`dns2.update.com.tw`

DNSSEC	⚠️ Not signed
A	218.161.53.133^{🇹🇼 HiNet218.161.0.0/17}
		PTR	`218-161-53-133.hinet-ip.hinet.net`

`update.com.tw`

	DNSSEC	⚠️ Not signed
	A	218.161.53.133^{🇹🇼 HiNet218.161.0.0/17}
	NS	`dns1.update.com.tw` ⭐
	NS	`dns2.update.com.tw`
	MX	`mxa.vmail.com.tw` ⭐
	SOA	`dns1.update.com.tw`service@update.com.tw serial=1034302900

NS for

update.com.tw

Same first word

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DNS History

2 records (1 active, 1 former)

○A122.116.221.2272015-06-25 → 2016-02-15 · 4 obs

● 2015-06-25 18:55:24
● 2016-02-15 06:06:06
○ 2026-03-26 02:09:00
○ 2026-03-27 07:51:12

●A218.161.53.1332026-03-26 → 2026-03-27 · 3 obs

○ 2016-02-15 06:06:06
● 2026-03-26 02:09:00
● 2026-03-27 07:51:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tw	a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw...	-
update.com.tw	dns1.update.com.tw, dns2.update.com.tw	2 records

✅ Authoritative Response

Server:218.161.53.133

NS records: dns1.update.com.tw, dns2.update.com.tw

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for update.com.tw (unsigned zone)

⏱️ Timing

Total: 1098ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`218.161.53.133`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (dns2.update.com.tw, dns1.update.com.tw)

Analysis

Name Server Role

dns2.update.com.tw serves as a name server for update.com.tw.

Together with dns2.update.com.tw, dns1.update.com.tw is commonly used as a name server.

IP Addresses

dns2.update.com.tw resolves to one IP number: 218.161.53.133.

other host names including ieee.com.tw, thisis.com.tw, tvb.com.tw, dns8.vmail.com.tw and dns1.twope.tw share IP numbers with dns2.update.com.tw.

dns2.update.com.tw - robtex.com