mail.caohua.net - robtex.com

mail.caohua.net

DNSSEC⚠️ Not signed
A202.102.86.238🇨🇳 CHINATELECOM-JIANGSU-NANJING-IDC202.102.80.0/20 CTJS NJ-IDC
PTRmail1238.4cun.com

caohua.net

DNSSEC⚠️ Not signed
A47.88.4.46🇺🇸 Alibaba-Cloud47.88.0.0/18 Alibaba Cloud
NSdns1.4cun.com ⭐
NSdns.4cun.com ⚠️ Not in zone NS records
NSdns2.4cun.com ⚠️ Not in zone NS records
MXmail.caohua.net ⭐
SOAdns.4cun.comadmin@caohua.net serial=1772526759

MX for

caohua.net

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A202.102.86.238222.73.4.178
●A202.102.86.2382026-03-04 → 2026-04-24 · 3 obs
○ 2016-05-07 03:36:00
● 2026-03-04 13:22:18
● 2026-04-24 03:47:06
○A222.73.4.1782015-07-19 → 2016-05-07 · 4 obs
● 2015-07-19 16:22:28
● 2016-05-07 03:36:00
○ 2026-03-04 13:22:18
○ 2026-04-24 03:47:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neta.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
caohua.netdns1.4cun.com, dns2.4cun.com-

✅ Authoritative Response

Server:219.138.102.210

NS records: dns1.4cun.com, dns2.4cun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for caohua.net (unsigned zone)

⏱️ Timing

Total: 1387ms | Queries: -

📄 Records

TypeCountSample Data
A1202.102.86.238

Analysis

Mail Server Role

The mail server for caohua.net is mail.caohua.net.

IP Addresses

mail.caohua.net points to a single IP number: 202.102.86.238.

Other host names, for instance mail2.4cun.com, mail.sinepower.cc, mail.jjgz.com, mail1238.4cun.com and mail.szdchem.com share IP numbers with mail.caohua.net.