mail.ycfree.com - robtex.com

mail.ycfree.com

DNSSEC⚠️ Not signed
A222.73.4.178🇨🇳 SHANGHAITELECOM222.73.0.0/21 SHIDC
PTRmail.163ns.com.cn

ycfree.com

DNSSEC⚠️ Not signed
A218.30.64.194🇨🇳 CHINANET-BACKBONE218.30.0.0/15 China Telecom Network
NSdns.4cun.com ⭐
NSns1.4cun.com ⚠️ Not in zone NS records
NSns2.51dns.top ⚠️ Not in zone NS records
MXmx1.4cun.com ⭐
SOAdns.4cun.comadmin@ycfree.com serial=1772528610

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DNS History

1 record (1 active, 0 former)

20162017201820192020202120222023202420252026A222.73.4.178
●A222.73.4.1782015-08-20 → 2026-05-15 · 5 obs
● 2015-08-20 12:46:32
● 2026-02-27 11:30:00
○ 2026-04-20 07:46:12
● 2026-04-30 21:54:28
● 2026-05-15 07:45:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
ycfree.comns1.4cun.com, ns2.51dns.top2 records

✅ Authoritative Response

Server:61.172.183.78

NS records: ns1.4cun.com, ns2.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ycfree.com (unsigned zone)

⏱️ Timing

Total: 1269ms | Queries: -

📄 Records

TypeCountSample Data
A1222.73.4.178

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.4cun.com, ns1.4cun.com)

Analysis

IP Addresses

mail.ycfree.com points to a single IP address: 222.73.4.178.

Other host names such as mail.0huo.com, mail.163ns.com.cn, mail.smtserv.com, mail.sunyield.com and mail.jia-min.com share IPs with mail.ycfree.com.