`mail.mathcert.com`

	DNSSEC	⚠️ Not signed
	A	89.31.143.90^{🇩🇪 UDAG89.31.143.0/24}

`mathcert.com`

	DNSSEC	⚠️ Not signed
	A	89.31.143.90^{🇩🇪 UDAG89.31.143.0/24}
	NS	`ns.udag.de` ⭐
	NS	`ns.udag.net`
	NS	`ns.udag.org`
	MX	`mx00.udag.de` ⭐
	MX	`mx01.udag.de`⁽²⁰⁾
	TXT	`v=spf1 include:_smtp.udag.de ~all`
	SOA	`ns.udag.de`hostmaster@united-domains.de 2024-03-16 #3

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DNS History

4 records (1 active, 3 former)

○A85.10.208.442008-03-08 → 2008-03-08 · 3 obs

● 2008-03-08 15:42:52
○ 2015-08-23 08:39:00
○ 2026-07-07 16:50:18

○A89.31.143.112015-08-23 → 2015-08-23 · 4 obs

○ 2008-03-08 15:42:52
● 2015-08-23 08:39:00
○ 2015-12-09 12:02:30
○ 2026-07-07 16:50:18

○A89.31.143.162015-12-09 → 2016-07-18 · 5 obs

○ 2015-08-23 08:39:00
● 2015-12-09 12:02:30
● 2016-07-18 21:36:16
○ 2026-05-06 09:57:18
○ 2026-07-07 16:50:18

●A89.31.143.902026-05-06 → 2026-07-07 · 3 obs

○ 2016-07-18 21:36:16
● 2026-05-06 09:57:18
● 2026-07-07 16:50:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net, i.gtld-servers.net...	-
mathcert.com	ns.udag.de, ns.udag.net, ns.udag.org	-

✅ Authoritative Response

Server:217.160.80.253

NS records: ns.udag.de, ns.udag.net, ns.udag.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathcert.com (unsigned zone)

⏱️ Timing

Total: 335ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.31.143.90`

Analysis

IP Addresses

mail.mathcert.com directs to one IP number, which is 89.31.143.90.

Among the host names that share IP numbers with mail.mathcert.com are weisser.at, matthias-mueller-privat.de, ifos-bund.de and two others.

mail.mathcert.com - dns.ninja