`yah00.com`

DNSSEC	⚠️ Not signed
A	13.248.158.7^{🇺🇸 Amazon13.248.144.0/20}
		PTR	`a7de0457831fd11f7.awsglobalaccelerator.com`
A	76.223.84.192^{🇺🇸 Amazon76.223.80.0/20}
NS	`hidden-master.yahoo.com` ⭐
		A	68.180.131.16^{🇺🇸 Yahoo68.180.131.0/24}
			PTR	`ns1.yahoo.com`
NS	`1ns.yahoo.com`
		A	2001:4998:c:fe2f:726f:636b:6f:6e0a^{🇺🇸 Yahoo2001:4998:c::/48}
			PTR	`1ns.yahoo.com`
		A	74.6.35.130^{🇺🇸 Yahoo74.6.32.0/19}
			PTR	`1ns.yahoo.com`
NS	`2ns.yahoo.com`
		A	2001:4998:58:fe2c:726f:636b:6f:6e0a^{🇺🇸 Yahoo2001:4998:58::/48}
			PTR	`2ns.yahoo.com`
		A	98.139.24.68^{🇺🇸 Yahoo98.139.24.0/21}
			PTR	`2ns.yahoo.com`
SOA	`hidden-master.yahoo.com`hostmaster@yahoo-inc.com 2024-03-08 #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

Subdomains

imap4.yah00.com

www.yah00.com

smtp.yah00.com

secureimap.yah00.com

tw.yah00.com

login.yah00.com

mail.yah00.com

imap.yah00.com

Same first word

yah00.com

yah00.de

yah00.org

yah00.com.tw

yah00.nl

yah00.net

yah00.com.cn

yah00.info

yah00.cn

yah00.fr

DNS History

27 records (5 active, 22 former)

●NS1ns.yahoo.com2026-02-16 → 2026-03-11 · 3 obs

○ 2019-10-17 11:36:38
● 2026-02-16 04:57:28
● 2026-03-11 18:02:22

●NS2ns.yahoo.com2026-02-16 → 2026-03-11 · 3 obs

○ 2019-10-17 11:36:38
● 2026-02-16 04:57:28
● 2026-03-11 18:02:22

●NShidden-master.yahoo.com2015-07-08 → 2026-03-11 · 2 obs

● 2015-07-08 22:51:24
● 2026-03-11 18:02:22

○NSns1.yahoo.com2015-07-08 → 2019-10-17 · 4 obs

● 2015-07-08 22:51:24
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○NSns2.yahoo.com2015-07-08 → 2019-10-17 · 4 obs

● 2015-07-08 22:51:24
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○NSns3.yahoo.com2015-07-08 → 2019-10-17 · 4 obs

● 2015-07-08 22:51:24
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○NSns4.yahoo.com2015-07-08 → 2019-10-17 · 4 obs

● 2015-07-08 22:51:24
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○NSns5.yahoo.com2015-07-08 → 2019-10-17 · 4 obs

● 2015-07-08 22:51:24
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○MX(root)2015-07-08 → 2026-02-17 · 4 obs

● 2015-07-08 22:51:24
● 2026-02-17 04:57:20
○ 2026-02-17 10:56:06
○ 2026-03-11 18:02:22

○A106.10.248.1512019-08-31 → 2019-10-17 · 5 obs

○ 2019-05-03 01:09:44
● 2019-08-31 02:19:08
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○A124.108.115.1012019-08-31 → 2019-10-17 · 5 obs

○ 2019-05-03 01:09:44
● 2019-08-31 02:19:08
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

●A13.248.158.72026-02-16 → 2026-03-11 · 3 obs

○ 2019-10-17 11:36:38
● 2026-02-16 04:57:28
● 2026-03-11 18:02:22

○A188.125.73.1082015-07-08 → 2016-11-14 · 4 obs

● 2015-07-08 22:51:24
● 2016-11-14 11:03:12
○ 2016-12-09 10:14:08
○ 2026-03-11 18:02:22

○A206.190.42.1772016-12-09 → 2018-01-02 · 5 obs

○ 2016-11-14 11:03:12
● 2016-12-09 10:14:08
● 2018-01-02 17:11:26
○ 2018-02-12 15:50:02
○ 2026-03-11 18:02:22

○A212.82.100.1512019-08-31 → 2019-10-17 · 5 obs

○ 2019-05-03 01:09:44
● 2019-08-31 02:19:08
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○A217.12.15.372016-12-09 → 2018-01-02 · 5 obs

○ 2016-11-14 11:03:12
● 2016-12-09 10:14:08
● 2018-01-02 17:11:26
○ 2018-02-12 15:50:02
○ 2026-03-11 18:02:22

○A72.30.203.42016-12-09 → 2018-01-02 · 5 obs

○ 2016-11-14 11:03:12
● 2016-12-09 10:14:08
● 2018-01-02 17:11:26
○ 2018-02-12 15:50:02
○ 2026-03-11 18:02:22

○A74.6.136.1512019-08-31 → 2019-10-17 · 5 obs

○ 2019-05-03 01:09:44
● 2019-08-31 02:19:08
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○A74.6.144.1372018-02-12 → 2019-05-03 · 5 obs

○ 2018-01-02 17:11:26
● 2018-02-12 15:50:02
● 2019-05-03 01:09:44
○ 2019-08-31 02:19:08
○ 2026-03-11 18:02:22

○A74.6.50.1502015-07-08 → 2016-11-14 · 4 obs

● 2015-07-08 22:51:24
● 2016-11-14 11:03:12
○ 2016-12-09 10:14:08
○ 2026-03-11 18:02:22

●A76.223.84.1922026-02-16 → 2026-03-11 · 3 obs

○ 2019-10-17 11:36:38
● 2026-02-16 04:57:28
● 2026-03-11 18:02:22

○A77.238.184.1502015-07-08 → 2016-11-14 · 4 obs

● 2015-07-08 22:51:24
● 2016-11-14 11:03:12
○ 2016-12-09 10:14:08
○ 2026-03-11 18:02:22

○A98.136.101.1752018-02-12 → 2019-05-03 · 5 obs

○ 2018-01-02 17:11:26
● 2018-02-12 15:50:02
● 2019-05-03 01:09:44
○ 2019-08-31 02:19:08
○ 2026-03-11 18:02:22

○A98.136.103.242019-08-31 → 2019-10-17 · 5 obs

○ 2019-05-03 01:09:44
● 2019-08-31 02:19:08
● 2019-10-17 11:36:38
○ 2026-02-16 04:57:28
○ 2026-03-11 18:02:22

○A98.136.96.1402018-02-12 → 2019-05-03 · 5 obs

○ 2018-01-02 17:11:26
● 2018-02-12 15:50:02
● 2019-05-03 01:09:44
○ 2019-08-31 02:19:08
○ 2026-03-11 18:02:22

○A98.137.236.1502015-07-08 → 2016-11-14 · 4 obs

● 2015-07-08 22:51:24
● 2016-11-14 11:03:12
○ 2016-12-09 10:14:08
○ 2026-03-11 18:02:22

○A98.138.79.552016-12-09 → 2018-01-02 · 5 obs

○ 2016-11-14 11:03:12
● 2016-12-09 10:14:08
● 2018-01-02 17:11:26
○ 2018-02-12 15:50:02
○ 2026-03-11 18:02:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
yah00.com	1ns.yahoo.com, 2ns.yahoo.com	4 records

✅ Authoritative Response

Server: 74.6.35.130

NS records: 1ns.yahoo.com, 2ns.yahoo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yah00.com (unsigned zone)

⏱️ Timing

Total: 1570ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.84.192, 13.248.158.7`
NS	2	`1ns.yahoo.com, 2ns.yahoo.com`
MX	1	`. (pri: 0)`
SOA	1	`hidden-master.yahoo.com hostmaster.yahoo`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (1ns.yahoo.com, 1ns.yahoo.com, 2ns.yahoo.com...)

Analysis

Hierarchy

The parent of imap4.yah00.com, www.yah00.com, smtp.yah00.com, secureimap.yah00.com, tw.yah00.com and a few other host names is yah00.com.

IP Addresses

yah00.com resolves to two IP numbers: 13.248.158.7 and 76.223.84.192.

Other host names, for instance ayhooo.com, localyahoo.us, mynetscape.net, cruzyahoo.com and aolmoney.com share IP numbers with yah00.com.

Name Servers

yah00.com delegates to three name servers: 1ns.yahoo.com, 2ns.yahoo.com and hidden-master.yahoo.com.

yah00.com shares some name servers with other domains, for example yahoo.ag, adserving.name, yahoomaiil.com, switch2aol.com and overture.fm.

These name servers are commonly used with ns1.yahoo.com, ns2.yahoo.com, ns3.yahoo.com, ns4.yahoo.com and ns5.yahoo.com.

Host names with two IP numbers:

1ns.yahoo.com points to 2001:4998:c:fe2f:726f:636b:6f:6e0a and 74.6.35.130.

2ns.yahoo.com points to 2001:4998:58:fe2c:726f:636b:6f:6e0a and 98.139.24.68.

Host names with one IP number:

hidden-master.yahoo.com points to 68.180.131.16.

yah00.com - robtex.com

yah00.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`yah00.com`

`com`