`21contracting.com`

DNSSEC	⚠️ Not signed
A	40.142.31.34^{🇺🇸 TierPoint40.142.16.0/20 LLC}
		PTR	`contractorwebzone.com`
NS	`ns63.domaincontrol.com` ⭐
		A	2603:5:2154::2a^{🇺🇸 GODADDY-DNS2603:5:2150::/44}
			PTR	`ns63.domaincontrol.com`
		A	97.74.101.42^{🇺🇸 GODADDY-DNS97.74.100.0/23}
			PTR	`ns63.domaincontrol.com`
NS	`ns64.domaincontrol.com`
		A	2603:5:2254::2a^{🇺🇸 GODADDY-DNS2603:5:2250::/44}
			PTR	`ns64.domaincontrol.com`
		A	173.201.69.42^{🇺🇸 GODADDY-DNS173.201.68.0/23}
			PTR	`ns64.domaincontrol.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4003:c30::1b^{🇺🇸 Google2607:f8b0:4003::/48}
			PTR	`yutulis-in-f27.1e100.net`
		A	74.125.27.26^{🇺🇸 Google74.125.27.0/24}
			PTR	`yutulis-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4001:c70::1a^{🇺🇸 Google2607:f8b0:4001::/48}
			PTR	`yucbful-in-f26.1e100.net`
		A	192.178.209.26^{🇺🇸 Google192.178.209.0/24}
			PTR	`yucbful-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4024:c0d::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`mj-in-f27.1e100.net`
		A	192.178.152.26^{🇺🇸 Google192.178.152.0/24}
			PTR	`mj-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:403::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`gg-in-f26.1e100.net`
		A	142.250.96.27^{🇺🇸 Google142.250.96.0/24}
			PTR	`gg-in-f27.1e100.net`
SOA	`ns63.domaincontrol.com`dns@jomax.net 2020-03-04 #6

`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

21contracting.com

DNS History

13 records (8 active, 5 former)

○NSns45.domaincontrol.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 19:17:16
○ 2017-10-30 03:56:44
○ 2026-03-12 06:06:00

○NSns46.domaincontrol.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 19:17:16
○ 2017-10-30 03:56:44
○ 2026-03-12 06:06:00

●NSns63.domaincontrol.com2026-02-25 → 2026-03-12 · 3 obs

○ 2017-10-30 03:56:44
● 2026-02-25 00:58:42
● 2026-03-12 06:06:00

●NSns64.domaincontrol.com2026-02-25 → 2026-03-12 · 3 obs

○ 2017-10-30 03:56:44
● 2026-02-25 00:58:42
● 2026-03-12 06:06:00

●MXalt1.aspmx.l.google.com2026-02-25 → 2026-03-12 · 3 obs

○ 2017-10-30 03:56:44
● 2026-02-25 00:58:42
● 2026-03-12 06:06:00

●MXalt2.aspmx.l.google.com2026-02-25 → 2026-03-12 · 3 obs

○ 2017-10-30 03:56:44
● 2026-02-25 00:58:42
● 2026-03-12 06:06:00

●MXalt3.aspmx.l.google.com2026-02-25 → 2026-03-12 · 3 obs

○ 2017-10-30 03:56:44
● 2026-02-25 00:58:42
● 2026-03-12 06:06:00

●MXalt4.aspmx.l.google.com2026-02-25 → 2026-03-12 · 3 obs

○ 2017-10-30 03:56:44
● 2026-02-25 00:58:42
● 2026-03-12 06:06:00

●MXaspmx.l.google.com2026-02-25 → 2026-03-12 · 3 obs

○ 2017-10-30 03:56:44
● 2026-02-25 00:58:42
● 2026-03-12 06:06:00

○MXmailstore1.secureserver.net2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 19:17:16
○ 2017-10-30 03:56:44
○ 2026-03-12 06:06:00

○MXsmtp.secureserver.net2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 19:17:16
○ 2017-10-30 03:56:44
○ 2026-03-12 06:06:00

○A160.153.136.12016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 19:17:16
○ 2017-10-30 03:56:44
○ 2026-03-12 06:06:00

●A40.142.31.342026-02-25 → 2026-03-12 · 3 obs

○ 2017-10-30 03:56:44
● 2026-02-25 00:58:42
● 2026-03-12 06:06:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
21contracting.com	ns63.domaincontrol.com, ns64.domaincontrol.com	4 records

✅ Authoritative Response

Server: 173.201.69.42

NS records: ns63.domaincontrol.com, ns64.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21contracting.com (unsigned zone)

⏱️ Timing

Total: 299ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`40.142.31.34`
NS	2	`ns63.domaincontrol.com, ns64.domaincontrol.com`
MX	5	`aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...`
SOA	1	`ns63.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns63.domaincontrol.com, ns63.domaincontrol.com, ns64.domaincontrol.com...)

Analysis

IP Addresses

21contracting.com resolves to one IP number: 40.142.31.34.

Other host names, for instance fordroofing.com, wertzandco.com, woodfloorspecialistsinc.com, northernpacificroofing.com and acahomeimprovement.com share IP numbers with 21contracting.com.

Name Servers

21contracting.com's delegation uses two name servers: ns63.domaincontrol.com and ns64.domaincontrol.com.

21contracting.com uses the same name server setup as other domains, such as eose.net, thelhsf.org, plattsairandheat.com, amaxhs.com and endof.today.