mathplus.de - dns.ninja

`mathplus.de`

DNSSEC	⚠️ Not signed
A	130.73.131.233^{🇩🇪 DFN130.73.0.0/16 ZIB}
		PTR	`lb003.zib.de`
		PTR	`rise824983e9.zib.de`
NS	`ns1.mi.fu-berlin.de` ⭐
		A	160.45.113.3^{🇩🇪 DFN160.45.0.0/16 FULAN}
			PTR	`cox.imp.fu-berlin.de`
NS	`ns1.fu-berlin.de`
		A	160.45.8.8^{🇩🇪 DFN160.45.0.0/16 FULAN}
			PTR	`ns1.fu-berlin.de`
NS	`ns2.fu-berlin.de`
		A	160.45.10.12^{🇩🇪 DFN160.45.0.0/16 FULAN}
			PTR	`ns2.fu-berlin.de`
NS	`ns2.mi.fu-berlin.de`
		A	160.45.41.4^{🇩🇪 DFN160.45.0.0/16 FULAN}
NS	`ns3.fu-berlin.de`
		A	130.133.1.57^{🇩🇪 DFN130.133.0.0/16 FUB}
			PTR	`ns3.fu-berlin.de`
MX	`mail.fu-berlin.de` ⭐
		A	130.133.4.67^{🇩🇪 DFN130.133.0.0/16 FUB}
			PTR	`relay1.zedat.fu-berlin.de`
TXT	`v=spf1 include:_spf.fu-berlin.de -all`
SOA	`ns1.mi.fu-berlin.de`hostmaster@mi.fu-berlin.de serial=21

`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=1783954657

Same first word

mathplus.fr

mathplus.de

mathplus.online

mathplus.info

mathplus.com

mathplus.nl

Similar names

plusmath.org

plushmat.net

plusmath.com

plushmat.com

DNS History

13 records (7 active, 6 former)

○NSns.udag.de2018-09-28 → 2018-09-28 · 4 obs

● 2018-09-28 21:55:48
● 2018-09-28 21:56:34
○ 2026-02-18 17:38:58
○ 2026-07-13 15:28:30

○NSns.udag.net2018-09-28 → 2018-09-28 · 4 obs

● 2018-09-28 21:55:48
● 2018-09-28 21:56:34
○ 2026-02-18 17:38:58
○ 2026-07-13 15:28:30

○NSns.udag.org2018-09-28 → 2018-09-28 · 4 obs

● 2018-09-28 21:55:48
● 2018-09-28 21:56:34
○ 2026-02-18 17:38:58
○ 2026-07-13 15:28:30

●NSns1.fu-berlin.de2026-02-18 → 2026-07-13 · 3 obs

○ 2018-09-28 21:56:34
● 2026-02-18 17:38:58
● 2026-07-13 15:28:30

●NSns1.mi.fu-berlin.de2026-02-18 → 2026-07-13 · 3 obs

○ 2018-09-28 21:56:34
● 2026-02-18 17:38:58
● 2026-07-13 15:28:30

●NSns2.fu-berlin.de2026-02-18 → 2026-07-13 · 3 obs

○ 2018-09-28 21:56:34
● 2026-02-18 17:38:58
● 2026-07-13 15:28:30

●NSns2.mi.fu-berlin.de2026-02-18 → 2026-07-13 · 3 obs

○ 2018-09-28 21:56:34
● 2026-02-18 17:38:58
● 2026-07-13 15:28:30

●NSns3.fu-berlin.de2026-02-18 → 2026-07-13 · 3 obs

○ 2018-09-28 21:56:34
● 2026-02-18 17:38:58
● 2026-07-13 15:28:30

●MXmail.fu-berlin.de2026-02-18 → 2026-07-13 · 3 obs

○ 2018-09-28 21:56:34
● 2026-02-18 17:38:58
● 2026-07-13 15:28:30

○MXmx00.udag.de2018-09-28 → 2018-09-28 · 4 obs

● 2018-09-28 21:55:48
● 2018-09-28 21:56:34
○ 2026-02-18 17:38:58
○ 2026-07-13 15:28:30

○MXmx01.udag.de2018-09-28 → 2018-09-28 · 4 obs

● 2018-09-28 21:55:48
● 2018-09-28 21:56:34
○ 2026-02-18 17:38:58
○ 2026-07-13 15:28:30

●A130.73.131.2332026-02-18 → 2026-07-13 · 3 obs

○ 2018-09-28 21:56:34
● 2026-02-18 17:38:58
● 2026-07-13 15:28:30

○A89.31.143.12018-09-28 → 2018-09-28 · 4 obs

● 2018-09-28 21:55:48
● 2018-09-28 21:56:34
○ 2026-02-18 17:38:58
○ 2026-07-13 15:28:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
mathplus.de	ns2.mi.fu-berlin.de, ns1.mi.fu-berlin.de, ns2.fu-berlin.de, ns3.fu-berlin.de...	3 records

✅ Authoritative Response

Server:160.45.113.3

NS records: ns2.mi.fu-berlin.de, ns1.mi.fu-berlin.de, ns2.fu-berlin.de, ns3.fu-berlin.de, ns1.fu-berlin.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathplus.de (unsigned zone)

⏱️ Timing

Total: 2208ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`130.73.131.233`
NS	5	`ns1.mi.fu-berlin.de, ns1.fu-berlin.de...`
MX	1	`mail.fu-berlin.de (pri: 20)`
TXT	1	`v=spf1 include:_spf.fu-berlin.de -all`
SOA	1	`ns1.mi.fu-berlin.de hostmaster.mi.fu-ber`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns3.fu-berlin.de, ns2.fu-berlin.de, ns1.fu-berlin.de)

Analysis

IP Addresses

mathplus.de resolves to just one IP address, 130.73.131.233.

Two other host names, along with xtreemfs.com, xtreemfs.de and rise824983e9.zib.de, also share IP numbers with mathplus.de.

Name Servers

mathplus.de delegates to five name servers: ns1.fu-berlin.de, ns2.fu-berlin.de, ns3.fu-berlin.de and two others.

There is at least partial name server overlap between mathplus.de and other domains — ircnet.net, scadacs.org, 1.106.134.in-addr.arpa and two more among them.

These name servers regularly appear alongside dns-2.dfn.de, ns1.mi.fu-berlin.de, ns2.mi.fu-berlin.de and 5 other name servers in NS record sets.

Host names that point to one IP address:

ns1.fu-berlin.de directs to 160.45.8.8.

ns2.fu-berlin.de directs to 160.45.10.12.

ns3.fu-berlin.de directs to 130.133.1.57.

ns1.mi.fu-berlin.de directs to 160.45.113.3.

ns2.mi.fu-berlin.de directs to 160.45.41.4.

Mail Servers

The sole mail server for mathplus.de is mail.fu-berlin.de.

Among the domains sharing a mail server setup with mathplus.de are gbif.de, cybertaxonomy.org, isq-bb.de and two others.

mathplus.de and a number of other domains — golem.ub.fu-berlin.de, lists.fu-berlin.de, git.imp.fu-berlin.de and kvv.imp.fu-berlin.de among them — share at least some of the same mail servers.

These mail servers often co-occur with the mail servers mail.imp.fu-berlin.de.

mail.fu-berlin.de has exactly one IP number: 130.133.4.67.