`bsiexternal.com`

DNSSEC	⚠️ Not signed
NS	`dns1.cscdns.net` ⭐
		A	2610:a1:1022::100^{🇺🇸 MAINT-ID-120082610:a1:1022::/48 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
		A	156.154.130.100^{🇺🇸 MAINT-ID-12008156.154.130.0/24 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
NS	`dns2.cscdns.net`
		A	2610:a1:1023::100^{🇺🇸 MAINT-ID-120082610:a1:1023::/48 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
		A	156.154.131.100^{🇺🇸 MAINT-ID-12008156.154.131.0/24 Neustar}
			PTR	`ns2.arcemus.com`
			PTR	`nusdns06.digitalarchives.com`
			PTR	`ns3.domainnetwork.com`
			PTR	`ns3.euro909.com`
			PTR	`indom80.indomco.hk`
			PTR	`ns2.ascio.net`
			PTR	`ns4.ascio.net`
			PTR	`dns2.cscdns.net`
			PTR	`pdns2.cscdns.net`
			PTR	`indom20.indomco.net`
			PTR	`ns2.netnames.net`
			PTR	`ns4.netnames.net`
			PTR	`ns6.netnames.net`
			PTR	`ns8.netnames.net`
MX	`bsiexternal-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::5^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00205.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::4^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr04cu00504.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::7^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::20^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00400.inbound.protection.outlook.com`
		A	52.101.68.12^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	52.101.68.32^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00200.inbound.protection.outlook.com`
		A	52.101.73.1^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am3pr04cu00501.inbound.protection.outlook.com`
		A	52.101.73.28^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00204.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
SOA	`dns1.cscdns.net`hostmaster@cscdns.net 2009-03-30 #24

`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=1776708277

Subdomains

webmail.bsiexternal.com

Same first word

bsiexternal.com

DNS History

5 records (3 active, 2 former)

●NSdns1.cscdns.net2015-06-18 → 2026-04-20 · 2 obs

● 2015-06-18 04:43:10
● 2026-04-20 18:20:50

●NSdns2.cscdns.net2015-06-18 → 2026-04-20 · 2 obs

● 2015-06-18 04:43:10
● 2026-04-20 18:20:50

●MXbsiexternal-com.mail.protection.outlook.com2026-04-10 → 2026-04-20 · 3 obs

○ 2017-09-26 15:59:50
● 2026-04-10 15:39:54
● 2026-04-20 18:20:50

○MXcluster1.eu.messagelabs.com2015-06-18 → 2017-09-26 · 4 obs

● 2015-06-18 04:43:10
● 2017-09-26 15:59:50
○ 2026-04-10 15:39:54
○ 2026-04-20 18:20:50

○MXcluster1a.eu.messagelabs.com2015-06-18 → 2017-09-26 · 4 obs

● 2015-06-18 04:43:10
● 2017-09-26 15:59:50
○ 2026-04-10 15:39:54
○ 2026-04-20 18:20:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net...	-
bsiexternal.com	dns1.cscdns.net, dns2.cscdns.net	-

✅ Authoritative Response

Server:156.154.131.100

NS records: dns1.cscdns.net, dns2.cscdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bsiexternal.com (unsigned zone)

⏱️ Timing

Total: 796ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns1.cscdns.net, dns2.cscdns.net`
MX	1	`bsiexternal-com.mail.protection.outlook.`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`dns1.cscdns.net hostmaster.cscdns.net`

Analysis

Hierarchy

bsiexternal.com is the parent of webmail.bsiexternal.com.

Name Servers

bsiexternal.com is delegated to two name servers: dns1.cscdns.net and dns2.cscdns.net.

bsiexternal.com uses the same name server setup as other domains such as rheinhuttepumpen.cn, longdiandoor.com, braas.hu, quiltednorthernultraplush.club and ovationbouquet.com.

Host names with two IP numbers:

dns1.cscdns.net points to 2610:a1:1022::100 and 156.154.130.100; dns2.cscdns.net points to 2610:a1:1023::100 and 156.154.131.100.

Mail Servers

bsiexternal.com is handled by a single mail server, bsiexternal-com.mail.protection.outlook.com.

Host name bsiexternal-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::5, 2a01:111:f403:ca09::4, 2a01:111:f403:ca09::7, 2a01:111:f403:ca09::20, 52.101.68.12, 52.101.68.32, 52.101.73.1 and 52.101.73.28.

bsiexternal.com - robtex.com

bsiexternal.com

com