calsonchina.com - robtex.com
calsonchina.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.181.195.68🇭🇰 HKCIX-AS-AP202.181.195.0/24 Route Object for 202.181.195.0/24 | ||||||
| PTR | mail.calsonchina.com | ||||||
| NS | dna.cslgroup.com ⭐ | ||||||
| A | 202.181.195.72🇭🇰 HKCIX-AS-AP202.181.195.0/24 Route Object for 202.181.195.0/24 | ||||||
| PTR | joybridge.com | ||||||
| PTR | mail.joybridge.com | ||||||
| PTR | oti.com.hk | ||||||
| PTR | mail.oti.com.hk | ||||||
| NS | tweety.cslgroup.com | ||||||
| A | 202.181.195.71🇭🇰 HKCIX-AS-AP202.181.195.0/24 Route Object for 202.181.195.0/24 | ||||||
| PTR | sylvestor.cslgroup.com | ||||||
| MX | mail.calsonchina.com ⭐ | ||||||
| A | 202.181.195.68🇭🇰 HKCIX-AS-AP202.181.195.0/24 Route Object for 202.181.195.0/24 | ||||||
| PTR | mail.calsonchina.com | ||||||
| TXT | v=spf1 ip4:202.181.195.68/24 include:mail.calsonchina.com ~all | ||||||
| SOA | dna.cslgroup.comroot@cslgroup.com 2026-05-01 #1 | ||||||
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=1778336556 | ||||||
Subdomains
mail.calsonchina.com |
Same first word
calsonchina.com |
DNS History
4 records (4 active, 0 former)
●NSdna.cslgroup.com2015-08-08 → 2026-05-09 · 2 obs
● 2026-05-09 14:38:38
●NStweety.cslgroup.com2015-08-08 → 2026-05-09 · 2 obs
● 2026-05-09 14:38:38
●MXmail.calsonchina.com2015-08-08 → 2026-05-09 · 2 obs
● 2026-05-09 14:38:38
●A202.181.195.682015-08-08 → 2026-05-09 · 2 obs
● 2026-05-09 14:38:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net... | - |
| calsonchina.com | dna.cslgroup.com, tweety.cslgroup.com | 2 records |
✅ Authoritative Response
Server:202.181.195.71
NS records: dna.cslgroup.com, tweety.cslgroup.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for calsonchina.com (unsigned zone)
⏱️ Timing
Total: 555ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.181.195.68 |
| NS | 2 | dna.cslgroup.com, tweety.cslgroup.com |
| MX | 1 | mail.calsonchina.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:202.181.195.68/24 include:mai |
| SOA | 1 | dna.cslgroup.com root.cslgroup.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dna.cslgroup.com, tweety.cslgroup.com)
Analysis
Hierarchy
calsonchina.com is the parent of mail.calsonchina.com.
IP Addresses
calsonchina.com points to a single IP number: 202.181.195.68.
Other host names, for instance mail.calsonchina.com, share IP numbers with calsonchina.com.
Name Servers
calsonchina.com is delegated to two name servers: dna.cslgroup.com and tweety.cslgroup.com.
calsonchina.com shares the same name server setup as other domains, for example wahfunglabel.com, oti.com.hk, goodexcel.com.hk, ia.com.hk and brunswick.com.hk.
Host names with one IP number:
The host dna.cslgroup.com points to 202.181.195.72 and the host tweety.cslgroup.com points to 202.181.195.71.
Mail Servers
calsonchina.com is handled by a single mail server, mail.calsonchina.com.
Host name mail.calsonchina.com points to IP address 202.181.195.68.