🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`reactivedesignpatterns.org`

DNSSEC	🔒 Signed (DS record present)
A	2a01:4f8:172:99d::5:3^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
A	138.201.48.158^{🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4}
NS	`ns.reactivedesignpatterns.org` ⭐
		A	2a01:4f8:172:99d::53^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`ns.rkuhn.info`
		A	138.201.48.158^{🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4}
			PTR	`lethe.rkuhn.info`
NS	`ns1.domaindiscount24.net`
		A	2a04:2b00:14cc::34^{🇬🇧 RCODEZERO-ANYCAST-SEC1-TLD2a04:2b00:14cc::/48}
			PTR	`ns1.monikerdns.net`
			PTR	`ns34.i.centralnic-dns.com`
		A	193.227.117.34^{🇩🇪 RCODEZERO-ANYCAST-SEC1-TLD193.227.117.0/24}
			PTR	`ns1.domaindiscount24.net`
NS	`ns2.domaindiscount24.net`
		A	2a04:2b00:14dd::34^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14dd::/48}
			PTR	`ns2.monikerdns.net`
			PTR	`ns34.j.centralnic-dns.com`
		A	194.50.187.34^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.50.187.0/24}
			PTR	`ns2.domaindiscount24.net`
NS	`ns3.domaindiscount24.net`
		A	2a04:2b00:14ee::34^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14ee::/48}
			PTR	`ns3.monikerdns.net`
			PTR	`ns34.k.centralnic-dns.com`
		A	194.0.182.34^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.0.182.0/24}
			PTR	`ns3.domaindiscount24.net`
MX	`lethe.rkuhn.info` ⭐
		A	2a01:4f8:172:99d::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`lethe.rkuhn.info`
		A	138.201.48.158^{🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4}
			PTR	`lethe.rkuhn.info`
TXT	`v=spf1 mx -all`
SOA	`ns.reactivedesignpatterns.org`hostmaster@reactivedesignpatterns.org 2025-12-17 #28

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1788332836

Same first word

reactivedesignpatterns.org

Previous names

Next names

DNS History

10 records (7 active, 3 former)

●NSns.reactivedesignpatterns.org2020-01-14 → 2026-09-02 · 3 obs

○ 2017-03-18 18:14:16
● 2020-01-14 19:43:54
● 2026-09-02 07:35:48

●NSns1.domaindiscount24.net2015-08-04 → 2026-09-02 · 5 obs

● 2015-08-04 02:58:30
● 2017-03-18 18:14:16
○ 2020-01-14 19:43:54
● 2026-08-29 18:28:24
● 2026-09-02 07:35:48

○NSns1.key-systems.net2020-01-14 → 2020-01-14 · 4 obs

○ 2017-03-18 18:14:16
● 2020-01-14 19:43:54
○ 2026-08-29 18:28:24
○ 2026-09-02 07:35:48

●NSns2.domaindiscount24.net2015-08-04 → 2026-09-02 · 5 obs

● 2015-08-04 02:58:30
● 2017-03-18 18:14:16
○ 2020-01-14 19:43:54
● 2026-08-29 18:28:24
● 2026-09-02 07:35:48

○NSns2.key-systems.net2020-01-14 → 2020-01-14 · 4 obs

○ 2017-03-18 18:14:16
● 2020-01-14 19:43:54
○ 2026-08-29 18:28:24
○ 2026-09-02 07:35:48

●NSns3.domaindiscount24.net2015-08-04 → 2026-09-02 · 5 obs

● 2015-08-04 02:58:30
● 2017-03-18 18:14:16
○ 2020-01-14 19:43:54
● 2026-08-29 18:28:24
● 2026-09-02 07:35:48

○NSns3.key-systems.net2020-01-14 → 2020-01-14 · 4 obs

○ 2017-03-18 18:14:16
● 2020-01-14 19:43:54
○ 2026-08-29 18:28:24
○ 2026-09-02 07:35:48

●MXlethe.rkuhn.info2020-01-14 → 2026-09-02 · 2 obs

● 2020-01-14 19:43:54
● 2026-09-02 07:35:48

●A138.201.48.1582020-01-14 → 2026-09-02 · 2 obs

● 2020-01-14 19:43:54
● 2026-09-02 07:35:48

●A2a01:4f8:172:99d::5:32020-01-14 → 2026-09-02 · 2 obs

● 2020-01-14 19:43:54
● 2026-09-02 07:35:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
reactivedesignpatterns.org	ns.reactivedesignpatterns.org, ns1.domaindiscount24.net, ns2.domaindiscount24.net, ns3.domaindiscount24.net	1 record

✅ Authoritative Response

Server:138.201.48.158

NS records: ns.reactivedesignpatterns.org, ns1.domaindiscount24.net, ns2.domaindiscount24.net, ns3.domaindiscount24.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 791ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`138.201.48.158`
AAAA	1	`2a01:4f8:172:99d::5:3`
NS	4	`ns2.domaindiscount24.net, ns1.domaindiscount24.net...`
MX	1	`lethe.rkuhn.info (pri: 10)`
TXT	1	`v=spf1 mx -all`
SOA	1	`ns.reactivedesignpatterns.org hostmaster`

📌 Glue Records Collected

Total: 1

In-bailiwick: 1 (ns.reactivedesignpatterns.org)

Analysis

IP Addresses

reactivedesignpatterns.org points to the IP addresses 138.201.48.158 and 2a01:4f8:172:99d::5:3

Other host names — rkuhn.info, ns.heisenbug.info, ns.rkuhn.info and lethe.rkuhn.info — share IP numbers with reactivedesignpatterns.org.

Name Servers

Four name servers handle the delegation for reactivedesignpatterns.org: ns1.domaindiscount24.net, ns2.domaindiscount24.net, ns3.domaindiscount24.net and ns.reactivedesignpatterns.org.

At least some of reactivedesignpatterns.org's name servers are shared with other domains, for example bet-at-home.fm, sombrilla.pro, boersendatenbank.de and two more.

Four hostnames, each resolving to a pair of IP addresses: ns1.domaindiscount24.net directs to 193.227.117.34 and 2a04:2b00:14cc::34; ns2.domaindiscount24.net directs to 194.50.187.34 and 2a04:2b00:14dd::34; ns3.domaindiscount24.net directs to 194.0.182.34 and 2a04:2b00:14ee::34; ns.reactivedesignpatterns.org directs to 138.201.48.158 and 2a01:4f8:172:99d::53.

Mail Servers

reactivedesignpatterns.org uses one mail server — lethe.rkuhn.info.

The mail server setup of reactivedesignpatterns.org is identical to that of domains like pionic.info, heisenbug.info and rkuhn.info.

lethe.rkuhn.info directs to two IP numbers, 138.201.48.158 and 2a01:4f8:172:99d::2.

reactivedesignpatterns.org - robtex.com