`twccontracting.com`

DNSSEC	⚠️ Not signed
A	162.159.135.42^{Cloudflare162.159.128.0/19 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns39.domaincontrol.com` ⭐
		A	2603:5:21d1::14^{🇺🇸 GODADDY-DNS2603:5:21d0::/44}
			PTR	`ns39.domaincontrol.com`
		A	97.74.109.20^{🇺🇸 GODADDY-DNS97.74.108.0/23}
			PTR	`ns39.domaincontrol.com`
NS	`ns40.domaincontrol.com`
		A	2603:5:22d1::14^{🇺🇸 GODADDY-DNS2603:5:22d0::/44}
			PTR	`ns40.domaincontrol.com`
		A	173.201.77.20^{🇺🇸 GODADDY-DNS173.201.76.0/23}
			PTR	`ns40.domaincontrol.com`
MX	`antispam1.concentus.net` ⭐
		A	64.94.64.139^{🇺🇸 AS4637364.94.64.0/24}
			PTR	`antispam1.concentus.net`
MX	`antispam2.concentus.net`⁽³⁰⁾
		A	64.94.64.133^{🇺🇸 AS4637364.94.64.0/24}
			PTR	`antispam2.concentus.net`
TXT	`ca3-0ad33cca20c7419488976667dc918e4b`
TXT	`MS=ms69753888`
TXT	`4rmt22omod45espsc13hbe90o1`
TXT	`MS=ms82588884`
TXT	`v=spf1 +a +mx +ip4:63.247.82.210 +ip4:63.247.82.220 +ip4:205.251.139.10 +ip4:...`
SOA	`ns39.domaincontrol.com`dns@jomax.net 2026-06-04 #0

`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=1781500960

Subdomains

www.twccontracting.com

Same first word

twccontracting.com

DNS History

9 records (5 active, 4 former)

●NSns39.domaincontrol.com2015-08-07 → 2026-06-15 · 2 obs

● 2015-08-07 04:00:04
● 2026-06-15 05:45:08

●NSns40.domaincontrol.com2015-08-07 → 2026-06-15 · 2 obs

● 2015-08-07 04:00:04
● 2026-06-15 05:45:08

●MXantispam1.concentus.net2020-01-27 → 2026-06-15 · 3 obs

○ 2017-02-19 12:37:12
● 2020-01-27 06:12:34
● 2026-06-15 05:45:08

●MXantispam2.concentus.net2020-01-27 → 2026-06-15 · 3 obs

○ 2017-02-19 12:37:12
● 2020-01-27 06:12:34
● 2026-06-15 05:45:08

○MXtwccontracting-com.mail.protection.outlook.com2015-08-07 → 2017-02-19 · 4 obs

● 2015-08-07 04:00:04
● 2017-02-19 12:37:12
○ 2020-01-27 06:12:34
○ 2026-06-15 05:45:08

●A162.159.135.422026-04-26 → 2026-06-15 · 3 obs

○ 2020-01-27 06:12:34
● 2026-04-26 09:49:38
● 2026-06-15 05:45:08

○A207.58.128.142020-01-27 → 2020-01-27 · 4 obs

○ 2017-02-19 12:37:12
● 2020-01-27 06:12:34
○ 2026-04-26 09:49:38
○ 2026-06-15 05:45:08

○A64.94.64.1402016-07-08 → 2017-02-19 · 5 obs

○ 2016-03-06 02:26:30
● 2016-07-08 06:47:52
● 2017-02-19 12:37:12
○ 2020-01-27 06:12:34
○ 2026-06-15 05:45:08

○A64.94.65.292015-08-07 → 2016-03-06 · 4 obs

● 2015-08-07 04:00:04
● 2016-03-06 02:26:30
○ 2016-07-08 06:47:52
○ 2026-06-15 05:45:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
twccontracting.com	ns39.domaincontrol.com, ns40.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.109.20

NS records: ns39.domaincontrol.com, ns40.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for twccontracting.com (unsigned zone)

⏱️ Timing

Total: 193ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.159.135.42`
NS	2	`ns39.domaincontrol.com, ns40.domaincontrol.com`
MX	2	`antispam1.concentus.net (pri: 10), antispam2.concentus.net (pri: 30)`
TXT	5	`ca3-0ad33cca20c7419488976667dc918e4b, MS=ms69753888...`
SOA	1	`ns39.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns39.domaincontrol.com, ns39.domaincontrol.com, ns40.domaincontrol.com...)

Analysis

Hierarchy

The domain www.twccontracting.com falls under the parent twccontracting.com.

IP Addresses

twccontracting.com resolves to just one IP address, 162.159.135.42.

Two other host names, along with havering-college.ac.uk, dokopoint.com and granburywinewalk.com, also share IP numbers with twccontracting.com.

Name Servers

twccontracting.com is served by two delegated name servers, ns39.domaincontrol.com and ns40.domaincontrol.com.

twccontracting.com shares its NS records with other domains, for example polaristeenprogram.com, physicianadvisorygroup.com, v-gen.us and two others.

Each of the two host names carries two IP addresses: ns39.domaincontrol.com points to 97.74.109.20 and 2603:5:21d1::14, and ns40.domaincontrol.com points to 173.201.77.20 and 2603:5:22d1::14.

Mail Servers

twccontracting.com is served by two mail servers, antispam1.concentus.net and antispam2.concentus.net.

twccontracting.com, nationalpres.org and nps-dc.org all share the same mail server setup.

twccontracting.com overlaps on mail servers with several other domains, for example concentus.net, natpresch.org, concent.us and stjes.com.

It is common to find these mail servers used together with the mail servers mail.concentus.net and owa.natpresch.org.

Each of antispam1.concentus.net and antispam2.concentus.net has one IP address: antispam1.concentus.net uses 64.94.64.139 and antispam2.concentus.net uses 64.94.64.133.

twccontracting.com - robtex.com