`pkaufmann.com`

DNSSEC	⚠️ Not signed
A	63.141.128.8^{🇺🇸 AS39956663.141.128.0/24 BigCommerce 11305 Four Points Drive Building II, Suite 300 Austin TX 78726 United States}
NS	`auth1.dns.cogentco.com` ⭐
		A	2001:550:1:a::d^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`auth1.dns.cogentco.com`
		A	66.28.0.14^{🇺🇸 COGENT66.28.0.0/16 Cogent}
			PTR	`auth1.dns.cogentco.com`
NS	`auth2.dns.cogentco.com`
		A	2001:550:1:b::d^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`auth2.dns.cogentco.com`
		A	66.28.0.30^{🇺🇸 COGENT66.28.0.0/16 Cogent}
			PTR	`auth2.dns.cogentco.com`
MX	`mx1-us1.ppe-hosted.com` ⭐
		A	67.231.154.162^{🇺🇸 Proofpoint67.231.154.0/24 Inc.}
			PTR	`mx1-us1.ppe-hosted.com`
		A	148.163.129.50^{🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc.}
			PTR	`mx1-us1.ppe-hosted.com`
MX	`mx2-us1.ppe-hosted.com`⁽⁷⁾
		A	67.231.154.163^{🇺🇸 Proofpoint67.231.154.0/24 Inc.}
			PTR	`mx2-us1.ppe-hosted.com`
		A	148.163.129.51^{🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc.}
			PTR	`mx2-us1.ppe-hosted.com`
MX	`pkaufmann-com.mail.protection.outlook.com`⁽¹⁰⁾
		A	2a01:111:f403:c946::5^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch4pr21cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::7^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00307.inbound.protection.outlook.com`
		A	2a01:111:f403:f909::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr04cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f90d::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr0501cu00301.inbound.protection.outlook.com`
		A	52.101.40.1^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy4pr03cu00101.inbound.protection.outlook.com`
		A	52.101.41.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00305.inbound.protection.outlook.com`
		A	52.101.50.7^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr21cu00207.inbound.protection.outlook.com`
		A	52.101.194.12^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch0pr04cu00504.inbound.protection.outlook.com`
TXT	`MS=067E2D9EFAB3857AD8386897E6CB892ABA49DE7A`
TXT	`zoho-verification=zb15192775.zmverify.zoho.com`
TXT	`ppe-683ec65f0413ae8b8bc3f6fdb149463c320c57b6`
TXT	`iContact318360`
TXT	`MS=ms47462177`
TXT	`5c5hh0sjgr439jd54n1gzwhf31qfs51p`
TXT	`v=spf1 a mx ip4:38.117.139.112/28 include:spf.protection.outlook.com include...`
SOA	`auth1.dns.cogentco.com`dns@cogentco.com 2025-09-09 #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=1771291435

Subdomains

mail.pkaufmann.com

www.pkaufmann.com

reps.pkaufmann.com

edocs.pkaufmann.com

customers.pkaufmann.com

Same first word

pkaufmann.com

pkaufmann.ch

DNS History

14 records (6 active, 8 former)

●NSauth1.dns.cogentco.com2015-08-24 → 2026-03-17 · 2 obs

● 2015-08-24 19:16:08
● 2026-03-17 23:43:58

●NSauth2.dns.cogentco.com2015-08-24 → 2026-03-17 · 2 obs

● 2015-08-24 19:16:08
● 2026-03-17 23:43:58

○NSauth4.dns.cogentco.com2015-08-24 → 2018-09-20 · 4 obs

● 2015-08-24 19:16:08
● 2018-09-20 18:16:00
○ 2026-03-09 14:59:36
○ 2026-03-17 23:43:58

○NSauth5.dns.cogentco.com2015-08-24 → 2018-09-20 · 4 obs

● 2015-08-24 19:16:08
● 2018-09-20 18:16:00
○ 2026-03-09 14:59:36
○ 2026-03-17 23:43:58

○MXbackupmx1.mail.cogentco.com2015-08-24 → 2018-09-20 · 6 obs

● 2015-08-24 19:16:08
○ 2015-09-08 13:27:42
● 2015-12-06 14:46:50
● 2018-09-20 18:16:00
○ 2026-03-09 14:59:36
○ 2026-03-17 23:43:58

○MXbackupmx2.mail.cogentco.com2015-08-24 → 2018-09-20 · 6 obs

● 2015-08-24 19:16:08
○ 2015-09-08 13:27:42
● 2015-12-06 14:46:50
● 2018-09-20 18:16:00
○ 2026-03-09 14:59:36
○ 2026-03-17 23:43:58

○MXd144305a.ess.barracudanetworks.com2018-05-01 → 2018-09-20 · 5 obs

○ 2015-12-06 14:46:50
● 2018-05-01 07:14:18
● 2018-09-20 18:16:00
○ 2026-03-09 14:59:36
○ 2026-03-17 23:43:58

○MXd144305b.ess.barracudanetworks.com2018-05-01 → 2018-09-20 · 5 obs

○ 2015-12-06 14:46:50
● 2018-05-01 07:14:18
● 2018-09-20 18:16:00
○ 2026-03-09 14:59:36
○ 2026-03-17 23:43:58

○MXemail.pkaufmann.com2015-08-24 → 2018-09-20 · 4 obs

● 2015-08-24 19:16:08
● 2018-09-20 18:16:00
○ 2026-03-09 14:59:36
○ 2026-03-17 23:43:58

○MXmail.pkaufmann.com2015-08-24 → 2018-09-20 · 4 obs

● 2015-08-24 19:16:08
● 2018-09-20 18:16:00
○ 2026-03-09 14:59:36
○ 2026-03-17 23:43:58

●MXmx1-us1.ppe-hosted.com2026-03-09 → 2026-03-17 · 3 obs

○ 2018-09-20 18:16:00
● 2026-03-09 14:59:36
● 2026-03-17 23:43:58

●MXmx2-us1.ppe-hosted.com2026-03-09 → 2026-03-17 · 3 obs

○ 2018-09-20 18:16:00
● 2026-03-09 14:59:36
● 2026-03-17 23:43:58

●MXpkaufmann-com.mail.protection.outlook.com2026-03-09 → 2026-03-17 · 3 obs

○ 2018-09-20 18:16:00
● 2026-03-09 14:59:36
● 2026-03-17 23:43:58

●A63.141.128.82026-03-09 → 2026-03-17 · 2 obs

● 2026-03-09 14:59:36
● 2026-03-17 23:43:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
pkaufmann.com	auth1.dns.cogentco.com, auth2.dns.cogentco.com	3 records

✅ Authoritative Response

Server: 66.28.0.14

NS records: auth1.dns.cogentco.com, auth2.dns.cogentco.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pkaufmann.com (unsigned zone)

⏱️ Timing

Total: 322ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`63.141.128.8`
NS	2	`auth2.dns.cogentco.com, auth1.dns.cogentco.com`
MX	3	`pkaufmann-com.mail.protection.outlook.co, mx1-us1.ppe-hosted.com (pri: 5)...`
TXT	7	`ppe-683ec65f0413ae8b8bc3f6fdb149463c320c, 5c5hh0sjgr439jd54n1gzwhf31qfs51p...`
SOA	1	`auth1.dns.cogentco.com dns.cogentco.com`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (auth1.dns.cogentco.com, auth1.dns.cogentco.com, auth2.dns.cogentco.com)

Analysis

Hierarchy

pkaufmann.com is a parent of mail.pkaufmann.com, www.pkaufmann.com, reps.pkaufmann.com, edocs.pkaufmann.com and customers.pkaufmann.com.

IP Addresses

pkaufmann.com resolves to a single IP: 63.141.128.8.

Other host names, for instance perennialco.com, copcoinc.com, doodlecatsshop.co.uk, greatarrivals.com and palmbeachjewelry.com share IP numbers with pkaufmann.com.

Name Servers

pkaufmann.com has two name servers: auth1.dns.cogentco.com and auth2.dns.cogentco.com.

pkaufmann.com shares the same name server setup as other domains, for example 85.118.38.in-addr.arpa, 163.98.38.in-addr.arpa, rslmgmt.com, 93.175.63.in-addr.arpa and 248.124.38.in-addr.arpa.

pkaufmann.com shares some name servers with other domains, for example 19.40.206.in-addr.arpa, 59.128.in-addr.arpa, visiconn.net, 128.218.38.in-addr.arpa and 220.56.185.in-addr.arpa.

These name servers are commonly used with the name servers nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, shadowcat-i.ups.com and auth4.dns.cogentco.com.

Host names with two IP numbers:

auth1.dns.cogentco.com points to: 2001:550:1:a::d and 66.28.0.14; auth2.dns.cogentco.com points to: 2001:550:1:b::d and 66.28.0.30.

Mail Servers

pkaufmann.com is handled by three mail servers: mx1-us1.ppe-hosted.com, mx2-us1.ppe-hosted.com and pkaufmann-com.mail.protection.outlook.com.

pkaufmann.com shares some mail servers with other domains, at least partially; for instance nancyfarhas.com, acvci.com, threebirdssystems.com, kama-immigration.com and allworks.net.

Host names with eight IP numbers:

pkaufmann-com.mail.protection.outlook.com points to 2a01:111:f403:c946::5, 2a01:111:f403:c946::7, 2a01:111:f403:f909::, 2a01:111:f403:f90d::1, 52.101.40.1, 52.101.41.21, 52.101.50.7 and 52.101.194.12.

Host names with two IP numbers:

mx1-us1.ppe-hosted.com points to 67.231.154.162 and 148.163.129.50.

mx2-us1.ppe-hosted.com points to 67.231.154.163 and 148.163.129.51.

pkaufmann.com - robtex.com

pkaufmann.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`pkaufmann.com`

`com`