`b.mx.twgrid.org`

DNSSEC	⚠️ Not signed
A	140.109.4.74^{🇹🇼 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	`fmail4.cc.sinica.edu.tw`

`mx.twgrid.org`

DNSSEC

⚠️ Not signed

MX for

twgrid.org

Same first word

b.co.zw

b.watch

b.kz

b.cz

b.wtf

b.akamaiedge.net

b.my

b.gy

b.edu.vn

b.de

b.hn

b.center

b.movie

b.pl

b.kg

b.capital

b.fashion

b.sg

b.af

b.cc

b.camp

b.org.nz

b.githubusercontent.com

b.fyi

b.bi

b.bw

b.sh

b.vg

b.at

b.is

b.care

b.site

b.ph

b.lu

b.gd

b.ink

b.gold

b.art.pl

b.uy

b.sc

b.co

b.systems

b.s3.amazonaws.com

b.beer

b.sk

b.glass

b.cr

b.lol

b.akamai.net

b.cash

b.fi

b.net.nz

b.hr

b.fm

b.company

b.qh.cn

b.app

b.vodka

b.doctor

b.me

b.aivencloud.com

b.br

b.nx.cn

b.cx

b.dk

b.gl

b.et

b.hm

b.info.pl

b.nu

b.link

b.co.nl

b.mr

b.ht

b.cm

b.biz

b.asia

b.green

b.co.uk

b.ai

b.akamai-staging.net

b.gov.au

b.fit

b.tc

b.gg

b.com.br

b.tv

b.hu

b.ddns.net

b.bike

b.game

b.to

b.ly

b.com.ua

b.eus

b.cl

b.fr

b.ath.cx

b.mw

b.co.za

b.io

b.ws

b.js.cn

b.je

b.country

b.ro

b.akamaiedge-staging.net

b.top

b.ms

b.ln.cn

b.ua

b.gov.lv

b.co.kr

b.media

b.ee

b.ie

b.com.mx

b.com.de

b.gt

b.gp

b.digital

b.org

b.box

b.new

b.ls

b.st

b.cn

DNS History

1 record (1 active, 0 former)

●A140.109.4.742015-08-18 → 2026-04-03 · 2 obs

● 2015-08-18 06:06:00
● 2026-04-03 04:52:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
twgrid.org	ns.twgrid.org, ns1.twgrid.org	2 records

✅ Authoritative Response

Server:140.109.224.99

NS records: ns.twgrid.org, ns1.twgrid.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for twgrid.org (unsigned zone)

⏱️ Timing

Total: 479ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`140.109.4.74`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns.twgrid.org, ns1.twgrid.org)

Analysis

Mail Server Role

b.mx.twgrid.org serves as the mail server for twgrid.org.

a.mx.twgrid.org and c.mx.twgrid.org are commonly used mail servers alongside b.mx.twgrid.org.

IP Addresses

b.mx.twgrid.org resolves to a single IP address: 140.109.4.74.

Other host names including b.mx.iias.tw, b.mx.ccweb.sinica.edu.tw, d.mx.pub.iams.sinica.edu.tw, d.mx.po.iams.sinica.edu.tw and b.mx.chem.sinica.edu.tw share IP numbers with b.mx.twgrid.org.

b.mx.twgrid.org - robtex.com

b.mx.twgrid.org

mx.twgrid.org