teacherstack.com - dns.ninja

`teacherstack.com`

DNSSEC	⚠️ Not signed
A	3.167.56.25^{🇺🇸 Amazon3.167.56.0/23}
		PTR	`server-3-167-56-25.iad61.r.cloudfront.net`
A	3.167.56.39^{🇺🇸 Amazon3.167.56.0/23}
A	3.167.56.71^{🇺🇸 Amazon3.167.56.0/23}
A	3.167.56.84^{🇺🇸 Amazon3.167.56.0/23}
NS	`ns-573.awsdns-07.net` ⭐
		A	2600:9000:5302:3d00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-573.awsdns-07.net`
		A	205.251.194.61^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-573.awsdns-07.net`
NS	`ns-1430.awsdns-50.org`
		A	2600:9000:5305:9600::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1430.awsdns-50.org`
		A	205.251.197.150^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1430.awsdns-50.org`
NS	`ns-1539.awsdns-00.co.uk`
		A	2600:9000:5306:300::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1539.awsdns-00.co.uk`
		A	205.251.198.3^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1539.awsdns-00.co.uk`
NS	`ns-91.awsdns-11.com`
		A	2600:9000:5300:5b00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-91.awsdns-11.com`
		A	205.251.192.91^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-91.awsdns-11.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	2607:f8b0:4004:c25::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadtq-in-f26.1e100.net`
		A	2607:f8b0:4004:c29::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f26.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
		A	142.251.167.26^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f26.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
		A	192.178.218.27^{🇺🇸 Google192.178.218.0/24}
			PTR	`yuiadtq-in-f27.1e100.net`
TXT	`google-site-verification=p2N0rsuVGfH-xMqmw87aNQe5-Kg892Cx1q0KZl-4ZH0`
TXT	`v=spf1 include:_spf.google.com include:amazonses.com ~all`
SOA	`ns-573.awsdns-07.net`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=1781883300

Subdomains

app.teacherstack.com

Same first word

teacherstack.com

DNS History

98 records (9 active, 89 former)

○NSbuy.internettraffic.com2015-07-07 → 2016-02-05 · 4 obs

● 2015-07-07 13:28:26
● 2016-02-05 12:58:08
○ 2016-04-25 18:19:10
○ 2026-06-19 16:03:38

●NSns-1430.awsdns-50.org2026-02-16 → 2026-06-19 · 3 obs

○ 2017-09-05 12:40:50
● 2026-02-16 07:21:16
● 2026-06-19 16:03:38

●NSns-1539.awsdns-00.co.uk2026-02-16 → 2026-06-19 · 3 obs

○ 2017-09-05 12:40:50
● 2026-02-16 07:21:16
● 2026-06-19 16:03:38

●NSns-573.awsdns-07.net2026-02-16 → 2026-06-19 · 3 obs

○ 2017-09-05 12:40:50
● 2026-02-16 07:21:16
● 2026-06-19 16:03:38

●NSns-91.awsdns-11.com2026-02-16 → 2026-06-19 · 3 obs

○ 2017-09-05 12:40:50
● 2026-02-16 07:21:16
● 2026-06-19 16:03:38

○NSns11.domaincontrol.com2016-12-05 → 2017-09-05 · 5 obs

○ 2016-04-25 18:19:10
● 2016-12-05 22:22:58
● 2017-09-05 12:40:50
○ 2026-02-16 07:21:16
○ 2026-06-19 16:03:38

○NSns12.domaincontrol.com2016-12-05 → 2017-09-05 · 5 obs

○ 2016-04-25 18:19:10
● 2016-12-05 22:22:58
● 2017-09-05 12:40:50
○ 2026-02-16 07:21:16
○ 2026-06-19 16:03:38

○NSsell.internettraffic.com2015-07-07 → 2016-02-05 · 4 obs

● 2015-07-07 13:28:26
● 2016-02-05 12:58:08
○ 2016-04-25 18:19:10
○ 2026-06-19 16:03:38

○MXmailstore1.secureserver.net2016-12-05 → 2017-09-05 · 4 obs

● 2016-12-05 22:22:58
● 2017-09-05 12:40:50
○ 2026-02-16 07:21:16
○ 2026-06-19 16:03:38

●MXsmtp.google.com2026-02-16 → 2026-06-19 · 3 obs

○ 2017-09-05 12:40:50
● 2026-02-16 07:21:16
● 2026-06-19 16:03:38

○MXsmtp.secureserver.net2016-12-05 → 2017-09-05 · 4 obs

● 2016-12-05 22:22:58
● 2017-09-05 12:40:50
○ 2026-02-16 07:21:16
○ 2026-06-19 16:03:38

○A108.139.119.352026-04-07 → 2026-05-18 · 34 obs

○ 2026-04-07 19:58:32
● 2026-04-07 22:26:00
○ 2026-04-08 01:10:54
○ 2026-04-08 21:29:12
● 2026-04-09 00:06:14
○ 2026-04-09 02:29:10
○ 2026-04-09 08:14:58
● 2026-04-09 15:23:08
○ 2026-04-09 17:10:34
● 2026-04-09 23:00:42
○ 2026-04-10 00:15:28
○ 2026-04-12 07:44:24
● 2026-04-12 10:32:52
○ 2026-04-12 12:45:06
● 2026-04-12 17:51:28
○ 2026-04-12 18:28:44
○ 2026-04-14 06:56:28
● 2026-04-14 18:06:08
○ 2026-04-14 20:10:02
○ 2026-04-16 23:09:16
● 2026-04-17 02:30:14
○ 2026-04-17 03:52:00
○ 2026-04-18 00:11:18
● 2026-04-18 02:51:44
● 2026-04-18 04:05:32
○ 2026-04-18 10:43:38
○ 2026-04-19 22:03:04
● 2026-04-19 23:32:50
○ 2026-04-20 07:14:04
○ 2026-05-18 21:23:56
● 2026-05-18 23:13:18
● 2026-05-18 23:59:06
○ 2026-05-19 04:08:36
○ 2026-06-19 16:03:38

○A108.139.119.762026-04-07 → 2026-05-18 · 34 obs

○A108.139.119.822026-04-07 → 2026-05-18 · 34 obs

○A108.139.119.872026-04-07 → 2026-05-18 · 34 obs

○A108.139.166.1272026-04-04 → 2026-04-29 · 7 obs

○ 2026-04-04 00:56:08
● 2026-04-04 05:16:56
○ 2026-04-04 13:39:06
○ 2026-04-29 06:42:52
● 2026-04-29 09:34:50
○ 2026-04-29 13:08:18
○ 2026-06-19 16:03:38

○A108.139.166.22026-04-04 → 2026-04-29 · 7 obs

○ 2026-04-04 00:56:08
● 2026-04-04 05:16:56
○ 2026-04-04 13:39:06
○ 2026-04-29 06:42:52
● 2026-04-29 09:34:50
○ 2026-04-29 13:08:18
○ 2026-06-19 16:03:38

○A108.139.166.462026-04-04 → 2026-04-29 · 7 obs

○ 2026-04-04 00:56:08
● 2026-04-04 05:16:56
○ 2026-04-04 13:39:06
○ 2026-04-29 06:42:52
● 2026-04-29 09:34:50
○ 2026-04-29 13:08:18
○ 2026-06-19 16:03:38

○A108.139.166.62026-04-04 → 2026-04-29 · 7 obs

○ 2026-04-04 00:56:08
● 2026-04-04 05:16:56
○ 2026-04-04 13:39:06
○ 2026-04-29 06:42:52
● 2026-04-29 09:34:50
○ 2026-04-29 13:08:18
○ 2026-06-19 16:03:38

○A108.156.85.1072026-06-16 → 2026-06-18 · 8 obs

○ 2026-06-16 10:41:48
● 2026-06-16 14:18:00
○ 2026-06-16 15:16:22
○ 2026-06-16 21:08:38
● 2026-06-16 23:12:12
● 2026-06-18 03:05:12
○ 2026-06-18 04:29:34
○ 2026-06-19 16:03:38

○A108.156.85.1092026-06-16 → 2026-06-18 · 8 obs

○ 2026-06-16 10:41:48
● 2026-06-16 14:18:00
○ 2026-06-16 15:16:22
○ 2026-06-16 21:08:38
● 2026-06-16 23:12:12
● 2026-06-18 03:05:12
○ 2026-06-18 04:29:34
○ 2026-06-19 16:03:38

○A108.156.85.852026-06-16 → 2026-06-18 · 8 obs

○ 2026-06-16 10:41:48
● 2026-06-16 14:18:00
○ 2026-06-16 15:16:22
○ 2026-06-16 21:08:38
● 2026-06-16 23:12:12
● 2026-06-18 03:05:12
○ 2026-06-18 04:29:34
○ 2026-06-19 16:03:38

○A108.156.85.922026-06-16 → 2026-06-18 · 8 obs

○ 2026-06-16 10:41:48
● 2026-06-16 14:18:00
○ 2026-06-16 15:16:22
○ 2026-06-16 21:08:38
● 2026-06-16 23:12:12
● 2026-06-18 03:05:12
○ 2026-06-18 04:29:34
○ 2026-06-19 16:03:38

○A108.156.91.102026-05-19 → 2026-06-08 · 69 obs

○ 2026-05-19 04:08:36
● 2026-05-19 09:20:42
● 2026-05-19 12:14:22
○ 2026-05-19 16:39:50
○ 2026-05-20 03:44:50
● 2026-05-20 04:45:34
● 2026-05-20 22:28:16
○ 2026-05-21 03:35:22
● 2026-05-21 04:17:46
● 2026-05-22 00:24:12
○ 2026-05-22 04:03:04
○ 2026-05-22 04:49:08
● 2026-05-22 11:54:08
● 2026-05-23 06:36:04
○ 2026-05-23 08:59:20
● 2026-05-23 13:41:32
● 2026-05-23 16:10:20
○ 2026-05-23 17:05:56
● 2026-05-23 18:10:34
● 2026-05-26 11:49:18
○ 2026-05-26 14:19:54
● 2026-05-26 16:06:54
○ 2026-05-26 18:54:52
● 2026-05-26 21:12:38
● 2026-05-27 07:03:42
○ 2026-05-27 07:52:58
● 2026-05-27 09:58:32
● 2026-05-27 21:08:00
○ 2026-05-28 04:21:42
● 2026-05-28 04:53:34
● 2026-05-28 11:53:48
○ 2026-05-28 12:55:12
○ 2026-05-28 15:01:34
● 2026-05-28 15:33:30
● 2026-05-29 05:03:28
○ 2026-05-29 07:51:34
○ 2026-05-30 07:19:14
● 2026-05-30 08:38:04
● 2026-05-31 10:42:14
○ 2026-05-31 13:13:14
○ 2026-06-01 22:01:18
● 2026-06-01 23:03:50
● 2026-06-02 06:24:00
○ 2026-06-02 08:15:18
● 2026-06-02 09:18:34
● 2026-06-02 16:57:10
○ 2026-06-02 20:38:30
● 2026-06-02 23:20:40
○ 2026-06-03 05:27:36
○ 2026-06-03 10:09:02
● 2026-06-03 11:45:34
○ 2026-06-03 13:45:48
● 2026-06-03 14:51:24
● 2026-06-03 16:16:50
○ 2026-06-03 22:26:52
● 2026-06-04 01:19:32
● 2026-06-04 12:56:18
○ 2026-06-04 16:21:34
● 2026-06-04 17:27:00
● 2026-06-04 18:34:10
○ 2026-06-05 21:05:26
○ 2026-06-06 02:13:22
● 2026-06-06 02:46:48
● 2026-06-07 05:21:06
○ 2026-06-07 08:42:38
● 2026-06-07 10:30:48
● 2026-06-08 04:58:00
○ 2026-06-08 14:58:20
○ 2026-06-19 16:03:38

○A108.156.91.872026-05-19 → 2026-06-08 · 69 obs

○A108.156.91.922026-05-19 → 2026-06-08 · 69 obs

○A108.156.91.982026-05-19 → 2026-06-08 · 69 obs

○A108.158.122.1082026-04-11 → 2026-04-11 · 4 obs

○ 2026-04-11 15:34:24
● 2026-04-11 16:14:20
○ 2026-04-12 01:35:08
○ 2026-06-19 16:03:38

○A108.158.122.682026-04-11 → 2026-04-11 · 4 obs

○ 2026-04-11 15:34:24
● 2026-04-11 16:14:20
○ 2026-04-12 01:35:08
○ 2026-06-19 16:03:38

○A108.158.122.72026-04-11 → 2026-04-11 · 4 obs

○ 2026-04-11 15:34:24
● 2026-04-11 16:14:20
○ 2026-04-12 01:35:08
○ 2026-06-19 16:03:38

○A108.158.122.722026-04-11 → 2026-04-11 · 4 obs

○ 2026-04-11 15:34:24
● 2026-04-11 16:14:20
○ 2026-04-12 01:35:08
○ 2026-06-19 16:03:38

○A13.225.239.1042026-05-04 → 2026-05-04 · 4 obs

○ 2026-05-04 07:28:14
● 2026-05-04 13:32:14
○ 2026-05-04 14:51:08
○ 2026-06-19 16:03:38

○A13.225.239.82026-05-04 → 2026-05-04 · 4 obs

○ 2026-05-04 07:28:14
● 2026-05-04 13:32:14
○ 2026-05-04 14:51:08
○ 2026-06-19 16:03:38

○A13.225.239.92026-05-04 → 2026-05-04 · 4 obs

○ 2026-05-04 07:28:14
● 2026-05-04 13:32:14
○ 2026-05-04 14:51:08
○ 2026-06-19 16:03:38

○A13.225.239.902026-05-04 → 2026-05-04 · 4 obs

○ 2026-05-04 07:28:14
● 2026-05-04 13:32:14
○ 2026-05-04 14:51:08
○ 2026-06-19 16:03:38

○A13.249.182.1212026-02-19 → 2026-03-25 · 47 obs

○ 2026-02-19 04:37:34
● 2026-02-19 13:09:56
○ 2026-02-20 04:37:46
○ 2026-02-21 16:15:34
● 2026-02-22 05:15:06
○ 2026-02-22 10:34:58
○ 2026-02-22 23:12:00
● 2026-02-24 10:14:10
● 2026-02-25 05:27:42
○ 2026-02-25 11:00:24
○ 2026-02-26 10:52:40
● 2026-02-26 18:18:08
○ 2026-02-26 19:57:14
○ 2026-03-06 03:50:58
● 2026-03-06 07:54:22
○ 2026-03-06 10:17:58
● 2026-03-06 21:24:10
○ 2026-03-07 00:37:02
○ 2026-03-10 03:49:24
● 2026-03-10 08:15:42
○ 2026-03-10 09:08:46
○ 2026-03-13 14:01:36
● 2026-03-13 19:12:02
○ 2026-03-13 22:01:22
○ 2026-03-14 19:52:58
● 2026-03-14 20:52:54
● 2026-03-14 22:11:12
○ 2026-03-14 22:48:28
○ 2026-03-16 00:12:06
● 2026-03-16 02:59:58
○ 2026-03-16 03:37:28
○ 2026-03-17 03:51:32
● 2026-03-17 04:26:16
○ 2026-03-17 04:59:00
○ 2026-03-17 16:37:00
● 2026-03-17 22:31:48
○ 2026-03-18 02:12:54
○ 2026-03-18 13:42:36
● 2026-03-18 14:21:52
○ 2026-03-18 19:50:32
○ 2026-03-19 20:50:20
● 2026-03-19 21:55:58
○ 2026-03-20 03:16:26
○ 2026-03-25 02:02:06
● 2026-03-25 10:10:54
○ 2026-03-25 16:32:52
○ 2026-06-19 16:03:38

○A13.249.182.1222026-02-19 → 2026-03-25 · 47 obs

○A13.249.182.202026-02-19 → 2026-03-25 · 47 obs

○A13.249.182.292026-02-19 → 2026-03-25 · 47 obs

○A13.32.179.1142026-03-31 → 2026-06-19 · 24 obs

○ 2026-03-31 10:53:06
● 2026-03-31 17:31:20
○ 2026-03-31 18:28:02
○ 2026-04-01 01:20:58
● 2026-04-01 02:07:32
● 2026-04-01 07:39:48
○ 2026-04-01 13:19:44
● 2026-04-01 15:48:26
○ 2026-04-01 20:20:06
○ 2026-04-03 11:47:28
● 2026-04-03 19:57:26
○ 2026-04-04 00:11:46
○ 2026-04-07 01:09:22
● 2026-04-07 06:33:42
○ 2026-04-07 07:29:16
○ 2026-04-07 14:22:24
● 2026-04-07 15:48:10
○ 2026-04-07 17:52:54
○ 2026-06-18 03:05:12
● 2026-06-18 04:29:34
○ 2026-06-18 22:43:08
● 2026-06-19 01:11:08
○ 2026-06-19 03:06:26
○ 2026-06-19 16:03:38

○A13.32.179.132026-03-31 → 2026-06-19 · 24 obs

○A13.32.179.362026-03-31 → 2026-06-19 · 24 obs

○A13.32.179.792026-03-31 → 2026-06-19 · 24 obs

○A13.33.129.32026-04-22 → 2026-06-01 · 38 obs

○ 2026-04-22 10:33:54
● 2026-04-22 18:34:48
○ 2026-04-22 21:03:46
○ 2026-04-22 22:40:04
● 2026-04-22 23:28:44
○ 2026-04-23 02:35:30
○ 2026-05-06 09:49:58
● 2026-05-06 14:22:50
○ 2026-05-06 16:04:22
● 2026-05-06 16:37:16
● 2026-05-06 18:28:48
○ 2026-05-06 19:37:22
○ 2026-05-09 10:01:30
● 2026-05-10 01:43:42
○ 2026-05-10 02:27:06
○ 2026-05-11 05:18:18
● 2026-05-11 06:00:28
○ 2026-05-11 07:29:10
○ 2026-05-11 09:01:56
● 2026-05-11 13:12:06
○ 2026-05-11 13:58:12
○ 2026-05-11 15:44:28
● 2026-05-11 16:16:18
○ 2026-05-11 16:49:58
○ 2026-05-13 00:48:30
● 2026-05-13 07:40:28
○ 2026-05-13 08:45:40
○ 2026-05-13 12:34:18
● 2026-05-13 17:16:42
● 2026-05-13 18:08:04
○ 2026-05-13 23:59:50
○ 2026-05-18 12:18:12
● 2026-05-18 17:15:56
○ 2026-05-18 18:35:34
○ 2026-06-01 16:24:20
● 2026-06-01 22:01:18
○ 2026-06-01 23:03:50
○ 2026-06-19 16:03:38

○A13.33.129.472026-04-22 → 2026-06-01 · 38 obs

○A13.33.129.602026-04-22 → 2026-06-01 · 38 obs

○A13.33.129.852026-04-22 → 2026-06-01 · 38 obs

○A13.33.235.1042026-03-22 → 2026-03-27 · 11 obs

○ 2026-03-22 06:47:56
● 2026-03-22 10:08:28
○ 2026-03-22 14:32:40
○ 2026-03-24 06:15:30
● 2026-03-24 11:33:48
● 2026-03-24 13:09:16
○ 2026-03-24 22:01:48
○ 2026-03-27 07:43:46
● 2026-03-27 08:21:20
○ 2026-03-27 08:52:22
○ 2026-06-19 16:03:38

○A13.33.235.182026-03-22 → 2026-03-27 · 11 obs

○A13.33.235.732026-03-22 → 2026-03-27 · 11 obs

○A13.33.235.82026-03-22 → 2026-03-27 · 11 obs

○A13.35.163.1042026-05-27 → 2026-06-03 · 10 obs

○ 2026-05-27 07:03:42
● 2026-05-27 07:52:58
○ 2026-05-27 09:58:32
○ 2026-05-31 17:58:58
● 2026-06-01 07:05:40
○ 2026-06-01 10:43:44
○ 2026-06-03 11:45:34
● 2026-06-03 13:45:48
○ 2026-06-03 14:51:24
○ 2026-06-19 16:03:38

○A13.35.163.1182026-05-27 → 2026-06-03 · 10 obs

○A13.35.163.1292026-05-27 → 2026-06-03 · 10 obs

○A13.35.163.502026-05-27 → 2026-06-03 · 10 obs

○A143.204.68.592026-02-18 → 2026-03-26 · 31 obs

○ 2026-02-18 04:48:26
● 2026-02-18 22:51:36
○ 2026-02-19 04:37:34
○ 2026-02-19 13:09:56
● 2026-02-20 04:37:46
● 2026-02-21 11:02:16
○ 2026-02-21 16:15:34
○ 2026-02-22 05:15:06
● 2026-02-22 10:34:58
● 2026-02-22 23:12:00
○ 2026-02-24 10:14:10
○ 2026-02-25 05:27:42
● 2026-02-25 11:00:24
● 2026-02-25 17:20:36
○ 2026-02-26 10:52:40
○ 2026-02-26 18:18:08
● 2026-02-26 19:57:14
● 2026-03-06 03:50:58
○ 2026-03-06 07:54:22
● 2026-03-06 10:17:58
○ 2026-03-06 21:24:10
○ 2026-03-07 03:27:58
● 2026-03-07 11:19:00
○ 2026-03-08 00:11:02
● 2026-03-08 06:12:52
● 2026-03-08 22:05:50
○ 2026-03-09 00:13:40
○ 2026-03-26 03:46:00
● 2026-03-26 04:18:18
○ 2026-03-26 05:29:14
○ 2026-06-19 16:03:38

○A143.204.68.642026-02-18 → 2026-03-26 · 31 obs

○A143.204.68.672026-02-18 → 2026-03-26 · 31 obs

○A143.204.68.692026-02-18 → 2026-03-26 · 31 obs

○A18.164.96.1002026-02-16 → 2026-03-22 · 19 obs

○ 2017-09-05 12:40:50
● 2026-02-16 07:21:16
○ 2026-02-16 10:46:06
○ 2026-03-07 11:19:00
● 2026-03-08 00:11:02
○ 2026-03-08 06:12:52
○ 2026-03-13 03:26:08
● 2026-03-13 09:45:50
○ 2026-03-13 14:01:36
○ 2026-03-14 08:13:46
● 2026-03-14 13:08:10
● 2026-03-14 14:31:00
○ 2026-03-14 16:17:02
○ 2026-03-22 10:08:28
● 2026-03-22 14:32:40
○ 2026-03-22 15:48:24
● 2026-03-22 16:21:26
○ 2026-03-22 22:28:58
○ 2026-06-19 16:03:38

○A18.164.96.442026-02-16 → 2026-03-22 · 19 obs

○A18.164.96.502026-02-16 → 2026-03-22 · 19 obs

○A18.164.96.92026-02-16 → 2026-03-22 · 19 obs

○A18.165.201.1012026-02-16 → 2026-06-10 · 127 obs

○ 2026-02-16 07:21:16
● 2026-02-16 10:46:06
● 2026-02-18 04:48:26
○ 2026-02-18 22:51:36
○ 2026-03-09 00:13:40
● 2026-03-09 03:02:40
○ 2026-03-09 20:05:32
● 2026-03-09 23:06:08
● 2026-03-10 03:49:24
○ 2026-03-10 08:15:42
○ 2026-03-11 08:49:26
● 2026-03-12 04:58:32
● 2026-03-13 03:26:08
○ 2026-03-13 09:45:50
● 2026-03-13 14:01:36
○ 2026-03-13 19:12:02
● 2026-03-13 22:01:22
○ 2026-03-14 00:10:20
● 2026-03-14 07:43:22
● 2026-03-14 08:13:46
○ 2026-03-14 13:08:10
○ 2026-03-14 14:31:00
● 2026-03-14 16:17:02
○ 2026-03-14 19:52:58
○ 2026-03-14 22:11:12
● 2026-03-14 22:48:28
○ 2026-03-15 00:11:34
○ 2026-03-15 05:11:54
● 2026-03-15 10:10:36
● 2026-03-15 22:25:08
○ 2026-03-16 00:12:06
○ 2026-03-16 02:59:58
● 2026-03-16 03:37:28
○ 2026-03-16 04:47:28
○ 2026-03-16 21:25:40
● 2026-03-17 03:51:32
○ 2026-03-17 04:26:16
● 2026-03-17 04:59:00
● 2026-03-17 16:37:00
○ 2026-03-17 22:31:48
● 2026-03-18 02:12:54
● 2026-03-18 07:46:38
○ 2026-03-18 10:31:52
● 2026-03-18 12:54:06
● 2026-03-18 13:42:36
○ 2026-03-18 14:21:52
● 2026-03-18 19:50:32
● 2026-03-18 20:50:26
○ 2026-03-18 22:21:16
● 2026-03-19 01:37:36
● 2026-03-19 08:39:44
○ 2026-03-19 10:13:56
● 2026-03-19 20:50:20
○ 2026-03-19 21:55:58
● 2026-03-20 03:16:26
● 2026-03-20 06:30:02
○ 2026-03-20 11:18:16
○ 2026-03-20 20:30:52
● 2026-03-20 21:38:40
● 2026-03-20 23:03:52
○ 2026-03-21 02:28:14
● 2026-03-21 23:04:08
○ 2026-03-22 06:47:56
○ 2026-03-22 14:32:40
● 2026-03-22 15:48:24
○ 2026-03-22 16:21:26
● 2026-03-22 22:28:58
● 2026-03-23 01:58:22
○ 2026-03-23 02:49:00
○ 2026-03-23 19:09:52
● 2026-03-23 22:20:54
● 2026-03-24 06:15:30
○ 2026-03-24 11:33:48
○ 2026-03-24 13:09:16
● 2026-03-24 22:01:48
● 2026-03-25 02:02:06
○ 2026-03-25 10:10:54
○ 2026-03-25 16:32:52
● 2026-03-25 18:06:38
○ 2026-03-26 03:46:00
○ 2026-03-27 01:53:36
● 2026-03-27 06:51:54
● 2026-03-27 07:43:46
○ 2026-03-27 08:21:20
○ 2026-03-31 02:05:34
● 2026-03-31 02:59:48
● 2026-03-31 04:46:56
○ 2026-03-31 07:57:36
○ 2026-04-10 00:15:28
● 2026-04-10 00:51:24
○ 2026-04-10 06:22:16
○ 2026-04-12 01:35:08
● 2026-04-12 02:08:00
○ 2026-04-12 03:11:52
○ 2026-04-12 10:32:52
● 2026-04-12 12:45:06
○ 2026-04-12 17:51:28
○ 2026-04-13 01:02:18
● 2026-04-13 07:11:04
○ 2026-04-13 10:57:34
○ 2026-04-14 05:30:42
● 2026-04-14 06:08:52
○ 2026-04-14 06:56:28
○ 2026-04-15 00:12:14
● 2026-04-15 08:23:36
○ 2026-04-15 14:22:40
○ 2026-04-16 18:36:00
● 2026-04-16 23:09:16
○ 2026-04-17 02:30:14
○ 2026-05-06 14:22:50
● 2026-05-06 16:04:22
○ 2026-05-06 16:37:16
○ 2026-05-06 18:28:48
● 2026-05-06 19:37:22
● 2026-05-07 00:31:04
○ 2026-05-07 02:20:22
○ 2026-05-08 00:27:24
● 2026-05-08 01:50:06
● 2026-05-08 05:38:20
○ 2026-05-08 13:24:00
○ 2026-05-12 02:44:26
● 2026-05-12 06:09:08
○ 2026-05-12 07:26:48
○ 2026-06-08 23:06:48
● 2026-06-10 03:10:18
○ 2026-06-10 16:00:14
○ 2026-06-19 16:03:38

○A18.165.201.172026-02-16 → 2026-06-10 · 127 obs

○A18.165.201.302026-02-16 → 2026-06-10 · 127 obs

○A18.165.201.72026-02-16 → 2026-06-10 · 127 obs

○A18.239.168.172026-03-09 → 2026-05-19 · 108 obs

○ 2026-03-08 22:05:50
● 2026-03-09 00:13:40
○ 2026-03-09 03:02:40
○ 2026-04-22 18:34:48
● 2026-04-22 21:03:46
● 2026-04-22 22:40:04
○ 2026-04-22 23:28:44
○ 2026-04-23 16:22:28
● 2026-04-23 18:18:18
○ 2026-04-23 19:49:00
○ 2026-04-25 17:19:58
● 2026-04-25 18:23:44
○ 2026-04-25 19:49:34
● 2026-04-25 20:36:08
○ 2026-04-25 21:06:50
○ 2026-04-26 01:16:42
● 2026-04-26 02:55:16
○ 2026-04-26 05:09:08
○ 2026-04-26 05:55:10
● 2026-04-26 08:41:06
○ 2026-04-26 10:12:20
○ 2026-04-26 12:41:14
● 2026-04-26 14:44:54
● 2026-04-26 16:15:54
○ 2026-04-26 16:58:16
○ 2026-04-27 02:41:54
● 2026-04-27 06:06:28
● 2026-04-27 08:37:16
○ 2026-04-27 09:09:08
● 2026-04-27 10:47:00
○ 2026-04-27 11:18:48
● 2026-04-27 12:33:48
○ 2026-04-27 17:18:08
○ 2026-04-28 18:11:14
● 2026-04-28 19:24:18
○ 2026-04-28 20:47:34
○ 2026-04-29 00:11:22
● 2026-04-29 04:46:38
○ 2026-04-29 05:18:02
○ 2026-04-29 17:04:04
● 2026-04-29 18:43:32
● 2026-04-29 21:35:10
○ 2026-04-29 22:21:30
○ 2026-04-30 08:50:24
● 2026-04-30 09:27:54
○ 2026-04-30 10:35:30
○ 2026-05-01 04:44:56
● 2026-05-01 05:21:52
○ 2026-05-01 05:51:58
○ 2026-05-02 02:00:28
● 2026-05-02 09:44:30
○ 2026-05-02 11:53:22
○ 2026-05-03 17:58:42
● 2026-05-03 20:30:22
○ 2026-05-03 23:59:02
○ 2026-05-04 13:32:14
● 2026-05-04 14:51:08
○ 2026-05-04 15:36:18
○ 2026-05-05 23:17:52
● 2026-05-06 03:41:48
● 2026-05-06 09:49:58
○ 2026-05-06 14:22:50
○ 2026-05-07 07:34:12
● 2026-05-07 08:27:20
○ 2026-05-07 12:41:18
○ 2026-05-07 15:43:04
● 2026-05-07 19:09:46
○ 2026-05-07 20:44:08
● 2026-05-07 21:56:50
○ 2026-05-08 00:27:24
○ 2026-05-08 16:06:38
● 2026-05-08 17:38:28
○ 2026-05-08 18:11:44
○ 2026-05-10 01:43:42
● 2026-05-10 02:27:06
○ 2026-05-10 09:04:28
○ 2026-05-11 07:29:10
● 2026-05-11 08:02:30
○ 2026-05-11 09:01:56
○ 2026-05-12 07:26:48
● 2026-05-12 08:41:58
○ 2026-05-12 10:39:52
○ 2026-05-12 23:26:14
● 2026-05-13 00:15:38
● 2026-05-13 00:48:30
○ 2026-05-13 07:40:28
○ 2026-05-15 08:50:50
● 2026-05-15 09:23:12
● 2026-05-15 10:30:12
○ 2026-05-15 11:21:18
○ 2026-05-15 19:54:50
● 2026-05-15 22:20:26
● 2026-05-16 01:09:08
○ 2026-05-16 03:52:16
○ 2026-05-16 19:28:24
● 2026-05-16 20:45:34
○ 2026-05-16 21:31:02
○ 2026-05-17 07:08:24
● 2026-05-17 12:03:42
● 2026-05-17 12:44:30
○ 2026-05-17 17:10:18
○ 2026-05-18 04:36:36
● 2026-05-18 08:48:42
○ 2026-05-18 10:06:28
○ 2026-05-19 12:14:22
● 2026-05-19 16:39:50
○ 2026-05-19 20:16:00
○ 2026-06-19 16:03:38

○A18.239.168.192026-03-09 → 2026-05-19 · 108 obs

○A18.239.168.22026-03-09 → 2026-05-19 · 108 obs

○A18.239.168.482026-03-09 → 2026-05-19 · 108 obs

○A18.239.36.522026-04-05 → 2026-04-05 · 4 obs

○ 2026-04-05 05:02:54
● 2026-04-05 16:09:12
○ 2026-04-05 16:45:48
○ 2026-06-19 16:03:38

○A18.239.36.752026-04-05 → 2026-04-05 · 4 obs

○ 2026-04-05 05:02:54
● 2026-04-05 16:09:12
○ 2026-04-05 16:45:48
○ 2026-06-19 16:03:38

○A18.239.36.922026-04-05 → 2026-04-05 · 4 obs

○ 2026-04-05 05:02:54
● 2026-04-05 16:09:12
○ 2026-04-05 16:45:48
○ 2026-06-19 16:03:38

○A18.239.36.932026-04-05 → 2026-04-05 · 4 obs

○ 2026-04-05 05:02:54
● 2026-04-05 16:09:12
○ 2026-04-05 16:45:48
○ 2026-06-19 16:03:38

○A18.67.130.192026-03-28 → 2026-06-16 · 191 obs

○ 2026-03-28 10:50:52
● 2026-03-28 12:53:46
○ 2026-03-28 13:38:28
● 2026-03-28 15:16:14
● 2026-03-28 19:01:00
○ 2026-03-29 01:30:58
● 2026-03-29 05:41:30
● 2026-03-29 14:36:32
○ 2026-03-29 16:53:20
○ 2026-03-29 19:01:38
● 2026-03-29 19:38:20
● 2026-03-29 21:00:54
○ 2026-03-29 22:26:44
○ 2026-03-31 00:46:08
● 2026-03-31 02:05:34
○ 2026-03-31 02:59:48
○ 2026-03-31 07:57:36
● 2026-03-31 10:53:06
○ 2026-03-31 17:31:20
○ 2026-04-02 09:20:38
● 2026-04-02 18:17:12
○ 2026-04-02 20:21:28
○ 2026-04-05 16:09:12
● 2026-04-05 16:45:48
○ 2026-04-05 17:38:42
○ 2026-04-06 18:20:08
● 2026-04-07 00:38:58
○ 2026-04-07 01:09:22
○ 2026-04-09 23:00:42
● 2026-04-10 00:15:28
○ 2026-04-10 00:51:24
○ 2026-04-13 07:11:04
● 2026-04-13 10:57:34
○ 2026-04-14 04:17:50
○ 2026-04-20 08:26:16
● 2026-04-20 09:26:24
○ 2026-04-20 11:22:48
○ 2026-04-22 05:51:14
● 2026-04-22 07:21:30
○ 2026-04-22 10:33:54
○ 2026-04-24 02:42:00
● 2026-04-24 06:48:20
○ 2026-04-24 07:30:20
● 2026-04-24 09:22:48
○ 2026-04-24 10:44:02
● 2026-04-24 14:05:00
○ 2026-04-24 19:39:54
○ 2026-04-25 23:38:20
● 2026-04-26 01:16:42
○ 2026-04-26 02:55:16
○ 2026-04-26 08:41:06
● 2026-04-26 10:12:20
○ 2026-04-26 11:45:16
● 2026-04-26 12:41:14
○ 2026-04-26 14:44:54
○ 2026-04-26 17:46:02
● 2026-04-26 18:54:24
● 2026-04-26 20:53:44
○ 2026-04-26 23:02:28
○ 2026-04-28 04:28:40
● 2026-04-28 17:31:28
○ 2026-04-28 18:11:14
○ 2026-04-29 05:55:10
● 2026-04-29 06:42:52
○ 2026-04-29 09:34:50
○ 2026-04-30 08:19:16
● 2026-04-30 08:50:24
○ 2026-04-30 09:27:54
○ 2026-05-01 09:29:24
● 2026-05-01 11:16:54
○ 2026-05-01 17:24:54
○ 2026-05-02 09:44:30
● 2026-05-02 11:53:22
● 2026-05-02 12:56:00
○ 2026-05-02 13:54:42
○ 2026-05-03 10:41:50
● 2026-05-03 12:57:40
○ 2026-05-03 17:58:42
○ 2026-05-03 23:59:02
● 2026-05-04 00:46:04
○ 2026-05-04 07:28:14
○ 2026-05-04 14:51:08
● 2026-05-04 15:36:18
○ 2026-05-04 16:18:24
● 2026-05-04 17:28:50
● 2026-05-05 02:29:48
○ 2026-05-05 03:22:06
○ 2026-05-05 06:58:22
● 2026-05-05 14:42:34
○ 2026-05-05 15:21:42
○ 2026-05-08 23:14:36
● 2026-05-09 02:54:26
○ 2026-05-09 05:45:50
● 2026-05-09 06:51:58
○ 2026-05-09 10:01:30
○ 2026-05-11 16:49:58
● 2026-05-11 18:12:20
● 2026-05-12 02:44:26
○ 2026-05-12 06:09:08
○ 2026-05-12 08:41:58
● 2026-05-12 10:39:52
○ 2026-05-12 14:26:24
○ 2026-05-12 16:12:58
● 2026-05-12 17:19:34
○ 2026-05-12 20:56:18
○ 2026-05-19 16:39:50
● 2026-05-19 20:16:00
● 2026-05-20 03:44:50
○ 2026-05-20 04:45:34
○ 2026-05-20 22:28:16
● 2026-05-21 03:35:22
○ 2026-05-21 04:17:46
○ 2026-05-23 06:36:04
● 2026-05-23 08:59:20
○ 2026-05-23 13:41:32
○ 2026-05-26 11:49:18
● 2026-05-26 14:19:54
○ 2026-05-26 16:06:54
● 2026-05-26 18:54:52
○ 2026-05-26 21:12:38
○ 2026-05-27 21:08:00
● 2026-05-28 04:21:42
○ 2026-05-28 04:53:34
○ 2026-05-28 11:53:48
● 2026-05-28 12:55:12
● 2026-05-28 15:01:34
○ 2026-05-28 15:33:30
○ 2026-05-29 05:03:28
● 2026-05-29 07:51:34
● 2026-05-30 07:19:14
○ 2026-05-30 08:38:04
○ 2026-05-31 10:42:14
● 2026-05-31 13:13:14
● 2026-05-31 17:58:58
○ 2026-06-01 07:05:40
● 2026-06-01 10:43:44
● 2026-06-01 12:38:24
○ 2026-06-01 16:24:20
○ 2026-06-02 06:24:00
● 2026-06-02 08:15:18
○ 2026-06-02 09:18:34
○ 2026-06-02 16:57:10
● 2026-06-02 20:38:30
○ 2026-06-02 23:20:40
○ 2026-06-03 05:27:36
● 2026-06-03 06:34:18
● 2026-06-03 10:09:02
○ 2026-06-03 11:45:34
○ 2026-06-03 16:16:50
● 2026-06-03 22:26:52
○ 2026-06-04 01:19:32
○ 2026-06-04 12:56:18
● 2026-06-04 16:21:34
○ 2026-06-04 17:27:00
○ 2026-06-04 18:34:10
● 2026-06-05 21:05:26
● 2026-06-06 02:13:22
○ 2026-06-06 02:46:48
○ 2026-06-07 05:21:06
● 2026-06-07 08:42:38
○ 2026-06-07 10:30:48
○ 2026-06-08 04:58:00
● 2026-06-08 14:58:20
● 2026-06-08 16:57:12
○ 2026-06-08 21:13:00
● 2026-06-08 23:06:48
○ 2026-06-10 03:10:18
● 2026-06-10 16:00:14
● 2026-06-10 16:43:28
○ 2026-06-10 17:56:40
○ 2026-06-11 02:55:56
● 2026-06-11 08:07:14
○ 2026-06-11 11:23:36
○ 2026-06-12 05:04:00
● 2026-06-12 08:04:38
○ 2026-06-12 15:12:16
○ 2026-06-13 06:39:14
● 2026-06-13 09:50:08
● 2026-06-13 14:02:20
○ 2026-06-13 17:00:28
● 2026-06-13 18:37:40
● 2026-06-14 00:20:02
○ 2026-06-14 08:13:06
○ 2026-06-14 23:53:34
● 2026-06-15 01:58:18
○ 2026-06-15 05:54:52
○ 2026-06-15 20:24:02
● 2026-06-15 23:44:38
● 2026-06-16 01:52:34
○ 2026-06-16 10:41:48
○ 2026-06-19 16:03:38

○A18.67.130.432026-03-28 → 2026-06-16 · 191 obs

○A18.67.130.672026-03-28 → 2026-06-16 · 191 obs

○A18.67.130.872026-03-28 → 2026-06-16 · 191 obs

○A18.67.233.502026-06-01 → 2026-06-03 · 7 obs

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○A18.67.233.772026-06-01 → 2026-06-03 · 7 obs

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○A18.67.233.812026-06-01 → 2026-06-03 · 7 obs

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○A18.67.233.932026-06-01 → 2026-06-03 · 7 obs

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●A3.167.56.252026-02-19 → 2026-06-19 · 93 obs

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●A3.167.56.392026-02-19 → 2026-06-19 · 93 obs

●A3.167.56.712026-02-19 → 2026-06-19 · 93 obs

●A3.167.56.842026-02-19 → 2026-06-19 · 93 obs

○A3.174.141.122026-03-15 → 2026-03-21 · 10 obs

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○A3.174.141.1252026-03-15 → 2026-03-21 · 10 obs

○A3.174.141.522026-03-15 → 2026-03-21 · 10 obs

○A3.174.141.72026-03-15 → 2026-03-21 · 10 obs

○A50.63.202.162017-09-05 → 2017-09-05 · 4 obs

○ 2016-12-05 22:22:58
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○ 2026-02-16 07:21:16
○ 2026-06-19 16:03:38

○A50.63.202.332016-12-05 → 2016-12-05 · 4 obs

○ 2016-04-25 18:19:10
● 2016-12-05 22:22:58
○ 2017-09-05 12:40:50
○ 2026-06-19 16:03:38

○A52.85.47.1152026-03-26 → 2026-06-19 · 306 obs

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○A52.85.47.292026-03-26 → 2026-06-19 · 306 obs

○A52.85.47.302026-03-26 → 2026-06-19 · 306 obs

○A52.85.47.472026-03-26 → 2026-06-19 · 306 obs

○A69.172.201.2082015-07-07 → 2016-02-05 · 4 obs

● 2015-07-07 13:28:26
● 2016-02-05 12:58:08
○ 2016-04-25 18:19:10
○ 2026-06-19 16:03:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
teacherstack.com	ns-91.awsdns-11.com, ns-573.awsdns-07.net, ns-1539.awsdns-00.co.uk, ns-1430.awsdns-50.org	2 records

✅ Authoritative Response

Server:205.251.192.91

NS records: ns-91.awsdns-11.com, ns-573.awsdns-07.net, ns-1539.awsdns-00.co.uk, ns-1430.awsdns-50.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teacherstack.com (unsigned zone)

⏱️ Timing

Total: 777ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.167.56.25, 3.167.56.84...`
NS	4	`ns-1430.awsdns-50.org, ns-1539.awsdns-00.co.uk...`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=p2N0rsuVGfH-xMq, v=spf1 include:_spf.google.com include:a`
SOA	1	`ns-573.awsdns-07.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-91.awsdns-11.com, ns-91.awsdns-11.com)

Analysis

Hierarchy

teacherstack.com is a parent domain of app.teacherstack.com.

IP Addresses

teacherstack.com has four IP addresses: 3.167.56.25, 3.167.56.39, 3.167.56.71 and 3.167.56.84.

Name Servers

The domain teacherstack.com is delegated to these four name servers: ns-91.awsdns-11.com, ns-573.awsdns-07.net, ns-1430.awsdns-50.org and ns-1539.awsdns-00.co.uk.

teacherstack.com shares at least some of its name servers with other domains, including 221.124.3.in-addr.arpa, 145.70.3.in-addr.arpa, 73.93.54.in-addr.arpa and two others.

These name servers are frequently seen alongside the name servers ns1-24-eu-central-1.ec2-rdns.amazonaws.com, ns2-24-eu-central-1.ec2-rdns.amazonaws.com, ns3-24-eu-central-1.ec2-rdns.amazonaws.com and ns4-24-eu-central-1.ec2-rdns.amazonaws.com.

The host names ns-91.awsdns-11.com, ns-573.awsdns-07.net, ns-1430.awsdns-50.org and ns-1539.awsdns-00.co.uk each resolve to two IP addresses: ns-91.awsdns-11.com resolves to 205.251.192.91 and 2600:9000:5300:5b00::1; ns-573.awsdns-07.net resolves to 205.251.194.61 and 2600:9000:5302:3d00::1; ns-1430.awsdns-50.org resolves to 205.251.197.150 and 2600:9000:5305:9600::1; ns-1539.awsdns-00.co.uk resolves to 205.251.198.3 and 2600:9000:5306:300::1.

Mail Servers

teacherstack.com routes its mail through a single mail server, smtp.google.com.

teacherstack.com has the same mail server arrangement as a number of other domains, for example bonvivantcaffe.com, windcreekonline.com, ozmedia.net and two more.

teacherstack.com shares at least some of its mail servers with other domains — for example vgroup.biz, nchsboosters.com, ferreycommercial.com and two more.

These mail servers tend to be used in conjunction with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two additional mail servers.

smtp.google.com directs to 9 IP numbers, including 142.251.163.26, 142.251.163.27 and 142.251.167.26, along with 6 other.