nbt-hk.com - robtex.com

nbt-hk.com

DNSSEC⚠️ Not signed
A122.10.113.53🇭🇰 Overcasts-AS-AP122.10.112.0/22 Proxy-registered route object
NSns1.hk.net ⭐ ⚠️ Not in parent delegation
A2403:2c00:ffff:21::2🇭🇰 ASN-LINKAGE2403:2c00::/32 CPCNET Hong Kong Limited 20/F Lincoln House Taikoo Place 979 King's Road Hong Kong
A152.101.179.98🇭🇰 ASN-LINKAGE152.101.179.0/24 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan
PTRns1.hk.net
NSns1.hk.linkage.net ⚠️ Not in zone NS records
A2403:2c00:ffff:21::2🇭🇰 ASN-LINKAGE2403:2c00::/32 CPCNET Hong Kong Limited 20/F Lincoln House Taikoo Place 979 King's Road Hong Kong
A152.101.179.98🇭🇰 ASN-LINKAGE152.101.179.0/24 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan
PTRns1.hk.net
NSns2.hk.linkage.net ⚠️ Not in zone NS records
A2403:2c00:ffff:22::2🇭🇰 ASN-LINKAGE2403:2c00::/32 CPCNET Hong Kong Limited 20/F Lincoln House Taikoo Place 979 King's Road Hong Kong
A152.101.179.102🇭🇰 ASN-LINKAGE152.101.179.0/24 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan
PTRns2.hk.net
NSns2.hk.net ⚠️ Not in parent delegation
A2403:2c00:ffff:22::2🇭🇰 ASN-LINKAGE2403:2c00::/32 CPCNET Hong Kong Limited 20/F Lincoln House Taikoo Place 979 King's Road Hong Kong
A152.101.179.102🇭🇰 ASN-LINKAGE152.101.179.0/24 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan
PTRns2.hk.net
MXnbthk-com0i.mail.protection.outlook.com ⭐
A2a01:111:f403:cc09::🇸🇬 Microsoft2a01:111:f000::/36
PTRmail-sg2pr03cu00500.inbound.protection.outlook.com
A2a01:111:f403:cc1a::8🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tydpr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:cc1f::4🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os8pr02cu00104.inbound.protection.outlook.com
A52.101.124.117🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tydpr03cu00105.inbound.protection.outlook.com
A52.101.137.0🇸🇬 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sg2pr03cu00500.inbound.protection.outlook.com
A52.101.157.80🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os8pr02cu00100.inbound.protection.outlook.com
MXmail.nbt-hk.com(10)
A152.101.102.60🇭🇰 ASN-LINKAGE152.101.0.0/17 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan
PTRpc060.tob-business.com
MXrelay.email.hk.net(100)
A2403:2c00:1::3:21🇭🇰 ASN-LINKAGE2403:2c00::/32 CPCNET Hong Kong Limited 20/F Lincoln House Taikoo Place 979 King's Road Hong Kong
PTRrelay1.hk.net
A2403:2c00:2:1::3🇭🇰 ASN-LINKAGE2403:2c00::/32 CPCNET Hong Kong Limited 20/F Lincoln House Taikoo Place 979 King's Road Hong Kong
A152.101.179.228🇭🇰 ASN-LINKAGE152.101.179.0/24 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan
PTRrelay2.hk.net
A202.76.4.35🇭🇰 ASN-LINKAGE202.76.4.0/24 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan
PTRrelay1.hk.net
TXTMS=ms12812721
TXTv=spf1 include:spf.protection.outlook.com -all
SOAns1.hk.nethostmaster@citictel-cpc.com 2016-08-20 #2

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778478231
WOT: SAFE (62/100)

Subdomains

www.nbt-hk.com

Same first word

nbt-hk.com

DNS History

9 records (8 active, 1 former)

2008201020122014201620182020202220242026NSns1.hk.linkage.netns1.hk.netns2.hk.linkage.netns2.hk.netMXmail.nbt-hk.comnbthk-com0i.mail.protection.outlook.comrelay.email.hk.netrelay.hk.linkage.netA122.10.113.53
●NSns1.hk.linkage.net2026-02-20 → 2026-05-11 · 3 obs
○ 2007-10-02 02:50:26
● 2026-02-20 17:55:50
● 2026-05-11 06:12:20
●NSns1.hk.net2007-10-02 → 2026-05-11 · 2 obs
● 2007-10-02 02:50:26
● 2026-05-11 06:12:20
●NSns2.hk.linkage.net2026-02-20 → 2026-05-11 · 3 obs
○ 2007-10-02 02:50:26
● 2026-02-20 17:55:50
● 2026-05-11 06:12:20
●NSns2.hk.net2007-10-02 → 2026-05-11 · 2 obs
● 2007-10-02 02:50:26
● 2026-05-11 06:12:20
●MXmail.nbt-hk.com2007-10-02 → 2026-05-11 · 2 obs
● 2007-10-02 02:50:26
● 2026-05-11 06:12:20
●MXnbthk-com0i.mail.protection.outlook.com2016-08-29 → 2026-05-11 · 3 obs
○ 2015-09-02 20:04:52
● 2016-08-29 07:10:22
● 2026-05-11 06:12:20
●MXrelay.email.hk.net2015-09-02 → 2026-05-11 · 3 obs
○ 2007-10-02 02:50:26
● 2015-09-02 20:04:52
● 2026-05-11 06:12:20
○MXrelay.hk.linkage.net2007-10-02 → 2007-10-02 · 3 obs
● 2007-10-02 02:50:26
○ 2015-09-02 20:04:52
○ 2026-05-11 06:12:20
●A122.10.113.532026-02-20 → 2026-05-11 · 2 obs
● 2026-02-20 17:55:50
● 2026-05-11 06:12:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net...-
nbt-hk.comns1.hk.linkage.net, ns2.hk.linkage.net-

✅ Authoritative Response

Server:152.101.179.102

NS records: ns1.hk.linkage.net, ns2.hk.linkage.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nbt-hk.com (unsigned zone)

⏱️ Timing

Total: 1257ms | Queries: -

📄 Records

TypeCountSample Data
A1122.10.113.53
NS2ns1.hk.net, ns2.hk.net
MX3mail.nbt-hk.com (pri: 10), relay.email.hk.net (pri: 100)...
TXT2MS=ms12812721, v=spf1 include:spf.protection.outlook.co
SOA1ns1.hk.net hostmaster.citictel-cpc.com

Analysis

Hierarchy

The parent of www.nbt-hk.com is nbt-hk.com.

IP Addresses

nbt-hk.com points to IP number: 122.10.113.53.

Other host names such as www.sctrade.com, chuanchiong.com.hk, ns3.10u.org, www.kachi.edu.hk and www.chelseawaterfront.com share IPs with nbt-hk.com.

Name Servers

nbt-hk.com is delegated to four name servers: ns1.hk.net, ns2.hk.net, ns1.hk.linkage.net and ns2.hk.linkage.net.

nbt-hk.com at least partially shares name servers with other domains, for instance 17.85.203.in-addr.arpa, apexmfg.com.hk, 78.184.210.in-addr.arpa, 18.184.210.in-addr.arpa and 0.101.152.in-addr.arpa.

these name servers are commonly used together with the name servers ns1.us.linkage.net, ns11.hk.net, ns12.hk.net, ns.glink.net.hk and earth.glink.net.hk.

Host names with two IPs:

ns1.hk.net points to 2403:2c00:ffff:21::2 and 152.101.179.98

ns2.hk.net points to 2403:2c00:ffff:22::2 and 152.101.179.102

ns1.hk.linkage.net points to 2403:2c00:ffff:21::2 and 152.101.179.98

ns2.hk.linkage.net points to 2403:2c00:ffff:22::2 and 152.101.179.102

Hosts pointing to 2403:2c00:ffff:21::2: ns1.hk.net and ns1.hk.linkage.net

Hosts pointing to 152.101.179.98: ns1.hk.net and ns1.hk.linkage.net

Hosts pointing to 2403:2c00:ffff:22::2: ns2.hk.net and ns2.hk.linkage.net

Hosts pointing to 152.101.179.102: ns2.hk.net and ns2.hk.linkage.net

Mail Servers

Three mail servers handle nbt-hk.com: mail.nbt-hk.com, relay.email.hk.net and nbthk-com0i.mail.protection.outlook.com.

nbt-hk.com shares at least partially some mail servers with other domains, including contempo.com.hk, contempo.com.cn, topsoft.com.hk, swire-group.com and rglutheran.org.hk.

these mail servers are commonly used with the mail servers mail03.email.hk.net, avsmx1.hk.net, avsmx2.hk.net, mailmx1.hk.net, mailmx2.hk.net, aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

Host names with six IP numbers: nbthk-com0i.mail.protection.outlook.com points to 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.

Host names with four IP numbers: relay.email.hk.net points to 2403:2c00:1::3:21, 2403:2c00:2:1::3, 152.101.179.228 and 202.76.4.35.

Host names with one IP number: mail.nbt-hk.com points to 152.101.102.60.