`mx1.justgood.com.tw`

DNSSEC	⚠️ Not signed
A	220.130.245.227^{🇹🇼 HiNet220.130.0.0/16}
		PTR	`justgood.com.tw`
		PTR	`mail.svu.com.tw`

`justgood.com.tw`

	DNSSEC	⚠️ Not signed
	A	125.229.116.188^{🇹🇼 HiNet125.229.0.0/16 descr: (HiNet) Chunghwa Telecom Co., Ltd.}
	NS	`ns.justgood.com.tw` ⭐
	NS	`dns22.justgood.com.tw` ⚠️ Not in zone NS records
	NS	`justgood.com.tw` ⚠️ Not in zone NS records
	NS	`ns2.justgood.com.tw`
	MX	`mx1.justgood.com.tw` ⭐
	MX	`mx2.justgood.com.tw` ⭐
	TXT	`v=spf1 ip4:220.130.245.227 -all`
	SOA	`ns2.justgood.com.tw`justin0526@gmail.com serial=48

MX for

justgood.com.tw

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DNS History

1 record (1 active, 0 former)

●A220.130.245.2272026-02-21 → 2026-05-01 · 2 obs

● 2026-02-21 01:55:10
● 2026-05-01 21:46:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com.tw	anytld.apnic.net, c.twnic.net.tw, h.dns.tw, a.twnic.net.tw...	-
justgood.com.tw	dns22.justgood.com.tw, ns.justgood.com.tw, justgood.com.tw	3 records

✅ Authoritative Response

Server:106.104.160.107

NS records: dns22.justgood.com.tw, ns.justgood.com.tw, justgood.com.tw

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for com.tw (unsigned zone)

⏱️ Timing

Total: 3761ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`220.130.245.227`

📌 Glue Records Collected

Total: 3

In-bailiwick: 3 (justgood.com.tw, dns22.justgood.com.tw, ns.justgood.com.tw)

Analysis

Mail Server Role

mx1.justgood.com.tw functions as a mail server for justgood.com.tw.

mx2.justgood.com.tw often serves as a mail server in conjunction with mx1.justgood.com.tw.

IP Addresses

mx1.justgood.com.tw points to IP number: 220.130.245.227.

Other host names, for instance mail.svu.com.tw and mx2.justgood.com.tw, share IP numbers with mx1.justgood.com.tw.

mx1.justgood.com.tw - robtex.com