`uldd.net`

DNSSEC	⚠️ Not signed
A	13.35.78.11^{🇺🇸 Amazon13.35.78.0/23 -Cloudfront}
		PTR	`server-13-35-78-11.iad61.r.cloudfront.net`
A	13.35.78.67^{🇺🇸 Amazon13.35.78.0/23 -Cloudfront}
A	13.35.78.88^{🇺🇸 Amazon13.35.78.0/23 -Cloudfront}
A	13.35.78.96^{🇺🇸 Amazon13.35.78.0/23 -Cloudfront}
NS	`ans1.hostcocoa.com` ⭐
		A	205.251.192.117^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-117.awsdns-14.com`
NS	`ans2.hostcocoa.com`
		A	205.251.195.46^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-814.awsdns-37.net`
NS	`ans3.hostcocoa.com`
		A	205.251.197.133^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1413.awsdns-48.org`
NS	`ans4.hostcocoa.com`
		A	205.251.198.221^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1757.awsdns-27.co.uk`
MX	`kr1-aspmx1.worksmobile.com` ⭐
		A	125.209.209.251^{🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform}
			PTR	`crcvmail.worksmobile.com`
MX	`kr1-aspmx2.worksmobile.com`⁽²⁰⁾
		A	125.209.209.251^{🇰🇷 nhn-AS-KR125.209.208.0/22 NAVER business platform}
			PTR	`crcvmail.worksmobile.com`
TXT	`v=spf1 include:spf.worksmobile.com ~all`
SOA	`ans1.hostcocoa.com`awsdns-hostmaster@amazon.com serial=1

`net`

	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=1771291465

Same first word

uldd.com

uldd.net

uldd.cn

Similar names

ludd.info

ludd.co.uk

ludd.es

duld.de

duld.com

dudl.eu

udld.com

dudl.ch

ddul.cn

ludd.cn

dudl.us

lddu.com

dudl.cn

dldu.com

ddlu.cn

ldud.cn

ddlu.de

ldud.com

uddl.com

ddlu.com

ludd.net

ludd.com

dudl.ru

dlud.net

dudl.co.uk

dlud.cn

dudl.cz

dudl.de

udld.biz

udld.cn

dudl.com

ludd.co

ddul.com

dudl.net

dudl.me

DNS History

36 records (10 active, 26 former)

●NSans1.hostcocoa.com2026-03-14 → 2026-03-24 · 3 obs

○ 2018-09-02 22:38:58
● 2026-03-14 11:53:50
● 2026-03-24 04:38:58

●NSans2.hostcocoa.com2026-03-14 → 2026-03-24 · 3 obs

○ 2018-09-02 22:38:58
● 2026-03-14 11:53:50
● 2026-03-24 04:38:58

●NSans3.hostcocoa.com2026-03-14 → 2026-03-24 · 3 obs

○ 2018-09-02 22:38:58
● 2026-03-14 11:53:50
● 2026-03-24 04:38:58

●NSans4.hostcocoa.com2026-03-14 → 2026-03-24 · 3 obs

○ 2018-09-02 22:38:58
● 2026-03-14 11:53:50
● 2026-03-24 04:38:58

○NSdns10.hichina.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 11:01:34
○ 2018-09-02 22:38:58
○ 2026-03-24 04:38:58

○NSdns9.hichina.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 11:01:34
○ 2018-09-02 22:38:58
○ 2026-03-24 04:38:58

●MXkr1-aspmx1.worksmobile.com2026-03-14 → 2026-03-24 · 2 obs

● 2026-03-14 11:53:50
● 2026-03-24 04:38:58

●MXkr1-aspmx2.worksmobile.com2026-03-14 → 2026-03-24 · 2 obs

● 2026-03-14 11:53:50
● 2026-03-24 04:38:58

○A13.32.230.1052026-03-16 → 2026-03-21 · 42 obs

○ 2026-03-16 18:31:10
● 2026-03-16 20:46:44
○ 2026-03-16 22:03:24
○ 2026-03-17 05:29:46
● 2026-03-17 09:48:10
○ 2026-03-17 10:27:42
○ 2026-03-17 13:38:48
● 2026-03-17 16:27:00
○ 2026-03-17 18:17:14
● 2026-03-17 19:19:44
○ 2026-03-17 20:40:18
○ 2026-03-18 15:31:56
● 2026-03-18 17:12:06
○ 2026-03-18 21:06:00
● 2026-03-18 22:02:28
○ 2026-03-19 00:14:02
○ 2026-03-19 08:30:02
● 2026-03-19 15:40:02
● 2026-03-19 16:52:52
○ 2026-03-19 17:48:48
● 2026-03-19 19:08:10
○ 2026-03-19 21:05:26
● 2026-03-20 01:34:46
○ 2026-03-20 02:51:30
○ 2026-03-20 03:39:42
● 2026-03-20 10:33:46
● 2026-03-20 11:18:38
○ 2026-03-20 14:12:40
● 2026-03-20 14:51:56
● 2026-03-20 17:15:14
○ 2026-03-20 17:55:56
● 2026-03-21 01:45:20
○ 2026-03-21 03:45:08
● 2026-03-21 07:43:50
○ 2026-03-21 08:54:12
○ 2026-03-21 09:34:46
● 2026-03-21 15:41:22
● 2026-03-21 17:39:16
○ 2026-03-21 18:24:10
● 2026-03-21 20:06:18
○ 2026-03-22 01:01:46
○ 2026-03-24 04:38:58

○A13.32.230.1092026-03-16 → 2026-03-21 · 42 obs

○A13.32.230.132026-03-16 → 2026-03-21 · 42 obs

○A13.32.230.162026-03-16 → 2026-03-21 · 42 obs

○A13.33.235.1012026-03-23 → 2026-03-23 · 5 obs

○ 2026-03-22 21:20:48
● 2026-03-23 02:34:54
● 2026-03-23 08:25:54
○ 2026-03-23 19:12:04
○ 2026-03-24 04:38:58

○A13.33.235.1102026-03-23 → 2026-03-23 · 5 obs

○ 2026-03-22 21:20:48
● 2026-03-23 02:34:54
● 2026-03-23 08:25:54
○ 2026-03-23 19:12:04
○ 2026-03-24 04:38:58

○A13.33.235.492026-03-23 → 2026-03-23 · 5 obs

○ 2026-03-22 21:20:48
● 2026-03-23 02:34:54
● 2026-03-23 08:25:54
○ 2026-03-23 19:12:04
○ 2026-03-24 04:38:58

○A13.33.235.932026-03-23 → 2026-03-23 · 5 obs

○ 2026-03-22 21:20:48
● 2026-03-23 02:34:54
● 2026-03-23 08:25:54
○ 2026-03-23 19:12:04
○ 2026-03-24 04:38:58

●A13.35.78.112026-03-16 → 2026-03-24 · 21 obs

○ 2026-03-16 00:13:38
● 2026-03-16 18:31:10
○ 2026-03-16 20:46:44
○ 2026-03-17 09:48:10
● 2026-03-17 10:27:42
○ 2026-03-17 13:38:48
○ 2026-03-17 16:27:00
● 2026-03-17 18:17:14
○ 2026-03-17 19:19:44
○ 2026-03-18 06:05:16
● 2026-03-18 07:32:44
○ 2026-03-18 10:09:58
○ 2026-03-18 22:02:28
● 2026-03-19 00:14:02
○ 2026-03-19 01:38:02
○ 2026-03-23 08:25:54
● 2026-03-23 19:12:04
○ 2026-03-23 23:10:06
○ 2026-03-24 02:22:24
● 2026-03-24 04:38:56
● 2026-03-24 04:38:58

●A13.35.78.672026-03-16 → 2026-03-24 · 21 obs

●A13.35.78.882026-03-16 → 2026-03-24 · 21 obs

●A13.35.78.962026-03-16 → 2026-03-24 · 21 obs

○A18.173.219.112026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 11:53:50
○ 2026-03-14 13:23:22
○ 2026-03-24 04:38:58

○A18.173.219.282026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 11:53:50
○ 2026-03-14 13:23:22
○ 2026-03-24 04:38:58

○A18.173.219.352026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 11:53:50
○ 2026-03-14 13:23:22
○ 2026-03-24 04:38:58

○A18.173.219.862026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 11:53:50
○ 2026-03-14 13:23:22
○ 2026-03-24 04:38:58

○A18.244.124.432026-03-19 → 2026-03-19 · 7 obs

○ 2026-03-19 01:38:02
● 2026-03-19 08:30:02
○ 2026-03-19 15:40:02
○ 2026-03-19 16:52:52
● 2026-03-19 17:48:48
○ 2026-03-19 19:08:10
○ 2026-03-24 04:38:58

○A18.244.124.492026-03-19 → 2026-03-19 · 7 obs

○ 2026-03-19 01:38:02
● 2026-03-19 08:30:02
○ 2026-03-19 15:40:02
○ 2026-03-19 16:52:52
● 2026-03-19 17:48:48
○ 2026-03-19 19:08:10
○ 2026-03-24 04:38:58

○A18.244.124.502026-03-19 → 2026-03-19 · 7 obs

○ 2026-03-19 01:38:02
● 2026-03-19 08:30:02
○ 2026-03-19 15:40:02
○ 2026-03-19 16:52:52
● 2026-03-19 17:48:48
○ 2026-03-19 19:08:10
○ 2026-03-24 04:38:58

○A18.244.124.632026-03-19 → 2026-03-19 · 7 obs

○ 2026-03-19 01:38:02
● 2026-03-19 08:30:02
○ 2026-03-19 15:40:02
○ 2026-03-19 16:52:52
● 2026-03-19 17:48:48
○ 2026-03-19 19:08:10
○ 2026-03-24 04:38:58

○A18.245.187.1002026-03-21 → 2026-03-21 · 4 obs

○ 2026-03-21 01:45:20
● 2026-03-21 03:45:08
○ 2026-03-21 07:43:50
○ 2026-03-24 04:38:58

○A18.245.187.1102026-03-21 → 2026-03-21 · 4 obs

○ 2026-03-21 01:45:20
● 2026-03-21 03:45:08
○ 2026-03-21 07:43:50
○ 2026-03-24 04:38:58

○A18.245.187.442026-03-21 → 2026-03-21 · 4 obs

○ 2026-03-21 01:45:20
● 2026-03-21 03:45:08
○ 2026-03-21 07:43:50
○ 2026-03-24 04:38:58

○A18.245.187.752026-03-21 → 2026-03-21 · 4 obs

○ 2026-03-21 01:45:20
● 2026-03-21 03:45:08
○ 2026-03-21 07:43:50
○ 2026-03-24 04:38:58

○A18.245.218.332026-03-14 → 2026-03-24 · 50 obs

○ 2026-03-14 11:53:50
● 2026-03-14 13:23:22
● 2026-03-16 00:13:38
○ 2026-03-16 18:31:10
○ 2026-03-16 20:46:44
● 2026-03-16 22:03:24
● 2026-03-17 05:29:46
○ 2026-03-17 09:48:10
○ 2026-03-17 10:27:42
● 2026-03-17 13:38:48
○ 2026-03-17 16:27:00
○ 2026-03-17 19:19:44
● 2026-03-17 20:40:18
● 2026-03-18 06:05:16
○ 2026-03-18 07:32:44
● 2026-03-18 10:09:58
● 2026-03-18 15:31:56
○ 2026-03-18 17:12:06
● 2026-03-18 21:06:00
○ 2026-03-18 22:02:28
○ 2026-03-19 00:14:02
● 2026-03-19 01:38:02
○ 2026-03-19 08:30:02
○ 2026-03-19 19:08:10
● 2026-03-19 21:05:26
○ 2026-03-20 01:34:46
● 2026-03-20 02:51:30
● 2026-03-20 03:39:42
○ 2026-03-20 10:33:46
○ 2026-03-20 11:18:38
● 2026-03-20 14:12:40
○ 2026-03-20 14:51:56
○ 2026-03-20 17:15:14
● 2026-03-20 17:55:56
○ 2026-03-21 01:45:20
○ 2026-03-21 07:43:50
● 2026-03-21 08:54:12
● 2026-03-21 09:34:46
○ 2026-03-21 15:41:22
○ 2026-03-21 17:39:16
● 2026-03-21 18:24:10
○ 2026-03-21 20:06:18
● 2026-03-22 01:01:46
● 2026-03-22 21:20:48
○ 2026-03-23 02:34:54
○ 2026-03-23 19:12:04
● 2026-03-23 23:10:06
● 2026-03-24 02:22:24
○ 2026-03-24 04:38:56
○ 2026-03-24 04:38:58

○A18.245.218.362026-03-14 → 2026-03-24 · 50 obs

○A18.245.218.692026-03-14 → 2026-03-24 · 50 obs

○A18.245.218.942026-03-14 → 2026-03-24 · 50 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
uldd.net	ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com, ans4.hostcocoa.com	-

✅ Authoritative Response

Server:205.251.198.221

NS records: ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com, ans4.hostcocoa.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for uldd.net (unsigned zone)

⏱️ Timing

Total: 628ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.35.78.88, 13.35.78.11...`
NS	4	`ans1.hostcocoa.com, ans2.hostcocoa.com...`
MX	2	`kr1-aspmx1.worksmobile.com (pri: 10), kr1-aspmx2.worksmobile.com (pri: 20)`
TXT	1	`v=spf1 include:spf.worksmobile.com ~all`
SOA	1	`ans1.hostcocoa.com awsdns-hostmaster.ama`

Analysis

IP Addresses

uldd.net points to four IP numbers: 13.35.78.11, 13.35.78.67, 13.35.78.88 and 13.35.78.96.

For instance, other host names d21bpf6d1mkezf.cloudfront.net, shinsei.kumamoto-wagyuu-matuoka.com, petmall.co.il, peraiti.com and a1.awsstatic.com share IP numbers with uldd.net.

Name Servers

uldd.net is delegated to four name servers: ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com and ans4.hostcocoa.com.

uldd.net shares name servers with other domains at least partially, for example jangsuon.com, big-blur.co.kr, terafa.com, vuumpet.com and yed.co.kr.

Host names with a single IP:

ans1.hostcocoa.com points to 205.251.192.117

ans2.hostcocoa.com points to 205.251.195.46

ans3.hostcocoa.com points to 205.251.197.133

ans4.hostcocoa.com points to 205.251.198.221

Mail Servers

Two mail servers kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com handle uldd.net.

uldd.net shares the same mail server setup as other domains, for instance tmjis.co.kr, kingdomarmy.com, wrione.com, buildit.kr and sova.co.kr.

uldd.net shares mail servers with other domains at least partially; for instance ps.hs.kr, smart36.co.kr, dsic.co, naraenco.com and elim.green.

Host names with a single IP

kr1-aspmx1.worksmobile.com points to: 125.209.209.251

kr1-aspmx2.worksmobile.com points to: 125.209.209.251

Host names pointing to 125.209.209.251: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com

uldd.net - robtex.com

uldd.net

net

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`uldd.net`

`net`