`tiger21.com`

DNSSEC	⚠️ Not signed
A	2606:4700:10::6814:1744^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:10::ac42:af9b^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.20.23.68^{Cloudflare104.20.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.175.155^{🇺🇸 Cloudflare172.66.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ns1.tiger21.com` ⭐
		A	2400:cb00:2049:1::a29f:93b^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.9.59^{Cloudflare162.159.9.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.tiger21.com`
		A	2400:cb00:2049:1::a29f:ad6^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.214^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns3.tiger21.com`
		A	2400:cb00:2049:1::adf5:3b07^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.59.7^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`tiger21-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::14^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-byapr04cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:c931::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr03cu00201.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch4pr04cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr02cu00101.inbound.protection.outlook.com`
		A	52.101.8.34^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm2pr04cu00102.inbound.protection.outlook.com`
		A	52.101.10.6^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn1pr21cu00106.inbound.protection.outlook.com`
		A	52.101.11.19^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sa9pr04cu00203.inbound.protection.outlook.com`
		A	52.101.50.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr03cu00404.inbound.protection.outlook.com`
TXT	`30cabe18-ec65-4a08-bf91-f8254da5d290`
TXT	`SFMC-BkebbEpMOPjE4cwMcd8YHZnJOo24CBTBtp9gb__D`
TXT	`ZOOM_verify_ffb-6VfZQcu_Vw_0w0E-Fw`
TXT	`ZOOM_verify_vzGbdXq4RC6qMFGjfwcoiw`
TXT	`adobe-idp-site-verification=4417eb6c58ad5467f9378517fd8c3c18530cf36e55b63fe92...`
TXT	`anthropic-domain-verification-x6n9q2=qsrWSKq6vsZzgnjoB0E1jSliZ`
TXT	`atlassian-domain-verification=anK6LgnQrWoOIgFB6pjocUpLNlAyNQ6fRHqUdvbqILaRN0U...`
TXT	`atlassian-sending-domain-verification=c7c6c2e5-3364-4e30-852b-4a74844a519d`
TXT	`bw=TsHnRjMhF2haxfbfldGdvIIAyLYNUZwGXa6ApFSHIKO3`
TXT	`pardot1084312=b78f2f25ec90473dd7af076d25433cc4b9c0784a8ce5019ec1ee839bb273a7e0`
TXT	`secureframe-domain-verification-qt9cvx=jUwghVIbMdk8tNvOljF63KEfo`
TXT	`sending_domain1084312=a42bcd91af1575f4778fbce3fe519aee29deae37e5e74c4f1866cef...`
TXT	`sophos-domain-verification=f5b3316e33c66b017f498174c81a4d48f1476cdc93344f0a9d...`
TXT	`v=spf1 include:spf.protection.outlook.com include:u8028796.wl047.sendgrid.net...`
HTTPS	HTTP/2 ✓ hints match
		IPv4	104.20.23.68, 172.66.175.155
		IPv6	2606:4700:10::6814:1744, 2606:4700:10::ac42:af9b
SOA	`ns1.tiger21.com`dns@cloudflare.com serial=2400094849

`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=1774660512

rank #526685 globally
rank #235591 in the tld
📈 Tranco rank: #646,725

Subdomains

ns1.tiger21.com

ns2.tiger21.com

ns3.tiger21.com

Same first word

tiger21.com

Similar names

21tiger.com

DNS History

16 records (8 active, 8 former)

●NSns1.tiger21.com2026-03-27 → 2026-03-28 · 3 obs

○ 2017-05-07 22:26:38
● 2026-03-27 17:35:16
● 2026-03-28 01:16:24

○NSns11.worldnic.com2015-07-16 → 2017-05-07 · 4 obs

● 2015-07-16 02:06:48
● 2017-05-07 22:26:38
○ 2026-03-27 17:35:16
○ 2026-03-28 01:16:24

○NSns12.worldnic.com2015-07-16 → 2017-05-07 · 4 obs

● 2015-07-16 02:06:48
● 2017-05-07 22:26:38
○ 2026-03-27 17:35:16
○ 2026-03-28 01:16:24

●NSns2.tiger21.com2026-03-27 → 2026-03-28 · 3 obs

○ 2017-05-07 22:26:38
● 2026-03-27 17:35:16
● 2026-03-28 01:16:24

●NSns3.tiger21.com2026-03-27 → 2026-03-28 · 3 obs

○ 2017-05-07 22:26:38
● 2026-03-27 17:35:16
● 2026-03-28 01:16:24

●MXtiger21-com.mail.protection.outlook.com2017-04-04 → 2026-03-28 · 3 obs

○ 2016-08-13 18:28:58
● 2017-04-04 14:31:38
● 2026-03-28 01:16:24

○MXtiger21.com.inbound10.mxlogic.net2015-07-16 → 2016-08-13 · 4 obs

● 2015-07-16 02:06:48
● 2016-08-13 18:28:58
○ 2017-04-04 14:31:38
○ 2026-03-28 01:16:24

○MXtiger21.com.inbound10.mxlogicmx.net2015-07-16 → 2016-08-13 · 4 obs

● 2015-07-16 02:06:48
● 2016-08-13 18:28:58
○ 2017-04-04 14:31:38
○ 2026-03-28 01:16:24

●A104.20.23.682026-03-27 → 2026-03-28 · 3 obs

○ 2017-05-07 22:26:38
● 2026-03-27 17:35:16
● 2026-03-28 01:16:24

○A107.154.138.1822017-05-07 → 2017-05-07 · 4 obs

○ 2017-04-04 14:31:38
● 2017-05-07 22:26:38
○ 2026-03-27 17:35:16
○ 2026-03-28 01:16:24

○A107.154.141.1822017-05-07 → 2017-05-07 · 4 obs

○ 2017-04-04 14:31:38
● 2017-05-07 22:26:38
○ 2026-03-27 17:35:16
○ 2026-03-28 01:16:24

○A161.47.20.1282016-08-13 → 2017-04-04 · 5 obs

○ 2016-02-26 19:28:34
● 2016-08-13 18:28:58
● 2017-04-04 14:31:38
○ 2017-05-07 22:26:38
○ 2026-03-28 01:16:24

●A172.66.175.1552026-03-27 → 2026-03-28 · 3 obs

○ 2017-05-07 22:26:38
● 2026-03-27 17:35:16
● 2026-03-28 01:16:24

○A173.239.41.2222015-07-16 → 2016-02-26 · 4 obs

● 2015-07-16 02:06:48
● 2016-02-26 19:28:34
○ 2016-08-13 18:28:58
○ 2026-03-28 01:16:24

●A2606:4700:10::6814:17442026-03-27 → 2026-03-28 · 3 obs

○ 2017-05-07 22:26:38
● 2026-03-27 17:35:16
● 2026-03-28 01:16:24

●A2606:4700:10::ac42:af9b2026-03-27 → 2026-03-28 · 3 obs

○ 2017-05-07 22:26:38
● 2026-03-27 17:35:16
● 2026-03-28 01:16:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tiger21.com	ns1.tiger21.com, ns2.tiger21.com, ns3.tiger21.com	3 records

✅ Authoritative Response

Server:162.159.9.59

NS records: ns1.tiger21.com, ns2.tiger21.com, ns3.tiger21.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tiger21.com (unsigned zone)

⏱️ Timing

Total: 194ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.66.175.155, 104.20.23.68`
AAAA	2	`2606:4700:10::6814:1744, 2606:4700:10::ac42:af9b`
NS	3	`ns1.tiger21.com, ns2.tiger21.com...`
MX	1	`tiger21-com.mail.protection.outlook.com`
TXT	14	`30cabe18-ec65-4a08-bf91-f8254da5d290, SFMC-BkebbEpMOPjE4cwMcd8YHZnJOo24CBTBtp9...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`ns1.tiger21.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 3

In-bailiwick: 3 (ns1.tiger21.com, ns2.tiger21.com, ns3.tiger21.com)

Analysis

Hierarchy

tiger21.com is a parent of ns1.tiger21.com, ns2.tiger21.com and ns3.tiger21.com.

IP Addresses

tiger21.com resolves to four IP numbers: 2606:4700:10::6814:1744, 2606:4700:10::ac42:af9b, 104.20.23.68 and 172.66.175.155.

other host names for instance crankyship.com, aligneddc.com, geba.com, www.crankyship.com and wondereur.com share IP numbers with tiger21.com.

Name Servers

tiger21.com is delegated to three name servers: ns1.tiger21.com, ns2.tiger21.com and ns3.tiger21.com.

Host names with two IP numbers:

Host ns1.tiger21.com points to 2400:cb00:2049:1::a29f:93b and 162.159.9.59.

Host ns2.tiger21.com points to 2400:cb00:2049:1::a29f:ad6 and 162.159.10.214.

Host ns3.tiger21.com points to 2400:cb00:2049:1::adf5:3b07 and 173.245.59.7.

Mail Servers

tiger21.com is handled by a single mail server, tiger21-com.mail.protection.outlook.com.

Host name tiger21-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::14, 2a01:111:f403:c931::1, 2a01:111:f403:c946::2, 2a01:111:f403:f902::1, 52.101.8.34, 52.101.10.6, 52.101.11.19 and 52.101.50.4.

tiger21.com - robtex.com

tiger21.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`tiger21.com`

`com`