`mx1.f-construction.ru`

DNSSEC	⚠️ Not signed
A	178.57.86.118^{🇷🇺 BIZTEL-AS178.57.80.0/21 Biz Telecom LLC Customers Address Space}
		PTR	`mx1.f-construction.ru`

`f-construction.ru`

	DNSSEC	⚠️ Not signed
	A	2a03:6f00:1::5c35:7627^{🇷🇺 TimeWeb-AS2a03:6f00:1::/48 TIMEWEB-v6-48-1}
	A	92.53.118.39^{🇷🇺 TimeWeb-AS92.53.118.0/24}
	NS	`ns3-l2.nic.ru` ⭐
	NS	`ns4-cloud.nic.ru`
	NS	`ns4-l2.nic.ru`
	NS	`ns8-cloud.nic.ru`
	NS	`ns8-l2.nic.ru`
	MX	`mx1.f-construction.ru` ⭐
	TXT	`v=spf1 ip4:178.57.86.118 a mx include:mx1.f-construction.ru ~all`
	SOA	`ns3-l2.nic.ru`dns@nic.ru 2023-02-26 #4

PTR for

118.86.57.178.in-addr.arpa

MX for

f-construction.ru

Same first word

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DNS History

1 record (1 active, 0 former)

●A178.57.86.1182026-02-24 → 2026-03-27 · 2 obs

● 2026-02-24 23:23:58
● 2026-03-27 05:36:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	f.dns.ripn.net, e.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net...	-
f-construction.ru	ns3-l2.nic.ru, ns4-l2.nic.ru, ns8-l2.nic.ru, ns4-cloud.nic.ru...	19 records

✅ Authoritative Response

Server:89.104.93.30

NS records: ns3-l2.nic.ru, ns4-l2.nic.ru, ns8-l2.nic.ru, ns4-cloud.nic.ru, ns8-cloud.nic.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for f-construction.ru (unsigned zone)

⏱️ Timing

Total: 723ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`178.57.86.118`

📌 Glue Records Collected

Total: 19

Out-of-bailiwick: 19 (ns8-cloud.nic.ru, ns8-cloud.nic.ru, ns8-cloud.nic.ru...)

Analysis

Mail Server Role

mx1.f-construction.ru serves as the mail server for f-construction.ru.

IP Addresses

mx1.f-construction.ru points to an IP address: 178.57.86.118.

Other host names, for instance mx.facade-s.ru, share IP numbers with mx1.f-construction.ru.

mx1.f-construction.ru - robtex.com