open-source.us - dns.ninja

`open-source.us`

DNSSEC	⚠️ Not signed
A	35.188.220.155^{🇺🇸 Google35.188.208.0/20}
		PTR	`155.220.188.35.bc.googleusercontent.com`
NS	`ns10.dynu.com` ⭐
		A	2600:3c0e::f03c:94ff:fe92:c82c^{🇳🇱 AKAMAI-LINODE-AP2600:3c0e::/32 Akamai Technologies}
			PTR	`ns10.dynu.com`
		A	172.233.50.75^{🇳🇱 AKAMAI-LINODE-AP172.233.32.0/19 Akamai Technologies}
			PTR	`ns10.dynu.com`
NS	`ns1.dynu.com` ⚠️ Not in zone NS records
		A	72.51.58.2^{🇨🇦 AS39801972.51.58.0/24 Dynu Systems Incorporated}
			PTR	`ns1.dynu.com`
NS	`ns12.dynu.com` ⚠️ Not in zone NS records
		A	2a01:7e00::f03c:91ff:fedd:6af1^{🇬🇧 AKAMAI-LINODE-AP2a01:7e00::/32 Akamai Technologies}
			PTR	`ns12.dynu.com`
		A	139.162.195.230^{🇬🇧 AKAMAI-LINODE-AP139.162.192.0/19 Akamai Technologies}
			PTR	`ns12.dynu.com`
NS	`ns2.dynu.com`
		A	2602:ff23:0:8888::2^{🇺🇸 AS3980192602:ff23::/48 PNAP-PHX003 marla-1}
			PTR	`ns1.dynu.com`
		A	108.181.13.234^{🇺🇸 AS40676108.181.0.0/19}
			PTR	`ns2.dynu.com`
NS	`ns3.dynu.com`
		A	2605:9f80:4000:214::2^{🇺🇸 DEDICATED-HIVE2605:9f80:4000::/35}
			PTR	`ns3.dynu.com`
		A	162.251.164.146^{🇺🇸 DEDICATED-HIVE162.251.164.0/24 PNAP-LAX}
			PTR	`ns3.dynu.com`
NS	`ns4.dynu.com`
		A	2604:6600:2000:39::2^{🇺🇸 AS406762604:6600:2000::/48}
			PTR	`ns4.dynu.com`
		A	108.181.159.122^{🇺🇸 AS40676108.181.156.0/22}
			PTR	`ns4.dynu.com`
NS	`ns5.dynu.com`
		A	2605:9f80:c000:404::2^{🇺🇸 DEDICATED-HIVE2605:9f80:c000::/34 PNAP-NYM 63018}
			PTR	`ns5.dynu.com`
		A	216.105.169.98^{🇺🇸 DEDICATED-HIVE216.105.169.0/24 PNAP-LAX}
			PTR	`ns5.dynu.com`
NS	`ns6.dynu.com`
		A	2607:f8f8:631:8612::2^{🇺🇸 AS273232607:f8f8:600::/40}
			PTR	`ns6.dynu.com`
		A	173.0.55.138^{🇺🇸 AS27323173.0.55.0/24 Serverstadium - abuse@serverstadium.com}
			PTR	`ns6.dynu.com`
NS	`ns7.dynu.com` ⚠️ Not in zone NS records
		A	2400:8902::f03c:91ff:fee5:9f03^{🇯🇵 AKAMAI-LINODE-AP2400:8902::/32 Akamai Technologies}
			PTR	`ns7.dynu.com`
		A	139.162.105.137^{🇯🇵 AKAMAI-LINODE-AP139.162.96.0/19 Akamai Technologies}
			PTR	`ns7.dynu.com`
NS	`ns8.dynu.com` ⚠️ Not in zone NS records
		A	2400:8907::f03c:92ff:fe79:ad70^{🇦🇺 AKAMAI-LINODE-AP2400:8907::/32 Akamai Technologies}
			PTR	`ns8.dynu.com`
		A	172.105.178.214^{🇦🇺 AKAMAI-LINODE-AP172.105.160.0/19 Akamai Technologies}
			PTR	`ns8.dynu.com`
NS	`ns9.dynu.com` ⚠️ Not in zone NS records
		A	2400:8901::f03c:93ff:feed:6cc2^{🇸🇬 AKAMAI-LINODE-AP2400:8901::/32 Akamai Technologies}
			PTR	`ns9.dynu.com`
		A	45.118.133.11^{🇸🇬 AKAMAI-LINODE-AP45.118.132.0/22 Akamai Technologies}
			PTR	`ns9.dynu.com`
TXT	`sish=SHA256:3bPdCUMWld8l0pzUSQGEh3Z8CuR9k00VjN2nJbb3gnM`
SOA	`ns1.dynu.com`administrator@dynu.com serial=172

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1785445012

Same first word

Similar names

open-course.com

source-open.de

open-course.net

DNS History

32 records (12 active, 20 former)

○NSdns1.registrar-servers.com2020-04-03 → 2020-04-03 · 4 obs

○ 2016-07-14 02:08:38
● 2020-04-03 17:20:02
○ 2026-02-24 17:56:58
○ 2026-07-30 21:10:44

○NSdns2.registrar-servers.com2020-04-03 → 2020-04-03 · 4 obs

○ 2016-07-14 02:08:38
● 2020-04-03 17:20:02
○ 2026-02-24 17:56:58
○ 2026-07-30 21:10:44

○NSmarjory.ns.cloudflare.com2016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○NSns09.domaincontrol.com2015-10-26 → 2015-12-25 · 5 obs

○ 2015-06-09 00:36:50
● 2015-10-26 23:55:26
● 2015-12-25 10:56:34
○ 2016-07-14 02:08:38
○ 2026-07-30 21:10:44

●NSns1.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

○NSns10.domaincontrol.com2015-10-26 → 2015-12-25 · 5 obs

○ 2015-06-09 00:36:50
● 2015-10-26 23:55:26
● 2015-12-25 10:56:34
○ 2016-07-14 02:08:38
○ 2026-07-30 21:10:44

●NSns10.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

●NSns12.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

●NSns2.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

●NSns3.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

●NSns4.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

●NSns5.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

●NSns6.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

●NSns7.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

○NSns75.domaincontrol.com2015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 00:36:50
○ 2015-10-26 23:55:26
○ 2026-07-30 21:10:44

○NSns76.domaincontrol.com2015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 00:36:50
○ 2015-10-26 23:55:26
○ 2026-07-30 21:10:44

●NSns8.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

●NSns9.dynu.com2026-02-24 → 2026-07-30 · 3 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-07-30 21:10:44

○NStrey.ns.cloudflare.com2016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○MXeforward1.registrar-servers.com2016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○MXeforward2.registrar-servers.com2016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○MXeforward3.registrar-servers.com2016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○MXeforward4.registrar-servers.com2016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○MXeforward5.registrar-servers.com2016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○MXmailstore1.secureserver.net2015-06-09 → 2015-12-25 · 4 obs

● 2015-06-09 00:36:50
● 2015-12-25 10:56:34
○ 2016-07-14 02:08:38
○ 2026-07-30 21:10:44

○MXsmtp.secureserver.net2015-06-09 → 2015-12-25 · 4 obs

● 2015-06-09 00:36:50
● 2015-12-25 10:56:34
○ 2016-07-14 02:08:38
○ 2026-07-30 21:10:44

○A104.24.98.2032016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○A104.24.99.2032016-07-14 → 2016-07-14 · 4 obs

○ 2015-12-25 10:56:34
● 2016-07-14 02:08:38
○ 2020-04-03 17:20:02
○ 2026-07-30 21:10:44

○A192.64.119.1942020-04-03 → 2020-04-03 · 4 obs

○ 2016-07-14 02:08:38
● 2020-04-03 17:20:02
○ 2026-02-24 17:56:58
○ 2026-07-30 21:10:44

○A35.184.180.1112026-02-24 → 2026-05-19 · 5 obs

○ 2020-04-03 17:20:02
● 2026-02-24 17:56:58
● 2026-05-19 14:27:32
○ 2026-06-02 10:59:12
○ 2026-07-30 21:10:44

●A35.188.220.1552026-06-02 → 2026-07-30 · 3 obs

○ 2026-05-19 14:27:32
● 2026-06-02 10:59:12
● 2026-07-30 21:10:44

○A72.167.191.692015-06-09 → 2015-12-25 · 4 obs

● 2015-06-09 00:36:50
● 2015-12-25 10:56:34
○ 2016-07-14 02:08:38
○ 2026-07-30 21:10:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	m.cctld.us, n.cctld.us, y.cctld.us, f.cctld.us...	-
open-source.us	ns5.dynu.com, ns6.dynu.com, ns4.dynu.com, ns3.dynu.com...	-

✅ Authoritative Response

Server:139.162.195.230

NS records: ns5.dynu.com, ns6.dynu.com, ns4.dynu.com, ns3.dynu.com, ns12.dynu.com, ns10.dynu.com, ns1.dynu.com, ns8.dynu.com, ns2.dynu.com, ns9.dynu.com, ns7.dynu.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for open-source.us (unsigned zone)

⏱️ Timing

Total: 1287ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.188.220.155`
NS	6	`ns4.dynu.com, ns2.dynu.com...`
TXT	1	`sish=SHA256:3bPdCUMWld8l0pzUSQGEh3Z8CuR9`
SOA	1	`ns1.dynu.com administrator.dynu.com`

Analysis

IP Addresses

open-source.us resolves to one IP address: 35.188.220.155.

Other host names share IP numbers with open-source.us; 155.220.188.35.bc.googleusercontent.com is one such example.

Name Servers

The DNS delegation for open-source.us covers 11 name servers: ns10.dynu.com, ns12.dynu.com, ns1.dynu.com and 8 more.

The name servers of open-source.us overlap at least partially with those of other domains — among them betasite.ai, fatucloud.gosprout.org, 10messi.com and two more.

These name servers commonly appear in delegations together with ns3.dynu.com, ns2.dynu.com, ns4.dynu.com and 6 other.

Hostnames that resolve to two IP addresses:

ns10.dynu.com maps to two IP addresses — 172.233.50.75 and 2600:3c0e::f03c:94ff:fe92:c82c.

ns12.dynu.com maps to two IP addresses — 139.162.195.230 and 2a01:7e00::f03c:91ff:fedd:6af1.

ns2.dynu.com maps to two IP addresses — 108.181.13.234 and 2602:ff23:0:8888::2.

ns3.dynu.com maps to two IP addresses — 162.251.164.146 and 2605:9f80:4000:214::2.

ns4.dynu.com maps to two IP addresses — 108.181.159.122 and 2604:6600:2000:39::2.

ns5.dynu.com maps to two IP addresses — 216.105.169.98 and 2605:9f80:c000:404::2.

ns6.dynu.com maps to two IP addresses — 173.0.55.138 and 2607:f8f8:631:8612::2.

ns7.dynu.com maps to two IP addresses — 139.162.105.137 and 2400:8902::f03c:91ff:fee5:9f03.

ns8.dynu.com maps to two IP addresses — 172.105.178.214 and 2400:8907::f03c:92ff:fe79:ad70.

ns9.dynu.com maps to two IP addresses — 45.118.133.11 and 2400:8901::f03c:93ff:feed:6cc2.

Hosts with just one IP address:

ns1.dynu.com points to the IP address 72.51.58.2.