mathcert.de - dns.ninja

`mathcert.de`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::200^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com`
A	217.160.0.90^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns1117.ui-dns.org` ⭐
		A	2001:8d8:fe:53:0:d9a0:5375:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1117.ui-dns.org`
		A	217.160.83.117^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1117.ui-dns.org`
NS	`ns1117.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5175:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1117.ui-dns.biz`
		A	217.160.81.117^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1117.ui-dns.biz`
NS	`ns1117.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5275:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1117.ui-dns.com`
		A	217.160.82.117^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1117.ui-dns.com`
NS	`ns1117.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:117^{🇺🇸 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	`ns1117.ui-dns.de`
		A	217.160.80.117^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1117.ui-dns.de`
MX	`mx00.ionos.de` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.de` ⭐
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	`ns1117.ui-dns.org`hostmaster@1und1.de 2016-06-19 #5

`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=1783273179

Same first word

mathcert.com

mathcert.de

Similar names

DNS History

14 records (8 active, 6 former)

●NSns1117.ui-dns.biz2026-06-21 → 2026-07-05 · 3 obs

○ 2017-04-20 12:25:54
● 2026-06-21 12:23:48
● 2026-07-05 17:39:58

●NSns1117.ui-dns.com2026-06-21 → 2026-07-05 · 3 obs

○ 2017-04-20 12:25:54
● 2026-06-21 12:23:48
● 2026-07-05 17:39:58

●NSns1117.ui-dns.de2026-06-21 → 2026-07-05 · 3 obs

○ 2017-04-20 12:25:54
● 2026-06-21 12:23:48
● 2026-07-05 17:39:58

●NSns1117.ui-dns.org2026-06-21 → 2026-07-05 · 3 obs

○ 2017-04-20 12:25:54
● 2026-06-21 12:23:48
● 2026-07-05 17:39:58

○NSns55.1und1.de2015-07-01 → 2017-04-20 · 4 obs

● 2015-07-01 10:08:06
● 2017-04-20 12:25:54
○ 2026-06-21 12:23:48
○ 2026-07-05 17:39:58

○NSns56.1und1.de2015-07-01 → 2017-04-20 · 4 obs

● 2015-07-01 10:08:06
● 2017-04-20 12:25:54
○ 2026-06-21 12:23:48
○ 2026-07-05 17:39:58

●MXmx00.ionos.de2026-06-21 → 2026-07-05 · 3 obs

○ 2017-04-20 12:25:54
● 2026-06-21 12:23:48
● 2026-07-05 17:39:58

○MXmx00.kundenserver.de2015-07-01 → 2017-04-20 · 4 obs

● 2015-07-01 10:08:06
● 2017-04-20 12:25:54
○ 2026-06-21 12:23:48
○ 2026-07-05 17:39:58

●MXmx01.ionos.de2026-06-21 → 2026-07-05 · 3 obs

○ 2017-04-20 12:25:54
● 2026-06-21 12:23:48
● 2026-07-05 17:39:58

○MXmx01.kundenserver.de2015-07-01 → 2017-04-20 · 4 obs

● 2015-07-01 10:08:06
● 2017-04-20 12:25:54
○ 2026-06-21 12:23:48
○ 2026-07-05 17:39:58

●A2001:8d8:100f:f000::2002026-06-21 → 2026-07-05 · 3 obs

○ 2017-04-20 12:25:54
● 2026-06-21 12:23:48
● 2026-07-05 17:39:58

●A217.160.0.902026-06-21 → 2026-07-05 · 3 obs

○ 2017-04-20 12:25:54
● 2026-06-21 12:23:48
● 2026-07-05 17:39:58

○A217.160.233.1552016-08-12 → 2017-04-20 · 5 obs

○ 2016-03-26 10:51:24
● 2016-08-12 18:36:26
● 2017-04-20 12:25:54
○ 2026-06-21 12:23:48
○ 2026-07-05 17:39:58

○A82.165.212.2512015-07-01 → 2016-03-26 · 4 obs

● 2015-07-01 10:08:06
● 2016-03-26 10:51:24
○ 2016-08-12 18:36:26
○ 2026-07-05 17:39:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	z.nic.de, a.nic.de, f.nic.de	-
mathcert.de	ns1117.ui-dns.de, ns1117.ui-dns.biz, ns1117.ui-dns.com, ns1117.ui-dns.org	-

✅ Authoritative Response

Server:217.160.80.117

NS records: ns1117.ui-dns.de, ns1117.ui-dns.biz, ns1117.ui-dns.com, ns1117.ui-dns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathcert.de (unsigned zone)

⏱️ Timing

Total: 2171ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.90`
AAAA	1	`2001:8d8:100f:f000::200`
NS	4	`ns1117.ui-dns.de, ns1117.ui-dns.biz...`
MX	2	`mx01.ionos.de (pri: 10), mx00.ionos.de (pri: 10)`
TXT	1	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	1	`ns1117.ui-dns.org hostmaster.1und1.de`

Analysis

IP Addresses

mathcert.de points to the IP addresses 217.160.0.90 and 2001:8d8:100f:f000::200

Two other host names, along with fbizs.com, dormisis.es and sparmax-airbrush.de, also share IP numbers with mathcert.de.

Name Servers

The NS records for mathcert.de point to four name servers: ns1117.ui-dns.biz, ns1117.ui-dns.com, ns1117.ui-dns.de and ns1117.ui-dns.org.

At least some of mathcert.de's name servers are shared with other domains, for example vintageragz.com, christopherjcruz.com, orangeitalia.it and two more.

These name servers tend to co-occur with ns1075.ui-dns.de, ns1076.ui-dns.biz, ns1096.ui-dns.de and 3 other name servers in the same DNS delegations.

Four hostnames, each resolving to a pair of IP addresses: ns1117.ui-dns.biz directs to 217.160.81.117 and 2001:8d8:fe:53:0:d9a0:5175:100; ns1117.ui-dns.com directs to 217.160.82.117 and 2001:8d8:fe:53:0:d9a0:5275:100; ns1117.ui-dns.de directs to 217.160.80.117 and 2607:f1c0:fe:53:185:132:32:117; ns1117.ui-dns.org directs to 217.160.83.117 and 2001:8d8:fe:53:0:d9a0:5375:100.

Mail Servers

mathcert.de is served by two mail servers, mx00.ionos.de and mx01.ionos.de.

Among the domains sharing a mail server setup with mathcert.de are awemarkt.com, hoelper.de, galleria-moebel.de and two others.

mathcert.de overlaps on mail servers with certain other domains, allzeit-gmbh.de among them.

Each of mx00.ionos.de and mx01.ionos.de has one IP address: mx00.ionos.de uses 212.227.15.41 and mx01.ionos.de uses 217.72.192.67.