`thstudy.com`

DNSSEC	⚠️ Not signed
A	3.170.42.6^{🇺🇸 Amazon3.170.40.0/22}
		PTR	`server-3-170-42-6.iad61.r.cloudfront.net`
A	3.170.42.52^{🇺🇸 Amazon3.170.40.0/22}
A	3.170.42.91^{🇺🇸 Amazon3.170.40.0/22}
A	3.170.42.97^{🇺🇸 Amazon3.170.40.0/22}
NS	`ns-360.awsdns-45.com` ⭐
		A	2600:9000:5301:6800::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-360.awsdns-45.com`
		A	205.251.193.104^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-360.awsdns-45.com`
NS	`ns-1233.awsdns-26.org`
		A	2600:9000:5304:d100::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1233.awsdns-26.org`
		A	205.251.196.209^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1233.awsdns-26.org`
NS	`ns-1889.awsdns-44.co.uk`
		A	2600:9000:5307:6100::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1889.awsdns-44.co.uk`
		A	205.251.199.97^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1889.awsdns-44.co.uk`
NS	`ns-849.awsdns-42.net`
		A	2600:9000:5303:5100::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-849.awsdns-42.net`
		A	205.251.195.81^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-849.awsdns-42.net`
SOA	`ns-360.awsdns-45.com`awsdns-hostmaster@amazon.com serial=1

`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=1771291435

Same first word

thstudy.com

DNS History

19 records (8 active, 11 former)

○NSf1g1ns1.dnspod.net2015-12-16 → 2016-07-08 · 4 obs

● 2015-12-16 16:47:46
● 2016-07-08 15:35:46
○ 2026-02-16 16:46:26
○ 2026-02-25 10:43:56

○NSf1g1ns2.dnspod.net2015-12-16 → 2016-07-08 · 4 obs

● 2015-12-16 16:47:46
● 2016-07-08 15:35:46
○ 2026-02-16 16:46:26
○ 2026-02-25 10:43:56

●NSns-1233.awsdns-26.org2026-02-16 → 2026-02-25 · 3 obs

○ 2016-07-08 15:35:46
● 2026-02-16 16:46:26
● 2026-02-25 10:43:56

●NSns-1889.awsdns-44.co.uk2026-02-16 → 2026-02-25 · 3 obs

○ 2016-07-08 15:35:46
● 2026-02-16 16:46:26
● 2026-02-25 10:43:56

●NSns-360.awsdns-45.com2026-02-16 → 2026-02-25 · 3 obs

○ 2016-07-08 15:35:46
● 2026-02-16 16:46:26
● 2026-02-25 10:43:56

●NSns-849.awsdns-42.net2026-02-16 → 2026-02-25 · 3 obs

○ 2016-07-08 15:35:46
● 2026-02-16 16:46:26
● 2026-02-25 10:43:56

○A108.138.217.102026-02-17 → 2026-02-25 · 38 obs

○ 2026-02-16 22:39:24
● 2026-02-17 00:30:22
● 2026-02-17 05:28:58
○ 2026-02-17 07:07:22
○ 2026-02-17 08:19:02
● 2026-02-17 10:00:52
○ 2026-02-18 00:10:22
● 2026-02-18 06:58:50
○ 2026-02-19 00:09:34
○ 2026-02-19 14:55:12
● 2026-02-19 17:10:12
○ 2026-02-20 00:14:30
● 2026-02-20 00:47:16
● 2026-02-20 01:40:20
○ 2026-02-20 08:42:26
○ 2026-02-20 10:59:40
● 2026-02-20 18:30:28
○ 2026-02-21 01:53:54
○ 2026-02-22 11:21:56
● 2026-02-22 12:31:12
○ 2026-02-22 17:07:50
○ 2026-02-22 21:44:26
● 2026-02-22 22:32:32
○ 2026-02-23 00:12:40
○ 2026-02-23 11:04:42
● 2026-02-23 19:57:26
○ 2026-02-23 20:27:44
○ 2026-02-24 09:47:32
● 2026-02-24 14:46:44
● 2026-02-24 15:40:34
○ 2026-02-24 18:25:58
○ 2026-02-25 00:12:22
● 2026-02-25 02:22:12
○ 2026-02-25 04:24:04
○ 2026-02-25 06:39:16
● 2026-02-25 09:55:46
○ 2026-02-25 10:43:54
○ 2026-02-25 10:43:56

○A108.138.217.1252026-02-17 → 2026-02-25 · 38 obs

○A108.138.217.372026-02-17 → 2026-02-25 · 38 obs

○A108.138.217.702026-02-17 → 2026-02-25 · 38 obs

○A123.1.189.962015-09-02 → 2015-09-02 · 3 obs

● 2015-09-02 09:12:32
○ 2015-12-16 16:47:46
○ 2026-02-25 10:43:56

○A18.164.154.1222026-02-16 → 2026-02-25 · 39 obs

○ 2015-12-16 16:47:46
● 2026-02-16 16:46:26
○ 2026-02-16 22:39:24
○ 2026-02-17 05:28:58
● 2026-02-17 07:07:22
● 2026-02-17 08:19:02
○ 2026-02-17 10:00:52
○ 2026-02-19 00:09:34
● 2026-02-19 01:29:10
○ 2026-02-19 04:40:48
● 2026-02-19 14:55:12
○ 2026-02-19 17:10:12
○ 2026-02-20 01:40:20
● 2026-02-20 08:42:26
● 2026-02-20 10:59:40
○ 2026-02-20 18:30:28
● 2026-02-21 01:53:54
● 2026-02-21 12:21:40
○ 2026-02-21 15:42:48
○ 2026-02-22 00:11:40
● 2026-02-22 06:28:52
○ 2026-02-22 11:21:56
○ 2026-02-22 12:31:12
● 2026-02-22 17:07:50
● 2026-02-22 21:44:26
○ 2026-02-22 22:32:32
○ 2026-02-23 00:12:40
● 2026-02-23 11:04:42
○ 2026-02-23 19:57:26
● 2026-02-23 20:27:44
● 2026-02-24 09:47:32
○ 2026-02-24 14:46:44
○ 2026-02-24 15:40:34
● 2026-02-24 18:25:58
○ 2026-02-25 00:12:22
○ 2026-02-25 04:24:04
● 2026-02-25 06:39:16
○ 2026-02-25 09:55:46
○ 2026-02-25 10:43:56

○A18.164.154.292026-02-16 → 2026-02-25 · 39 obs

○A18.164.154.562026-02-16 → 2026-02-25 · 39 obs

○A18.164.154.732026-02-16 → 2026-02-25 · 39 obs

●A3.170.42.522026-02-16 → 2026-02-25 · 30 obs

○ 2026-02-16 16:46:26
● 2026-02-16 22:39:24
○ 2026-02-17 00:30:22
○ 2026-02-17 10:00:52
● 2026-02-18 00:10:22
○ 2026-02-18 06:58:50
● 2026-02-19 00:09:34
○ 2026-02-19 01:29:10
● 2026-02-19 04:40:48
○ 2026-02-19 14:55:12
○ 2026-02-19 17:10:12
● 2026-02-20 00:14:30
○ 2026-02-20 00:47:16
○ 2026-02-21 12:21:40
● 2026-02-21 15:42:48
● 2026-02-22 00:11:40
○ 2026-02-22 06:28:52
● 2026-02-22 11:21:56
○ 2026-02-22 12:31:12
○ 2026-02-22 22:32:32
● 2026-02-23 00:12:40
○ 2026-02-23 11:04:42
○ 2026-02-24 18:25:58
● 2026-02-25 00:12:22
○ 2026-02-25 02:22:12
● 2026-02-25 04:24:04
○ 2026-02-25 06:39:16
○ 2026-02-25 09:55:46
● 2026-02-25 10:43:54
● 2026-02-25 10:43:56

●A3.170.42.62026-02-16 → 2026-02-25 · 30 obs

●A3.170.42.912026-02-16 → 2026-02-25 · 30 obs

●A3.170.42.972026-02-16 → 2026-02-25 · 30 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net...	-
thstudy.com	ns-360.awsdns-45.com, ns-849.awsdns-42.net, ns-1233.awsdns-26.org, ns-1889.awsdns-44.co.uk	1 record