firstclassservices.com - dns.ninja

`firstclassservices.com`

DNSSEC	⚠️ Not signed
A	141.193.213.10^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
A	141.193.213.11^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
NS	`ns1.bdm.microsoftonline.com` ⭐
		A	2603:1061:0:700::d0^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-208.azure-dns.com`
		A	13.107.236.208^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-208.azure-dns.com`
NS	`ns2.bdm.microsoftonline.com`
		A	2620:1ec:8ec:700::d0^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-208.azure-dns.net`
		A	150.171.21.208^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-208.azure-dns.net`
NS	`ns3.bdm.microsoftonline.com`
		A	2a01:111:4000:700::d0^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-208.azure-dns.org`
		A	204.14.183.208^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-208.azure-dns.org`
NS	`ns4.bdm.microsoftonline.com`
		A	2620:1ec:bda:700::d0^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-208.azure-dns.info`
		A	208.84.5.208^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-208.azure-dns.info`
MX	`firstclassservices-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c927::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr21cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:f805::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr03cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:f910::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy5pr03cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:f913::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy1pr03cu00100.inbound.protection.outlook.com`
		A	52.101.41.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00305.inbound.protection.outlook.com`
		A	52.101.41.26^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01702.inbound.protection.outlook.com`
		A	52.101.50.1^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr05cu00401.inbound.protection.outlook.com`
		A	52.101.194.3^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch1pr04cu00103.inbound.protection.outlook.com`
TXT	`mscid=4lBquvl3aFLMGhJVJmyt7qbVsXR1xPu3E4O8W8gYszIqLTmYRo+suROAsKGsLkAu3JcjnMs...`
TXT	`v=spf1 ip4:96.60.230.114 ip4:96.60.230.116 include:spf.protection.outlook.com...`
TXT	`google-site-verification=3_7wert0iNSmZv58hnkm4uTDB3RDlmro9Pc3GdPmyYo`
SOA	`ns1.bdm.microsoftonline.com`azuredns-hostmaster@microsoft.com 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=1782837221

Same first word

firstclassservices.de

firstclassservices.com

DNS History

12 records (7 active, 5 former)

●NSns1.bdm.microsoftonline.com2026-02-15 → 2026-06-30 · 3 obs

○ 2019-12-24 05:11:32
● 2026-02-15 18:28:38
● 2026-06-30 16:40:44

●NSns2.bdm.microsoftonline.com2026-02-15 → 2026-06-30 · 3 obs

○ 2019-12-24 05:11:32
● 2026-02-15 18:28:38
● 2026-06-30 16:40:44

●NSns3.bdm.microsoftonline.com2026-02-15 → 2026-06-30 · 3 obs

○ 2019-12-24 05:11:32
● 2026-02-15 18:28:38
● 2026-06-30 16:40:44

●NSns4.bdm.microsoftonline.com2026-02-15 → 2026-06-30 · 3 obs

○ 2019-12-24 05:11:32
● 2026-02-15 18:28:38
● 2026-06-30 16:40:44

○NSns95.worldnic.com2015-06-02 → 2019-12-24 · 4 obs

● 2015-06-02 23:37:40
● 2019-12-24 05:11:32
○ 2026-02-15 18:28:38
○ 2026-06-30 16:40:44

○NSns96.worldnic.com2015-06-02 → 2019-12-24 · 4 obs

● 2015-06-02 23:37:40
● 2019-12-24 05:11:32
○ 2026-02-15 18:28:38
○ 2026-06-30 16:40:44

●MXfirstclassservices-com.mail.protection.outlook.com2026-02-15 → 2026-06-30 · 3 obs

○ 2019-12-24 05:11:32
● 2026-02-15 18:28:38
● 2026-06-30 16:40:44

○MXmx1.smtp.exch080.serverdata.net2015-06-02 → 2019-12-24 · 4 obs

● 2015-06-02 23:37:40
● 2019-12-24 05:11:32
○ 2026-02-15 18:28:38
○ 2026-06-30 16:40:44

○MXmx2.smtp.exch080.serverdata.net2015-06-02 → 2019-12-24 · 4 obs

● 2015-06-02 23:37:40
● 2019-12-24 05:11:32
○ 2026-02-15 18:28:38
○ 2026-06-30 16:40:44

●A141.193.213.102026-02-15 → 2026-06-30 · 3 obs

○ 2019-12-24 05:11:32
● 2026-02-15 18:28:38
● 2026-06-30 16:40:44

●A141.193.213.112026-02-15 → 2026-06-30 · 3 obs

○ 2019-12-24 05:11:32
● 2026-02-15 18:28:38
● 2026-06-30 16:40:44

○A98.129.229.2242015-06-02 → 2019-12-24 · 4 obs

● 2015-06-02 23:37:40
● 2019-12-24 05:11:32
○ 2026-02-15 18:28:38
○ 2026-06-30 16:40:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
firstclassservices.com	ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com	8 records

✅ Authoritative Response

Server:13.107.236.208

NS records: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstclassservices.com (unsigned zone)

⏱️ Timing

Total: 231ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`141.193.213.10, 141.193.213.11`
NS	4	`ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...`
MX	1	`firstclassservices-com.mail.protection.o`
TXT	3	`mscid=4lBquvl3aFLMGhJVJmyt7qbVsXR1xPu3E4, v=spf1 ip4:96.60.230.114 ip4:96.60.230.1...`
SOA	1	`ns1.bdm.microsoftonline.com azuredns-hos`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.bdm.microsoftonline.com, ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...)

Analysis

IP Addresses

firstclassservices.com has two IP addresses: 141.193.213.10 and 141.193.213.11

Two other host names, along with ecornell.cornell.edu, oconomowoctreeservice.com and atuscanaffair.com, also share IP numbers with firstclassservices.com.

Name Servers

The NS records for firstclassservices.com point to four name servers: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.

At least some of firstclassservices.com's name servers are shared with other domains, for example ericfontaine.ca, rodotainer.com.br, istone.com.mx and two more.

Four hostnames, each resolving to a pair of IP addresses: ns1.bdm.microsoftonline.com directs to 13.107.236.208 and 2603:1061:0:700::d0; ns2.bdm.microsoftonline.com directs to 150.171.21.208 and 2620:1ec:8ec:700::d0; ns3.bdm.microsoftonline.com directs to 204.14.183.208 and 2a01:111:4000:700::d0; ns4.bdm.microsoftonline.com directs to 208.84.5.208 and 2620:1ec:bda:700::d0.

Mail Servers

The sole mail server for firstclassservices.com is firstclassservices-com.mail.protection.outlook.com.

With 8 IP addresses total, firstclassservices-com.mail.protection.outlook.com resolves to 52.101.41.21, 52.101.41.26, 52.101.50.1 and 5 others.