tec21.com - dns.ninja

`tec21.com`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns2.afternic.com` ⭐
		A	2603:5:2226::45^{🇺🇸 GODADDY-DNS2603:5:2220::/44}
			PTR	`ns2.afternic.com`
		A	173.201.66.69^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns2.afternic.com`
NS	`ns1.afternic.com`
		A	2603:5:2126::45^{🇺🇸 GODADDY-DNS2603:5:2120::/44}
			PTR	`ns1.afternic.com`
		A	97.74.98.69^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns1.afternic.com`
NS	`verification-vesbet7nkettdw2mc9cgox.ns101.verify.hn` ⚠️ Not in zone NS records
		A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
			PTR	`a904c694c05102f30.awsglobalaccelerator.com`
		A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
			PTR	`a904c694c05102f30.awsglobalaccelerator.com`
TXT	`v=spf1 -all`
SOA	`ns2.afternic.com`dns@jomax.net serial=1

`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=1786744284

Subdomains

mail.tec21.com

Same first word

tec21.ch

tec21.org

tec21.fr

tec21.com

tec21.de

Similar names

cet21.cz

tc12e.cn

tec12.com

etc12.com

cet21.com

tec12.at

etc21.com

tec12.de

DNS History

5 records (5 active, 0 former)

●NSns1.afternic.com2026-03-25 → 2026-08-14 · 2 obs

● 2026-03-25 00:24:40
● 2026-08-14 21:52:10

●NSns2.afternic.com2026-03-25 → 2026-08-14 · 2 obs

● 2026-03-25 00:24:40
● 2026-08-14 21:52:10

●NSverification-vesbet7nkettdw2mc9cgox.ns101.verify.hn2026-03-25 → 2026-08-14 · 2 obs

● 2026-03-25 00:24:40
● 2026-08-14 21:52:10

●A13.248.169.482026-03-25 → 2026-08-14 · 2 obs

● 2026-03-25 00:24:40
● 2026-08-14 21:52:10

●A76.223.54.1462026-03-25 → 2026-08-14 · 2 obs

● 2026-03-25 00:24:40
● 2026-08-14 21:52:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, l.gtld-servers.net...	-
tec21.com	ns1.afternic.com, ns2.afternic.com, verification-vesbet7nkettdw2mc9cgox.ns101.verify.hn	4 records

✅ Authoritative Response

Server:97.74.98.69

NS records: ns1.afternic.com, ns2.afternic.com, verification-vesbet7nkettdw2mc9cgox.ns101.verify.hn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tec21.com (unsigned zone)

⏱️ Timing

Total: 3562ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.54.146, 13.248.169.48`
NS	2	`ns1.afternic.com, ns2.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.afternic.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.afternic.com, ns1.afternic.com, ns2.afternic.com...)

Analysis

Hierarchy

tec21.com is a parent domain of mail.tec21.com.

IP Addresses

tec21.com resolves to the IP addresses 13.248.169.48 and 76.223.54.146

Additional host names — courseover.com, hostmaster.ultimateshopping.com, demandbasket.com and two others — share IP numbers with tec21.com.

Name Servers

tec21.com is served by three name servers: ns1.afternic.com, ns2.afternic.com and verification-vesbet7nkettdw2mc9cgox.ns101.verify.hn.

tec21.com shares at least some of its name servers with other domains, including plustivity.com, html.www.consultingcredit.com, base.secretsilence.com and two others.

These name servers are frequently seen alongside the name servers verification-d3jclucsp89ganyqbydeny.ns101.verify.hn, verification-djkne8fnldkhsjvaz52wdz.ns101.verify.hn, verification-urj2ap2akmgcchkhharttb.ns101.verify.hn and verification-jh56ag3qoy8fsktzvbvfht.ns101.verify.hn.

The hostnames ns1.afternic.com, ns2.afternic.com and verification-vesbet7nkettdw2mc9cgox.ns101.verify.hn each direct to two IP addresses — ns1.afternic.com to 97.74.98.69 and 2603:5:2126::45, ns2.afternic.com to 173.201.66.69 and 2603:5:2226::45, and verification-vesbet7nkettdw2mc9cgox.ns101.verify.hn to 13.248.169.48 and 76.223.54.146.