`knowledgeconstructors.es`

DNSSEC	⚠️ Not signed
A	81.88.48.71^{🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix}
		PTR	`hostingnom.webapps.net`
NS	`dns1.nominalia.com` ⭐
		A	2a01:8100:2911::2:184:3^{🇮🇹 REGISTER-AS2a01:8100:2000::/36}
		A	81.88.61.3^{🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix}
			PTR	`host-81-88-61-3.dedicatedservers.it`
NS	`dns2.nominalia.com`
		A	81.88.63.48^{🇮🇹 REGISTER-AS81.88.63.0/24 Register.IT S.p.A. prefix}
			PTR	`dns2.nominalia.com`
MX	`mail.nominalia.com` ⭐
		A	195.110.124.132^{🇮🇹 REGISTER-AS195.110.124.0/22 Register.IT S.p.A. Internet Service Provider}
			PTR	`mail.register.it`
TXT	`v=spf1 include:spf.webapps.net ~all`
SOA	`dns1.nominalia.com`root@dns1.nominalia.com serial=1762745961

`es`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.nic.es` ⭐
	NS	`a.nic.es`
	NS	`c.nic.es`
	NS	`g.nic.es`
	NS	`h.nic.es`
	SOA	`ns1.nic.es`hostmaster@nic.es 2026-03-24 #8

Same first word

knowledgeconstructors.es

DNS History

9 records (4 active, 5 former)

●NSdns1.nominalia.com2026-02-18 → 2026-03-24 · 3 obs

○ 2018-09-01 23:10:04
● 2026-02-18 17:08:20
● 2026-03-24 15:47:10

●NSdns2.nominalia.com2026-02-18 → 2026-03-24 · 3 obs

○ 2018-09-01 23:10:04
● 2026-02-18 17:08:20
● 2026-03-24 15:47:10

○NSor.earth.orderbox-dns.com2018-09-01 → 2018-09-01 · 3 obs

● 2018-09-01 23:10:04
○ 2026-02-18 17:08:20
○ 2026-03-24 15:47:10

○NSor.mars.orderbox-dns.com2018-09-01 → 2018-09-01 · 3 obs

● 2018-09-01 23:10:04
○ 2026-02-18 17:08:20
○ 2026-03-24 15:47:10

○NSor.mercury.orderbox-dns.com2018-09-01 → 2018-09-01 · 3 obs

● 2018-09-01 23:10:04
○ 2026-02-18 17:08:20
○ 2026-03-24 15:47:10

○NSor.venus.orderbox-dns.com2018-09-01 → 2018-09-01 · 3 obs

● 2018-09-01 23:10:04
○ 2026-02-18 17:08:20
○ 2026-03-24 15:47:10

●MXmail.nominalia.com2026-02-18 → 2026-03-24 · 2 obs

● 2026-02-18 17:08:20
● 2026-03-24 15:47:10

○A165.231.183.352018-09-01 → 2018-09-01 · 3 obs

● 2018-09-01 23:10:04
○ 2026-02-18 17:08:20
○ 2026-03-24 15:47:10

●A81.88.48.712026-02-18 → 2026-03-24 · 3 obs

○ 2018-09-01 23:10:04
● 2026-02-18 17:08:20
● 2026-03-24 15:47:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
es	a.nic.es, c.nic.es, g.nic.es, h.nic.es	-
knowledgeconstructors.es	dns2.nominalia.com, dns1.nominalia.com	-

✅ Authoritative Response

Server:81.88.63.48

NS records: dns2.nominalia.com, dns1.nominalia.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledgeconstructors.es (unsigned zone)

⏱️ Timing

Total: 899ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.88.48.71`
NS	2	`dns1.nominalia.com, dns2.nominalia.com`
MX	1	`mail.nominalia.com (pri: 10)`
TXT	1	`v=spf1 include:spf.webapps.net ~all`
SOA	1	`dns1.nominalia.com root.dns1.nominalia.c`

Analysis

IP Addresses

knowledgeconstructors.es points to a single IP: 81.88.48.71.

Other host names, for instance kbkband.com, fincasenespana.com, seguridadalimentaria.com, ulyses.cat and donval.com share IP numbers with knowledgeconstructors.es.

Name Servers

knowledgeconstructors.es's delegation is to two name servers dns1.nominalia.com and dns2.nominalia.com.

knowledgeconstructors.es shares the same name server configuration as other domains, such as geolocal.cat, gorentals.es, grafiweb.es, hiddengiveaway.com and murbenasque.com.

Host names with two IPs:

dns1.nominalia.com points to: 2a01:8100:2911::2:184:3 and 81.88.61.3.

Host names with one IP:

dns2.nominalia.com points to: 81.88.63.48.

Mail Servers

knowledgeconstructors.es is served by a single mail server, mail.nominalia.com.

knowledgeconstructors.es uses the same mail server setup as other domains such as humancom.es, vemec.com, maskompra.es, clinica-villanueva.com and marketingneural.com.

knowledgeconstructors.es shares some mail servers with other domains at least partially, for example audiovisioncenter.com.

mail.nominalia.com points to IP number 195.110.124.132.

knowledgeconstructors.es - robtex.com