`21-learnonline.com`

DNSSEC	⚠️ Not signed
A	216.205.152.132
NS	`ns47.domaincontrol.com` ⭐
		A	2603:5:2172::18^{🇺🇸 GODADDY-DNS2603:5:2170::/44}
			PTR	`ns47.domaincontrol.com`
		A	97.74.103.24^{🇺🇸 GODADDY-DNS97.74.102.0/23}
			PTR	`ns47.domaincontrol.com`
NS	`ns48.domaincontrol.com`
		A	2603:5:2272::18^{🇺🇸 GODADDY-DNS2603:5:2270::/44}
			PTR	`ns48.domaincontrol.com`
		A	173.201.71.24^{🇺🇸 GODADDY-DNS173.201.70.0/23}
			PTR	`ns48.domaincontrol.com`
MX	`smtp.secureserver.net` ⭐
		A	92.204.80.0^{🇫🇷 GODADDY-SXB92.204.80.0/23}
			PTR	`sxb1plibsmtp01-v01.prod.sxb1.secureserver.net`
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	92.204.80.3^{🇫🇷 GODADDY-SXB92.204.80.0/23}
			PTR	`sxb1plibsmtp01-v02.prod.sxb1.secureserver.net`
SOA	`NS47.DOMAINCONTROL.com`dns@jomax.net 2016-05-03 #0

`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=1776095407

Same first word

21-learnonline.com

DNS History

6 records (5 active, 1 former)

●NSns47.domaincontrol.com2015-08-16 → 2026-04-13 · 2 obs

● 2015-08-16 08:32:16
● 2026-04-13 16:06:58

●NSns48.domaincontrol.com2015-08-16 → 2026-04-13 · 2 obs

● 2015-08-16 08:32:16
● 2026-04-13 16:06:58

●MXmailstore1.secureserver.net2015-08-16 → 2026-04-13 · 2 obs

● 2015-08-16 08:32:16
● 2026-04-13 16:06:58

●MXsmtp.secureserver.net2015-08-16 → 2026-04-13 · 2 obs

● 2015-08-16 08:32:16
● 2026-04-13 16:06:58

○A116.254.222.322015-08-16 → 2015-08-16 · 3 obs

● 2015-08-16 08:32:16
○ 2018-07-31 16:50:12
○ 2026-04-13 16:06:58

●A216.205.152.1322015-08-16 → 2026-04-13 · 2 obs

● 2015-08-16 08:32:16
● 2026-04-13 16:06:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net...	-
21-learnonline.com	ns47.domaincontrol.com, ns48.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.71.24

NS records: ns47.domaincontrol.com, ns48.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21-learnonline.com (unsigned zone)

⏱️ Timing

Total: 90ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.205.152.132`
NS	2	`ns47.domaincontrol.com, ns48.domaincontrol.com`
MX	2	`mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0)`
SOA	1	`NS47.DOMAINCONTROL.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns47.domaincontrol.com, ns47.domaincontrol.com, ns48.domaincontrol.com...)

Analysis

IP Addresses

21-learnonline.com points to a single IP number: 216.205.152.132.

Name Servers

Delegation for 21-learnonline.com rests with two name servers, ns47.domaincontrol.com and ns48.domaincontrol.com.

21-learnonline.com shares the same name server setup as other domains, including saintpeterlutheran.org, seanmackenzie.org, edgardo.eu, division-x.org and pomonavalleyauto.com.

21-learnonline.com partially shares name servers with other domains; for instance rockawayinfo.com and newlandco.com.

Host names with two IP numbers: ns47.domaincontrol.com points to 2603:5:2172::18 and 97.74.103.24; ns48.domaincontrol.com points to 2603:5:2272::18 and 173.201.71.24.

Mail Servers

21-learnonline.com is handled by two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.

21-learnonline.com uses the same mail server configuration as other domains, such as nexteraenergygroup.us, sunped.com, adwis.com, vetsforu.com and biltbybill.com.

21-learnonline.com shares some mail servers with other domains at least partially, for example ernstsepia.de.

Host names with one IP number: mailstore1.secureserver.net points to 92.204.80.3; smtp.secureserver.net points to 92.204.80.0.

21-learnonline.com - robtex.com