`thinkopensystems.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:b1a1^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:23a1^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.35.161^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.177.161^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amber.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a40^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amber.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c040^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amber.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2040^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amber.ns.cloudflare.com`
		A	108.162.192.64^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amber.ns.cloudflare.com`
		A	172.64.32.64^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amber.ns.cloudflare.com`
		A	173.245.58.64^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amber.ns.cloudflare.com`
NS	`scott.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`scott.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`scott.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`scott.ns.cloudflare.com`
		A	108.162.193.230^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`scott.ns.cloudflare.com`
		A	172.64.33.230^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`scott.ns.cloudflare.com`
		A	173.245.59.230^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`scott.ns.cloudflare.com`
MX	`thinkopensystems-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc2c::^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma0pr01cu01000.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2c::1^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma0pr01cu01101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2d::^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-pnzpr01cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2d::1^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-pnypr01cu00201.inbound.protection.outlook.com`
		A	52.101.144.0^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma0pr01cu01000.inbound.protection.outlook.com`
		A	52.101.144.3^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma0pr01cu01103.inbound.protection.outlook.com`
		A	52.101.145.0^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pnzpr01cu00200.inbound.protection.outlook.com`
		A	52.101.145.2^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pnypr01cu00202.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.35.161, 172.67.177.161
		IPv6 hints	2606:4700:3031::ac43:b1a1, 2606:4700:3033::6815:23a1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=211, name=cloudflare-ech.com
SOA	`amber.ns.cloudflare.com`dns@cloudflare.com serial=2399622794

`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=1775983122

Same first word

thinkopensystems.com

DNS History

11 records (7 active, 4 former)

●NSamber.ns.cloudflare.com2026-04-10 → 2026-04-12 · 3 obs

○ 2017-06-29 16:42:02
● 2026-04-10 21:59:26
● 2026-04-12 08:57:50

○NSns17.ixwebhosting.com2015-06-05 → 2017-06-29 · 4 obs

● 2015-06-05 19:40:22
● 2017-06-29 16:42:02
○ 2026-04-10 21:59:26
○ 2026-04-12 08:57:50

○NSns18.ixwebhosting.com2015-06-05 → 2017-06-29 · 4 obs

● 2015-06-05 19:40:22
● 2017-06-29 16:42:02
○ 2026-04-10 21:59:26
○ 2026-04-12 08:57:50

●NSscott.ns.cloudflare.com2026-04-10 → 2026-04-12 · 3 obs

○ 2017-06-29 16:42:02
● 2026-04-10 21:59:26
● 2026-04-12 08:57:50

○MXmail904.ixwebhosting.com2015-06-05 → 2017-06-29 · 4 obs

● 2015-06-05 19:40:22
● 2017-06-29 16:42:02
○ 2026-04-10 21:59:26
○ 2026-04-12 08:57:50

●MXthinkopensystems-com.mail.protection.outlook.com2026-04-10 → 2026-04-12 · 3 obs

○ 2017-06-29 16:42:02
● 2026-04-10 21:59:26
● 2026-04-12 08:57:50

●A104.21.35.1612026-04-10 → 2026-04-12 · 3 obs

○ 2017-06-29 16:42:02
● 2026-04-10 21:59:26
● 2026-04-12 08:57:50

●A172.67.177.1612026-04-10 → 2026-04-12 · 3 obs

○ 2017-06-29 16:42:02
● 2026-04-10 21:59:26
● 2026-04-12 08:57:50

●A2606:4700:3031::ac43:b1a12026-04-10 → 2026-04-12 · 3 obs

○ 2017-06-29 16:42:02
● 2026-04-10 21:59:26
● 2026-04-12 08:57:50

●A2606:4700:3033::6815:23a12026-04-10 → 2026-04-12 · 3 obs

○ 2017-06-29 16:42:02
● 2026-04-10 21:59:26
● 2026-04-12 08:57:50

○A69.6.198.2052015-06-05 → 2017-06-29 · 4 obs

● 2015-06-05 19:40:22
● 2017-06-29 16:42:02
○ 2026-04-10 21:59:26
○ 2026-04-12 08:57:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
thinkopensystems.com	amber.ns.cloudflare.com, scott.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.64

NS records: amber.ns.cloudflare.com, scott.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thinkopensystems.com (unsigned zone)

⏱️ Timing

Total: 107ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.177.161, 104.21.35.161`
AAAA	2	`2606:4700:3031::ac43:b1a1, 2606:4700:3033::6815:23a1`
NS	2	`amber.ns.cloudflare.com, scott.ns.cloudflare.com`
MX	1	`thinkopensystems-com.mail.protection.out`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amber.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (amber.ns.cloudflare.com, amber.ns.cloudflare.com, amber.ns.cloudflare.com...)

Analysis

IP Addresses

thinkopensystems.com points to four IP numbers: 2606:4700:3031::ac43:b1a1, 2606:4700:3033::6815:23a1, 104.21.35.161 and 172.67.177.161.

Other host names, for instance www.gibb.se, hygienesystem.it, dbserp.com, 0f.lv and dboomega.com share IP numbers with thinkopensystems.com.

Name Servers

thinkopensystems.com's delegation is to two name servers amber.ns.cloudflare.com and scott.ns.cloudflare.com.

thinkopensystems.com shares the same name server configuration as other domains, such as aanwire.com, lakesideofficecenter.com, closeoutcues.com, cedarburgenterprises.com and akdealsonline.com.

thinkopensystems.com at least partially shares its name servers with other domains, for instance usdcworld.online, cloud-files.xyz, lilyease.com, krak53.cc and coral-gables-home-remodeling.com.

These name servers are often used together with the name servers isla.ns.cloudflare.com.

Host names with six IP numbers:

amber.ns.cloudflare.com points to: 2606:4700:50::adf5:3a40, 2803:f800:50::6ca2:c040, 2a06:98c1:50::ac40:2040, 108.162.192.64, 172.64.32.64 and 173.245.58.64.

scott.ns.cloudflare.com points to: 2606:4700:58::adf5:3be6, 2803:f800:50::6ca2:c1e6, 2a06:98c1:50::ac40:21e6, 108.162.193.230, 172.64.33.230 and 173.245.59.230.

Mail Servers

thinkopensystems.com is served by a single mail server, thinkopensystems-com.mail.protection.outlook.com.

The host name thinkopensystems-com.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:cc2c::, 2a01:111:f403:cc2c::1, 2a01:111:f403:cc2d::, 2a01:111:f403:cc2d::1, 52.101.144.0, 52.101.144.3, 52.101.145.0 and 52.101.145.2.

thinkopensystems.com - robtex.com