`itwconstructionbd.com`

DNSSEC	⚠️ Not signed
NS	`ns1.markmonitor.com` ⭐
		A	2620:10a:80a8::1^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.1^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
			PTR	`ip-149-112-160-1.defastlink.net`
NS	`ns2.markmonitor.com`
		A	2001:67c:10b8::1^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.markmonitor.com`
		A	176.97.158.1^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.markmonitor.com`
NS	`ns3.markmonitor.com`
		A	2620:10a:80a9::1^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.1^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
			PTR	`ip-149-112-161-1.defastlink.net`
NS	`ns4.markmonitor.com`
		A	2001:67c:1bc::1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.markmonitor.com`
		A	192.174.68.1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.markmonitor.com`
NS	`ns5.markmonitor.com`
		A	2620:10a:80a8::2^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.2^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
			PTR	`ip-149-112-160-2.defastlink.net`
NS	`ns6.markmonitor.com`
		A	2001:67c:10b8::3^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns6.markmonitor.com`
		A	176.97.158.3^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns6.markmonitor.com`
NS	`ns7.markmonitor.com`
		A	2620:10a:80a9::2^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.2^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
			PTR	`ip-149-112-161-2.defastlink.net`
MX	`itwconstructionbd-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c922::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr05cu00501.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch4pr04cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr03cu00403.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr02cu00101.inbound.protection.outlook.com`
		A	52.101.8.34^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm2pr04cu00102.inbound.protection.outlook.com`
		A	52.101.8.51^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm1pr04cu00203.inbound.protection.outlook.com`
		A	52.101.40.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy5pr05cu00100.inbound.protection.outlook.com`
		A	52.101.50.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00502.inbound.protection.outlook.com`
MX	`mail.itwemail.com`⁽¹⁰⁾
		A	65.243.234.36^{🇺🇸 AS2031065.243.234.0/24 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054}
			PTR	`mail.itwemail.com`
		A	65.243.234.37^{🇺🇸 AS2031065.243.234.0/24 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054}
			PTR	`mail.itwemail.com`
		A	65.243.234.39^{🇺🇸 AS2031065.243.234.0/24 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054}
			PTR	`mail.itwemail.com`
MX	`mail.itwemail.net`⁽¹⁰⁾
		A	65.243.234.36^{🇺🇸 AS2031065.243.234.0/24 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054}
			PTR	`mail.itwemail.com`
		A	65.243.234.37^{🇺🇸 AS2031065.243.234.0/24 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054}
			PTR	`mail.itwemail.com`
		A	65.243.234.39^{🇺🇸 AS2031065.243.234.0/24 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054}
			PTR	`mail.itwemail.com`
MX	`dr.itwemail.com`⁽⁴⁰⁾
		A	65.216.77.40^{🇺🇸 AS70165.192.0.0/11 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`mail.itwemail.com`
		A	65.216.77.57^{🇺🇸 AS70165.192.0.0/11 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`mail.itwemail.com`
		A	65.216.77.58^{🇺🇸 AS70165.192.0.0/11 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`mail.itwemail.com`
MX	`dr.itwemail.net`⁽⁴⁰⁾
		A	65.216.77.40^{🇺🇸 AS70165.192.0.0/11 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`mail.itwemail.com`
		A	65.216.77.57^{🇺🇸 AS70165.192.0.0/11 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`mail.itwemail.com`
		A	65.216.77.58^{🇺🇸 AS70165.192.0.0/11 MCI Communications Services, LLC d/b/a Verizon Business}
			PTR	`mail.itwemail.com`
TXT	`MS=ms36660398`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
SOA	`ns1.markmonitor.com`hostmaster@markmonitor.com 2024-03-12 #2

`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=1771291435

Same first word

itwconstructionbd.com

DNS History

18 records (12 active, 6 former)

○NSns1.itwhosting.com2015-05-22 → 2016-04-06 · 4 obs

● 2015-05-22 11:41:46
● 2016-04-06 23:03:02
○ 2017-03-21 10:25:56
○ 2026-03-24 09:39:22

○NSns1.itwhosting.net2015-05-22 → 2016-04-06 · 4 obs

● 2015-05-22 11:41:46
● 2016-04-06 23:03:02
○ 2017-03-21 10:25:56
○ 2026-03-24 09:39:22

●NSns1.markmonitor.com2017-03-21 → 2026-03-24 · 3 obs

○ 2016-04-06 23:03:02
● 2017-03-21 10:25:56
● 2026-03-24 09:39:22

○NSns2.itwhosting.com2015-05-22 → 2016-04-06 · 4 obs

● 2015-05-22 11:41:46
● 2016-04-06 23:03:02
○ 2017-03-21 10:25:56
○ 2026-03-24 09:39:22

○NSns2.itwhosting.net2015-05-22 → 2016-04-06 · 4 obs

● 2015-05-22 11:41:46
● 2016-04-06 23:03:02
○ 2017-03-21 10:25:56
○ 2026-03-24 09:39:22

●NSns2.markmonitor.com2017-03-21 → 2026-03-24 · 3 obs

○ 2016-04-06 23:03:02
● 2017-03-21 10:25:56
● 2026-03-24 09:39:22

○NSns3.itwhosting.com2015-05-22 → 2016-04-06 · 4 obs

● 2015-05-22 11:41:46
● 2016-04-06 23:03:02
○ 2017-03-21 10:25:56
○ 2026-03-24 09:39:22

○NSns3.itwhosting.net2015-05-22 → 2016-04-06 · 4 obs

● 2015-05-22 11:41:46
● 2016-04-06 23:03:02
○ 2017-03-21 10:25:56
○ 2026-03-24 09:39:22

●NSns3.markmonitor.com2017-03-21 → 2026-03-24 · 3 obs

○ 2016-04-06 23:03:02
● 2017-03-21 10:25:56
● 2026-03-24 09:39:22

●NSns4.markmonitor.com2017-03-21 → 2026-03-24 · 3 obs

○ 2016-04-06 23:03:02
● 2017-03-21 10:25:56
● 2026-03-24 09:39:22

●NSns5.markmonitor.com2017-03-21 → 2026-03-24 · 3 obs

○ 2016-04-06 23:03:02
● 2017-03-21 10:25:56
● 2026-03-24 09:39:22

●NSns6.markmonitor.com2017-03-21 → 2026-03-24 · 3 obs

○ 2016-04-06 23:03:02
● 2017-03-21 10:25:56
● 2026-03-24 09:39:22

●NSns7.markmonitor.com2017-03-21 → 2026-03-24 · 3 obs

○ 2016-04-06 23:03:02
● 2017-03-21 10:25:56
● 2026-03-24 09:39:22

●MXdr.itwemail.com2015-05-22 → 2026-03-24 · 2 obs

● 2015-05-22 11:41:46
● 2026-03-24 09:39:22

●MXdr.itwemail.net2015-05-22 → 2026-03-24 · 2 obs

● 2015-05-22 11:41:46
● 2026-03-24 09:39:22

●MXitwconstructionbd-com.mail.protection.outlook.com2015-05-22 → 2026-03-24 · 2 obs

● 2015-05-22 11:41:46
● 2026-03-24 09:39:22

●MXmail.itwemail.com2015-05-22 → 2026-03-24 · 2 obs

● 2015-05-22 11:41:46
● 2026-03-24 09:39:22

●MXmail.itwemail.net2015-05-22 → 2026-03-24 · 2 obs

● 2015-05-22 11:41:46
● 2026-03-24 09:39:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net...	-
itwconstructionbd.com	ns1.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com...	14 records

✅ Authoritative Response

Server:192.174.68.1

NS records: ns1.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com, ns2.markmonitor.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for itwconstructionbd.com (unsigned zone)

⏱️ Timing

Total: 397ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	7	`ns7.markmonitor.com, ns1.markmonitor.com...`
MX	5	`itwconstructionbd-com.mail.protection.ou, dr.itwemail.net (pri: 40)...`
TXT	2	`MS=ms36660398, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

📌 Glue Records Collected

Total: 14

Out-of-bailiwick: 14 (ns1.markmonitor.com, ns1.markmonitor.com, ns3.markmonitor.com...)

Analysis

Name Servers

itwconstructionbd.com is delegated to seven name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

itwconstructionbd.com shares name servers with other domains at least partially, for instance mtxx.com, polyvore.us, chicagotitledfw.com, lulu.lt and morecast.be.