`mcmastercarrsupplyco.org`

DNSSEC	⚠️ Not signed
A	209.64.25.150^{🇺🇸 AS22034209.64.25.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown}
		PTR	`mcmaster.cn`
		PTR	`mcmater.com`
		PTR	`mcmaster-carr.nl`
		PTR	`mcmastercarr.nl`
		PTR	`mcmaster-carr.ru`
		PTR	`mcmastercarr.ru`
		PTR	`mcmaster-carr.uk`
		PTR	`mcmastercarr.us`
		PTR	`correspondence.mcmaster.com`
		PTR	`www.mcmater.com`
		PTR	`www.mcmaster-carr.nl`
		PTR	`www.mcmaster-carr.ru`
		PTR	`www.mcmastercarr.ru`
		PTR	`www.mcmaster-carr.uk`
		PTR	`www.mcmastercarr.us`
		PTR	`www.correspondence.mcmaster.com`
NS	`ns2.mcmaster.com` ⭐
		A	12.203.197.20^{🇺🇸 AS2203412.203.197.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown}
			PTR	`ns1.tmcmaster.com`
NS	`ns1.mcmaster.com`
		A	209.64.25.48^{🇺🇸 AS22034209.64.25.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown}
			PTR	`ns1.mcmaster.com`
NS	`ns3.mcmaster.com`
		A	209.64.25.47^{🇺🇸 AS22034209.64.25.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown}
			PTR	`ns3.mcmaster.com`
NS	`ns4.mcmaster.com`
		A	12.203.197.21^{🇺🇸 AS2203412.203.197.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown}
			PTR	`dnsep5002.mcmaster.com`
MX	`mx0a-00570c01.pphosted.com` ⭐
		A	205.220.166.57^{🇺🇸 Proofpoint205.220.166.0/24 Inc.}
			PTR	`mx0a-00570c01.pphosted.com`
MX	`mx0b-00570c01.pphosted.com` ⭐
		A	205.220.178.57^{🇺🇸 Proofpoint205.220.178.0/24 Inc.}
			PTR	`mx0b-00570c01.pphosted.com`
SOA	`ns2.mcmaster.com`hostmaster@mcmaster.com serial=964

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1778455744

Subdomains

dnsep501.mcmastercarrsupplyco.org

Same first word

mcmastercarrsupplyco.co

DNS History

16 records (7 active, 9 former)

●NSns1.mcmaster.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 11:51:20
● 2026-05-10 23:58:04

●NSns2.mcmaster.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 11:51:20
● 2026-05-10 23:58:04

●NSns3.mcmaster.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 11:51:20
● 2026-05-10 23:58:04

●NSns4.mcmaster.com2015-06-01 → 2026-05-10 · 2 obs

● 2015-06-01 11:51:20
● 2026-05-10 23:58:04

●MXmx0a-00570c01.pphosted.com2026-05-10 → 2026-05-10 · 3 obs

○ 2017-04-23 22:52:28
● 2026-05-10 23:58:02
● 2026-05-10 23:58:04

●MXmx0b-00570c01.pphosted.com2026-05-10 → 2026-05-10 · 3 obs

○ 2017-04-23 22:52:28
● 2026-05-10 23:58:02
● 2026-05-10 23:58:04

○MXspmep104.mcmaster.com2015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

○MXspmep105.mcmaster.com2015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

○MXspmep106.mcmaster.com2015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

○MXspmep107.mcmaster.com2015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

○MXspmep504.mcmaster.com2015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

○MXspmep505.mcmaster.com2015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

○MXspmep506.mcmaster.com2015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

○MXspmep507.mcmaster.com2015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

●A209.64.25.1502026-05-10 → 2026-05-10 · 3 obs

○ 2017-04-23 22:52:28
● 2026-05-10 23:58:02
● 2026-05-10 23:58:04

○A209.64.25.2302015-06-01 → 2017-04-23 · 4 obs

● 2015-06-01 11:51:20
● 2017-04-23 22:52:28
○ 2026-05-10 23:58:02
○ 2026-05-10 23:58:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
mcmastercarrsupplyco.org	ns4.mcmaster.com, ns1.mcmaster.com, ns2.mcmaster.com, ns3.mcmaster.com	-

✅ Authoritative Response

Server:12.203.197.21

NS records: ns4.mcmaster.com, ns1.mcmaster.com, ns2.mcmaster.com, ns3.mcmaster.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mcmastercarrsupplyco.org (unsigned zone)

⏱️ Timing

Total: 235ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`209.64.25.150`
NS	4	`ns1.mcmaster.com, ns3.mcmaster.com...`
MX	2	`mx0a-00570c01.pphosted.com (pri: 0), mx0b-00570c01.pphosted.com (pri: 0)`
SOA	1	`ns2.mcmaster.com hostmaster.mcmaster.com`

Analysis

Hierarchy

dnsep501.mcmastercarrsupplyco.org has mcmastercarrsupplyco.org as its parent.

IP Addresses

mcmastercarrsupplyco.org maps to IP address 209.64.25.150.

Other host names, for instance mcmastercarronline.mobi, mcmastercarrplumbing.net, mcmaster.parts, mcm-c.com and mcmastercarr.nl share IP numbers with mcmastercarrsupplyco.org.

Name Servers

mcmastercarrsupplyco.org is delegated to four name servers: ns1.mcmaster.com, ns2.mcmaster.com, ns3.mcmaster.com and ns4.mcmaster.com.

mcmastercarrsupplyco.org at least partially shares name servers with other domains such as metalworking.org, mcmaster-car.com, e-mcmaster.net, mcmastercarr.tools and themcmastercarr.mobi.

Host names with one IP number:

ns1.mcmaster.com points to: 209.64.25.48

ns2.mcmaster.com points to: 12.203.197.20

ns3.mcmaster.com points to: 209.64.25.47

ns4.mcmaster.com points to: 12.203.197.21

Mail Servers

Two mail servers handle mcmastercarrsupplyco.org: mx0a-00570c01.pphosted.com and mx0b-00570c01.pphosted.com.

mcmastercarrsupplyco.org shares the same mail server setup as other domains, including mcmasterfittings.co, mckaster.com, mcmasterfiltering.biz, mcmasteronline.net and mcmastercarrsupply.com.

mcmastercarrsupplyco.org shares some mail servers with other domains, at least partially, for instance tmcmaster.com.

Host names with a single IP address:

mx0a-00570c01.pphosted.com points to 205.220.166.57

mx0b-00570c01.pphosted.com points to 205.220.178.57

mcmastercarrsupplyco.org - robtex.com