coretechint.com - dns.ninja
coretechint.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 180.188.192.50🇭🇰 ISYSTEMTECH-HK180.188.192.0/24 i-System Technology Limited | ||||||
| NS | ns2.smartdotweb.com ⭐ | ||||||
| A | 165.84.180.194🇭🇰 HKBN165.84.180.0/24 Hong Kong Broadband Network Ltd 15/F Trans Asia Centre 18 Kin Hong Street | ||||||
| PTR | 165084180194.static.ctinets.com | ||||||
| NS | ns3.smartdotweb.com | ||||||
| A | 165.84.180.195🇭🇰 HKBN165.84.180.0/24 Hong Kong Broadband Network Ltd 15/F Trans Asia Centre 18 Kin Hong Street | ||||||
| PTR | 165084180195.static.ctinets.com | ||||||
| NS | ns4.smartdotweb.com | ||||||
| A | 118.140.252.242🇭🇰 HUTCHISON-AS-AP118.140.224.0/19 HGC Global Communications Limited 9/F Hutchison Telecom Tower 99 Cheung Fai Road | ||||||
| MX | mail2.coretechint.com ⭐ | ||||||
| A | 202.82.45.44🇭🇰 PCCW-IMSBIZ-Network202.82.0.0/18 PCCW - Hongkong | ||||||
| TXT | v=spf1 ip4:202.82.45.43 a -all | ||||||
| SOA | ns2.smartdotweb.comwebadmin@smartdotweb.com serial=1117178837 | ||||||
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.netnstld@verisign-grs.com serial=1784917302 | ||||||
Subdomains
Same first word
coretechint.com |
Similar names
DNS History
8 records (5 active, 3 former)
●NSns2.smartdotweb.com2015-06-01 → 2026-07-24 · 2 obs
● 2026-07-24 18:43:02
●NSns3.smartdotweb.com2015-06-01 → 2026-07-24 · 2 obs
● 2026-07-24 18:43:02
●NSns4.smartdotweb.com2019-02-18 → 2026-07-24 · 3 obs
● 2019-02-18 00:06:58
● 2026-07-24 18:43:02
○MXmail1.coretechint.com2015-06-01 → 2026-03-03 · 4 obs
● 2026-03-03 09:13:22
○ 2026-03-08 03:24:56
○ 2026-07-24 18:43:02
●MXmail2.coretechint.com2026-03-02 → 2026-07-24 · 3 obs
● 2026-03-02 07:18:28
● 2026-07-24 18:43:02
○A125.215.134.252015-06-01 → 2017-02-10 · 4 obs
● 2017-02-10 02:15:32
○ 2019-02-18 00:06:58
○ 2026-07-24 18:43:02
●A180.188.192.502026-03-02 → 2026-07-24 · 3 obs
● 2026-03-02 07:18:28
● 2026-07-24 18:43:02
○A202.82.45.432019-02-18 → 2019-02-18 · 4 obs
● 2019-02-18 00:06:58
○ 2026-03-02 07:18:28
○ 2026-07-24 18:43:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net... | - |
| coretechint.com | ns2.smartdotweb.com, ns3.smartdotweb.com, ns4.smartdotweb.com | 3 records |
✅ Authoritative Response
Server:165.84.180.194
NS records: ns2.smartdotweb.com, ns3.smartdotweb.com, ns4.smartdotweb.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coretechint.com (unsigned zone)
⏱️ Timing
Total: 831ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 180.188.192.50 |
| NS | 3 | ns3.smartdotweb.com, ns2.smartdotweb.com... |
| MX | 1 | mail2.coretechint.com (pri: 5) |
| TXT | 1 | v=spf1 ip4:202.82.45.43 a -all |
| SOA | 1 | ns2.smartdotweb.com webadmin.smartdotweb |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns2.smartdotweb.com, ns3.smartdotweb.com, ns4.smartdotweb.com)
Analysis
Hierarchy
coretechint.com sits above mail1.coretechint.com, mail.coretechint.com and mail2.coretechint.com in the domain hierarchy.
IP Addresses
coretechint.com has exactly one IP address — 180.188.192.50.
Further host names like barf.com.hk and artalcosmetic.com overlap in IP numbers with coretechint.com.
Name Servers
Three name servers are authoritative for coretechint.com: ns2.smartdotweb.com, ns3.smartdotweb.com and ns4.smartdotweb.com.
There is at least partial name server overlap between coretechint.com and other domains — mizuno.com.hk, cdshk.org, smartdotweb.com and two more among them.
These name servers frequently co-occur with the name servers ns2.dngbuttons.com and ns3.dngbuttons.com.
Three hostnames, one IP address apiece: ns2.smartdotweb.com resolves to 165.84.180.194, ns3.smartdotweb.com resolves to 165.84.180.195 and ns4.smartdotweb.com resolves to 118.140.252.242.
Mail Servers
coretechint.com uses one mail server — mail2.coretechint.com.
There is one IP number for mail2.coretechint.com: 202.82.45.44.