smtp.centfor.com - robtex.com

smtp.centfor.com

DNSSEC⚠️ Not signed
A218.28.136.201🇨🇳 CHINA169-Backbone218.28.0.0/15 CNC Group CHINA169 Henan Province Network

centfor.com

DNSSEC⚠️ Not signed
A123.60.220.165🇨🇳 HWCSNET123.60.208.0/20 Huawei Clouds Beijing Region
NSns11.xincache.com ⭐
NSns12.xincache.com
MXhzmx01.mxmail.netease.com ⭐
MXhzmx02.mxmail.netease.com(10)
TXTv=spf1 include:spf.163.com -all
TXTgoogle-site-verification=MkzdpMDonpMTnyTVgZa3x_79GbyYV9DL59gdTDZ0Mrs
SOAns11.xincache.comns12@xincache.com serial=1774504791

Same first word

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DNS History

2 records (1 active, 1 former)

201820192020202120222023202420252026A218.28.136.201218.28.136.199
○A218.28.136.1992017-08-12 → 2017-08-12 · 3 obs
● 2017-08-12 01:20:20
○ 2026-05-13 15:35:46
○ 2026-05-14 08:10:40
●A218.28.136.2012026-05-13 → 2026-05-14 · 3 obs
○ 2017-08-12 01:20:20
● 2026-05-13 15:35:46
● 2026-05-14 08:10:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
centfor.comns11.xincache.com, ns12.xincache.com12 records

✅ Authoritative Response

Server:1.12.0.1

NS records: ns11.xincache.com, ns12.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for centfor.com (unsigned zone)

⏱️ Timing

Total: 229ms | Queries: -

📄 Records

TypeCountSample Data
A1218.28.136.201

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns11.xincache.com, ns11.xincache.com, ns11.xincache.com...)

Analysis

IP Addresses

smtp.centfor.com resolves to one IP number: 218.28.136.201.