a.mx.twgrid.org - robtex.com
a.mx.twgrid.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 140.109.4.73🇹🇼 ASNet140.109.0.0/16 Academia Sinica The most preeminent academic institution in Taiwan, the Republic of China No.128, Sec. 2, Academia Rd., Nangang District, Taipei City 115, Taiwan (R.O.C.) International connection maintained by Academia Sinica Department of Information Technology Services (ITS) | ||||||
| PTR | fmail3.cc.sinica.edu.tw | ||||||
mx.twgrid.org
| DNSSEC | ⚠️ Not signed | ||||||
MX for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A140.109.4.732015-08-17 → 2026-04-03 · 2 obs
● 2015-08-17 07:09:46
● 2026-04-03 06:26:42
● 2026-04-03 06:26:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| twgrid.org | ns1.twgrid.org, ns.twgrid.org | 2 records |
✅ Authoritative Response
Server:140.109.221.2
NS records: ns1.twgrid.org, ns.twgrid.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for twgrid.org (unsigned zone)
⏱️ Timing
Total: 509ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 140.109.4.73 |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns.twgrid.org, ns1.twgrid.org)
Analysis
Mail Server Role
a.mx.twgrid.org serves as the mail server for twgrid.org.
Both b.mx.twgrid.org and c.mx.twgrid.org serve as mail servers together with a.mx.twgrid.org.
IP Addresses
a.mx.twgrid.org points to an IP address: 140.109.4.73.
other host names include a.mx.ccweb.sinica.edu.tw, b.mx.webmail.stat.sinica.edu.tw, c.mx.sinica.edu.tw, a.mx.grid.sinica.edu.tw and c.mx.po.iams.sinica.edu.tw; they share IP numbers with a.mx.twgrid.org.