`pcuonline.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:16ac^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3030::ac43:cdf3^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.22.172^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.205.243^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlan.ns.cloudflare.com`
		A	108.162.195.250^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	162.159.44.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	172.64.35.250^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
NS	`ingrid.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ingrid.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ingrid.ns.cloudflare.com`
		A	108.162.192.165^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	172.64.32.165^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	173.245.58.165^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.22.172, 172.67.205.243
		IPv6 hints	2606:4700:3030::6815:16ac, 2606:4700:3030::ac43:cdf3
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=185, name=cloudflare-ech.com
SOA	`harlan.ns.cloudflare.com`dns@cloudflare.com serial=2399758977

`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=1776052019

WOT: SAFE (74/100)

Previously MX for

pcuonline.org

Same first word

pcuonline.com

pcuonline.org

Similar names

onlineupc.com

cpuonline.de

puconline.email

upconline.com

cpuonline.com

onlinecup.de

cuponline.nu

puconline.org

puconline.com

onlinecpu.com

puconline.net

cuponline.se

DNS History

23 records (6 active, 17 former)

●NSharlan.ns.cloudflare.com2026-04-10 → 2026-04-13 · 3 obs

○ 2020-01-31 20:43:04
● 2026-04-10 23:02:18
● 2026-04-13 04:19:08

●NSingrid.ns.cloudflare.com2026-04-10 → 2026-04-13 · 3 obs

○ 2020-01-31 20:43:04
● 2026-04-10 23:02:18
● 2026-04-13 04:19:08

○NSns1.namebrightdns.com2020-01-31 → 2020-01-31 · 4 obs

○ 2017-02-11 08:39:14
● 2020-01-31 20:43:04
○ 2026-04-10 23:02:18
○ 2026-04-13 04:19:08

○NSns1.sedoparking.com2015-05-14 → 2015-05-14 · 3 obs

● 2015-05-14 18:00:14
○ 2015-10-14 02:37:08
○ 2026-04-13 04:19:08

○NSns2.namebrightdns.com2020-01-31 → 2020-01-31 · 4 obs

○ 2017-02-11 08:39:14
● 2020-01-31 20:43:04
○ 2026-04-10 23:02:18
○ 2026-04-13 04:19:08

○NSns2.sedoparking.com2015-05-14 → 2015-05-14 · 3 obs

● 2015-05-14 18:00:14
○ 2015-10-14 02:37:08
○ 2026-04-13 04:19:08

○NSns2121.ethpeer.com2017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-11 04:55:38
● 2017-02-11 08:39:14
○ 2020-01-31 20:43:04
○ 2026-04-13 04:19:08

○NSns2122.ethpeer.com2017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-11 04:55:38
● 2017-02-11 08:39:14
○ 2020-01-31 20:43:04
○ 2026-04-13 04:19:08

○NSns8275.hostgator.com2015-10-14 → 2016-07-11 · 5 obs

○ 2015-05-14 18:00:14
● 2015-10-14 02:37:08
● 2016-07-11 04:55:38
○ 2017-02-11 08:39:14
○ 2026-04-13 04:19:08

○NSns8276.hostgator.com2015-10-14 → 2016-07-11 · 5 obs

○ 2015-05-14 18:00:14
● 2015-10-14 02:37:08
● 2016-07-11 04:55:38
○ 2017-02-11 08:39:14
○ 2026-04-13 04:19:08

○MXmail.nickstel.com2015-05-14 → 2015-05-14 · 3 obs

● 2015-05-14 18:00:14
○ 2015-10-14 02:37:08
○ 2026-04-13 04:19:08

○MXmail1.namebrightmail.com2020-01-31 → 2020-01-31 · 4 obs

○ 2017-02-11 08:39:14
● 2020-01-31 20:43:04
○ 2026-04-10 23:02:18
○ 2026-04-13 04:19:08

○MXmail2.namebrightmail.com2020-01-31 → 2020-01-31 · 4 obs

○ 2017-02-11 08:39:14
● 2020-01-31 20:43:04
○ 2026-04-10 23:02:18
○ 2026-04-13 04:19:08

○MXpcuonline.org2015-10-14 → 2017-02-11 · 5 obs

○ 2015-05-14 18:00:14
● 2015-10-14 02:37:08
● 2017-02-11 08:39:14
○ 2020-01-31 20:43:04
○ 2026-04-13 04:19:08

●A104.21.22.1722026-04-10 → 2026-04-13 · 3 obs

○ 2020-01-31 20:43:04
● 2026-04-10 23:02:18
● 2026-04-13 04:19:08

●A172.67.205.2432026-04-10 → 2026-04-13 · 3 obs

○ 2020-01-31 20:43:04
● 2026-04-10 23:02:18
● 2026-04-13 04:19:08

○A192.185.4.1502017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-11 04:55:38
● 2017-02-11 08:39:14
○ 2020-01-31 20:43:04
○ 2026-04-13 04:19:08

○A192.185.52.1012015-10-14 → 2016-07-11 · 5 obs

○ 2015-05-14 18:00:14
● 2015-10-14 02:37:08
● 2016-07-11 04:55:38
○ 2017-02-11 08:39:14
○ 2026-04-13 04:19:08

●A2606:4700:3030::6815:16ac2026-04-10 → 2026-04-13 · 3 obs

○ 2020-01-31 20:43:04
● 2026-04-10 23:02:18
● 2026-04-13 04:19:08

●A2606:4700:3030::ac43:cdf32026-04-10 → 2026-04-13 · 3 obs

○ 2020-01-31 20:43:04
● 2026-04-10 23:02:18
● 2026-04-13 04:19:08

○A67.228.76.242017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-11 04:55:38
● 2017-02-11 08:39:14
○ 2026-04-10 23:02:18
○ 2026-04-13 04:19:08

○A72.52.4.912015-05-14 → 2015-05-14 · 3 obs

● 2015-05-14 18:00:14
○ 2015-10-14 02:37:08
○ 2026-04-13 04:19:08

○CNAMEcomingsoon.namebright.com2020-01-31 → 2020-01-31 · 3 obs

● 2020-01-31 20:43:04
○ 2026-04-10 23:02:18
○ 2026-04-13 04:19:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
pcuonline.org	ingrid.ns.cloudflare.com, harlan.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.165

NS records: ingrid.ns.cloudflare.com, harlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pcuonline.org (unsigned zone)

⏱️ Timing

Total: 403ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.22.172, 172.67.205.243`
AAAA	2	`2606:4700:3030::6815:16ac, 2606:4700:3030::ac43:cdf3`
NS	2	`harlan.ns.cloudflare.com, ingrid.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harlan.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

pcuonline.org maps to four IP numbers: 2606:4700:3030::6815:16ac, 2606:4700:3030::ac43:cdf3, 104.21.22.172 and 172.67.205.243.

other host names include isvgfl.ttxiu.life, kazantransport.ru, ton.is, aqualine.dk and thiruvambadynews.com; they share IP numbers with pcuonline.org.

Name Servers

Two name servers harlan.ns.cloudflare.com and ingrid.ns.cloudflare.com handle the delegation for pcuonline.org.

pcuonline.org shares the same name server setup as other domains, for instance petsbynumbers.com, philiplane.org, flavorhouse.com.br, jeremybuckingham.org and cte.co.id.

pcuonline.org at least partially shares name servers with other domains, for instance clicmenu.app, extremedialogue.com, etossdubbi.pro, tinypic.ru and smartdreamzzz.com.

These name servers are commonly used with nena.ns.cloudflare.com and zod.ns.cloudflare.com.

Six IP addresses per host:

harlan.ns.cloudflare.com points to 2606:4700:58::a29f:2cfa, 2803:f800:50::6ca2:c3fa, 2a06:98c1:50::ac40:23fa, 108.162.195.250, 162.159.44.250 and 172.64.35.250; ingrid.ns.cloudflare.com points to 2606:4700:50::adf5:3aa5, 2803:f800:50::6ca2:c0a5, 2a06:98c1:50::ac40:20a5, 108.162.192.165, 172.64.32.165 and 173.245.58.165

pcuonline.org - robtex.com

pcuonline.org

org

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`pcuonline.org`

`org`