`certn.org`

DNSSEC	⚠️ Not signed
A	103.169.142.0^{🇦🇺 CLOUDFLARESPECTRUM103.169.142.0/24 Canva Pty Ltd 110 Kippax Street}
NS	`dns1.p01.nsone.net` ⭐
		A	2620:4d:4000:6259:7:1:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p01.nsone.net`
		A	198.51.44.1^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
NS	`dns1.p08.nsone.net`
		A	2620:4d:4000:6259:7:8:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`ns8.demysdns.com`
			PTR	`dns1.p08.nsone.net`
		A	198.51.44.8^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`ns8.demysdns.com`
			PTR	`dns1.p08.nsone.net`
NS	`dns2.p08.nsone.net`
		A	2a00:edc0:6259:7:8::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p08.nsone.net`
		A	198.51.45.8^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p08.nsone.net`
NS	`dns3.p08.nsone.net`
		A	2620:4d:4000:6259:7:8:0:3^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns3.p08.nsone.net`
		A	198.51.44.72^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns3.p08.nsone.net`
NS	`dns4.p08.nsone.net`
		A	2a00:edc0:6259:7:8::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p08.nsone.net`
		A	198.51.45.72^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns4.p08.nsone.net`
NS	`ns01.squarespacedns.com`
		A	45.54.22.1^{🇺🇸 NETACTUATE45.54.22.0/24}
NS	`ns02.squarespacedns.com`
		A	45.54.22.65^{🇺🇸 NETACTUATE45.54.22.0/24}
NS	`ns03.squarespacedns.com`
		A	45.54.22.129^{🇺🇸 NETACTUATE45.54.22.0/24}
NS	`ns04.squarespacedns.com`
		A	45.54.22.193^{🇺🇸 NETACTUATE45.54.22.0/24}
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c06::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f26.1e100.net`
		A	2607:f8b0:4004:c06::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f27.1e100.net`
		A	2607:f8b0:4004:c07::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f26.1e100.net`
		A	2607:f8b0:4004:c07::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f27.1e100.net`
		A	172.253.62.26^{🇺🇸 Google172.253.62.0/24}
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
		A	172.253.115.26^{🇺🇸 Google172.253.115.0/24}
		A	172.253.115.27^{🇺🇸 Google172.253.115.0/24}
		A	172.253.122.26^{🇺🇸 Google172.253.122.0/24}
TXT	`google-site-verification=Up5cs5SkjzYd81w4ZTIHJbNk3EAUTbmyw3Tjt6_0AYA`
TXT	`google-site-verification=ri7mk7CHmKmGSLwjSe0w4SYCVkOno_8NqcNxSEPtu8M`
SOA	`dns1.p01.nsone.net`hostmaster@nsone.net serial=1712581291

`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=1784694570

Same first word

certn.ru

certn.cn

certn.global

certn.co

certn.org

certn.co.uk

certn.com

certn.net

Similar names

rntec.com

enctr.gg

trenc.net

tnerc.gov.in

crnet.com.br

tcren.cc

crent.com

rcnet.com

crnet.in

netrc.com

nectr.au

rcnet.net

ncert.gov.ph

trnce.com

rcent.com

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centr.ing

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crnet.com

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ntcer.com

nectr.net.au

centr.ru

centr.com

centr.online

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nrtec.com.mx

crnet.eu

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cetrn.cn

centr.me

centr.expert

centr.cz

cnetr.com

netrc.xyz

crent.de

crnet.cz

centr.de

nrtec.ru

centr.by

renct.com

crent.info

nertc.org

rcent.ru

crnet.net

centr.news

crnet.org

tncre.net

rcten.com

nctre.com

centr.lviv.ua

centr.al

centr.com.ua

crent.sk

nectr.energy

nectr.com.au

ncert.nic.in

crent.ca

tecnr.ru

netcr.co.jp

centr.parts

ncert.in

netrc.net

crnet.es

centr.education

tcren.com.cn

cnter.com

rntec.net

ncert.online

crnet.com.mx

centr.biz

tcren.com

centr.cn

crnet.ru

rcnet.cz

crnet.homeip.net

nrtec.in

ncert.co.in

centr.today

rcnet.be

netcr.com

nrtce.com

netrc.vip

cntre.com

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centr.org.ua

centr.in.ua

centr.su

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DNS History

16 records (11 active, 5 former)

●NSdns1.p01.nsone.net2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

●NSdns1.p08.nsone.net2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

●NSdns2.p08.nsone.net2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

●NSdns3.p08.nsone.net2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

●NSdns4.p08.nsone.net2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

●NSns01.squarespacedns.com2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

●NSns02.squarespacedns.com2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

●NSns03.squarespacedns.com2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

●NSns04.squarespacedns.com2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

○NSns63.domaincontrol.com2015-08-16 → 2016-07-08 · 4 obs

● 2015-08-16 15:39:40
● 2016-07-08 18:50:20
○ 2017-03-24 09:54:44
○ 2026-07-22 05:02:00

○NSns64.domaincontrol.com2015-08-16 → 2016-07-08 · 4 obs

● 2015-08-16 15:39:40
● 2016-07-08 18:50:20
○ 2017-03-24 09:54:44
○ 2026-07-22 05:02:00

○MXmailstore1.secureserver.net2015-08-16 → 2016-07-08 · 4 obs

● 2015-08-16 15:39:40
● 2016-07-08 18:50:20
○ 2017-03-24 09:54:44
○ 2026-07-22 05:02:00

●MXsmtp.google.com2026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

○MXsmtp.secureserver.net2015-08-16 → 2016-07-08 · 4 obs

● 2015-08-16 15:39:40
● 2016-07-08 18:50:20
○ 2017-03-24 09:54:44
○ 2026-07-22 05:02:00

●A103.169.142.02026-06-16 → 2026-07-22 · 3 obs

○ 2017-03-24 09:54:44
● 2026-06-16 01:30:00
● 2026-07-22 05:02:00

○A50.63.202.192015-08-16 → 2016-07-08 · 4 obs

● 2015-08-16 15:39:40
● 2016-07-08 18:50:20
○ 2017-03-24 09:54:44
○ 2026-07-22 05:02:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	d0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org	-
certn.org	dns4.p08.nsone.net, ns02.squarespacedns.com, ns04.squarespacedns.com, dns1.p08.nsone.net...	-

✅ Authoritative Response

Server:45.54.22.65

NS records: dns4.p08.nsone.net, ns02.squarespacedns.com, ns04.squarespacedns.com, dns1.p08.nsone.net, dns3.p08.nsone.net, ns01.squarespacedns.com, dns2.p08.nsone.net, ns03.squarespacedns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certn.org (unsigned zone)

⏱️ Timing

Total: 590ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.169.142.0`
NS	8	`dns1.p08.nsone.net, dns2.p08.nsone.net...`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=Up5cs5SkjzYd81w, google-site-verification=ri7mk7CHmKmGSLw`
SOA	1	`dns1.p01.nsone.net hostmaster.nsone.net`

Analysis

IP Addresses

certn.org points to a single IP number: 103.169.142.0.

Additional host names — medconnect.ca, aleydani.com, bavanti.com and two others — share IP numbers with certn.org.

Name Servers

certn.org is delegated to 9 name servers: ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com and 6 other.

At least some of certn.org's name servers are shared with other domains, for example antakar.com, heartrecovery.com, thiagosil.com and two more.

These name servers tend to co-occur with ns04.squarespacedns.com, dns1.p08.nsone.net, dns2.p08.nsone.net and 7 other name servers in the same DNS delegations.

Host names with two IP numbers:

dns1.p01.nsone.net points to 198.51.44.1 and 2620:4d:4000:6259:7:1:0:1.

dns1.p08.nsone.net points to 198.51.44.8 and 2620:4d:4000:6259:7:8:0:1.

dns2.p08.nsone.net points to 198.51.45.8 and 2a00:edc0:6259:7:8::2.

dns3.p08.nsone.net points to 198.51.44.72 and 2620:4d:4000:6259:7:8:0:3.

dns4.p08.nsone.net points to 198.51.45.72 and 2a00:edc0:6259:7:8::4.

Host names pointing to a single IP address:

ns01.squarespacedns.com points to 45.54.22.1.

ns02.squarespacedns.com points to 45.54.22.65.

ns03.squarespacedns.com points to 45.54.22.129.

ns04.squarespacedns.com points to 45.54.22.193.