oelsner.com - dns.ninja

`oelsner.com`

DNSSEC	⚠️ Not signed
A	216.239.32.21^{🇺🇸 Google216.239.32.0/24}
		PTR	`any-in-2015.1e100.net`
A	216.239.36.21^{🇺🇸 Google216.239.36.0/24}
A	216.239.38.21^{🇺🇸 Google216.239.38.0/24}
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` ⚠️ Not in parent delegation
		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` ⚠️ Not in parent delegation
		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	`oelsner-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c91d::a^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr21cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr04cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:f90d::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr0501cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:f90f::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr04cu00201.inbound.protection.outlook.com`
		A	40.93.192.1^{🇺🇸 Microsoft40.80.0.0/12}
			PTR	`mail-dm5pr02cu00201.inbound.protection.outlook.com`
		A	52.101.8.44^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm5pr04cu00104.inbound.protection.outlook.com`
		A	52.101.10.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr03cu00202.inbound.protection.outlook.com`
		A	52.101.42.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr04cu00106.inbound.protection.outlook.com`
TXT	`mscid=8q84LNHKaQgWP2Esanus6YgU00lyg8N0x02XR7jeaFlqefLBrL8yT15Gv+duvuJGYJYJVNp...`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
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=1786018859

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DNS History

12 records (8 active, 4 former)

●NSns1.bdm.microsoftonline.com2026-06-14 → 2026-08-06 · 3 obs

○ 2020-02-06 23:17:00
● 2026-06-14 00:23:26
● 2026-08-06 12:27:52

●NSns2.bdm.microsoftonline.com2026-06-14 → 2026-08-06 · 3 obs

○ 2020-02-06 23:17:00
● 2026-06-14 00:23:26
● 2026-08-06 12:27:52

●NSns3.bdm.microsoftonline.com2026-06-14 → 2026-08-06 · 3 obs

○ 2020-02-06 23:17:00
● 2026-06-14 00:23:26
● 2026-08-06 12:27:52

●NSns4.bdm.microsoftonline.com2026-06-14 → 2026-08-06 · 3 obs

○ 2020-02-06 23:17:00
● 2026-06-14 00:23:26
● 2026-08-06 12:27:52

○NSns5.worldnic.com2015-06-24 → 2020-02-06 · 4 obs

● 2015-06-24 09:21:54
● 2020-02-06 23:17:00
○ 2026-06-14 00:23:26
○ 2026-08-06 12:27:52

○NSns6.worldnic.com2015-06-24 → 2020-02-06 · 4 obs

● 2015-06-24 09:21:54
● 2020-02-06 23:17:00
○ 2026-06-14 00:23:26
○ 2026-08-06 12:27:52

●MXoelsner-com.mail.protection.outlook.com2026-06-14 → 2026-08-06 · 3 obs

○ 2020-02-06 23:17:00
● 2026-06-14 00:23:26
● 2026-08-06 12:27:52

○MXp.webcom.ctmail.com2015-11-17 → 2017-02-13 · 4 obs

● 2015-11-17 18:44:02
● 2017-02-13 12:46:14
○ 2020-02-06 23:17:00
○ 2026-08-06 12:27:52

○A205.178.189.1292015-06-24 → 2016-02-28 · 4 obs

● 2015-06-24 09:21:54
● 2016-02-28 11:32:02
○ 2016-06-23 02:45:00
○ 2026-08-06 12:27:52

●A216.239.32.212016-06-23 → 2026-08-06 · 3 obs

○ 2016-02-28 11:32:02
● 2016-06-23 02:45:00
● 2026-08-06 12:27:52

●A216.239.36.212016-06-23 → 2026-08-06 · 3 obs

○ 2016-02-28 11:32:02
● 2016-06-23 02:45:00
● 2026-08-06 12:27:52

●A216.239.38.212016-06-23 → 2026-08-06 · 3 obs

○ 2016-02-28 11:32:02
● 2016-06-23 02:45:00
● 2026-08-06 12:27:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
oelsner.com	ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com	4 records

✅ Authoritative Response

Server:150.171.21.208

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for oelsner.com (unsigned zone)

⏱️ Timing

Total: 248ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`216.239.38.21, 216.239.32.21...`
NS	4	`ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...`
MX	1	`oelsner-com.mail.protection.outlook.com`
TXT	2	`mscid=8q84LNHKaQgWP2Esanus6YgU00lyg8N0x0, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.bdm.microsoftonline.com azuredns-hos`

📌 Glue Records Collected

Total: 4

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

Analysis

IP Addresses

oelsner.com maps to three IP numbers — 216.239.32.21, 216.239.36.21 and 216.239.38.21.

Additional host names — ruskets.com, supportis.cz, oi-ng.com and two others — share IP numbers with oelsner.com.

Name Servers

oelsner.com has four authoritative name servers: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.

oelsner.com has at least partial name server overlap with other domains, such as era-sas.com, ymcpa.com, curvotech.com and two others.

ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com all point to exactly two IP numbers each: ns1.bdm.microsoftonline.com → 13.107.236.208 and 2603:1061:0:700::d0; ns2.bdm.microsoftonline.com → 150.171.21.208 and 2620:1ec:8ec:700::d0; ns3.bdm.microsoftonline.com → 204.14.183.208 and 2a01:111:4000:700::d0; ns4.bdm.microsoftonline.com → 208.84.5.208 and 2620:1ec:bda:700::d0.

Mail Servers

oelsner.com has one mail server: oelsner-com.mail.protection.outlook.com.

oelsner-com.mail.protection.outlook.com points to 8 IP numbers: 40.93.192.1, 52.101.8.44, 52.101.10.2 and 5 other.