mail.ryhson.com - robtex.com

mail.ryhson.com

CNAMEmail.263.net
DNSSEC⚠️ Not signed
A128.1.38.2🇺🇸 UCLOUD-1128.1.38.0/24 ZL-SIN-UCLOUD
PTRucloud-sg-smtp1.263.net

ryhson.com

CNAMEryhson.com.w.cdngslb.com
DNSSEC⚠️ Not signed
A8.25.82.225🇺🇸 Alibaba_Cloud_CDN8.25.82.0/24
A8.25.82.226🇺🇸 Alibaba_Cloud_CDN8.25.82.0/24
A8.38.121.191🇺🇸 Alibaba_Cloud_CDN8.38.121.0/24
A8.45.176.206🇺🇸 Alibaba_Cloud_CDN8.45.176.0/24
A8.45.176.207🇺🇸 Alibaba_Cloud_CDN8.45.176.0/24
A47.246.20.197🇺🇸 Alibaba_Cloud_CDN47.246.20.0/24 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US
A47.246.20.198🇺🇸 Alibaba_Cloud_CDN47.246.20.0/24 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US
A47.246.22.196🇺🇸 Alibaba_Cloud_CDN47.246.22.0/24 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US
A47.246.22.197🇺🇸 Alibaba_Cloud_CDN47.246.22.0/24 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US
A155.102.176.81🇺🇸 Alibaba_Cloud_CDN155.102.176.64/26
A163.181.60.204🇺🇸 Alibaba_Cloud_CDN163.181.60.0/24 Alibaba Cloud
A163.181.60.205🇺🇸 Alibaba_Cloud_CDN163.181.60.0/24 Alibaba Cloud
A163.181.60.206🇺🇸 Alibaba_Cloud_CDN163.181.60.0/24 Alibaba Cloud
A163.181.60.207🇺🇸 Alibaba_Cloud_CDN163.181.60.0/24 Alibaba Cloud
A163.181.60.208🇺🇸 Alibaba_Cloud_CDN163.181.60.0/24 Alibaba Cloud

Previously MX for

ryhson.com

Same first word

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mail.edu.bi
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DNS History

2 records (1 active, 1 former)

201820192020202120222023202420252026A185.85.204.235CNAMEmail.263.net
○A185.85.204.2352017-02-18 → 2017-02-18 · 3 obs
● 2017-02-18 02:22:30
○ 2026-04-26 13:22:48
○ 2026-04-26 13:22:50
●CNAMEmail.263.net2026-04-26 → 2026-04-26 · 2 obs
● 2026-04-26 13:22:48
● 2026-04-26 13:22:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...-
ryhson.comdns29.hichina.com, dns30.hichina.com18 records

✅ Authoritative Response

Server:120.76.107.37

NS records: dns29.hichina.com, dns30.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ryhson.com (unsigned zone)

⏱️ Timing

Total: 3569ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1mail.263.net

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns29.hichina.com, dns29.hichina.com, dns29.hichina.com...)

Analysis

IP Addresses

mail.ryhson.com points to a single IP number: 128.1.38.2.

Other host names, for instance abroad.263.net, smtphy.263.net and mail.263.net share IP numbers with mail.ryhson.com.