`tuhsd.instructure.com`

DNSSEC	⚠️ Not signed
A	13.227.207.27^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
		PTR	`server-13-227-207-27.gru3.r.cloudfront.net`
A	13.227.207.75^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
A	13.227.207.92^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}
A	13.227.207.119^{🇺🇸 Amazon13.227.200.0/21 - Cloudfront}

`instructure.com`

	DNSSEC	⚠️ Not signed
	A	151.101.2.132^{🇺🇸 Fastly151.101.0.0/22}
	A	151.101.66.132^{🇺🇸 Fastly151.101.64.0/22}
	NS	`ns-2.awsdns-00.com` ⭐
	NS	`ns-1354.awsdns-41.org`
	NS	`ns-1799.awsdns-32.co.uk`
	NS	`ns-996.awsdns-60.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽¹⁰⁾
	MX	`aspmx2.googlemail.com`⁽²⁰⁾
	MX	`aspmx3.googlemail.com`⁽²⁰⁾
	TXT	`2acd5847c66f4325be05af390213b8c7.instructure.com`
	TXT	`MS=ms20700021`
	TXT	`ZOOM_verify_Up1Opd4-S9ChtRORps16qw`
	TXT	`adobe-idp-site-verification=4287460e7429c97ad75b995bdef6b0d7ff1c9b541946abfaf...`
	TXT	`anthropic-domain-verification-2pz98m=hO4bmZQTC5gutJZcanKeagAWR`
	TXT	`anthropic-domain-verification-4mh4xs=A4vkPXqJIA4VVi9GAbxDEPohr`
	TXT	`anthropic-domain-verification-pz1pr3=sZkvFuBJeSdmEXoj4KJYYQW8Z`
	TXT	`anthropic-domain-verification-vz61c8=kfBobb4vvH2M9xtsZhFajtKHr`
	TXT	`apple-domain-verification=8oZZjgKWADRgkWui`
	TXT	`astro-domain-verification=cmbjhzn9b0c0h01pimts1v2h1`
	TXT	`atlassian-domain-verification=pS8CbCDhL3R1mMujl07LwhltWFcJtks8mrBa7l/1uocODR9...`
	TXT	`bugcrowd-verification=817deedf9414a9ea878ff255c42a9afa`
	TXT	`canva-site-verification=jRPvv0c9AZGTaJIIPIpfAQ`
	TXT	`canva-site-verification=jiASD5n0aNnvUnfIP1w4XA`
	TXT	`docker-verification=7555bc65-ce7a-4ed2-8028-4bf0274d2c5b`
	TXT	`docusign=1ca86ab9-2ddb-4d63-b719-4798811390ca`
	TXT	`drift-domain-verification=608941e9992460f0ccd58daa1decf1808863da188a929106582...`
	TXT	`fastly-domain-delegation-jpv3oeoqr3aouxwkbhpb-00480650-2025-07-31`
	TXT	`figma-domain-verification=848b9254b032bfe488e955a140a8a63cb345186c3c69b7200f7...`
	TXT	`google-site-verification=3SDlSr_fW_6bYm0BDDK4ZXs6I5yKtB4WyXL3GNozx8I`
	TXT	`google-site-verification=Som6bbrVvI5NLh3lTcpNSbp6_0GpFezQQ9xo6CrSHOQ`
	TXT	`google-site-verification=WSlNW84_Zm6mbOaM35pQyLJUt7-OtVXNjzXe9LT-eJI`
	TXT	`google-site-verification=bC89ByaBs616PDmJLrSUG5RS3fyA8agwCtXch9G0GL0`
	TXT	`hcp-domain-verification=24de36f1e2e1ad573ac320a62707e7ec8ac0cce2dccf7985914a8...`
	TXT	`jamf-site-verification=-bAufptjYdQAfzF-s7PBtQ`
	TXT	`m6bll7f2q2d2uidl6cq273dma0`
	TXT	`miro-verification=0ee36f655f5ce0499683c255714fcdbe990af0e0`
	TXT	`mongodb-site-verification=UyyatYgRcdnc3W9g8StgD1OK8wfcIouE`
	TXT	`onetrust-domain-verification=5ef48d8081ac4ab6adce9ed80c92f4e5`
	TXT	`openai-domain-verification=dv-wb5qFISTkDoktTMXLsDMVuZ0`
	TXT	`pendo-domain-verification=2l9wI_SzXdfdzA0ZCZUES4O0FS0`
	TXT	`sprout-social-715adb3f-6166-4bc5-b3d9-b1faf326db31`
	TXT	`v=spf1 include:_spf.google.com include:amazonses.com include:_spf.q4press.com...`
	TXT	`zapier-domain-verification-challenge=fe79b183-171c-432c-bf5d-48b3e73fd0af`
	TXT	`zoho-verification=zb08654551.zmverify.zoho.com`
	SOA	`ns-2.awsdns-00.com`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (87/100)
rank #1358 globally
rank #731 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #1,212

Same first word

tuhsd.org

tuhsd.net

tuhsd.k12.az.us

tuhsd.com

Similar names

thuds.com

hutds.com

shutd.com

dusht.github.io

dhsut.cc

dusth.com

hduts.com

utshd.com

thusd.k12.ca.us

studh.com

hdstu.com

thdus.com

hdtus.com

shdtu.com

dutsh.com

htdus.de

tushd.org

tushd.com

thuds.net

dshut.com

shtud.io

DNS History

46 records (4 active, 42 former)

○A108.158.186.1022026-06-02 → 2026-06-02 · 5 obs

○ 2026-06-01 02:33:16
● 2026-06-02 01:14:56
● 2026-06-02 01:50:48
○ 2026-06-02 03:45:48
○ 2026-06-04 19:53:18

○A108.158.186.1112026-06-02 → 2026-06-02 · 5 obs

○ 2026-06-01 02:33:16
● 2026-06-02 01:14:56
● 2026-06-02 01:50:48
○ 2026-06-02 03:45:48
○ 2026-06-04 19:53:18

○A108.158.186.662026-06-02 → 2026-06-02 · 5 obs

○ 2026-06-01 02:33:16
● 2026-06-02 01:14:56
● 2026-06-02 01:50:48
○ 2026-06-02 03:45:48
○ 2026-06-04 19:53:18

○A108.158.186.852026-06-02 → 2026-06-02 · 5 obs

○ 2026-06-01 02:33:16
● 2026-06-02 01:14:56
● 2026-06-02 01:50:48
○ 2026-06-02 03:45:48
○ 2026-06-04 19:53:18

○A13.226.238.1062026-05-22 → 2026-05-26 · 19 obs

○ 2026-05-21 17:56:54
● 2026-05-22 00:50:04
○ 2026-05-22 02:24:10
○ 2026-05-22 04:11:36
● 2026-05-22 04:58:44
○ 2026-05-22 05:50:22
○ 2026-05-24 11:40:10
● 2026-05-24 16:10:00
○ 2026-05-24 17:25:18
○ 2026-05-25 00:49:46
● 2026-05-25 03:25:40
○ 2026-05-25 03:56:26
○ 2026-05-25 11:57:22
● 2026-05-25 13:22:02
○ 2026-05-25 17:48:24
○ 2026-05-26 12:56:46
● 2026-05-26 17:19:32
○ 2026-05-26 19:29:02
○ 2026-06-04 19:53:18

○A13.226.238.1242026-05-22 → 2026-05-26 · 19 obs

○A13.226.238.512026-05-22 → 2026-05-26 · 19 obs

○A13.226.238.812026-05-22 → 2026-05-26 · 19 obs

●A13.227.207.1192026-05-19 → 2026-06-04 · 76 obs

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

●A13.227.207.272026-05-19 → 2026-06-04 · 76 obs

●A13.227.207.752026-05-19 → 2026-06-04 · 76 obs

●A13.227.207.922026-05-19 → 2026-06-04 · 76 obs

○A13.33.4.132026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 11:32:48
● 2026-05-21 12:20:52
○ 2026-05-21 15:45:18
○ 2026-06-04 19:53:18

○A13.33.4.662026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 11:32:48
● 2026-05-21 12:20:52
○ 2026-05-21 15:45:18
○ 2026-06-04 19:53:18

○A13.33.4.722026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 11:32:48
● 2026-05-21 12:20:52
○ 2026-05-21 15:45:18
○ 2026-06-04 19:53:18

○A13.33.4.832026-05-21 → 2026-05-21 · 4 obs

○ 2026-05-21 11:32:48
● 2026-05-21 12:20:52
○ 2026-05-21 15:45:18
○ 2026-06-04 19:53:18

○A13.35.36.272026-05-27 → 2026-05-28 · 9 obs

○ 2026-05-27 05:13:44
● 2026-05-27 07:06:28
● 2026-05-27 08:24:34
○ 2026-05-27 12:19:40
○ 2026-05-27 21:16:28
● 2026-05-28 02:41:38
● 2026-05-28 04:48:36
○ 2026-05-28 07:40:42
○ 2026-06-04 19:53:18

○A13.35.36.372026-05-27 → 2026-05-28 · 9 obs

○A13.35.36.432026-05-27 → 2026-05-28 · 9 obs

○A13.35.36.852026-05-27 → 2026-05-28 · 9 obs

○A18.154.110.1252026-05-19 → 2026-06-04 · 98 obs

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

○A18.154.110.182026-05-19 → 2026-06-04 · 98 obs

○A18.154.110.832026-05-19 → 2026-06-04 · 98 obs

○A18.154.110.932026-05-19 → 2026-06-04 · 98 obs

○A18.161.34.152026-05-19 → 2026-05-19 · 4 obs

○ 2026-05-19 09:18:40
● 2026-05-19 10:20:16
○ 2026-05-19 12:13:04
○ 2026-06-04 19:53:18

○A18.161.34.162026-05-19 → 2026-05-19 · 4 obs

○ 2026-05-19 09:18:40
● 2026-05-19 10:20:16
○ 2026-05-19 12:13:04
○ 2026-06-04 19:53:18

○A18.161.34.202026-05-19 → 2026-05-19 · 4 obs

○ 2026-05-19 09:18:40
● 2026-05-19 10:20:16
○ 2026-05-19 12:13:04
○ 2026-06-04 19:53:18

○A18.161.34.512026-05-19 → 2026-05-19 · 4 obs

○ 2026-05-19 09:18:40
● 2026-05-19 10:20:16
○ 2026-05-19 12:13:04
○ 2026-06-04 19:53:18

○A18.65.25.1102026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 17:19:32
● 2026-05-26 19:29:02
○ 2026-05-26 23:34:56
○ 2026-06-04 19:53:18

○A18.65.25.342026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 17:19:32
● 2026-05-26 19:29:02
○ 2026-05-26 23:34:56
○ 2026-06-04 19:53:18

○A18.65.25.522026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 17:19:32
● 2026-05-26 19:29:02
○ 2026-05-26 23:34:56
○ 2026-06-04 19:53:18

○A18.65.25.732026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-26 17:19:32
● 2026-05-26 19:29:02
○ 2026-05-26 23:34:56
○ 2026-06-04 19:53:18

○A3.160.196.1032026-05-26 → 2026-05-27 · 5 obs

○ 2026-05-26 19:29:02
● 2026-05-26 23:34:56
● 2026-05-27 05:13:44
○ 2026-05-27 07:06:28
○ 2026-06-04 19:53:18

○A3.160.196.1232026-05-26 → 2026-05-27 · 5 obs

○ 2026-05-26 19:29:02
● 2026-05-26 23:34:56
● 2026-05-27 05:13:44
○ 2026-05-27 07:06:28
○ 2026-06-04 19:53:18

○A3.160.196.1292026-05-26 → 2026-05-27 · 5 obs

○ 2026-05-26 19:29:02
● 2026-05-26 23:34:56
● 2026-05-27 05:13:44
○ 2026-05-27 07:06:28
○ 2026-06-04 19:53:18

○A3.160.196.892026-05-26 → 2026-05-27 · 5 obs

○ 2026-05-26 19:29:02
● 2026-05-26 23:34:56
● 2026-05-27 05:13:44
○ 2026-05-27 07:06:28
○ 2026-06-04 19:53:18

○A54.192.151.1122026-05-27 → 2026-06-04 · 27 obs

○ 2026-05-27 08:24:34
● 2026-05-27 12:19:40
○ 2026-05-27 15:02:06
○ 2026-05-27 18:09:08
● 2026-05-27 18:44:04
○ 2026-05-27 20:40:02
○ 2026-05-28 07:40:42
● 2026-05-28 09:07:54
○ 2026-05-28 14:16:22
● 2026-05-28 17:34:38
○ 2026-05-29 01:03:00
○ 2026-05-30 13:09:58
● 2026-05-30 16:03:48
○ 2026-05-30 21:42:58
○ 2026-06-02 01:50:48
● 2026-06-02 03:45:48
○ 2026-06-02 07:06:40
○ 2026-06-02 13:18:58
● 2026-06-02 16:29:14
● 2026-06-02 17:24:38
○ 2026-06-02 23:30:02
● 2026-06-03 07:04:16
● 2026-06-04 00:10:20
○ 2026-06-04 00:55:22
● 2026-06-04 07:38:50
○ 2026-06-04 10:07:00
○ 2026-06-04 19:53:18

○A54.192.151.622026-05-27 → 2026-06-04 · 27 obs

○A54.192.151.792026-05-27 → 2026-06-04 · 27 obs

○A54.192.151.872026-05-27 → 2026-06-04 · 27 obs

○A99.86.91.1122026-04-02 → 2026-05-15 · 4 obs

● 2026-04-02 00:11:24
● 2026-05-15 05:23:04
○ 2026-05-19 09:18:40
○ 2026-06-04 19:53:18

○A99.86.91.1282026-04-02 → 2026-05-15 · 4 obs

● 2026-04-02 00:11:24
● 2026-05-15 05:23:04
○ 2026-05-19 09:18:40
○ 2026-06-04 19:53:18

○A99.86.91.52026-04-02 → 2026-05-15 · 4 obs

● 2026-04-02 00:11:24
● 2026-05-15 05:23:04
○ 2026-05-19 09:18:40
○ 2026-06-04 19:53:18

○A99.86.91.862026-04-02 → 2026-05-15 · 4 obs

● 2026-04-02 00:11:24
● 2026-05-15 05:23:04
○ 2026-05-19 09:18:40
○ 2026-06-04 19:53:18

○CNAMEcluster291.instructure.com2026-04-02 → 2026-06-04 · 2 obs

○ 2026-04-02 00:11:24
○ 2026-06-04 19:53:18

○CNAMEcluster43.instructure.com2017-06-29 → 2017-06-29 · 3 obs

● 2017-06-29 06:15:20
○ 2026-04-02 00:11:24
○ 2026-06-04 19:53:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net...	-
instructure.com	ns-2.awsdns-00.com, ns-996.awsdns-60.net, ns-1799.awsdns-32.co.uk, ns-1354.awsdns-41.org	2 records

✅ Authoritative Response

Server:205.251.192.2

NS records: ns-2.awsdns-00.com, ns-996.awsdns-60.net, ns-1799.awsdns-32.co.uk, ns-1354.awsdns-41.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for instructure.com (unsigned zone)

⏱️ Timing

Total: 789ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`13.227.207.119, 13.227.207.27...`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-2.awsdns-00.com, ns-2.awsdns-00.com)

Analysis

IP Addresses

With 4 IP addresses, tuhsd.instructure.com directs to 13.227.207.27, 13.227.207.75, 13.227.207.92 and 13.227.207.119.

Among the host names that share IP numbers with tuhsd.instructure.com are www.pb77.co, rtransporte.com, app.cargolabs.org and two others.

tuhsd.instructure.com - robtex.com