`linkedinmasterclass.com`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::272^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0272.elastic-ssl.ui-r.com`
A	217.160.0.191^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns1098.ui-dns.de` ⭐
		A	2607:f1c0:fe:53:185:132:32:98^{🇺🇸 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	`ns1098.ui-dns.de`
		A	217.160.80.98^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1098.ui-dns.de`
NS	`ns1098.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5162:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1098.ui-dns.biz`
		A	217.160.81.98^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1098.ui-dns.biz`
NS	`ns1098.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5262:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1098.ui-dns.com`
		A	217.160.82.98^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1098.ui-dns.com`
NS	`ns1098.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5362:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1098.ui-dns.org`
		A	217.160.83.98^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1098.ui-dns.org`
MX	`mx00.ionos.co.uk` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.co.uk` ⭐
		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	`ns1098.ui-dns.de`hostmaster@1and1.com 2016-06-17 #6

`com`

	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=1771291435

Same first word

linkedinmasterclass.com

DNS History

18 records (8 active, 10 former)

○NSns-uk.1and1-dns.biz2015-07-14 → 2017-04-21 · 4 obs

● 2015-07-14 07:02:38
● 2017-04-21 09:46:58
○ 2026-02-27 04:05:50
○ 2026-03-16 10:51:08

○NSns-uk.1and1-dns.co.uk2015-07-14 → 2017-04-21 · 4 obs

● 2015-07-14 07:02:38
● 2017-04-21 09:46:58
○ 2026-02-27 04:05:50
○ 2026-03-16 10:51:08

○NSns-uk.1and1-dns.com2015-07-14 → 2017-04-21 · 4 obs

● 2015-07-14 07:02:38
● 2017-04-21 09:46:58
○ 2026-02-27 04:05:50
○ 2026-03-16 10:51:08

○NSns-uk.1and1-dns.org2015-07-14 → 2017-04-21 · 4 obs

● 2015-07-14 07:02:38
● 2017-04-21 09:46:58
○ 2026-02-27 04:05:50
○ 2026-03-16 10:51:08

●NSns1098.ui-dns.biz2026-02-27 → 2026-03-16 · 3 obs

○ 2017-04-21 09:46:58
● 2026-02-27 04:05:50
● 2026-03-16 10:51:08

●NSns1098.ui-dns.com2026-02-27 → 2026-03-16 · 3 obs

○ 2017-04-21 09:46:58
● 2026-02-27 04:05:50
● 2026-03-16 10:51:08

●NSns1098.ui-dns.de2026-02-27 → 2026-03-16 · 3 obs

○ 2017-04-21 09:46:58
● 2026-02-27 04:05:50
● 2026-03-16 10:51:08

●NSns1098.ui-dns.org2026-02-27 → 2026-03-16 · 3 obs

○ 2017-04-21 09:46:58
● 2026-02-27 04:05:50
● 2026-03-16 10:51:08

○MXmx00.1and1.co.uk2015-07-14 → 2017-04-21 · 4 obs

● 2015-07-14 07:02:38
● 2017-04-21 09:46:58
○ 2026-02-27 04:05:50
○ 2026-03-16 10:51:08

●MXmx00.ionos.co.uk2026-02-27 → 2026-03-16 · 3 obs

○ 2017-04-21 09:46:58
● 2026-02-27 04:05:50
● 2026-03-16 10:51:08

○MXmx01.1and1.co.uk2015-07-14 → 2017-04-21 · 4 obs

● 2015-07-14 07:02:38
● 2017-04-21 09:46:58
○ 2026-02-27 04:05:50
○ 2026-03-16 10:51:08

●MXmx01.ionos.co.uk2026-02-27 → 2026-03-16 · 3 obs

○ 2017-04-21 09:46:58
● 2026-02-27 04:05:50
● 2026-03-16 10:51:08

○A195.20.241.362015-07-14 → 2016-02-04 · 4 obs

● 2015-07-14 07:02:38
● 2016-02-04 21:20:12
○ 2016-07-11 15:47:08
○ 2026-03-16 10:51:08

○A2001:8d8:1000:9043:1aeb:813b:75d9:98052015-07-14 → 2016-02-04 · 4 obs

● 2015-07-14 07:02:38
● 2016-02-04 21:20:12
○ 2016-07-11 15:47:08
○ 2026-03-16 10:51:08

○A2001:8d8:1000:9043:769f:52aa:a5c0:d81a2016-07-11 → 2017-04-21 · 5 obs

○ 2016-02-04 21:20:12
● 2016-07-11 15:47:08
● 2017-04-21 09:46:58
○ 2026-02-27 04:05:50
○ 2026-03-16 10:51:08

●A2001:8d8:100f:f000::2722026-02-27 → 2026-03-16 · 3 obs

○ 2017-04-21 09:46:58
● 2026-02-27 04:05:50
● 2026-03-16 10:51:08

●A217.160.0.1912026-02-27 → 2026-03-16 · 3 obs

○ 2017-04-21 09:46:58
● 2026-02-27 04:05:50
● 2026-03-16 10:51:08

○A217.160.233.722016-07-11 → 2017-04-21 · 5 obs

○ 2016-02-04 21:20:12
● 2016-07-11 15:47:08
● 2017-04-21 09:46:58
○ 2026-02-27 04:05:50
○ 2026-03-16 10:51:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linkedinmasterclass.com	ns1098.ui-dns.de, ns1098.ui-dns.biz, ns1098.ui-dns.org, ns1098.ui-dns.com	2 records

✅ Authoritative Response

Server: 217.160.80.98

NS records: ns1098.ui-dns.de, ns1098.ui-dns.biz, ns1098.ui-dns.org, ns1098.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linkedinmasterclass.com (unsigned zone)

⏱️ Timing

Total: 1020ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.191`
AAAA	1	`2001:8d8:100f:f000::272`
NS	4	`ns1098.ui-dns.org, ns1098.ui-dns.de...`
MX	2	`mx01.ionos.co.uk (pri: 10), mx00.ionos.co.uk (pri: 10)`
TXT	1	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	1	`ns1098.ui-dns.de hostmaster.1and1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1098.ui-dns.com, ns1098.ui-dns.com)

Analysis

IP Addresses

linkedinmasterclass.com resolves to two IP numbers: 2001:8d8:100f:f000::272 and 217.160.0.191.

Other host names, for instance www.regum.com, maxeiner.org, mattduffy.com, leechalmers.co and wicoforms.de share IP numbers with linkedinmasterclass.com.

Name Servers

linkedinmasterclass.com's delegation is handled by four name servers: ns1098.ui-dns.biz, ns1098.ui-dns.com, ns1098.ui-dns.de and ns1098.ui-dns.org.

linkedinmasterclass.com partially shares name servers with other domains; examples include mediaaccounting.com, pritzwald-stegmann.de, alliancepro.com, im-ts.biz and your-ib.com.

These name servers commonly accompany ns1047.ui-dns.biz, ns1055.ui-dns.de, ns1035.ui-dns.org and ns1083.ui-dns.com.

Host names with two IPs:

ns1098.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5162:100 and 217.160.81.98

ns1098.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5262:100 and 217.160.82.98

ns1098.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:98 and 217.160.80.98

ns1098.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5362:100 and 217.160.83.98

Mail Servers

linkedinmasterclass.com is handled by two mail servers: mx00.ionos.co.uk and mx01.ionos.co.uk.

linkedinmasterclass.com has the same mail server setup as other domains, including splinterscarpentry.com, teasandseas.com, nri2u.co.uk, lincolnshirecover.com and watsonsestates.co.uk.

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

linkedinmasterclass.com - robtex.com