`structural-engineering-software.com`

DNSSEC	🔒 Signed (DS record present)
A	2a00:1c98:1000:1294:0:3:99a9:83b^{🇧🇪 COMBELL-AS2a00:1c98::/32 COMBELL Network}
A	188.208.36.229^{🇧🇪 COMBELL-AS188.208.36.0/23 Combell Network}
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`
MX	`mx.mailprotect.be` ⭐
		A	178.208.39.140^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.141^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.142^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.143^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
MX	`mx.backup.mailprotect.be`⁽⁵⁰⁾
		A	178.208.39.140^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.141^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.142^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
		A	178.208.39.143^{🇧🇪 COMBELL-AS178.208.32.0/19 COMBELL Network}
			PTR	`mx.mailprotect.be`
TXT	`v=spf1 mx a include:_spf.relay.mailprotect.be ~all`
SOA	`ns3.combell.net`hostmaster@structural-engineering-software.com serial=1711535718

`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.net`nstld@verisign-grs.com serial=1771291435

Same first word

structural-engineering-software.com

DNS History

12 records (7 active, 5 former)

●NSns1.combell.eu2026-02-18 → 2026-03-22 · 3 obs

○ 2020-01-03 08:17:50
● 2026-02-18 09:51:06
● 2026-03-22 19:28:38

●NSns3.combell.net2026-02-18 → 2026-03-22 · 3 obs

○ 2020-01-03 08:17:50
● 2026-02-18 09:51:06
● 2026-03-22 19:28:38

●NSns4.combell.net2026-02-18 → 2026-03-22 · 3 obs

○ 2020-01-03 08:17:50
● 2026-02-18 09:51:06
● 2026-03-22 19:28:38

○NSns41.domaincontrol.com2016-02-06 → 2020-01-03 · 4 obs

● 2016-02-06 13:07:22
● 2020-01-03 08:17:50
○ 2026-02-18 09:51:06
○ 2026-03-22 19:28:38

○NSns42.domaincontrol.com2016-02-06 → 2020-01-03 · 4 obs

● 2016-02-06 13:07:22
● 2020-01-03 08:17:50
○ 2026-02-18 09:51:06
○ 2026-03-22 19:28:38

○MXmailstore1.secureserver.net2016-02-06 → 2020-01-03 · 4 obs

● 2016-02-06 13:07:22
● 2020-01-03 08:17:50
○ 2026-02-18 09:51:06
○ 2026-03-22 19:28:38

●MXmx.backup.mailprotect.be2026-02-18 → 2026-03-22 · 3 obs

○ 2020-01-03 08:17:50
● 2026-02-18 09:51:06
● 2026-03-22 19:28:38

●MXmx.mailprotect.be2026-02-18 → 2026-03-22 · 3 obs

○ 2020-01-03 08:17:50
● 2026-02-18 09:51:06
● 2026-03-22 19:28:38

○MXsmtp.secureserver.net2016-02-06 → 2020-01-03 · 4 obs

● 2016-02-06 13:07:22
● 2020-01-03 08:17:50
○ 2026-02-18 09:51:06
○ 2026-03-22 19:28:38

●A188.208.36.2292026-02-18 → 2026-03-22 · 3 obs

○ 2020-01-03 08:17:50
● 2026-02-18 09:51:06
● 2026-03-22 19:28:38

●A2a00:1c98:1000:1294:0:3:99a9:83b2026-02-18 → 2026-03-22 · 3 obs

○ 2020-01-03 08:17:50
● 2026-02-18 09:51:06
● 2026-03-22 19:28:38

○A50.63.202.552016-02-06 → 2020-01-03 · 4 obs

● 2016-02-06 13:07:22
● 2020-01-03 08:17:50
○ 2026-02-18 09:51:06
○ 2026-03-22 19:28:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net...	-
structural-engineering-software.com	ns3.combell.net, ns4.combell.net	-

✅ Authoritative Response

Server: 86.39.202.67

NS records: ns3.combell.net, ns4.combell.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 693ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.208.36.229`
AAAA	1	`2a00:1c98:1000:1294:0:3:99a9:83b`
NS	3	`ns1.combell.eu, ns4.combell.net...`
MX	2	`mx.backup.mailprotect.be (pri: 50), mx.mailprotect.be (pri: 10)`
TXT	1	`v=spf1 mx a include:_spf.relay.mailprote`
SOA	1	`ns3.combell.net hostmaster.structural-en`

Analysis

IP Addresses

structural-engineering-software.com points to two IP numbers: 2a00:1c98:1000:1294:0:3:99a9:83b and 188.208.36.229.

Other host names such as sioen.com, pkbenelux.com, dge-nl.nl, rsjmedia.be and www.onorp.be share IPs with structural-engineering-software.com.

Name Servers

structural-engineering-software.com is delegated to three name servers: ns1.combell.eu, ns3.combell.net and ns4.combell.net.

structural-engineering-software.com at least partially shares name servers with other domains, for instance zorgstekene.com, topholz.be, scheepswerfvooruit.nl, agecom.eu and ga-online.be.

These name servers are commonly used with ns3.european-server.com, ns4.european-server.com, ns1.european-server.eu, ns1.register.be, ns2.register.be and ns3.register.be.

Host ns1.combell.eu points to 2a00:1c98:50::50 and 89.44.166.48; Host ns3.combell.net points to 2a00:1c98::53:1 and 83.217.73.172; Host ns4.combell.net points to 2001:1598:0:101::3 and 86.39.202.67.

Mail Servers

structural-engineering-software.com is handled by two mail servers: mx.mailprotect.be and mx.backup.mailprotect.be.

The mail server setup for structural-engineering-software.com matches that of other domains, for instance mijnzwangerschap.be, curtec.be, consultare.be, zenez.eu and sport42.de.

structural-engineering-software.com shares at least partially some mail servers with other domains, including crls.be, bomaco.eu, nosferatu.be, fceksaarde.be and mgdc.be.