pcopen.com - dns.ninja

`pcopen.com`

DNSSEC	⚠️ Not signed
A	192.155.70.104^{🇺🇸 ASN-ALARMCOM192.155.70.0/23 8281 Greensboro Drive. Suite 100 Tysons VA 22102 United States}
NS	`ns-1207.awsdns-22.org` ⭐
		A	2600:9000:5304:b700::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1207.awsdns-22.org`
		A	205.251.196.183^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1207.awsdns-22.org`
NS	`ns-1778.awsdns-30.co.uk`
		A	2600:9000:5306:f200::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1778.awsdns-30.co.uk`
		A	205.251.198.242^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1778.awsdns-30.co.uk`
NS	`ns-375.awsdns-46.com`
		A	2600:9000:5301:7700::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-375.awsdns-46.com`
		A	205.251.193.119^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-375.awsdns-46.com`
NS	`ns-783.awsdns-33.net`
		A	2600:9000:5303:f00::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-783.awsdns-33.net`
		A	205.251.195.15^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-783.awsdns-33.net`
MX	`mx1.hc4949-98.iphmx.com` ⭐
		A	68.232.137.239^{🇺🇸 CISCO-168.232.137.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	68.232.141.253^{🇺🇸 CISCO-168.232.141.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	216.71.141.110^{🇺🇸 CISCO-1216.71.141.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	216.71.144.186^{🇺🇸 CISCO-1216.71.144.0/24 170 West Tasman Drive San Jose CA 95134 United States}
MX	`mx2.hc4949-98.iphmx.com` ⭐
		A	68.232.137.239^{🇺🇸 CISCO-168.232.137.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	68.232.141.253^{🇺🇸 CISCO-168.232.141.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	216.71.141.110^{🇺🇸 CISCO-1216.71.141.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		A	216.71.144.186^{🇺🇸 CISCO-1216.71.144.0/24 170 West Tasman Drive San Jose CA 95134 United States}
TXT	`MS=ms48083104`
TXT	`v=spf1 exists:%{i}._i.%{d}._d.espf.agari-dns.net include:%{d}.8f.spf-protect....`
SOA	`ns-1207.awsdns-22.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=1785436982

Subdomains

core.pcopen.com

Same first word

pcopen.de

pcopen.net

pcopen.com

Similar names

openpc.com

penpoc.com

openpc.ru

conppe.blogspot.com

cenpop.com

cpopen.com

cenppo.com

ncpoep.org

oneppc.com

opencp.com

pepcon.eu

ppecon.com

pepcon.com

ppcone.com

ecoppn.com

openpc.eu

coppen.be

pencop.net

pepcon.org

openpc.org

coppen.com

conpep.com

pepcon.de

coppen.com.br

openpc.es

openpc.net

conpep.de

openpc.co.uk

openpc.cz

neoppc.com

opencp.net

cenopp.com.br

coppen.de

popcen.com

openpc.biz

openpc.de

openpc.it

DNS History

15 records (7 active, 8 former)

○NScore.pcopen.com2009-01-16 → 2009-01-16 · 3 obs

● 2009-01-16 12:10:06
○ 2015-08-30 05:20:16
○ 2026-07-30 19:11:38

●NSns-1207.awsdns-22.org2016-06-15 → 2026-07-30 · 3 obs

○ 2016-03-30 05:18:28
● 2016-06-15 12:02:48
● 2026-07-30 19:11:38

●NSns-1778.awsdns-30.co.uk2016-06-15 → 2026-07-30 · 3 obs

○ 2016-03-30 05:18:28
● 2016-06-15 12:02:48
● 2026-07-30 19:11:38

●NSns-375.awsdns-46.com2016-06-15 → 2026-07-30 · 3 obs

○ 2016-03-30 05:18:28
● 2016-06-15 12:02:48
● 2026-07-30 19:11:38

●NSns-783.awsdns-33.net2016-06-15 → 2026-07-30 · 3 obs

○ 2016-03-30 05:18:28
● 2016-06-15 12:02:48
● 2026-07-30 19:11:38

○NSns1.soadns.com2009-01-16 → 2016-03-30 · 4 obs

● 2009-01-16 12:10:06
● 2016-03-30 05:18:28
○ 2016-06-15 12:02:48
○ 2026-07-30 19:11:38

○NSns2.soadns.com2009-01-16 → 2016-03-30 · 4 obs

● 2009-01-16 12:10:06
● 2016-03-30 05:18:28
○ 2016-06-15 12:02:48
○ 2026-07-30 19:11:38

○MXbarracuda.pco-inc.com2015-08-30 → 2017-06-29 · 5 obs

○ 2009-01-16 12:10:06
● 2015-08-30 05:20:16
● 2017-06-29 22:55:20
○ 2026-03-13 01:17:50
○ 2026-07-30 19:11:38

○MXedd.pcopen.com2009-01-16 → 2009-01-16 · 3 obs

● 2009-01-16 12:10:06
○ 2015-08-30 05:20:16
○ 2026-07-30 19:11:38

●MXmx1.hc4949-98.iphmx.com2026-03-13 → 2026-07-30 · 3 obs

○ 2017-06-29 22:55:20
● 2026-03-13 01:17:50
● 2026-07-30 19:11:38

●MXmx2.hc4949-98.iphmx.com2026-03-13 → 2026-07-30 · 3 obs

○ 2017-06-29 22:55:20
● 2026-03-13 01:17:50
● 2026-07-30 19:11:38

●A192.155.70.1042026-03-13 → 2026-07-30 · 3 obs

○ 2017-06-29 22:55:20
● 2026-03-13 01:17:50
● 2026-07-30 19:11:38

○A64.85.1.322009-01-16 → 2009-01-16 · 3 obs

● 2009-01-16 12:10:06
○ 2015-08-30 05:20:16
○ 2026-07-30 19:11:38

○A67.137.21.1322015-08-30 → 2016-03-30 · 5 obs

○ 2009-01-16 12:10:06
● 2015-08-30 05:20:16
● 2016-03-30 05:18:28
○ 2016-06-15 12:02:48
○ 2026-07-30 19:11:38

○A71.4.36.1322016-06-15 → 2017-06-29 · 5 obs

○ 2016-03-30 05:18:28
● 2016-06-15 12:02:48
● 2017-06-29 22:55:20
○ 2026-03-13 01:17:50
○ 2026-07-30 19:11:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net...	-
pcopen.com	ns-375.awsdns-46.com, ns-783.awsdns-33.net, ns-1778.awsdns-30.co.uk, ns-1207.awsdns-22.org	2 records

✅ Authoritative Response

Server:205.251.195.15

NS records: ns-375.awsdns-46.com, ns-783.awsdns-33.net, ns-1778.awsdns-30.co.uk, ns-1207.awsdns-22.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pcopen.com (unsigned zone)

⏱️ Timing

Total: 715ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.155.70.104`
NS	4	`ns-1207.awsdns-22.org, ns-1778.awsdns-30.co.uk...`
MX	2	`mx1.hc4949-98.iphmx.com (pri: 10), mx2.hc4949-98.iphmx.com (pri: 10)`
TXT	2	`MS=ms48083104, v=spf1 exists:%{i}._i.%{d}._d.espf.agari`
SOA	1	`ns-1207.awsdns-22.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-375.awsdns-46.com, ns-375.awsdns-46.com)

Analysis

Hierarchy

The domain core.pcopen.com falls under the parent pcopen.com.

IP Addresses

pcopen.com has exactly one IP address — 192.155.70.104.

pco-inc.com is an example of another host name that shares IP numbers with pcopen.com.

Name Servers

Four name servers handle the delegation for pcopen.com: ns-375.awsdns-46.com, ns-783.awsdns-33.net, ns-1207.awsdns-22.org and ns-1778.awsdns-30.co.uk.

At least some of pcopen.com's name servers are shared with other domains, for example bubka.jp, kobayakawa-shika.com, epson-kenpo.jp and two more.

Four hostnames, each resolving to a pair of IP addresses: ns-375.awsdns-46.com directs to 205.251.193.119 and 2600:9000:5301:7700::1; ns-783.awsdns-33.net directs to 205.251.195.15 and 2600:9000:5303:f00::1; ns-1207.awsdns-22.org directs to 205.251.196.183 and 2600:9000:5304:b700::1; ns-1778.awsdns-30.co.uk directs to 205.251.198.242 and 2600:9000:5306:f200::1.

Mail Servers

pcopen.com uses two mail servers, mx1.hc4949-98.iphmx.com and mx2.hc4949-98.iphmx.com.

The mail server setup of pcopen.com matches that of other domains such as noonlight.com, alarm.com, active-view.eu and two others.

Both mx1.hc4949-98.iphmx.com and mx2.hc4949-98.iphmx.com resolve to four IP addresses: mx1.hc4949-98.iphmx.com points to 68.232.137.239, 68.232.141.253, 216.71.141.110 and 216.71.144.186 while mx2.hc4949-98.iphmx.com resolves to 68.232.137.239, 68.232.141.253, 216.71.141.110 and 216.71.144.186.

The host names mx1.hc4949-98.iphmx.com and mx2.hc4949-98.iphmx.com both resolve to 68.232.137.239 IP addresses.

The host names mx1.hc4949-98.iphmx.com and mx2.hc4949-98.iphmx.com both resolve to 68.232.141.253 IP addresses.

The host names mx1.hc4949-98.iphmx.com and mx2.hc4949-98.iphmx.com both resolve to 216.71.141.110 IP addresses.

The host names mx1.hc4949-98.iphmx.com and mx2.hc4949-98.iphmx.com both resolve to 216.71.144.186 IP addresses.