`contractors-corp.com`

DNSSEC	⚠️ Not signed
A	50.18.243.165^{🇺🇸 Amazon50.18.224.0/19 EC2 SFO prefix}
		PTR	`ec2-50-18-243-165.us-west-1.compute.amazonaws.com`
A	54.177.246.169^{🇺🇸 Amazon54.176.0.0/15 EC2 SFO prefix}
NS	`ns-1292.awsdns-33.org` ⭐
		A	2600:9000:5305:c00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1292.awsdns-33.org`
		A	205.251.197.12^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1292.awsdns-33.org`
NS	`ns-1799.awsdns-32.co.uk`
		A	2600:9000:5307:700::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1799.awsdns-32.co.uk`
		A	205.251.199.7^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1799.awsdns-32.co.uk`
NS	`ns-313.awsdns-39.com`
		A	2600:9000:5301:3900::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-313.awsdns-39.com`
		A	205.251.193.57^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-313.awsdns-39.com`
NS	`ns-747.awsdns-29.net`
		A	2600:9000:5302:eb00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-747.awsdns-29.net`
		A	205.251.194.235^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-747.awsdns-29.net`
SOA	`ns-1292.awsdns-33.org`awsdns-hostmaster@amazon.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=1774564232

Same first word

contractors-corp.com

DNS History

20 records (6 active, 14 former)

●NSns-1292.awsdns-33.org2026-02-24 → 2026-03-26 · 3 obs

○ 2019-12-28 16:32:58
● 2026-02-24 20:12:08
● 2026-03-26 22:52:44

●NSns-1799.awsdns-32.co.uk2026-02-24 → 2026-03-26 · 3 obs

○ 2019-12-28 16:32:58
● 2026-02-24 20:12:08
● 2026-03-26 22:52:44

●NSns-313.awsdns-39.com2026-02-24 → 2026-03-26 · 3 obs

○ 2019-12-28 16:32:58
● 2026-02-24 20:12:08
● 2026-03-26 22:52:44

●NSns-747.awsdns-29.net2026-02-24 → 2026-03-26 · 3 obs

○ 2019-12-28 16:32:58
● 2026-02-24 20:12:08
● 2026-03-26 22:52:44

○NSns33.domaincontrol.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:34:36
○ 2019-12-28 16:32:58
○ 2026-03-26 22:52:44

○NSns34.domaincontrol.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:34:36
○ 2019-12-28 16:32:58
○ 2026-03-26 22:52:44

○MXalt1.aspmx.l.google.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:34:36
○ 2019-12-28 16:32:58
○ 2026-03-26 22:52:44

○MXalt2.aspmx.l.google.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:34:36
○ 2019-12-28 16:32:58
○ 2026-03-26 22:52:44

○MXaspmx.l.google.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:34:36
○ 2019-12-28 16:32:58
○ 2026-03-26 22:52:44

○MXaspmx2.googlemail.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:34:36
○ 2019-12-28 16:32:58
○ 2026-03-26 22:52:44

○MXaspmx3.googlemail.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:34:36
○ 2019-12-28 16:32:58
○ 2026-03-26 22:52:44

○A184.168.221.292016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:34:36
○ 2019-12-28 16:32:58
○ 2026-03-26 22:52:44

●A50.18.243.1652026-03-26 → 2026-03-26 · 3 obs

○ 2026-03-08 02:26:18
● 2026-03-26 22:52:42
● 2026-03-26 22:52:44

○A52.52.217.1312026-03-08 → 2026-03-08 · 4 obs

○ 2026-02-24 20:12:08
● 2026-03-08 02:26:18
○ 2026-03-26 22:52:42
○ 2026-03-26 22:52:44

○A52.8.121.2252026-02-24 → 2026-03-26 · 2 obs

○ 2026-02-24 20:12:08
○ 2026-03-26 22:52:44

○A54.177.128.302026-02-24 → 2026-02-24 · 4 obs

○ 2019-12-28 16:32:58
● 2026-02-24 20:12:08
○ 2026-03-08 02:26:18
○ 2026-03-26 22:52:44

●A54.177.246.1692026-03-26 → 2026-03-26 · 3 obs

○ 2026-03-08 02:26:18
● 2026-03-26 22:52:42
● 2026-03-26 22:52:44

○A54.183.100.572026-03-08 → 2026-03-08 · 4 obs

○ 2026-02-24 20:12:08
● 2026-03-08 02:26:18
○ 2026-03-26 22:52:42
○ 2026-03-26 22:52:44

○A54.241.6.822026-02-24 → 2026-02-24 · 4 obs

○ 2019-12-28 16:32:58
● 2026-02-24 20:12:08
○ 2026-03-08 02:26:18
○ 2026-03-26 22:52:44

○A54.67.96.2012026-02-24 → 2026-03-26 · 2 obs

○ 2026-02-24 20:12:08
○ 2026-03-26 22:52:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, d.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net...	-
contractors-corp.com	ns-747.awsdns-29.net, ns-313.awsdns-39.com, ns-1799.awsdns-32.co.uk, ns-1292.awsdns-33.org	1 record

✅ Authoritative Response

Server:205.251.197.12

NS records: ns-747.awsdns-29.net, ns-313.awsdns-39.com, ns-1799.awsdns-32.co.uk, ns-1292.awsdns-33.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contractors-corp.com (unsigned zone)

⏱️ Timing

Total: 403ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`50.18.243.165, 54.177.246.169`
NS	4	`ns-1292.awsdns-33.org, ns-1799.awsdns-32.co.uk...`
SOA	1	`ns-1292.awsdns-33.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-313.awsdns-39.com)

Analysis

IP Addresses

contractors-corp.com points to two IP numbers: 50.18.243.165 and 54.177.246.169.

Name Servers

contractors-corp.com is delegated to four name servers: ns-313.awsdns-39.com, ns-747.awsdns-29.net, ns-1292.awsdns-33.org and ns-1799.awsdns-32.co.uk.

contractors-corp.com shares name servers with other domains at least partially, for instance 150.212.146.122.in-addr.arpa, proadata.com, d2c4xbydqpy4v8.cloudfront.net, cloudspotsolutions.com and d1zt1ce74banu3.cloudfront.net.

These name servers are commonly used with ns-1873.awsdns-42.co.uk, ns-1354.awsdns-41.org, ns-287.awsdns-35.com and ns-847.awsdns-41.net.

Host names with two IP numbers:

ns-313.awsdns-39.com resolves to 2600:9000:5301:3900::1 and 205.251.193.57.

ns-747.awsdns-29.net resolves to 2600:9000:5302:eb00::1 and 205.251.194.235.

ns-1292.awsdns-33.org resolves to 2600:9000:5305:c00::1 and 205.251.197.12.

ns-1799.awsdns-32.co.uk resolves to 2600:9000:5307:700::1 and 205.251.199.7.

contractors-corp.com - robtex.com