`mx2.sibengineering.com`

DNSSEC	⚠️ Not signed
A	5.131.242.134^{🇷🇺 NTK5.131.240.0/20 Novotelecom Ltd.}
		PTR	`mx2.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

134.242.131.5.in-addr.arpa

Same first word

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DNS History

1 record (1 active, 0 former)

●A5.131.242.1342026-03-22 → 2026-03-30 · 2 obs

● 2026-03-22 17:21:16
● 2026-03-30 04:22:06

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:216.218.130.2

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: 575ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.131.242.134`

Analysis

IP Addresses

mx2.sibengineering.com points to an IP address: 5.131.242.134.

Other host names, for instance gwsib.sibengineering.com, share IP numbers with mx2.sibengineering.com.

mx2.sibengineering.com - robtex.com