`patent-online.com`

DNSSEC	⚠️ Not signed
A	87.129.21.198^{🇩🇪 DTAG87.128.0.0/10 Deutsche Telekom AG, Internet service provider}
NS	`ns1.brandshelter.com` ⭐
		A	2a04:2b00:14cc::9^{🇬🇧 RCODEZERO-ANYCAST-SEC1-TLD2a04:2b00:14cc::/48}
		A	193.227.117.9^{🇩🇪 RCODEZERO-ANYCAST-SEC1-TLD193.227.117.0/24}
			PTR	`ns1.brandshelter.com`
NS	`ns2.brandshelter.de`
		A	2a04:2b00:14dd::11^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14dd::/48}
			PTR	`ns11.j.centralnic-dns.com`
		A	194.50.187.11^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.50.187.0/24}
			PTR	`ns2.brandshelter.de`
NS	`ns3.brandshelter.info`
		A	2a04:2b00:14ee::12^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14ee::/48}
			PTR	`ns12.k.centralnic-dns.com`
		A	194.0.182.12^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.0.182.0/24}
			PTR	`ns3.brandshelter.info`
NS	`ns4.brandshelter.net`
		A	2a04:2b00:14cc::10^{🇬🇧 RCODEZERO-ANYCAST-SEC1-TLD2a04:2b00:14cc::/48}
			PTR	`ns10.i.centralnic-dns.com`
		A	193.227.117.10^{🇩🇪 RCODEZERO-ANYCAST-SEC1-TLD193.227.117.0/24}
			PTR	`ns4.brandshelter.net`
NS	`ns5.brandshelter.us`
		A	2a04:2b00:14dd::14^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14dd::/48}
			PTR	`ns14.j.centralnic-dns.com`
		A	194.50.187.14^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.50.187.0/24}
			PTR	`ns5.brandshelter.us`
MX	`patentonline-com01e.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::4^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::10^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbapr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::2^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr83cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::9^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr04cu00801.inbound.protection.outlook.com`
		A	52.101.68.18^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db4pr02cu00302.inbound.protection.outlook.com`
		A	52.101.68.29^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbapr03cu00105.inbound.protection.outlook.com`
		A	52.101.68.39^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00607.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms28270761`
TXT	`lhjt6bvdc1gc5003j1bj6t540f`
SOA	`ns1.brandshelter.com`tech@brandshelter.com 2026-06-29 #0

`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=1783163076

Same first word

patent-online.com

DNS History

17 records (7 active, 10 former)

○NSns.udag.de2026-05-23 → 2026-05-23 · 4 obs

○ 2017-05-13 11:46:20
● 2026-05-23 18:24:44
○ 2026-07-04 09:11:18
○ 2026-07-04 11:11:34

○NSns.udag.net2026-05-23 → 2026-05-23 · 4 obs

○ 2017-05-13 11:46:20
● 2026-05-23 18:24:44
○ 2026-07-04 09:11:18
○ 2026-07-04 11:11:34

○NSns.udag.org2026-05-23 → 2026-05-23 · 4 obs

○ 2017-05-13 11:46:20
● 2026-05-23 18:24:44
○ 2026-07-04 09:11:18
○ 2026-07-04 11:11:34

●NSns1.brandshelter.com2026-07-04 → 2026-07-04 · 3 obs

○ 2026-05-23 18:24:44
● 2026-07-04 09:11:18
● 2026-07-04 11:11:34

●NSns2.brandshelter.de2026-07-04 → 2026-07-04 · 3 obs

○ 2026-05-23 18:24:44
● 2026-07-04 09:11:18
● 2026-07-04 11:11:34

●NSns3.brandshelter.info2026-07-04 → 2026-07-04 · 3 obs

○ 2026-05-23 18:24:44
● 2026-07-04 09:11:18
● 2026-07-04 11:11:34

●NSns4.brandshelter.net2026-07-04 → 2026-07-04 · 3 obs

○ 2026-05-23 18:24:44
● 2026-07-04 09:11:18
● 2026-07-04 11:11:34

●NSns5.brandshelter.us2026-07-04 → 2026-07-04 · 3 obs

○ 2026-05-23 18:24:44
● 2026-07-04 09:11:18
● 2026-07-04 11:11:34

○NSnsa9.schlundtech.de2015-05-25 → 2017-05-13 · 4 obs

● 2015-05-25 10:04:22
● 2017-05-13 11:46:20
○ 2026-05-23 18:24:44
○ 2026-07-04 11:11:34

○NSnsb9.schlundtech.de2015-05-25 → 2017-05-13 · 4 obs

● 2015-05-25 10:04:22
● 2017-05-13 11:46:20
○ 2026-05-23 18:24:44
○ 2026-07-04 11:11:34

○NSnsc9.schlundtech.de2015-05-25 → 2017-05-13 · 4 obs

● 2015-05-25 10:04:22
● 2017-05-13 11:46:20
○ 2026-05-23 18:24:44
○ 2026-07-04 11:11:34

○NSnsd9.schlundtech.de2015-05-25 → 2017-05-13 · 4 obs

● 2015-05-25 10:04:22
● 2017-05-13 11:46:20
○ 2026-05-23 18:24:44
○ 2026-07-04 11:11:34

○MXmail.neuhahn.de2015-05-25 → 2016-09-22 · 4 obs

● 2015-05-25 10:04:22
● 2016-09-22 04:32:14
○ 2017-05-13 11:46:20
○ 2026-07-04 11:11:34

○MXmail.pavis.de2017-05-13 → 2017-05-13 · 4 obs

○ 2016-09-22 04:32:14
● 2017-05-13 11:46:20
○ 2026-05-23 18:24:44
○ 2026-07-04 11:11:34

●MXpatentonline-com01e.mail.protection.outlook.com2026-05-23 → 2026-07-04 · 3 obs

○ 2017-05-13 11:46:20
● 2026-05-23 18:24:44
● 2026-07-04 11:11:34

○A212.204.94.1972015-05-25 → 2017-05-13 · 4 obs

● 2015-05-25 10:04:22
● 2017-05-13 11:46:20
○ 2026-05-23 18:24:44
○ 2026-07-04 11:11:34

●A87.129.21.1982026-05-23 → 2026-07-04 · 3 obs

○ 2017-05-13 11:46:20
● 2026-05-23 18:24:44
● 2026-07-04 11:11:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
patent-online.com	ns1.brandshelter.com, ns2.brandshelter.de, ns3.brandshelter.info, ns4.brandshelter.net...	2 records

✅ Authoritative Response

Server:194.50.187.11

NS records: ns1.brandshelter.com, ns2.brandshelter.de, ns3.brandshelter.info, ns4.brandshelter.net, ns5.brandshelter.us

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for patent-online.com (unsigned zone)

⏱️ Timing

Total: 298ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`87.129.21.198`
NS	5	`ns1.brandshelter.com, ns4.brandshelter.net...`
MX	1	`patentonline-com01e.mail.protection.outl`
TXT	3	`MS=ms28270761, v=spf1 include:spf.protection.outlook.co...`
SOA	1	`ns1.brandshelter.com tech.brandshelter.c`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.brandshelter.com, ns1.brandshelter.com)

Analysis

IP Addresses

patent-online.com directs to one IP number, which is 87.129.21.198.

Other hosts including pavis-proma.de, www.pavis-online.com and pavis-online.com share IP addresses with patent-online.com.

Name Servers

The authoritative name servers for patent-online.com are ns1.brandshelter.com, ns2.brandshelter.de, ns3.brandshelter.info and two others.

The name servers of patent-online.com overlap at least partially with those of other domains — among them fuchsschmitt.com, digitalmovers.eu, weibliche-welt.de and two more.

These name servers are routinely co-deployed with the name servers ns4.brandshelter.net, ns5.brandshelter.us, ns1.prncpm.com and two others.

Hosts with two IP numbers each:

ns1.brandshelter.com resolves to 193.227.117.9 and 2a04:2b00:14cc::9.

ns2.brandshelter.de resolves to 194.50.187.11 and 2a04:2b00:14dd::11.

ns3.brandshelter.info resolves to 194.0.182.12 and 2a04:2b00:14ee::12.

ns4.brandshelter.net resolves to 193.227.117.10 and 2a04:2b00:14cc::10.

ns5.brandshelter.us resolves to 194.50.187.14 and 2a04:2b00:14dd::14.