`twdu.co`

DNSSEC	⚠️ Not signed
A	2600:1f18:297:ba0e:7900:f622:48a8:f266^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:297:ba18:6ddc:5d8f:6053:f003^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:297:ba24:b508:76de:f4a:df34^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	54.157.108.158^{🇺🇸 Amazon54.156.0.0/14 EC2 IAD prefix}
A	98.83.184.133^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
A	100.28.104.175^{🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix}
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}
			PTR	`dns1.p01.nsone.net`
NS	`dns2.p01.nsone.net` 🔒
		A	2a00:edc0:6259:7:1::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p01.nsone.net`
		A	198.51.45.1^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p01.nsone.net`
NS	`dns3.p01.nsone.net` 🔒
		A	2620:4d:4000:6259:7:1:0:3^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns3.p01.nsone.net`
		A	198.51.44.65^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns3.p01.nsone.net`
NS	`dns4.p01.nsone.net`
		A	2a00:edc0:6259:7:1::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p01.nsone.net`
		A	198.51.45.65^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns4.p01.nsone.net`
NS	`ns01.amcndns.com`
		A	2607:f740:e05a::1^{🇺🇸 NETACTUATE2607:f740:e05a::/48 NetActuate, Inc}
		A	45.54.99.1^{🇺🇸 NETACTUATE45.54.99.0/24 NetActuate, Inc}
			PTR	`ns01.amcndns.com`
			PTR	`ns01.amcndns.net`
NS	`ns01.amcndns.net` ⚠️ Not in parent delegation
		A	2607:f740:e05a::1^{🇺🇸 NETACTUATE2607:f740:e05a::/48 NetActuate, Inc}
		A	45.54.99.1^{🇺🇸 NETACTUATE45.54.99.0/24 NetActuate, Inc}
			PTR	`ns01.amcndns.com`
			PTR	`ns01.amcndns.net`
NS	`ns02.amcndns.com`
		A	2607:f740:e05a:4::1^{🇺🇸 NETACTUATE2607:f740:e05a::/48 NetActuate, Inc}
		A	45.54.99.65^{🇺🇸 NETACTUATE45.54.99.0/24 NetActuate, Inc}
NS	`ns02.amcndns.net` ⚠️ Not in parent delegation
		A	2607:f740:e05a:4::1^{🇺🇸 NETACTUATE2607:f740:e05a::/48 NetActuate, Inc}
		A	45.54.99.65^{🇺🇸 NETACTUATE45.54.99.0/24 NetActuate, Inc}
NS	`ns03.amcndns.com`
		A	2607:f740:e05a:8::1^{🇺🇸 NETACTUATE2607:f740:e05a::/48 NetActuate, Inc}
		A	45.54.99.129^{🇺🇸 NETACTUATE45.54.99.0/24 NetActuate, Inc}
NS	`ns03.amcndns.net` ⚠️ Not in parent delegation
		A	2607:f740:e05a:8::1^{🇺🇸 NETACTUATE2607:f740:e05a::/48 NetActuate, Inc}
		A	45.54.99.129^{🇺🇸 NETACTUATE45.54.99.0/24 NetActuate, Inc}
NS	`ns04.amcndns.com`
		A	2607:f740:e05a:c::1^{🇺🇸 NETACTUATE2607:f740:e05a::/48 NetActuate, Inc}
		A	45.54.99.193^{🇺🇸 NETACTUATE45.54.99.0/24 NetActuate, Inc}
NS	`ns04.amcndns.net` ⚠️ Not in parent delegation
		A	2607:f740:e05a:c::1^{🇺🇸 NETACTUATE2607:f740:e05a::/48 NetActuate, Inc}
		A	45.54.99.193^{🇺🇸 NETACTUATE45.54.99.0/24 NetActuate, Inc}
SOA	`dns1.p01.nsone.net`hostmaster@twdu.co serial=1666287149

`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=1759615358

Same first word

twdu.live

twdu.global

twdu.co

twdu.tv

twdu.club

twdu.org

twdu.com

twdu.network

twdu.us

Similar names

dtwu.cn

dwut.com

utdw.com

wudt.com

tdwu.net

wdtu.info

duwt.net

tduw.com

udwt.cn

uwtd.me

tdwu.com

wudt.net

udwt.com

tuwd.cn

udtw.com

utwd.com

duwt.org

duwt.com

utwd.com.ar

uwtd.com

wdut.cn

tudw.de

dwtu.cn

DNS History

24 records (18 active, 6 former)

●NSdns1.p01.nsone.net2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSdns2.p01.nsone.net2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSdns3.p01.nsone.net2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSdns4.p01.nsone.net2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSns01.amcndns.com2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSns01.amcndns.net2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSns02.amcndns.com2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSns02.amcndns.net2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSns03.amcndns.com2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSns03.amcndns.net2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSns04.amcndns.com2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●NSns04.amcndns.net2026-02-21 → 2026-03-23 · 2 obs

● 2026-02-21 15:13:22
● 2026-03-23 04:01:40

●A100.28.104.1752026-02-21 → 2026-03-23 · 17 obs

● 2026-02-21 15:13:22
● 2026-02-22 08:17:54
○ 2026-02-22 14:57:46
○ 2026-02-22 15:30:28
● 2026-02-22 16:46:10
○ 2026-02-22 18:55:42
○ 2026-02-22 20:00:38
● 2026-03-07 15:25:26
● 2026-03-07 17:32:06
○ 2026-03-07 18:20:38
○ 2026-03-07 19:26:40
● 2026-03-16 07:13:06
○ 2026-03-20 00:09:24
○ 2026-03-20 02:52:22
● 2026-03-20 03:24:42
○ 2026-03-20 08:55:20
● 2026-03-23 04:01:40

○A18.185.24.462026-02-22 → 2026-03-20 · 16 obs

○ 2026-02-22 08:17:54
● 2026-02-22 14:57:46
● 2026-02-22 15:30:28
○ 2026-02-22 16:46:10
● 2026-02-22 18:55:42
● 2026-02-22 20:00:38
○ 2026-03-07 15:25:26
○ 2026-03-07 17:32:06
● 2026-03-07 18:20:38
● 2026-03-07 19:26:40
○ 2026-03-16 07:13:06
● 2026-03-20 00:09:24
● 2026-03-20 02:52:22
○ 2026-03-20 03:24:42
● 2026-03-20 08:55:20
○ 2026-03-23 04:01:40

●A2600:1f18:297:ba0e:7900:f622:48a8:f2662026-02-21 → 2026-03-23 · 13 obs

● 2026-02-21 15:13:22
○ 2026-02-22 08:17:54
● 2026-02-22 14:57:46
● 2026-02-22 18:55:42
○ 2026-02-22 20:00:38
● 2026-03-07 15:25:26
○ 2026-03-07 17:32:06
● 2026-03-07 18:20:38
○ 2026-03-07 19:26:40
● 2026-03-16 07:13:06
● 2026-03-20 03:24:42
○ 2026-03-20 08:55:20
● 2026-03-23 04:01:40

●A2600:1f18:297:ba18:6ddc:5d8f:6053:f0032026-02-21 → 2026-03-23 · 13 obs

●A2600:1f18:297:ba24:b508:76de:f4a:df342026-02-21 → 2026-03-23 · 13 obs

○A2a05:d014:803:f30a:4c8d:5530:dac2:1792026-02-22 → 2026-03-20 · 13 obs

○ 2026-02-21 15:13:22
● 2026-02-22 08:17:54
○ 2026-02-22 14:57:46
○ 2026-02-22 18:55:42
● 2026-02-22 20:00:38
○ 2026-03-07 15:25:26
● 2026-03-07 17:32:06
○ 2026-03-07 18:20:38
● 2026-03-07 19:26:40
○ 2026-03-16 07:13:06
○ 2026-03-20 03:24:42
● 2026-03-20 08:55:20
○ 2026-03-23 04:01:40

○A2a05:d014:803:f30c:505c:9738:13c:b7a52026-02-22 → 2026-03-20 · 13 obs

○A2a05:d014:803:f30e:ffe5:90d1:736a:fcad2026-02-22 → 2026-03-20 · 13 obs

○A3.126.5.1882026-02-22 → 2026-03-20 · 16 obs

○A3.71.139.1532026-02-22 → 2026-03-20 · 16 obs

●A54.157.108.1582026-02-21 → 2026-03-23 · 17 obs

●A98.83.184.1332026-02-21 → 2026-03-23 · 17 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	b.registrydns.co, d.registrydns.co, a.registrydns.co, c.registrydns.co	-
twdu.co	dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net...	-

✅ Authoritative Response

Server:45.54.99.1

NS records: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, ns01.amcndns.com, ns02.amcndns.com, ns03.amcndns.com, ns04.amcndns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for twdu.co (unsigned zone)

⏱️ Timing

Total: 553ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`100.28.104.175, 54.157.108.158...`
AAAA	3	`2600:1f18:297:ba0e:7900:f622:48a8:f266, 2600:1f18:297:ba18:6ddc:5d8f:6053:f003...`
NS	12	`dns1.p01.nsone.net, dns2.p01.nsone.net...`
SOA	1	`dns1.p01.nsone.net hostmaster.twdu.co`

Analysis

IP Addresses

twdu.co resolves to six IP numbers: 2600:1f18:297:ba0e:7900:f622:48a8:f266, 2600:1f18:297:ba18:6ddc:5d8f:6053:f003, 2600:1f18:297:ba24:b508:76de:f4a:df34, 54.157.108.158, 98.83.184.133 and 100.28.104.175.

Other host names, for instance adoptacat.org, showtimenext.com, jigsawlegal.com, balenciaga.org.cn and aws.ski share IP numbers with twdu.co.

Name Servers

twdu.co delegates to twelve name servers: ns01.amcndns.com, ns02.amcndns.com, ns03.amcndns.com, ns04.amcndns.com, ns01.amcndns.net, ns02.amcndns.net, ns03.amcndns.net, ns04.amcndns.net, dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and dns4.p01.nsone.net.

twdu.co partially shares name servers with other domains; examples include bimsolutionsllc.com, jessica-pishko.com, risperdal.com.br, ericbeltz.com and resoundsupport.com.

These name servers are often used with ns01.jnjdns.com, ns02.jnjdns.com, ns03.jnjdns.com, ns04.jnjdns.com, ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com and ns04.squarespacedns.com.

Host names with two IP numbers

The host names and their two IPs are:

- ns01.amcndns.com points to 2607:f740:e05a::1 and 45.54.99.1

- ns02.amcndns.com points to 2607:f740:e05a:4::1 and 45.54.99.65

- ns03.amcndns.com points to 2607:f740:e05a:8::1 and 45.54.99.129

- ns04.amcndns.com points to 2607:f740:e05a:c::1 and 45.54.99.193

- ns01.amcndns.net points to 2607:f740:e05a::1 and 45.54.99.1

- ns02.amcndns.net points to 2607:f740:e05a:4::1 and 45.54.99.65

- ns03.amcndns.net points to 2607:f740:e05a:8::1 and 45.54.99.129

- ns04.amcndns.net points to 2607:f740:e05a:c::1 and 45.54.99.193

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

- dns2.p01.nsone.net points to 2a00:edc0:6259:7:1::2 and 198.51.45.1

- dns3.p01.nsone.net points to 2620:4d:4000:6259:7:1:0:3 and 198.51.44.65

- dns4.p01.nsone.net points to 2a00:edc0:6259:7:1::4 and 198.51.45.65

Host names that point to 2607:f740:e05a::1: ns01.amcndns.com and ns01.amcndns.net

Host names that point to 45.54.99.1: ns01.amcndns.com and ns01.amcndns.net

Host names that point to 2607:f740:e05a:4::1: ns02.amcndns.com and ns02.amcndns.net

Host names that point to 45.54.99.65: ns02.amcndns.com and ns02.amcndns.net

Host names that point to 2607:f740:e05a:8::1: ns03.amcndns.com and ns03.amcndns.net

Host names that point to 45.54.99.129: ns03.amcndns.com and ns03.amcndns.net

Host names that point to 2607:f740:e05a:c::1: ns04.amcndns.com and ns04.amcndns.net

Host names that point to 45.54.99.193: ns04.amcndns.com and ns04.amcndns.net

twdu.co - robtex.com

twdu.co

co

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`twdu.co`

`co`