`math2b.de`

DNSSEC	⚠️ Not signed
A	89.31.143.90^{🇩🇪 UDAG89.31.143.0/24}
NS	`ns.udag.de` ⭐
		A	2001:8d8:fe:53:217:160:80:253^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns.udag.de`
		A	217.160.80.253^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns.udag.de`
NS	`ns.udag.net`
		A	2607:f1c0:fe:53:185:132:33:253^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns.udag.net`
		A	185.132.33.253^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns.udag.net`
NS	`ns.udag.org`
		A	2607:f1c0:fe:53:185:132:34:253^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns.udag.org`
		A	185.132.34.253^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns.udag.org`
MX	`mx00.udag.de` ⭐
		A	62.146.106.39^{🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH}
			PTR	`mx00.udag.de`
MX	`mx01.udag.de`⁽²⁰⁾
		A	62.146.106.40^{🇩🇪 IPX-AS1559862.146.104.0/22 NorthC Deutschland GmbH}
			PTR	`mx01.udag.de`
TXT	`v=spf1 include:_smtp.udag.de ~all`
SOA	`ns.udag.de`hostmaster@united-domains.de 2025-06-12 #68

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1775958393

Same first word

math2b.de

DNS History

11 records (6 active, 5 former)

●NSns.udag.de2026-04-12 → 2026-04-12 · 2 obs

○ 2017-03-31 22:46:20
● 2026-04-12 01:50:14

●NSns.udag.net2026-04-12 → 2026-04-12 · 2 obs

○ 2017-03-31 22:46:20
● 2026-04-12 01:50:14

●NSns.udag.org2026-04-12 → 2026-04-12 · 2 obs

○ 2017-03-31 22:46:20
● 2026-04-12 01:50:14

○NSns65.1und1.de2015-07-13 → 2017-03-31 · 3 obs

● 2015-07-13 14:59:28
● 2017-03-31 22:46:20
○ 2026-04-12 01:50:14

○NSns66.1und1.de2015-07-13 → 2017-03-31 · 3 obs

● 2015-07-13 14:59:28
● 2017-03-31 22:46:20
○ 2026-04-12 01:50:14

○MXmx00.kundenserver.de2015-07-13 → 2017-03-31 · 3 obs

● 2015-07-13 14:59:28
● 2017-03-31 22:46:20
○ 2026-04-12 01:50:14

●MXmx00.udag.de2026-04-12 → 2026-04-12 · 2 obs

○ 2017-03-31 22:46:20
● 2026-04-12 01:50:14

○MXmx01.kundenserver.de2015-07-13 → 2017-03-31 · 3 obs

● 2015-07-13 14:59:28
● 2017-03-31 22:46:20
○ 2026-04-12 01:50:14

●MXmx01.udag.de2026-04-12 → 2026-04-12 · 2 obs

○ 2017-03-31 22:46:20
● 2026-04-12 01:50:14

○A87.106.80.2002015-07-13 → 2017-03-31 · 3 obs

● 2015-07-13 14:59:28
● 2017-03-31 22:46:20
○ 2026-04-12 01:50:14

●A89.31.143.902026-04-12 → 2026-04-12 · 2 obs

○ 2017-03-31 22:46:20
● 2026-04-12 01:50:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	z.nic.de, a.nic.de, f.nic.de	-
math2b.de	ns.udag.net, ns.udag.de, ns.udag.org	2 records

✅ Authoritative Response

Server:185.132.34.253

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for math2b.de (unsigned zone)

⏱️ Timing

Total: 811ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.31.143.90`
NS	3	`ns.udag.de, ns.udag.net...`
MX	2	`mx00.udag.de (pri: 10), mx01.udag.de (pri: 20)`
TXT	1	`v=spf1 include:_smtp.udag.de ~all`
SOA	1	`ns.udag.de hostmaster.united-domains.de`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.udag.de, ns.udag.de)

Analysis

IP Addresses

math2b.de points to a single IP: 89.31.143.90.

Other host names, for instance mailproxy2.bits-cables.de, helmke-orbis.com, cupandmore.it, mypasta.de and getvisa.co share IP numbers with math2b.de.

Name Servers

math2b.de is delegated to three name servers: ns.udag.de, ns.udag.net and ns.udag.org.

math2b.de at least partially shares its name servers with other domains, for instance andreas-strobl.de, pro-idee.nl, ada.email, j-teccon.com and metall-dose.at.