`mahjongchallenge.com`

DNSSEC	⚠️ Not signed
NS	`yns1.yahoo.com` ⚠️ Not in zone NS records
		A	34.195.51.6^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
			PTR	`ec2-34-195-51-6.compute-1.amazonaws.com`
		A	34.227.186.2^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
			PTR	`ec2-34-227-186-2.compute-1.amazonaws.com`
NS	`yns2.yahoo.com` ⚠️ Not in zone NS records
		A	52.3.46.62^{🇺🇸 Amazon52.2.0.0/15 EC2 IAD prefix}
			PTR	`ec2-52-3-46-62.compute-1.amazonaws.com`
		A	52.73.255.93^{🇺🇸 Amazon52.72.0.0/15 EC2 IAD prefix}
			PTR	`ec2-52-73-255-93.compute-1.amazonaws.com`

`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=1774398522

Same first word

mahjongchallenge.com

DNS History

14 records (2 active, 12 former)

○NSno-dyn-updates.san.yahoo.com2015-07-08 → 2020-01-18 · 5 obs

○ 2008-03-16 14:52:28
● 2015-07-08 09:54:02
● 2020-01-18 04:31:44
○ 2026-03-16 18:10:30
○ 2026-03-25 00:43:04

●NSyns1.yahoo.com2008-03-16 → 2026-03-25 · 2 obs

● 2008-03-16 14:52:28
● 2026-03-25 00:43:04

●NSyns2.yahoo.com2008-03-16 → 2026-03-25 · 2 obs

● 2008-03-16 14:52:28
● 2026-03-25 00:43:04

○MXmx-biz.mail.am0.yahoodns.net2015-07-08 → 2020-01-18 · 5 obs

○ 2008-03-16 14:52:28
● 2015-07-08 09:54:02
● 2020-01-18 04:31:44
○ 2026-03-16 18:10:30
○ 2026-03-25 00:43:04

○MXmx1.biz.mail.yahoo.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 14:52:28
○ 2015-07-08 09:54:02
○ 2026-03-25 00:43:04

○MXmx5.biz.mail.yahoo.com2008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 14:52:28
○ 2015-07-08 09:54:02
○ 2026-03-25 00:43:04

○A67.195.61.462015-07-08 → 2017-01-28 · 5 obs

○ 2008-03-16 14:52:28
● 2015-07-08 09:54:02
● 2017-01-28 01:14:22
○ 2020-01-18 04:31:44
○ 2026-03-25 00:43:04

○A68.142.234.552008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 14:52:28
○ 2015-07-08 09:54:02
○ 2026-03-25 00:43:04

○A68.142.234.562008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 14:52:28
○ 2015-07-08 09:54:02
○ 2026-03-25 00:43:04

○A68.142.234.572008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 14:52:28
○ 2015-07-08 09:54:02
○ 2026-03-25 00:43:04

○A68.142.234.582008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 14:52:28
○ 2015-07-08 09:54:02
○ 2026-03-25 00:43:04

○A68.142.234.592008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 14:52:28
○ 2015-07-08 09:54:02
○ 2026-03-25 00:43:04

○A68.142.234.602008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 14:52:28
○ 2015-07-08 09:54:02
○ 2026-03-25 00:43:04

○A98.137.244.362020-01-18 → 2020-01-18 · 4 obs

○ 2017-01-28 01:14:22
● 2020-01-18 04:31:44
○ 2026-03-16 18:10:30
○ 2026-03-25 00:43:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net...	-
mahjongchallenge.com	yns1.yahoo.com, yns2.yahoo.com	4 records

✅ Authoritative Response

Server:34.195.51.6

NS records: yns1.yahoo.com, yns2.yahoo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mahjongchallenge.com (unsigned zone)

⏱️ Timing

Total: 110ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (yns1.yahoo.com, yns1.yahoo.com, yns2.yahoo.com...)

Analysis

Name Servers

mahjongchallenge.com is delegated to two name servers: yns1.yahoo.com and yns2.yahoo.com.

mahjongchallenge.com uses the same name server setup as other domains, for instance oenohound.com, xtc-clothing.com, definitiveprocesslibrary.com, unitedwindowscreens.com and divergentbookseries.com.

mahjongchallenge.com shares name servers with other domains at least partially, for instance videosafety.com, puremtc.com, perksys.com, microwavesolutions.com and enviroteaminc.com.

these name servers are commonly used together with ns1.turbify.com and ns2.turbify.com.

Host names with two IP numbers:

The host yns1.yahoo.com points to 34.195.51.6 and 34.227.186.2.

The host yns2.yahoo.com points to 52.3.46.62 and 52.73.255.93.

mahjongchallenge.com - robtex.com