`mx.sibengineering.com`

DNSSEC	⚠️ Not signed
A	5.131.242.139^{🇷🇺 NTK5.131.240.0/20 Novotelecom Ltd.}
		PTR	`mx.sibengineering.com`

`sibengineering.com`

	DNSSEC	⚠️ Not signed
	A	92.53.96.143^{🇷🇺 TimeWeb-AS92.53.96.0/24}
	NS	`ns1.he.net` ⭐
	NS	`ns2.he.net`
	NS	`ns3.he.net`
	NS	`ns4.he.net`
	NS	`ns5.he.net`
	MX	`mx1.sibengineering.com` ⭐
	MX	`zimbra-sib.sibengineering.com`⁽⁵⁰⁾
	TXT	`v=spf1 +a +mx -all`
	SOA	`ns1.he.net`hostmaster@he.net 2025-12-11 #0

PTR for

139.242.131.5.in-addr.arpa

Previously MX for

sibengineering.com

Same first word

mx.money

mx.kasserver.com

mx.com.ar

mx.sytes.net

mx.center

mx.withyoutube.com

mx.mba

mx.co.uk

mx.s3-website-eu-west-1.amazonaws.com

mx.s3-website-us-east-1.amazonaws.com

mx.design

mx.s3-website-us-west-1.amazonaws.com

mx.msk.ru

mx.scrapping.cc

mx.tv

mx.casino

mx.ma

mx.dyndns.org

mx.sh

mx.ax

mx.lv

mx.or.at

mx.cn

mx.servebbs.org

mx.microsoft

mx.ph

mx.myftp.biz

mx.com.tr

mx.be

mx.guru

mx.selfip.com

mx.co

mx.ro

mx.com.kz

mx.ru.net

mx.firewall-gateway.de

mx.mayfirst.org

mx.principe.st

mx.ag

mx.ee

mx.net.ru

mx.fi

mx.cz

mx.co.kr

mx.net

mx.box

mx.homelinux.com

mx.dnsalias.com

mx.se

mx.srv.br

mx.si

mx.de

mx.org.ua

mx.nl

mx.com

mx.al

mx

mx.org

mx.net.au

mx.sb

mx.sub.jp

mx.nf

mx.kg

mx.fm

mx.dk

mx.mil.lv

mx.is

mx.ac.cn

mx.uz

mx.mt

mx.lt

mx.co.at

mx.ua

mx.csb.app

mx.au

mx.go.gov.br

mx.com.mx

mx.dev

mx.su

mx.com.au

mx.123hjemmeside.no

mx.cl

mx.by

mx.bplaced.net

mx.uy

mx.dyndns-mail.com

mx.io

mx.co.ke

mx.vg

mx.gp

mx.cloudaccess.net

mx.gs

mx.global.prod.fastly.net

mx.com.pt

mx.ru

mx.services

mx.pl

mx.ht

mx.uk

mx.no

mx.cloud.nospamproxy.com

mx.agency

mx.rs

mx.vc

mx.cloudflare.net

mx.ws

mx.plus

mx.zone

mx.co.za

mx.tours

mx.s3.amazonaws.com

mx.com.tw

mx.vu

mx.biz

mx.ms

mx.network

mx.se.gov.br

mx.gy

mx.pe

mx.realm.cz

mx.tn

mx.exchange

mx.kh.ua

mx.md

mx.to

mx.saotome.st

mx.cm

mx.graphics

mx.cx

mx.support

mx.myftp.org

mx.duckdns.org

mx.kinghost.net

Similar names

xm.ru

xm.de

xm.cl

xm.sk

xm.se

xm.hu

xm.com.co

xm.africa

xm.fi

xm.is

xm.am

xm.money

xm.be

xm.cz

xm.hk.cn

xm.fj.cn

xm.pl

xm.vn.ua

xm.house

xm.mk

xm.com

xm.biz

xm.media

xm.fyi

DNS History

2 records (1 active, 1 former)

○A37.192.130.1352015-07-20 → 2015-11-20 · 4 obs

● 2015-07-20 05:37:14
● 2015-11-20 04:45:14
○ 2016-02-09 03:38:06
○ 2026-03-30 01:16:02

●A5.131.242.1392026-03-10 → 2026-03-30 · 3 obs

○ 2016-02-09 03:38:06
● 2026-03-10 04:09:10
● 2026-03-30 01:16:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
sibengineering.com	ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net...	-

✅ Authoritative Response

Server:216.66.80.18

NS records: ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net, ns5.he.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sibengineering.com (unsigned zone)

⏱️ Timing

Total: 409ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.131.242.139`

Analysis

IP Addresses

mx.sibengineering.com points to a single IP number: 5.131.242.139.

mx.sibengineering.com - robtex.com