`mx.mathopenbank.org`

DNSSEC	⚠️ Not signed
A	185.54.136.69^{🇷🇺 MCCME-AS185.54.136.0/23 RU-MCCME-IPv4}
		PTR	`watson.mccme.ru`

`mathopenbank.org`

	DNSSEC	⚠️ Not signed
	A	185.54.136.137^{🇷🇺 MCCME-AS185.54.136.0/23 RU-MCCME-IPv4}
	NS	`ns1.mccme.ru` ⭐
	NS	`ns.mccme.ru`
	NS	`ns2.mccme.ru`
	MX	`mx.mccme.ru` ⭐
	MX	`mx.mathopenbank.org`⁽²⁰⁾
	SOA	`ns.mccme.ru`hostmaster@mathopenbank.org 2017-07-10 #3

MX for

mathopenbank.org

Same first word

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DNS History

1 record (1 active, 0 former)

●A185.54.136.692020-02-02 → 2026-03-25 · 2 obs

● 2020-02-02 08:34:24
● 2026-03-25 09:30:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
mathopenbank.org	ns1.mccme.ru, ns2.mccme.ru, ns.mccme.ru	-

✅ Authoritative Response

Server:185.54.136.65

NS records: ns1.mccme.ru, ns2.mccme.ru, ns.mccme.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathopenbank.org (unsigned zone)

⏱️ Timing

Total: 1147ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.54.136.69`

Analysis

Mail Server Role

mx.mathopenbank.org serves as the mail server for mathopenbank.org.

mx.mccme.ru often functions as the mail server, commonly paired with mx.mathopenbank.org.

IP Addresses

mx.mathopenbank.org points to a single IP address: 185.54.136.69.

Other host names such as chld.ru, ns.chld.su, ns.chld.ru, chld.su and ns2.chld.ru share IP numbers with mx.mathopenbank.org.

mx.mathopenbank.org - robtex.com