`mailfilter.twstudy.com`

DNSSEC	⚠️ Not signed
A	118.163.245.93^{🇹🇼 HiNet118.163.0.0/16}
		PTR	`mailfilter.twstudy.com`

`twstudy.com`

	DNSSEC	⚠️ Not signed
	A	211.20.205.238^{🇹🇼 HiNet211.20.0.0/16 (HiNet) Chunghwa Telecom Co., Ltd.}
	NS	`ns25.domaincontrol.com` ⭐
	NS	`ns26.domaincontrol.com`
	MX	`mail.twstudy.com` ⭐
	TXT	`v=spf1 a=mail.twstudy.com ip4:118.163.245.93 ~all`
	TXT	`facebook-domain-verification=in9qa1vhxjn2ti4s0hzkancdvywict`
	TXT	`facebook-domain-verification=m4wcv7vqet6tbp0pdv63txgjt4cgi8`
	TXT	`google-site-verification=7viqwogkicjyv1ee11aAByiY8JfJXJe4aZhmsOqZojo`
	SOA	`ns25.domaincontrol.com`dns@jomax.net 2024-02-27 #0

PTR for

93.245.163.118.in-addr.arpa

Previously MX for

twstudy.com

Same first word

Similar names

DNS History

2 records (1 active, 1 former)

●A118.163.245.932026-03-28 → 2026-03-30 · 3 obs

○ 2016-04-22 10:21:42
● 2026-03-28 14:18:58
● 2026-03-30 01:22:22

○A210.71.187.2122015-06-25 → 2016-04-22 · 4 obs

● 2015-06-25 15:32:36
● 2016-04-22 10:21:42
○ 2026-03-28 14:18:58
○ 2026-03-30 01:22:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
twstudy.com	ns25.domaincontrol.com, ns26.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.102.13

NS records: ns25.domaincontrol.com, ns26.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for twstudy.com (unsigned zone)

⏱️ Timing

Total: 76ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`118.163.245.93`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns25.domaincontrol.com, ns25.domaincontrol.com, ns26.domaincontrol.com...)

Analysis

IP Addresses

mailfilter.twstudy.com resolves to a single IP address: 118.163.245.93.

Other host names, for instance mail.twstudy.com, share IP numbers with mailfilter.twstudy.com.

mailfilter.twstudy.com - robtex.com