`mail.john-young.com`

DNSSEC	⚠️ Not signed
A	61.220.229.133^{🇹🇼 HiNet61.220.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
		PTR	`61-220-229-133.hinet-ip.hinet.net`

`john-young.com`

	DNSSEC	⚠️ Not signed
	A	103.17.9.196^{🇹🇼 YUANJHEN-TW103.17.8.0/23 Taiwan Network Information Center 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist.}
	NS	`dns1.john-young.com` ⭐
	NS	`dns.john-young.com`
	MX	`mail.john-young.com` ⭐
	SOA	`dns.john-young.com`root@localhost 2015-12-30 #19

MX for

john-young.com

Same first word

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DNS History

4 records (1 active, 3 former)

○A125.227.17.1462016-07-11 → 2016-12-27 · 5 obs

○ 2016-03-19 09:34:08
● 2016-07-11 01:15:14
● 2016-12-27 10:37:50
○ 2026-02-16 04:31:08
○ 2026-04-12 07:25:40

○A59.120.32.192015-06-24 → 2015-11-07 · 4 obs

● 2015-06-24 23:16:16
● 2015-11-07 06:45:24
○ 2016-03-19 09:34:08
○ 2026-04-12 07:25:40

○A61.219.80.702016-03-19 → 2016-03-19 · 4 obs

○ 2015-11-07 06:45:24
● 2016-03-19 09:34:08
○ 2016-07-11 01:15:14
○ 2026-04-12 07:25:40

●A61.220.229.1332026-02-16 → 2026-04-12 · 3 obs

○ 2016-12-27 10:37:50
● 2026-02-16 04:31:08
● 2026-04-12 07:25:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
john-young.com	dns.john-young.com, dns1.john-young.com	2 records

✅ Authoritative Response

Server:61.219.80.68

NS records: dns.john-young.com, dns1.john-young.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for john-young.com (unsigned zone)

⏱️ Timing

Total: 513ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`61.220.229.133`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (dns.john-young.com, dns1.john-young.com)

Analysis

Mail Server Role

mail.john-young.com is the mail server for john-young.com.

IP Addresses

mail.john-young.com resolves to one IP number: 61.220.229.133.

Other host names such as mail.john-young.com.tw and 61-220-229-133.hinet-ip.hinet.net share IP numbers with mail.john-young.com.

mail.john-young.com - robtex.com