`j.co`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns5.afternic.com` ⭐
		A	2603:5:2134::42^{🇺🇸 GODADDY-DNS2603:5:2130::/44}
			PTR	`ns5.afternic.com`
		A	97.74.99.66^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns5.afternic.com`
NS	`ns6.afternic.com`
		A	2603:5:2234::42^{🇺🇸 GODADDY-DNS2603:5:2230::/44}
			PTR	`ns6.afternic.com`
		A	173.201.67.66^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns6.afternic.com`
TXT	`v=spf1 -all`
SOA	`ns5.afternic.com`dns@jomax.net 2025-09-30 #0

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759710527

Same first word

j.studio

j.cz

j.blogspot.com

j.gd.cn

j.pn

j.vg

j.net.pl

j.ventures

j.co.nz

j.je

j.estate

j.fo

j.org.cn

j.cr

j.gd

j.show

j.sh

j.de

j.co.kr

j.com.ua

j.asia

j.org.nz

j.fi

j.sn.cn

j.ms

j.fm

j.ai

j.zip

j.ro

j.pe

j.st

j.co

j.box

j.vu

j.com.ph

j.team

j.ua

j.biz

j.mu

j.md

j.aivencloud.com

j.doctor

j.nx.cn

j.org.ee

j.sh.cn

j.ln.cn

j.ac

j.kiev.ua

j.domains

j.tips

j.pl

j.dk

j.tm

j.fr

j.am

j.co.uk

j.kz

j.dating

j.ls

j.tv

j.company

j.akamaiedge.net

j.net.cn

j.gives

j.com.pl

j.cx

j.cc

j.is

j.gs

j.bz

j.tools

j.gs.cn

j.im

j.et

j.mw

j.akamaiedge-staging.net

j.codes

j.kg

j.mp

j.se

j.tl

j.cn

DNS History

30 records (4 active, 26 former)

○NSns1.namefind.com2017-01-05 → 2017-08-17 · 4 obs

● 2017-01-05 20:31:08
● 2017-08-17 20:36:26
○ 2026-07-17 15:48:10
○ 2026-07-20 05:58:40

○NSns2.namefind.com2017-08-17 → 2017-08-17 · 4 obs

○ 2017-01-05 20:31:08
● 2017-08-17 20:36:26
○ 2026-07-17 15:48:10
○ 2026-07-20 05:58:40

●NSns5.afternic.com2026-07-17 → 2026-07-20 · 3 obs

○ 2017-08-17 20:36:26
● 2026-07-17 15:48:10
● 2026-07-20 05:58:40

●NSns6.afternic.com2026-07-17 → 2026-07-20 · 3 obs

○ 2017-08-17 20:36:26
● 2026-07-17 15:48:10
● 2026-07-20 05:58:40

○A107.21.16.2312015-08-31 → 2015-10-04 · 4 obs

● 2015-08-31 17:04:52
● 2015-10-04 13:25:06
○ 2015-10-28 19:48:18
○ 2026-07-20 05:58:40

○A107.23.111.882015-10-28 → 2015-11-01 · 5 obs

○ 2015-10-04 13:25:06
● 2015-10-28 19:48:18
● 2015-11-01 03:07:52
○ 2015-11-22 13:24:30
○ 2026-07-20 05:58:40

●A13.248.169.482026-07-17 → 2026-07-20 · 3 obs

○ 2017-08-17 20:36:26
● 2026-07-17 15:48:10
● 2026-07-20 05:58:40

○A208.73.211.702017-01-05 → 2017-08-17 · 5 obs

○ 2016-12-26 00:00:08
● 2017-01-05 20:31:08
● 2017-08-17 20:36:26
○ 2026-07-17 15:48:10
○ 2026-07-20 05:58:40

○A52.2.25.582016-01-17 → 2016-02-03 · 5 obs

○ 2016-01-11 05:57:14
● 2016-01-17 20:27:54
● 2016-02-03 06:35:52
○ 2016-02-10 17:39:24
○ 2026-07-20 05:58:40

○A52.200.28.1662016-05-27 → 2016-12-26 · 5 obs

○ 2016-04-08 04:19:00
● 2016-05-27 13:40:18
● 2016-12-26 00:00:08
○ 2017-01-05 20:31:08
○ 2026-07-20 05:58:40

○A52.21.108.362016-04-08 → 2016-04-08 · 4 obs

○ 2016-03-12 17:19:12
● 2016-04-08 04:19:00
○ 2016-05-27 13:40:18
○ 2026-07-20 05:58:40

○A52.21.89.1602016-05-27 → 2016-12-26 · 5 obs

○ 2016-04-08 04:19:00
● 2016-05-27 13:40:18
● 2016-12-26 00:00:08
○ 2017-01-05 20:31:08
○ 2026-07-20 05:58:40

○A52.22.143.1012015-11-22 → 2015-11-22 · 4 obs

○ 2015-11-01 03:07:52
● 2015-11-22 13:24:30
○ 2016-01-03 22:43:02
○ 2026-07-20 05:58:40

○A52.22.244.2382016-01-17 → 2016-02-03 · 5 obs

○ 2016-01-11 05:57:14
● 2016-01-17 20:27:54
● 2016-02-03 06:35:52
○ 2016-02-10 17:39:24
○ 2026-07-20 05:58:40

○A52.4.241.1192016-03-02 → 2016-03-12 · 5 obs

○ 2016-02-18 23:57:00
● 2016-03-02 01:27:20
● 2016-03-12 17:19:12
○ 2016-04-08 04:19:00
○ 2026-07-20 05:58:40

○A52.7.163.412015-10-28 → 2015-11-01 · 5 obs

○ 2015-10-04 13:25:06
● 2015-10-28 19:48:18
● 2015-11-01 03:07:52
○ 2015-11-22 13:24:30
○ 2026-07-20 05:58:40

○A54.152.163.1842016-12-06 → 2016-12-26 · 5 obs

○ 2016-05-27 13:40:18
● 2016-12-06 16:39:06
● 2016-12-26 00:00:08
○ 2017-01-05 20:31:08
○ 2026-07-20 05:58:40

○A54.164.248.182016-02-10 → 2016-02-18 · 5 obs

○ 2016-02-03 06:35:52
● 2016-02-10 17:39:24
● 2016-02-18 23:57:00
○ 2016-03-02 01:27:20
○ 2026-07-20 05:58:40

○A54.172.149.512015-08-31 → 2015-10-04 · 4 obs

● 2015-08-31 17:04:52
● 2015-10-04 13:25:06
○ 2015-10-28 19:48:18
○ 2026-07-20 05:58:40

○A54.175.223.262016-02-10 → 2016-02-18 · 5 obs

○ 2016-02-03 06:35:52
● 2016-02-10 17:39:24
● 2016-02-18 23:57:00
○ 2016-03-02 01:27:20
○ 2026-07-20 05:58:40

○A54.210.209.2552016-03-02 → 2016-03-12 · 5 obs

○ 2016-02-18 23:57:00
● 2016-03-02 01:27:20
● 2016-03-12 17:19:12
○ 2016-04-08 04:19:00
○ 2026-07-20 05:58:40

○A54.210.219.2262015-11-22 → 2015-11-22 · 4 obs

○ 2015-11-01 03:07:52
● 2015-11-22 13:24:30
○ 2016-01-03 22:43:02
○ 2026-07-20 05:58:40

○A54.85.109.1412016-01-03 → 2016-01-11 · 5 obs

○ 2015-11-22 13:24:30
● 2016-01-03 22:43:02
● 2016-01-11 05:57:14
○ 2016-01-17 20:27:54
○ 2026-07-20 05:58:40

○A54.86.222.2442016-04-08 → 2016-04-08 · 4 obs

○ 2016-03-12 17:19:12
● 2016-04-08 04:19:00
○ 2016-05-27 13:40:18
○ 2026-07-20 05:58:40

○A54.86.91.2252016-01-03 → 2016-01-11 · 5 obs

○ 2015-11-22 13:24:30
● 2016-01-03 22:43:02
● 2016-01-11 05:57:14
○ 2016-01-17 20:27:54
○ 2026-07-20 05:58:40

●A76.223.54.1462026-07-17 → 2026-07-20 · 3 obs

○ 2017-08-17 20:36:26
● 2026-07-17 15:48:10
● 2026-07-20 05:58:40

○CNAMEpr-co-premiums.go.co2016-05-27 → 2016-12-26 · 5 obs

○ 2016-04-08 04:19:00
● 2016-05-27 13:40:18
● 2016-12-26 00:00:08
○ 2017-01-05 20:31:08
○ 2026-07-20 05:58:40

○CNAMEpr-co-premiums.neuweb.biz2015-08-31 → 2016-04-08 · 4 obs

● 2015-08-31 17:04:52
● 2016-04-08 04:19:00
○ 2016-05-27 13:40:18
○ 2026-07-20 05:58:40

○CNAMEreg-pr-web-premiums-go-co-719076926.us-east-1.elb.amazonaws.com2016-05-27 → 2016-12-26 · 5 obs

○ 2016-04-08 04:19:00
● 2016-05-27 13:40:18
● 2016-12-26 00:00:08
○ 2017-01-05 20:31:08
○ 2026-07-20 05:58:40

○CNAMEws-pr-web-premiumpages-942494887.us-east-1.elb.amazonaws.com2015-09-05 → 2016-04-08 · 5 obs

○ 2015-08-31 17:04:52
● 2015-09-05 04:03:28
● 2016-04-08 04:19:00
○ 2016-05-27 13:40:18
○ 2026-07-20 05:58:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
j.co	ns5.afternic.com, ns6.afternic.com	-

✅ Authoritative Response

Server:97.74.99.66

NS records: ns5.afternic.com, ns6.afternic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for j.co (unsigned zone)

⏱️ Timing

Total: 361ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.169.48, 76.223.54.146`
NS	2	`ns5.afternic.com, ns6.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns5.afternic.com dns.jomax.net`

Analysis

IP Addresses

j.co points to the IP addresses 13.248.169.48 and 76.223.54.146

Additional host names — secondhandfirstchoice.com, qryt.com, abem.net and two others — share IP numbers with j.co.

Name Servers

j.co is served by two delegated name servers, ns5.afternic.com and ns6.afternic.com.

j.co shares its name server setup with other domains, including nullmx.masertech.com, www.nimaan.com, zakapp.com and two others.

At least some of j.co's name servers are shared with other domains, for example multisigrk.xyz, zenportal.xyz, sellersnews.xyz and two more.

These name servers tend to be deployed in combination with the name servers verification-gakbzzzqmt6gkcplw4efpp.ns101.verify.hn and verification-mdzaaqbc9wh5xb8j4cudbd.ns101.verify.hn.

Each of the two host names carries two IP addresses: ns5.afternic.com points to 97.74.99.66 and 2603:5:2134::42, and ns6.afternic.com points to 173.201.67.66 and 2603:5:2234::42.

j.co - robtex.com

j.co

co

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`j.co`

`co`