`chemlearning.com`

DNSSEC	⚠️ Not signed
A	92.205.173.234^{🇩🇪 GODADDY-SXB92.205.168.0/21}
		PTR	`234.173.205.92.host.secureserver.net`
NS	`ns21.domaincontrol.com` ⭐
		A	2603:5:2141::b^{🇺🇸 GODADDY-DNS2603:5:2140::/44}
			PTR	`ns21.domaincontrol.com`
		A	97.74.100.11^{🇺🇸 GODADDY-DNS97.74.100.0/23}
			PTR	`ns21.domaincontrol.com`
NS	`ns22.domaincontrol.com`
		A	2603:5:2241::b^{🇺🇸 GODADDY-DNS2603:5:2240::/44}
			PTR	`ns22.domaincontrol.com`
		A	173.201.68.11^{🇺🇸 GODADDY-DNS173.201.68.0/23}
			PTR	`ns22.domaincontrol.com`
MX	`smtp.secureserver.net` ⭐
		A	216.69.141.71^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v01.prod.phx3.secureserver.net`
		A	216.69.141.84^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v01.prod.phx3.secureserver.net`
		A	216.69.141.113^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v01.prod.phx3.secureserver.net`
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
		A	216.69.141.78^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp01-v02.prod.phx3.secureserver.net`
		A	216.69.141.114^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp03-v02.prod.phx3.secureserver.net`
		A	216.69.141.162^{🇺🇸 AS398101216.69.140.0/22}
			PTR	`osplibsmtp02-v02.prod.phx3.secureserver.net`
TXT	`v=spf1 include:ispgateway.de include:secureserver.net ~all`
TXT	`D8391237`
SOA	`ns21.domaincontrol.com`dns@jomax.net 2025-10-30 #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=1774598772

Subdomains

www.chemlearning.com

Same first word

chemlearning.com

Similar names

langmichener.com

langmichener.ca

DNS History

11 records (5 active, 6 former)

○NSns1.hostaustria-dns.at2015-08-10 → 2017-04-19 · 4 obs

● 2015-08-10 09:46:58
● 2017-04-19 01:01:38
○ 2026-03-27 01:24:36
○ 2026-03-27 08:16:54

○NSns2.hostaustria-dns.at2015-08-10 → 2017-04-19 · 4 obs

● 2015-08-10 09:46:58
● 2017-04-19 01:01:38
○ 2026-03-27 01:24:36
○ 2026-03-27 08:16:54

●NSns21.domaincontrol.com2026-03-27 → 2026-03-27 · 3 obs

○ 2017-04-19 01:01:38
● 2026-03-27 01:24:36
● 2026-03-27 08:16:54

●NSns22.domaincontrol.com2026-03-27 → 2026-03-27 · 3 obs

○ 2017-04-19 01:01:38
● 2026-03-27 01:24:36
● 2026-03-27 08:16:54

○NSns3.hostaustria-dns.at2015-08-10 → 2017-04-19 · 4 obs

● 2015-08-10 09:46:58
● 2017-04-19 01:01:38
○ 2026-03-27 01:24:36
○ 2026-03-27 08:16:54

○MXmail.chemlearning.com2015-08-10 → 2017-04-19 · 4 obs

● 2015-08-10 09:46:58
● 2017-04-19 01:01:38
○ 2026-03-27 01:24:36
○ 2026-03-27 08:16:54

●MXmailstore1.secureserver.net2026-03-27 → 2026-03-27 · 3 obs

○ 2017-04-19 01:01:38
● 2026-03-27 01:24:36
● 2026-03-27 08:16:54

●MXsmtp.secureserver.net2026-03-27 → 2026-03-27 · 3 obs

○ 2017-04-19 01:01:38
● 2026-03-27 01:24:36
● 2026-03-27 08:16:54

○A213.235.239.1452015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 09:46:58
○ 2015-12-13 01:43:00
○ 2026-03-27 08:16:54

○A213.235.239.1502015-12-13 → 2017-04-19 · 5 obs

○ 2015-08-10 09:46:58
● 2015-12-13 01:43:00
● 2017-04-19 01:01:38
○ 2026-03-27 01:24:36
○ 2026-03-27 08:16:54

●A92.205.173.2342026-03-27 → 2026-03-27 · 3 obs

○ 2017-04-19 01:01:38
● 2026-03-27 01:24:36
● 2026-03-27 08:16:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
chemlearning.com	ns21.domaincontrol.com, ns22.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.100.11

NS records: ns21.domaincontrol.com, ns22.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for chemlearning.com (unsigned zone)

⏱️ Timing

Total: 172ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`92.205.173.234`
NS	2	`ns21.domaincontrol.com, ns22.domaincontrol.com`
MX	2	`smtp.secureserver.net (pri: 0), mailstore1.secureserver.net (pri: 10)`
TXT	2	`v=spf1 include:ispgateway.de include:sec, D8391237`
SOA	1	`ns21.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns21.domaincontrol.com, ns21.domaincontrol.com, ns22.domaincontrol.com...)

Analysis

Hierarchy

www.chemlearning.com is a child of chemlearning.com.

IP Addresses

chemlearning.com resolves to one IP number: 92.205.173.234.

Other host names, for instance dgfk.de, b-umf.de, imagency.de, desinger.de and muenz-fahrzeugbau.de share IP numbers with chemlearning.com.

Name Servers

chemlearning.com's delegation uses two name servers: ns21.domaincontrol.com and ns22.domaincontrol.com.

chemlearning.com uses the same name server setup as other domains, such as cripack.com, oportunlies.net, kraneal.com, feliciamuscat.com and techasana.com.

Host names with two IPs:

ns21.domaincontrol.com points to 2603:5:2141::b and 97.74.100.11

ns22.domaincontrol.com points to 2603:5:2241::b and 173.201.68.11

Mail Servers

chemlearning.com is served by two mail servers mailstore1.secureserver.net and smtp.secureserver.net.

chemlearning.com shares the same mail server setup as other domains, for instance moracci.me, dairywest.biz, trafic-innovation.ca, lovebucket.us and defyinfo.com.

chemlearning.com shares some mail servers with other domains, for instance ntmltd.com, budgetpetcare.com, lisaviolet.com and mastmart.net.

Host names with three IP numbers:

The host name mailstore1.secureserver.net resolves to 216.69.141.78, 216.69.141.114 and 216.69.141.162.

The host name smtp.secureserver.net resolves to 216.69.141.71, 216.69.141.84 and 216.69.141.113.

chemlearning.com - robtex.com