`51archi.com`

DNSSEC	⚠️ Not signed
A	3.171.85.41^{🇺🇸 Amazon3.171.84.0/22}
		PTR	`server-3-171-85-41.iad89.r.cloudfront.net`
A	3.171.85.88^{🇺🇸 Amazon3.171.84.0/22}
A	3.171.85.101^{🇺🇸 Amazon3.171.84.0/22}
A	3.171.85.112^{🇺🇸 Amazon3.171.84.0/22}
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 ip4:52.79.92.223 ~all`
SOA	`ans1.hostcocoa.com`awsdns-hostmaster@amazon.com serial=1

`com`

	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=1771291435

Same first word

51archi.com

DNS History

26 records (10 active, 16 former)

●NSans1.hostcocoa.com2026-02-15 → 2026-03-18 · 2 obs

● 2026-02-15 12:28:36
● 2026-03-18 19:13:28

●NSans2.hostcocoa.com2026-02-15 → 2026-03-18 · 2 obs

● 2026-02-15 12:28:36
● 2026-03-18 19:13:28

●NSans3.hostcocoa.com2026-02-15 → 2026-03-18 · 2 obs

● 2026-02-15 12:28:36
● 2026-03-18 19:13:28

●NSans4.hostcocoa.com2026-02-15 → 2026-03-18 · 2 obs

● 2026-02-15 12:28:36
● 2026-03-18 19:13:28

●MXkr1-aspmx1.worksmobile.com2026-02-15 → 2026-03-18 · 2 obs

● 2026-02-15 12:28:36
● 2026-03-18 19:13:28

●MXkr1-aspmx2.worksmobile.com2026-02-15 → 2026-03-18 · 2 obs

● 2026-02-15 12:28:36
● 2026-03-18 19:13:28

○A13.32.230.1092026-02-15 → 2026-03-15 · 29 obs

● 2026-02-15 12:28:36
○ 2026-02-15 22:37:50
○ 2026-02-16 12:00:38
● 2026-02-16 14:36:10
○ 2026-02-17 02:41:24
● 2026-02-17 04:57:10
○ 2026-02-17 08:40:08
○ 2026-02-21 08:57:10
● 2026-02-21 11:28:08
○ 2026-02-21 14:25:30
○ 2026-02-25 02:36:08
● 2026-02-25 05:25:16
● 2026-02-25 06:40:28
○ 2026-02-25 17:41:34
● 2026-02-26 01:54:12
○ 2026-02-26 03:57:00
● 2026-02-26 04:30:16
● 2026-02-26 07:25:04
○ 2026-02-26 23:08:54
○ 2026-02-27 00:18:00
● 2026-02-27 03:28:12
○ 2026-02-27 15:22:56
○ 2026-03-13 12:59:42
● 2026-03-13 21:24:44
○ 2026-03-13 23:28:52
○ 2026-03-15 00:10:36
● 2026-03-15 02:41:14
○ 2026-03-15 03:36:00
○ 2026-03-18 19:13:28

○A13.32.230.1152026-02-15 → 2026-03-15 · 29 obs

○A13.32.230.332026-02-15 → 2026-03-15 · 29 obs

○A13.32.230.682026-02-15 → 2026-03-15 · 29 obs

○A13.32.241.1102026-03-07 → 2026-03-14 · 8 obs

○ 2026-03-07 03:20:38
● 2026-03-07 23:07:54
● 2026-03-08 00:47:26
○ 2026-03-08 12:45:14
○ 2026-03-14 01:38:18
● 2026-03-14 15:04:34
○ 2026-03-14 17:10:06
○ 2026-03-18 19:13:28

○A13.32.241.1152026-03-07 → 2026-03-14 · 8 obs

○ 2026-03-07 03:20:38
● 2026-03-07 23:07:54
● 2026-03-08 00:47:26
○ 2026-03-08 12:45:14
○ 2026-03-14 01:38:18
● 2026-03-14 15:04:34
○ 2026-03-14 17:10:06
○ 2026-03-18 19:13:28

○A13.32.241.392026-03-07 → 2026-03-14 · 8 obs

○ 2026-03-07 03:20:38
● 2026-03-07 23:07:54
● 2026-03-08 00:47:26
○ 2026-03-08 12:45:14
○ 2026-03-14 01:38:18
● 2026-03-14 15:04:34
○ 2026-03-14 17:10:06
○ 2026-03-18 19:13:28

○A13.32.241.632026-03-07 → 2026-03-14 · 8 obs

○ 2026-03-07 03:20:38
● 2026-03-07 23:07:54
● 2026-03-08 00:47:26
○ 2026-03-08 12:45:14
○ 2026-03-14 01:38:18
● 2026-03-14 15:04:34
○ 2026-03-14 17:10:06
○ 2026-03-18 19:13:28

○A18.161.21.132026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-08 17:57:22
● 2026-03-08 23:08:18
○ 2026-03-09 03:50:24
○ 2026-03-18 19:13:28

○A18.161.21.272026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-08 17:57:22
● 2026-03-08 23:08:18
○ 2026-03-09 03:50:24
○ 2026-03-18 19:13:28

○A18.161.21.822026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-08 17:57:22
● 2026-03-08 23:08:18
○ 2026-03-09 03:50:24
○ 2026-03-18 19:13:28

○A18.161.21.922026-03-08 → 2026-03-08 · 4 obs

○ 2026-03-08 17:57:22
● 2026-03-08 23:08:18
○ 2026-03-09 03:50:24
○ 2026-03-18 19:13:28

●A3.171.85.1012026-02-16 → 2026-03-18 · 63 obs

○ 2026-02-15 12:28:36
○ 2026-02-15 23:16:22
● 2026-02-16 00:09:54
○ 2026-02-16 02:20:54
○ 2026-02-17 04:57:10
● 2026-02-17 08:40:08
● 2026-02-18 02:16:14
○ 2026-02-18 22:59:28
○ 2026-02-19 04:56:54
● 2026-02-19 18:44:06
○ 2026-02-21 02:36:10
○ 2026-02-21 14:25:30
● 2026-02-21 15:32:38
● 2026-02-22 23:08:06
○ 2026-02-23 14:42:52
● 2026-02-23 22:39:56
○ 2026-02-24 00:38:02
○ 2026-02-24 20:43:46
● 2026-02-24 23:07:30
● 2026-02-25 00:11:06
○ 2026-02-25 02:36:08
○ 2026-02-26 07:25:04
● 2026-02-26 23:08:54
● 2026-02-27 00:18:00
○ 2026-02-27 03:28:12
○ 2026-02-27 15:22:56
● 2026-02-27 23:08:06
● 2026-02-28 00:13:38
○ 2026-02-28 08:43:36
● 2026-02-28 23:07:20
○ 2026-02-28 23:49:10
○ 2026-03-01 12:28:54
● 2026-03-01 23:13:38
○ 2026-03-02 02:19:02
● 2026-03-02 23:07:42
● 2026-03-03 23:08:56
○ 2026-03-04 03:11:28
○ 2026-03-04 06:23:14
● 2026-03-04 23:08:04
● 2026-03-05 23:07:40
○ 2026-03-06 08:31:36
○ 2026-03-06 21:43:44
● 2026-03-06 23:07:48
● 2026-03-07 03:20:38
○ 2026-03-07 23:07:54
○ 2026-03-09 09:01:42
● 2026-03-09 23:08:36
● 2026-03-10 00:13:02
○ 2026-03-10 04:08:58
○ 2026-03-11 22:40:00
● 2026-03-12 22:45:34
● 2026-03-13 00:12:02
○ 2026-03-13 12:59:42
○ 2026-03-14 17:10:06
● 2026-03-14 23:09:04
● 2026-03-15 00:10:36
○ 2026-03-15 02:41:14
○ 2026-03-16 23:07:26
● 2026-03-17 00:01:42
● 2026-03-17 15:34:12
○ 2026-03-17 16:48:34
● 2026-03-18 19:13:26
● 2026-03-18 19:13:28

●A3.171.85.1122026-02-16 → 2026-03-18 · 63 obs

●A3.171.85.412026-02-16 → 2026-03-18 · 63 obs

●A3.171.85.882026-02-16 → 2026-03-18 · 63 obs

○A3.174.141.1132026-02-15 → 2026-03-17 · 78 obs

○ 2026-02-15 12:28:36
● 2026-02-15 22:37:50
● 2026-02-15 23:16:22
○ 2026-02-16 00:09:54
● 2026-02-16 02:20:54
● 2026-02-16 12:00:38
○ 2026-02-16 14:36:10
● 2026-02-17 02:41:24
○ 2026-02-17 04:57:10
○ 2026-02-18 02:16:14
● 2026-02-18 22:59:28
● 2026-02-19 04:56:54
○ 2026-02-19 18:44:06
● 2026-02-21 02:36:10
● 2026-02-21 08:57:10
○ 2026-02-21 11:28:08
● 2026-02-21 14:25:30
○ 2026-02-21 15:32:38
○ 2026-02-22 23:08:06
● 2026-02-23 14:42:52
○ 2026-02-23 22:39:56
● 2026-02-24 00:38:02
● 2026-02-24 20:43:46
○ 2026-02-24 23:07:30
○ 2026-02-25 00:11:06
● 2026-02-25 02:36:08
○ 2026-02-25 05:25:16
○ 2026-02-25 06:40:28
● 2026-02-25 17:41:34
○ 2026-02-26 01:54:12
● 2026-02-26 03:57:00
○ 2026-02-26 04:30:16
○ 2026-02-27 03:28:12
● 2026-02-27 15:22:56
○ 2026-02-27 23:08:06
○ 2026-02-28 00:13:38
● 2026-02-28 08:43:36
○ 2026-02-28 23:07:20
● 2026-02-28 23:49:10
● 2026-03-01 12:28:54
○ 2026-03-01 23:13:38
● 2026-03-02 02:19:02
○ 2026-03-02 23:07:42
○ 2026-03-03 23:08:56
● 2026-03-04 03:11:28
● 2026-03-04 06:23:14
○ 2026-03-04 23:08:04
○ 2026-03-05 23:07:40
● 2026-03-06 08:31:36
● 2026-03-06 21:43:44
○ 2026-03-06 23:07:48
○ 2026-03-08 00:47:26
● 2026-03-08 12:45:14
● 2026-03-08 17:57:22
○ 2026-03-08 23:08:18
● 2026-03-09 03:50:24
● 2026-03-09 09:01:42
○ 2026-03-09 23:08:36
○ 2026-03-10 00:13:02
● 2026-03-10 04:08:58
● 2026-03-11 22:40:00
○ 2026-03-12 22:45:34
○ 2026-03-13 00:12:02
● 2026-03-13 12:59:42
○ 2026-03-13 21:24:44
● 2026-03-13 23:28:52
● 2026-03-14 01:38:18
○ 2026-03-14 15:04:34
● 2026-03-14 17:10:06
○ 2026-03-14 23:09:04
○ 2026-03-15 02:41:14
● 2026-03-15 03:36:00
● 2026-03-16 23:07:26
○ 2026-03-17 00:01:42
○ 2026-03-17 15:34:12
● 2026-03-17 16:48:34
○ 2026-03-18 19:13:26
○ 2026-03-18 19:13:28

○A3.174.141.502026-02-15 → 2026-03-17 · 78 obs

○A3.174.141.572026-02-15 → 2026-03-17 · 78 obs

○A3.174.141.902026-02-15 → 2026-03-17 · 78 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net...	-
51archi.com	ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com, ans4.hostcocoa.com	4 records

✅ Authoritative Response

Server: 205.251.192.117

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51archi.com (unsigned zone)

⏱️ Timing

Total: 204ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.85.88, 3.171.85.101...`
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 ip4:52.79.92.223 ~all`
SOA	1	`ans1.hostcocoa.com awsdns-hostmaster.ama`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com...)

Analysis

IP Addresses

51archi.com resolves to four IP numbers: 3.171.85.41, 3.171.85.88, 3.171.85.101 and 3.171.85.112.

Other host names such as cvshealth.awsapps.com, net.openagora.cl, xeval.net, www.spd-fraktion-bergheim.de and sib.mo.sportsbook.fanduel.com share IPs with 51archi.com.

Name Servers

51archi.com is delegated to four name servers: ans1.hostcocoa.com, ans2.hostcocoa.com, ans3.hostcocoa.com and ans4.hostcocoa.com.

51archi.com at least partially shares name servers with other domains, for instance beanpod.co.kr, adlike.kr, leadersmac.com, lesmis.co.kr and dapalm.kr.

Host names with one IP number:

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

51archi.com is handled by two mail servers: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com.

The mail server setup for 51archi.com matches that of other domains, for instance pentamatics.com, artravel.co.kr, yisangcorp.com, phaserep.com and naeil.com.

51archi.com shares at least partially some mail servers with other domains, including goodnwise.com, bluebirdsyndrome.com, dcube-sys.com, openmind.co.kr and cwsw.co.kr.

Host names sharing one IP: kr1-aspmx1.worksmobile.com and kr1-aspmx2.worksmobile.com point to 125.209.209.251.

51archi.com - robtex.com

51archi.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`51archi.com`

`com`