`compuscreen.com.hk`

DNSSEC	⚠️ Not signed
NS	`ns1.udomain.com` ⭐ ⚠️ Not in parent delegation
		A	45.121.194.9^{🇭🇰 UDOMAIN-AS-AP45.121.194.0/24 UDomain Web Hosting Company Limited Unit A-D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon.}
NS	`ns1.udomain.net` ⚠️ Not in zone NS records
		A	45.121.198.8^{🇭🇰 UDOMAIN-AS-AP45.121.198.0/24 Web Host Ltd Unit A-D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon.}
NS	`ns2.udomain.com` ⚠️ Not in parent delegation
		A	45.121.198.9^{🇭🇰 UDOMAIN-AS-AP45.121.198.0/24 Web Host Ltd Unit A-D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon.}
NS	`ns2.udomain.net` ⚠️ Not in zone NS records
		A	45.121.194.8^{🇭🇰 UDOMAIN-AS-AP45.121.194.0/24 UDomain Web Hosting Company Limited Unit A-D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon.}
MX	`mail.compuscreen.com.hk` ⭐
		A	210.3.150.197^{🇭🇰 HUTCHISON-AS-AP210.3.128.0/19 HGC Global Communications Limited 9/F Hutchison Telecom Tower 99 Cheung Fai Road}
			PTR	`centrallaboratory.hk`
			PTR	`v-care.hk`
			PTR	`amdl.com.hk`
			PTR	`centrallab.com.hk`
			PTR	`compuscreen.com.hk`
			PTR	`phclab.com.hk`
			PTR	`pms.com.hk`
			PTR	`mail.v-care.hk`
			PTR	`mail.amdl.com.hk`
			PTR	`phcmail01.phclab.com.hk`
MX	`avgate.ziptexhk.com`⁽²⁰⁰⁾
		A	218.255.3.228^{🇭🇰 WTT218.255.0.0/19 Wharf T&T IP}
			PTR	`avgate01.ziptexhk.com`
SOA	`ns1.udomain.com`ns2@udomain.com 2025-12-02 #12

`com.hk`

	DNSSEC	⚠️ Not signed
	NS	`ns3.hkirc.net.hk` ⭐
	NS	`c.hkirc.net.hk` ⚠️ Not in parent delegation
	NS	`d.hkirc.net.hk` ⚠️ Not in parent delegation
	NS	`m.hkirc.net.hk` ⚠️ Not in parent delegation
	NS	`t.hkirc.net.hk` ⚠️ Not in parent delegation
	NS	`u.hkirc.net.hk` ⚠️ Not in parent delegation
	NS	`v.hkirc.net.hk` ⚠️ Not in parent delegation
	NS	`x.hkirc.net.hk` ⚠️ Not in parent delegation
	NS	`y.hkirc.net.hk` ⚠️ Not in parent delegation
	NS	`z.hkirc.net.hk` ⚠️ Not in parent delegation
	SOA	`ns3.hkirc.net.hk`hostmaster@hkirc.net.hk serial=2073530565

WOT: SAFE (76/100)

PTR for

197.150.3.210.in-addr.arpa

164.166.5.210.in-addr.arpa

Subdomains

mail.compuscreen.com.hk

Same first word

compuscreen.com.hk

DNS History

6 records (6 active, 0 former)

●NSns1.udomain.com2026-02-27 → 2026-03-26 · 2 obs

● 2026-02-27 11:04:10
● 2026-03-26 03:45:24

●NSns1.udomain.net2026-02-27 → 2026-03-26 · 2 obs

● 2026-02-27 11:04:10
● 2026-03-26 03:45:24

●NSns2.udomain.com2026-02-27 → 2026-03-26 · 2 obs

● 2026-02-27 11:04:10
● 2026-03-26 03:45:24

●NSns2.udomain.net2026-02-27 → 2026-03-26 · 2 obs

● 2026-02-27 11:04:10
● 2026-03-26 03:45:24

●MXavgate.ziptexhk.com2026-02-27 → 2026-03-26 · 2 obs

● 2026-02-27 11:04:10
● 2026-03-26 03:45:24

●MXmail.compuscreen.com.hk2026-02-27 → 2026-03-26 · 2 obs

● 2026-02-27 11:04:10
● 2026-03-26 03:45:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
hk	c.hkirc.net.hk, d.hkirc.net.hk, m.hkirc.net.hk, t.hkirc.net.hk...	18 records
compuscreen.com.hk	ns2.udomain.net, ns1.udomain.net	-

✅ Authoritative Response

Server:45.121.194.8

NS records: ns2.udomain.net, ns1.udomain.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for compuscreen.com.hk (unsigned zone)

⏱️ Timing

Total: 3718ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.udomain.com, ns2.udomain.com`
MX	2	`avgate.ziptexhk.com (pri: 200), mail.compuscreen.com.hk (pri: 100)`
SOA	1	`ns1.udomain.com ns2.udomain.com`

📌 Glue Records Collected

Total: 18

In-bailiwick: 18 (c.hkirc.net.hk, d.hkirc.net.hk, m.hkirc.net.hk...)

Analysis

Hierarchy

The parent of mail.compuscreen.com.hk is compuscreen.com.hk.

Name Servers

compuscreen.com.hk is delegated to four name servers: ns1.udomain.com, ns2.udomain.com, ns1.udomain.net and ns2.udomain.net.

compuscreen.com.hk shares name servers with other domains at least partially, for instance myballoon.com.hk, tsfec.com.hk, cheukyin.hk, lsk.hk and wpedu.org.

Host names with a single IP:

ns1.udomain.com points to 45.121.194.9.

ns2.udomain.com points to 45.121.198.9.

ns1.udomain.net points to 45.121.198.8.

ns2.udomain.net points to 45.121.194.8.

Mail Servers

compuscreen.com.hk is handled by two mail servers: avgate.ziptexhk.com and mail.compuscreen.com.hk.

compuscreen.com.hk shares at least some mail servers with other domains, for instance cathaygames.com.

These mail servers are often used with the mail servers mail.cathaygames.com.

Host names with one IP number:

avgate.ziptexhk.com points to: 218.255.3.228.

mail.compuscreen.com.hk points to: 210.3.150.197.

compuscreen.com.hk - robtex.com