`jetlinkltd.com`

DNSSEC	⚠️ Not signed
NS	`ns1.udomain.com` ⭐
		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	`ns2.udomain.com`
		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.}
MX	`jetlinkltd-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc09::^{🇸🇬 Microsoft2a01:111:f000::/36}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::8^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tydpr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::4^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os8pr02cu00104.inbound.protection.outlook.com`
		A	52.101.124.117^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tydpr03cu00105.inbound.protection.outlook.com`
		A	52.101.137.0^{🇸🇬 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	52.101.157.80^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os8pr02cu00100.inbound.protection.outlook.com`
TXT	`MS=ms32216954`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns1.udomain.com`ns2@udomain.com 2024-12-30 #9

`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=1774620597

Same first word

jetlinkltd.com

DNS History

5 records (3 active, 2 former)

●NSns1.udomain.com2026-03-27 → 2026-03-27 · 1 obs

● 2026-03-27 14:17:48

●NSns2.udomain.com2026-03-27 → 2026-03-27 · 1 obs

● 2026-03-27 14:17:48

●MXjetlinkltd-com.mail.protection.outlook.com2026-03-27 → 2026-03-27 · 2 obs

○ 2015-10-10 04:23:50
● 2026-03-27 14:17:48

○MXmail10.dtlsystems.com2008-03-17 → 2008-03-17 · 3 obs

● 2008-03-17 01:51:12
○ 2015-10-10 04:23:50
○ 2026-03-27 14:17:48

○A65.19.184.2112008-03-17 → 2008-03-17 · 3 obs

● 2008-03-17 01:51:12
○ 2015-10-10 04:23:50
○ 2026-03-27 14:17:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net...	-
jetlinkltd.com	ns1.udomain.com, ns2.udomain.com	2 records

✅ Authoritative Response

Server:45.121.194.9

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jetlinkltd.com (unsigned zone)

⏱️ Timing

Total: 492ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns2.udomain.com, ns1.udomain.com`
MX	1	`jetlinkltd-com.mail.protection.outlook.c`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms32216954`
SOA	1	`ns1.udomain.com ns2.udomain.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.udomain.com, ns2.udomain.com)

Analysis

Name Servers

jetlinkltd.com is delegated to two name servers ns1.udomain.com and ns2.udomain.com.

jetlinkltd.com shares the same name server setup as other domains, for instance natarizu.com, tocad.com.hk, vxcon.hk, tecm.hk and amchk.com.

jetlinkltd.com at least partially shares name servers with other domains, for instance artsinfinite.com, homurice.com, lamode.com.hk and jakks.com.hk.

these name servers are often used together with ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.

Host names with one IP number:

ns1.udomain.com points to 45.121.194.9

ns2.udomain.com points to 45.121.198.9

Mail Servers

jetlinkltd.com is handled by a single mail server, jetlinkltd-com.mail.protection.outlook.com.

The host name jetlinkltd-com.mail.protection.outlook.com resolves to six IP numbers: 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.

jetlinkltd.com - robtex.com

jetlinkltd.com

com