4heating.de - robtex.com
bio4heating.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 217.19.237.54🇧🇪 COMBELL-AS217.19.224.0/20 COMBELL Network Brussels, Belgium | ||||||
| PTR | 217.19.237.54.static.hosted.by.combell.com | ||||||
| NS | ns3.combell.net ⭐ | ||||||
| A | 2a00:1c98::53:1🇧🇪 COMBELL-AS2a00:1c98::/32 COMBELL Network | ||||||
| PTR | ns3.combell.net | ||||||
| A | 83.217.73.172🇧🇪 COMBELL-AS83.217.64.0/19 Combell Network | ||||||
| PTR | ns3.combell.net | ||||||
| NS | ns1.combell.eu ⚠️ Not in parent delegation | ||||||
| A | 2a00:1c98:50::50🇧🇪 COMBELL-AS2a00:1c98:50::/44 | ||||||
| A | 89.44.166.48🇧🇪 COMBELL-AS89.44.166.0/23 Combell Network | ||||||
| PTR | 89.44.166.48.static.hosted.by.combell-ops.net | ||||||
| NS | ns4.combell.net | ||||||
| A | 2001:1598:0:101::3🇧🇪 EASYHOST-COLO-AS2001:1598::/32 Easyhost Network | ||||||
| PTR | ns4.combell.net | ||||||
| A | 86.39.202.67🇧🇪 EASYHOST-COLO-AS86.39.128.0/17 Easyhost Network | ||||||
| PTR | ns4.combell.net | ||||||
| TXT | v=spf1 a include:haco.com -all | ||||||
| TXT | MS=ms31494754 | ||||||
| SOA | ns3.combell.nethostmaster@bio4heating.de serial=1669488863 | ||||||
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=1785260245 | ||||||
Same first word
bio4heating.it |
bio4heating.be |
bio4heating.fr |
bio4heating.de |
bio4heating.com.au |
bio4heating.eu |
bio4heating.com |
DNS History
5 records (4 active, 1 former)
●NSns1.combell.eu2026-07-28 → 2026-07-28 · 2 obs
● 2026-07-28 17:41:54
●NSns3.combell.net2015-05-27 → 2026-07-28 · 2 obs
● 2026-07-28 17:41:54
●NSns4.combell.net2015-05-27 → 2026-07-28 · 2 obs
● 2026-07-28 17:41:54
○MXmail.haco.com2015-05-27 → 2017-05-13 · 3 obs
● 2017-05-13 04:06:28
○ 2026-07-28 17:41:54
●A217.19.237.542015-05-27 → 2026-07-28 · 2 obs
● 2026-07-28 17:41:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| bio4heating.de | ns3.combell.net, ns4.combell.net | - |
✅ Authoritative Response
Server:83.217.73.172
NS records: ns3.combell.net, ns4.combell.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bio4heating.de (unsigned zone)
⏱️ Timing
Total: 3280ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.19.237.54 |
| NS | 3 | ns4.combell.net, ns1.combell.eu... |
| TXT | 2 | v=spf1 a include:haco.com -all, MS=ms31494754 |
| SOA | 1 | ns3.combell.net hostmaster.bio4heating.d |
Analysis
IP Addresses
bio4heating.de directs to one IP number, which is 217.19.237.54.
Among the host names that share IP numbers with bio4heating.de are if-it4u.be, indutech-int.com, c22.be and two others.
Name Servers
bio4heating.de is delegated to three name servers: ns1.combell.eu, ns3.combell.net and ns4.combell.net.
bio4heating.de partially shares its NS delegation with several other domains, including coadit.eu, beeldig.eu, jokomo.be and two others.
These name servers regularly co-occur with the name servers ns3.european-server.com, ns4.european-server.com and ns1.european-server.eu.
ns1.combell.eu, ns3.combell.net and ns4.combell.net each resolve to two IP addresses: ns1.combell.eu resolves to 89.44.166.48 and 2a00:1c98:50::50; ns3.combell.net resolves to 83.217.73.172 and 2a00:1c98::53:1; ns4.combell.net resolves to 86.39.202.67 and 2001:1598:0:101::3.