`microsoftcertification.us`

DNSSEC	⚠️ Not signed
A	20.70.246.20^{🇦🇺 Microsoft20.64.0.0/10}
A	20.76.201.171^{🇳🇱 Microsoft20.64.0.0/10}
A	20.112.250.133^{🇺🇸 Microsoft20.64.0.0/10}
A	20.231.239.246^{🇺🇸 Microsoft20.192.0.0/10}
A	20.236.44.162^{🇺🇸 Microsoft20.192.0.0/10}
NS	`ns1-01.azure-dns.com` ⭐
		A	2603:1061:0:700::1^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-01.azure-dns.com`
		A	13.107.236.1^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-01.azure-dns.com`
NS	`ns2-01.azure-dns.net`
		A	2620:1ec:8ec:700::1^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-01.azure-dns.net`
		A	150.171.21.1^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-01.azure-dns.net`
NS	`ns3-01.azure-dns.org`
		A	2a01:111:4000:700::1^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-01.azure-dns.org`
		A	204.14.183.1^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-01.azure-dns.org`
NS	`ns4-01.azure-dns.info`
		A	2620:1ec:bda:700::1^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-01.azure-dns.info`
		A	208.84.5.1^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-01.azure-dns.info`
SOA	`ns1-01.azure-dns.com`azuredns-hostmaster@microsoft.com serial=1

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1773555288

Same first word

microsoftcertification.biz

microsoftcertification.us

microsoftcertification.com

microsoftcertification.net

microsoftcertification.degree

DNS History

17 records (9 active, 8 former)

●NSns1-01.azure-dns.com2026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

○NSns1.msft.net2015-05-16 → 2017-05-27 · 4 obs

● 2015-05-16 05:28:38
● 2017-05-27 18:55:14
○ 2026-02-28 11:39:00
○ 2026-03-22 22:33:06

●NSns2-01.azure-dns.net2026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

○NSns2.msft.net2015-05-16 → 2017-05-27 · 4 obs

● 2015-05-16 05:28:38
● 2017-05-27 18:55:14
○ 2026-02-28 11:39:00
○ 2026-03-22 22:33:06

●NSns3-01.azure-dns.org2026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

○NSns3.msft.net2015-05-16 → 2017-05-27 · 4 obs

● 2015-05-16 05:28:38
● 2017-05-27 18:55:14
○ 2026-02-28 11:39:00
○ 2026-03-22 22:33:06

●NSns4-01.azure-dns.info2026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

○NSns4.msft.net2015-05-16 → 2017-05-27 · 4 obs

● 2015-05-16 05:28:38
● 2017-05-27 18:55:14
○ 2026-02-28 11:39:00
○ 2026-03-22 22:33:06

●A20.112.250.1332026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

●A20.231.239.2462026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

●A20.236.44.1622026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

●A20.70.246.202026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

●A20.76.201.1712026-02-28 → 2026-03-22 · 3 obs

○ 2017-05-27 18:55:14
● 2026-02-28 11:39:00
● 2026-03-22 22:33:06

○A40.84.199.2332017-05-27 → 2017-05-27 · 4 obs

○ 2016-09-18 09:56:18
● 2017-05-27 18:55:14
○ 2026-02-28 11:39:00
○ 2026-03-22 22:33:06

○A52.178.167.1092017-05-27 → 2017-05-27 · 4 obs

○ 2016-09-18 09:56:18
● 2017-05-27 18:55:14
○ 2026-02-28 11:39:00
○ 2026-03-22 22:33:06

○A64.4.6.1002015-05-16 → 2016-09-18 · 4 obs

● 2015-05-16 05:28:38
● 2016-09-18 09:56:18
○ 2017-05-27 18:55:14
○ 2026-03-22 22:33:06

○A65.55.39.102015-05-16 → 2016-09-18 · 4 obs

● 2015-05-16 05:28:38
● 2016-09-18 09:56:18
○ 2017-05-27 18:55:14
○ 2026-03-22 22:33:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	m.cctld.us, k.cctld.us, b.cctld.us, x.cctld.us...	-
microsoftcertification.us	ns3-01.azure-dns.org, ns4-01.azure-dns.info, ns1-01.azure-dns.com, ns2-01.azure-dns.net	-

✅ Authoritative Response

Server: 150.171.21.1

NS records: ns3-01.azure-dns.org, ns4-01.azure-dns.info, ns1-01.azure-dns.com, ns2-01.azure-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for microsoftcertification.us (unsigned zone)

⏱️ Timing

Total: 757ms | Queries: -

📄 Records

Type	Count	Sample Data
A	5	`20.76.201.171, 20.112.250.133...`
NS	4	`ns1-01.azure-dns.com, ns2-01.azure-dns.net...`
SOA	1	`ns1-01.azure-dns.com azuredns-hostmaster`

Analysis

IP Addresses

Five IP numbers are pointed to by microsoftcertification.us: 20.70.246.20, 20.76.201.171, 20.112.250.133, 20.231.239.246 and 20.236.44.162.

other host names including kinectstores.com, xboxonedesignlab.cn, mircosoftmaps.com, letfizziein.com and microsoftproductionstudios.biz share IP numbers with microsoftcertification.us.

Name Servers

microsoftcertification.us is delegated to four name servers: ns1-01.azure-dns.com, ns4-01.azure-dns.info, ns2-01.azure-dns.net and ns3-01.azure-dns.org.

microsoftcertification.us at least partially shares name servers with other domains, for instance daisy.org, broad-path.com, airchecktexas.org, 137.73.20.in-addr.arpa and unidocx.com.

these name servers are commonly used alongside nsgbr.comlaude.co.uk.

Host names with two IP numbers:

ns1-01.azure-dns.com points to 2603:1061:0:700::1 and 13.107.236.1; ns4-01.azure-dns.info points to 2620:1ec:bda:700::1 and 208.84.5.1; ns2-01.azure-dns.net points to 2620:1ec:8ec:700::1 and 150.171.21.1; ns3-01.azure-dns.org points to 2a01:111:4000:700::1 and 204.14.183.1.

microsoftcertification.us - robtex.com