`u777t.com`

DNSSEC	⚠️ Not signed
A	220.228.6.144^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
NS	`dns1.f1.com.tw` ⭐ ⚠️ Not in parent delegation
		A	218.32.213.234^{🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd.}
			PTR	`sp234.f1.com.tw`
NS	`dns2.f1.com.tw` ⚠️ Not in parent delegation
		A	220.228.6.17^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
NS	`ns1.icstock.com.tw` ⚠️ Not in zone NS records
		A	218.32.213.228^{🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd.}
			PTR	`sp228.f1.com.tw`
NS	`ns2.icstock.com.tw` ⚠️ Not in zone NS records
		A	218.32.210.72^{🇹🇼 NCIC-TW218.32.210.0/24 New Century InfoComm Tech Co., Ltd.}
			PTR	`sp72.f1.com.tw`
NS	`sp234.f1.com.tw` ⚠️ Not in zone NS records
		A	218.32.213.234^{🇹🇼 NCIC-TW218.32.192.0/19 New Century InfoComm Tech Co., Ltd.}
			PTR	`sp234.f1.com.tw`
MX	`u777t.com` ⭐
		A	220.228.6.144^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
MX	`www.u777t.com`⁽¹⁴⁾
		A	220.228.6.144^{🇹🇼 NCIC-TW220.228.0.0/19 New Century InfoComm Tech Co., Ltd.}
SOA	`dns1.f1.com.tw`ohgo@ms23.hinet.net 2000-11-01 #8

`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=1774475107

MX for

u777t.com

Subdomains

www.u777t.com

Same first word

u777t.com

DNS History

9 records (8 active, 1 former)

●NSdns1.f1.com.tw2015-08-17 → 2026-03-25 · 2 obs

● 2015-08-17 02:13:32
● 2026-03-25 21:48:14

●NSdns2.f1.com.tw2015-08-17 → 2026-03-25 · 2 obs

● 2015-08-17 02:13:32
● 2026-03-25 21:48:14

●NSns1.icstock.com.tw2026-02-23 → 2026-03-25 · 3 obs

○ 2015-08-17 02:13:32
● 2026-02-23 15:26:22
● 2026-03-25 21:48:14

●NSns2.icstock.com.tw2026-02-23 → 2026-03-25 · 3 obs

○ 2015-08-17 02:13:32
● 2026-02-23 15:26:22
● 2026-03-25 21:48:14

●NSsp234.f1.com.tw2026-02-23 → 2026-03-25 · 3 obs

○ 2015-08-17 02:13:32
● 2026-02-23 15:26:22
● 2026-03-25 21:48:14

●MXu777t.com2015-08-17 → 2026-03-25 · 2 obs

● 2015-08-17 02:13:32
● 2026-03-25 21:48:14

●MXwww.u777t.com2015-08-17 → 2026-03-25 · 2 obs

● 2015-08-17 02:13:32
● 2026-03-25 21:48:14

●A220.228.6.1442018-10-06 → 2026-03-25 · 3 obs

○ 2016-12-30 04:25:12
● 2018-10-06 20:16:38
● 2026-03-25 21:48:14

○A220.228.6.872015-08-17 → 2016-12-30 · 4 obs

● 2015-08-17 02:13:32
● 2016-12-30 04:25:12
○ 2018-10-06 20:16:38
○ 2026-03-25 21:48:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net...	-
u777t.com	ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw	-

✅ Authoritative Response

Server:218.32.213.234

NS records: ns1.icstock.com.tw, ns2.icstock.com.tw, sp234.f1.com.tw

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for u777t.com (unsigned zone)

⏱️ Timing

Total: 2361ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`220.228.6.144`
NS	2	`dns1.f1.com.tw, dns2.f1.com.tw`
MX	2	`u777t.com (pri: 10), www.u777t.com (pri: 14)`
SOA	1	`dns1.f1.com.tw ohgo.ms23.hinet.net`

Analysis

Hierarchy

u777t.com is the parent of www.u777t.com.

Mail Server Role

For u777t.com, the mail server is u777t.com.

www.u777t.com is a mail server commonly used with u777t.com.

IP Addresses

u777t.com resolves to one IP number: 220.228.6.144.

other host names including mx.kwkad.com, hilive.buzz, www.u777t.com, www.qwer173.com and 85st.xyz share IP numbers with u777t.com.

Name Servers

u777t.com is delegated to five name servers: dns1.f1.com.tw, dns2.f1.com.tw, sp234.f1.com.tw, ns1.icstock.com.tw and ns2.icstock.com.tw.

u777t.com at least partially shares name servers with other domains, for instance hosen.com.tw, kiss-(0x736578)y.com, ry40.com, hot686.com and x563.com.