`inverse-problems.net`

DNSSEC	⚠️ Not signed
A	217.160.0.129^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
		PTR	`217-160-0-129.elastic-ssl.ui-r.com`
NS	`ns1086.ui-dns.com` ⭐
		A	2001:8d8:fe:53:0:d9a0:5256:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1086.ui-dns.com`
		A	217.160.82.86^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1086.ui-dns.com`
NS	`ns1086.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5156:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1086.ui-dns.biz`
		A	217.160.81.86^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1086.ui-dns.biz`
NS	`ns1086.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:86^{🇺🇸 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	`ns1086.ui-dns.de`
		A	217.160.80.86^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1086.ui-dns.de`
NS	`ns1086.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5356:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1086.ui-dns.org`
		A	217.160.83.86^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1086.ui-dns.org`
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	`ns1086.ui-dns.com`hostmaster@1und1.de 2017-04-07 #5

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1775941277

WOT: UNKNOWN (61/100)

Same first word

inverse-problems.net

inverse-problems.de

DNS History

18 records (7 active, 11 former)

○NSns1.is-lackert.de2007-10-11 → 2007-10-11 · 3 obs

● 2007-10-11 19:11:12
○ 2015-08-23 03:59:20
○ 2026-04-11 21:23:48

●NSns1086.ui-dns.biz2020-03-22 → 2026-04-11 · 3 obs

○ 2017-03-23 00:24:34
● 2020-03-22 13:04:42
● 2026-04-11 21:23:48

●NSns1086.ui-dns.com2020-03-22 → 2026-04-11 · 3 obs

○ 2017-03-23 00:24:34
● 2020-03-22 13:04:42
● 2026-04-11 21:23:48

●NSns1086.ui-dns.de2020-03-22 → 2026-04-11 · 3 obs

○ 2017-03-23 00:24:34
● 2020-03-22 13:04:42
● 2026-04-11 21:23:48

●NSns1086.ui-dns.org2020-03-22 → 2026-04-11 · 3 obs

○ 2017-03-23 00:24:34
● 2020-03-22 13:04:42
● 2026-04-11 21:23:48

○NSns2.is-lackert.de2007-10-11 → 2007-10-11 · 3 obs

● 2007-10-11 19:11:12
○ 2015-08-23 03:59:20
○ 2026-04-11 21:23:48

○NSns65.1und1.de2015-08-23 → 2017-03-23 · 5 obs

○ 2007-10-11 19:11:12
● 2015-08-23 03:59:20
● 2017-03-23 00:24:34
○ 2020-03-22 13:04:42
○ 2026-04-11 21:23:48

○NSns66.1und1.de2015-08-23 → 2017-03-23 · 5 obs

○ 2007-10-11 19:11:12
● 2015-08-23 03:59:20
● 2017-03-23 00:24:34
○ 2020-03-22 13:04:42
○ 2026-04-11 21:23:48

○MXmail.inverse-problems.net2007-10-11 → 2007-10-11 · 3 obs

● 2007-10-11 19:11:12
○ 2015-08-23 03:59:20
○ 2026-04-11 21:23:48

●MXmx00.ionos.de2026-03-04 → 2026-04-11 · 3 obs

○ 2020-03-22 13:04:42
● 2026-03-04 23:01:50
● 2026-04-11 21:23:48

○MXmx00.kundenserver.de2015-08-23 → 2020-03-22 · 5 obs

○ 2007-10-11 19:11:12
● 2015-08-23 03:59:20
● 2020-03-22 13:04:42
○ 2026-03-04 23:01:50
○ 2026-04-11 21:23:48

●MXmx01.ionos.de2026-03-04 → 2026-04-11 · 3 obs

○ 2020-03-22 13:04:42
● 2026-03-04 23:01:50
● 2026-04-11 21:23:48

○MXmx01.kundenserver.de2015-08-23 → 2020-03-22 · 5 obs

○ 2007-10-11 19:11:12
● 2015-08-23 03:59:20
● 2020-03-22 13:04:42
○ 2026-03-04 23:01:50
○ 2026-04-11 21:23:48

●A217.160.0.1292026-03-04 → 2026-04-11 · 3 obs

○ 2020-03-22 13:04:42
● 2026-03-04 23:01:50
● 2026-04-11 21:23:48

○A217.160.230.1692020-03-22 → 2020-03-22 · 4 obs

○ 2017-03-23 00:24:34
● 2020-03-22 13:04:42
○ 2026-03-04 23:01:50
○ 2026-04-11 21:23:48

○A217.160.231.1712016-07-15 → 2017-03-23 · 5 obs

○ 2016-03-16 10:39:22
● 2016-07-15 17:55:48
● 2017-03-23 00:24:34
○ 2020-03-22 13:04:42
○ 2026-04-11 21:23:48

○A81.3.10.622007-10-11 → 2007-10-11 · 3 obs

● 2007-10-11 19:11:12
○ 2015-08-23 03:59:20
○ 2026-04-11 21:23:48

○A82.165.99.1802015-08-23 → 2016-03-16 · 5 obs

○ 2007-10-11 19:11:12
● 2015-08-23 03:59:20
● 2016-03-16 10:39:22
○ 2016-07-15 17:55:48
○ 2026-04-11 21:23:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, k.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net...	-
inverse-problems.net	ns1086.ui-dns.de, ns1086.ui-dns.biz, ns1086.ui-dns.org, ns1086.ui-dns.com	-

✅ Authoritative Response

Server:217.160.82.86

NS records: ns1086.ui-dns.de, ns1086.ui-dns.biz, ns1086.ui-dns.org, ns1086.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for inverse-problems.net (unsigned zone)

⏱️ Timing

Total: 546ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.129`
NS	4	`ns1086.ui-dns.com, ns1086.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	`ns1086.ui-dns.com hostmaster.1und1.de`

Analysis

IP Addresses

inverse-problems.net points to a single IP: 217.160.0.129.

Other host names, for instance pelmar.de, e-poche.de, protor.de, tinacolada.de and thevis.info share IP numbers with inverse-problems.net.

Name Servers

inverse-problems.net's delegation is handled by four name servers: ns1086.ui-dns.biz, ns1086.ui-dns.com, ns1086.ui-dns.de and ns1086.ui-dns.org.

inverse-problems.net partially shares name servers with other domains; examples include thepmhive.com, canyon-lodge.com, hubsteiger-schaefer.de, carpack.com.mx and adv-metals.com.

These name servers are often used with the name servers ns1071.ui-dns.org and ns1042.ui-dns.com.

Host names with two IPs:

ns1086.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5156:100 and 217.160.81.86

ns1086.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5256:100 and 217.160.82.86

ns1086.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:86 and 217.160.80.86

ns1086.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5356:100 and 217.160.83.86

Mail Servers

inverse-problems.net is handled by two mail servers: mx00.ionos.de and mx01.ionos.de.

inverse-problems.net has the same mail server setup as other domains, including das-internetstudio.de, briehl.net, heilpraktikerin-paderborn.de, kkib.de and dermis.de.

Host names with one IP number: The host name mx00.ionos.de points to 212.227.15.41 and the host name mx01.ionos.de points to 217.72.192.67.

inverse-problems.net - robtex.com