cornerstone.instructure.com - dns.ninja

`cornerstone.instructure.com`

DNSSEC	⚠️ Not signed
A	3.171.38.15^{🇺🇸 Amazon3.171.36.0/22}
		PTR	`server-3-171-38-15.iad61.r.cloudfront.net`
A	3.171.38.21^{🇺🇸 Amazon3.171.36.0/22}
A	3.171.38.22^{🇺🇸 Amazon3.171.36.0/22}
A	3.171.38.83^{🇺🇸 Amazon3.171.36.0/22}

`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 #1477 globally
rank #792 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #2,013

Same first word

cornerstone.dyndns.org

cornerstone.enterprises

cornerstone.education

cornerstone.llc

cornerstone.rocks

cornerstone.es

cornerstone.nu

cornerstone.or.jp

cornerstone.productions

cornerstone.community

cornerstone.ac.nz

cornerstone.gr

cornerstone.ac.za

cornerstone.no

cornerstone.plumbing

cornerstone.ws

cornerstone.net.au

cornerstone.awsapps.com

cornerstone.ch

cornerstone.bank

cornerstone.id

cornerstone.capetown

cornerstone.ms

cornerstone.net.cn

cornerstone.club

cornerstone.duckdns.org

cornerstone.financial

cornerstone.com

cornerstone.vn

cornerstone.tv

cornerstone.sa

cornerstone.sg

cornerstone.se

cornerstone.net

cornerstone.coop

cornerstone.academy

cornerstone.partners

cornerstone.group

cornerstone.co.th

cornerstone.live

cornerstone.am

cornerstone.nl

cornerstone.tech

cornerstone.church

cornerstone.one

cornerstone.com.ng

cornerstone.com.vn

cornerstone.us

cornerstone.com.sg

cornerstone.wa.edu.au

cornerstone.photography

cornerstone.dk

cornerstone.or.kr

cornerstone.me

cornerstone.edu

cornerstone.pk

cornerstone.ie

cornerstone.ru

cornerstone.holdings

cornerstone.org

cornerstone.tokyo

cornerstone.tools

cornerstone.pl

cornerstone.cc

cornerstone.com.pe

cornerstone.inc

cornerstone.ca

cornerstone.com.au

cornerstone.email

cornerstone.bm

cornerstone.co.ug

cornerstone.host

cornerstone.co.uk

cornerstone.tax

cornerstone.in

cornerstone.systems

cornerstone.homes

cornerstone.hk

cornerstone.associates

cornerstone.net.in

cornerstone.ua

cornerstone.fr

cornerstone.info

cornerstone.co.za

cornerstone.law

cornerstone.co.at

cornerstone.nh-serv.co.uk

cornerstone.la

cornerstone.city

cornerstone.ag

cornerstone.ventures

cornerstone.it

cornerstone.org.uk

cornerstone.com.cn

cornerstone.edu.in

cornerstone.agency

cornerstone.edu.au

cornerstone.company

cornerstone.sa.edu.au

Similar names

rencoontres.com

sonnorcteer.com

notescorner.com

stonecorner.co.uk

stonecorner.ch

sorencontre.fr

stonecorner.uk

stonecorner.de

stonecorner.com

stonecorner.net

DNS History

86 records (4 active, 82 former)

○A108.157.173.132026-06-16 → 2026-07-28 · 15 obs

○ 2026-06-16 11:58:16
● 2026-06-16 15:14:04
○ 2026-06-16 15:56:04
○ 2026-06-16 22:29:54
● 2026-06-17 00:56:00
○ 2026-06-17 03:09:56
● 2026-06-17 04:16:38
○ 2026-06-17 11:37:44
● 2026-07-27 06:03:52
○ 2026-07-27 15:19:08
● 2026-07-27 15:57:58
○ 2026-07-27 17:14:08
● 2026-07-28 16:15:08
○ 2026-07-28 18:02:42
○ 2026-08-07 13:44:22

○A108.157.173.22026-06-16 → 2026-07-28 · 15 obs

○A108.157.173.522026-06-16 → 2026-07-28 · 15 obs

○A108.157.173.992026-06-16 → 2026-07-28 · 15 obs

○A108.158.122.1052026-07-01 → 2026-07-02 · 6 obs

○ 2026-07-01 17:07:18
● 2026-07-01 21:58:50
○ 2026-07-01 23:48:24
● 2026-07-02 23:17:28
○ 2026-07-03 11:44:48
○ 2026-08-07 13:44:22

○A108.158.122.412026-07-01 → 2026-07-02 · 6 obs

○ 2026-07-01 17:07:18
● 2026-07-01 21:58:50
○ 2026-07-01 23:48:24
● 2026-07-02 23:17:28
○ 2026-07-03 11:44:48
○ 2026-08-07 13:44:22

○A108.158.122.792026-07-01 → 2026-07-02 · 6 obs

○ 2026-07-01 17:07:18
● 2026-07-01 21:58:50
○ 2026-07-01 23:48:24
● 2026-07-02 23:17:28
○ 2026-07-03 11:44:48
○ 2026-08-07 13:44:22

○A108.158.122.92026-07-01 → 2026-07-02 · 6 obs

○ 2026-07-01 17:07:18
● 2026-07-01 21:58:50
○ 2026-07-01 23:48:24
● 2026-07-02 23:17:28
○ 2026-07-03 11:44:48
○ 2026-08-07 13:44:22

○A108.158.128.1102026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-27 15:57:58
● 2026-07-27 17:14:08
○ 2026-07-28 03:04:34
○ 2026-08-07 13:44:22

○A108.158.128.222026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-27 15:57:58
● 2026-07-27 17:14:08
○ 2026-07-28 03:04:34
○ 2026-08-07 13:44:22

○A108.158.128.512026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-27 15:57:58
● 2026-07-27 17:14:08
○ 2026-07-28 03:04:34
○ 2026-08-07 13:44:22

○A108.158.128.552026-07-27 → 2026-07-27 · 4 obs

○ 2026-07-27 15:57:58
● 2026-07-27 17:14:08
○ 2026-07-28 03:04:34
○ 2026-08-07 13:44:22

○A108.158.186.1022026-05-28 → 2026-07-27 · 26 obs

○ 2026-05-28 19:03:24
● 2026-05-28 21:29:24
○ 2026-05-28 23:17:42
○ 2026-06-01 18:38:26
● 2026-06-01 21:37:58
○ 2026-06-01 23:32:48
○ 2026-06-16 21:14:52
● 2026-06-16 21:57:06
○ 2026-06-16 22:29:54
● 2026-07-13 18:34:06
○ 2026-07-13 19:39:16
● 2026-07-14 09:15:40
○ 2026-07-14 11:00:18
● 2026-07-24 04:11:16
○ 2026-07-24 04:49:14
● 2026-07-24 05:27:50
○ 2026-07-24 09:16:44
● 2026-07-24 14:08:22
○ 2026-07-24 17:36:58
● 2026-07-25 00:22:54
○ 2026-07-25 05:52:50
● 2026-07-25 16:31:54
○ 2026-07-27 00:41:44
● 2026-07-27 04:22:08
○ 2026-07-27 06:03:52
○ 2026-08-07 13:44:22

○A108.158.186.602026-05-28 → 2026-07-27 · 26 obs

○A108.158.186.612026-05-28 → 2026-07-27 · 26 obs

○A108.158.186.622026-05-28 → 2026-07-27 · 26 obs

○A13.227.110.1262026-05-25 → 2026-05-25 · 5 obs

○ 2026-05-24 00:44:18
● 2026-05-25 07:02:42
● 2026-05-25 08:40:46
○ 2026-05-25 12:19:38
○ 2026-08-07 13:44:22

○A13.227.110.572026-05-25 → 2026-05-25 · 5 obs

○ 2026-05-24 00:44:18
● 2026-05-25 07:02:42
● 2026-05-25 08:40:46
○ 2026-05-25 12:19:38
○ 2026-08-07 13:44:22

○A13.227.110.72026-05-25 → 2026-05-25 · 5 obs

○ 2026-05-24 00:44:18
● 2026-05-25 07:02:42
● 2026-05-25 08:40:46
○ 2026-05-25 12:19:38
○ 2026-08-07 13:44:22

○A13.227.110.852026-05-25 → 2026-05-25 · 5 obs

○ 2026-05-24 00:44:18
● 2026-05-25 07:02:42
● 2026-05-25 08:40:46
○ 2026-05-25 12:19:38
○ 2026-08-07 13:44:22

○A13.32.16.1082026-06-11 → 2026-08-07 · 111 obs

○ 2026-06-10 23:25:50
● 2026-06-11 02:27:18
○ 2026-06-11 03:55:18
● 2026-06-11 04:46:22
● 2026-06-11 07:45:44
○ 2026-06-11 11:32:36
○ 2026-06-15 15:10:22
● 2026-06-15 20:57:50
○ 2026-06-16 11:58:16
● 2026-06-30 22:26:12
● 2026-07-01 23:48:24
○ 2026-07-02 11:54:48
○ 2026-07-02 23:17:28
● 2026-07-03 13:00:42
○ 2026-07-04 02:34:34
● 2026-07-04 09:40:02
○ 2026-07-05 04:11:42
● 2026-07-05 07:16:00
○ 2026-07-08 06:16:30
● 2026-07-08 14:39:52
○ 2026-07-09 08:59:14
○ 2026-07-10 12:57:30
● 2026-07-10 18:15:12
○ 2026-07-12 02:54:24
● 2026-07-12 04:28:54
○ 2026-07-12 20:42:30
● 2026-07-12 21:26:22
○ 2026-07-13 01:25:08
● 2026-07-13 01:57:34
○ 2026-07-13 06:03:18
● 2026-07-13 06:55:52
○ 2026-07-13 09:58:10
● 2026-07-13 15:52:34
○ 2026-07-13 18:03:52
● 2026-07-13 19:39:16
○ 2026-07-13 22:07:14
● 2026-07-13 23:39:28
○ 2026-07-14 01:39:00
● 2026-07-14 04:50:34
○ 2026-07-14 09:15:40
● 2026-07-14 18:28:14
○ 2026-07-15 01:12:02
● 2026-07-15 02:47:24
○ 2026-07-15 04:41:58
● 2026-07-15 06:27:22
○ 2026-07-15 07:16:46
● 2026-07-15 07:57:32
○ 2026-07-15 08:46:38
● 2026-07-15 09:36:08
○ 2026-07-15 11:27:48
● 2026-07-15 12:27:50
○ 2026-07-15 13:41:44
● 2026-07-15 16:52:38
○ 2026-07-16 05:42:54
● 2026-07-16 11:15:14
○ 2026-07-17 10:56:38
● 2026-07-17 12:20:44
○ 2026-07-18 04:56:18
● 2026-07-18 05:27:26
○ 2026-07-19 06:28:12
● 2026-07-19 08:33:02
○ 2026-07-19 09:41:34
● 2026-07-19 11:15:54
○ 2026-07-21 16:56:30
● 2026-07-21 18:45:10
○ 2026-07-21 22:33:00
● 2026-07-22 02:33:52
○ 2026-07-22 03:43:08
● 2026-07-22 04:27:04
○ 2026-07-22 08:24:18
● 2026-07-22 09:07:54
○ 2026-07-22 10:11:48
● 2026-07-22 14:34:02
○ 2026-07-23 06:15:54
● 2026-07-23 11:17:42
○ 2026-07-24 04:11:16
● 2026-07-28 03:04:34
○ 2026-07-28 06:27:34
● 2026-07-30 19:19:56
○ 2026-07-31 19:49:44
● 2026-07-31 21:14:28
○ 2026-07-31 22:43:52
● 2026-08-01 03:08:38
○ 2026-08-01 03:51:24
● 2026-08-01 06:50:42
○ 2026-08-01 10:31:18
● 2026-08-01 11:11:48
○ 2026-08-01 22:08:06
● 2026-08-01 23:40:26
○ 2026-08-02 07:36:14
● 2026-08-02 11:51:46
○ 2026-08-02 15:31:30
● 2026-08-02 17:52:30
○ 2026-08-03 07:56:16
● 2026-08-03 11:16:52
○ 2026-08-04 04:28:06
● 2026-08-04 05:24:00
○ 2026-08-04 14:47:58
● 2026-08-04 17:53:10
○ 2026-08-05 05:32:58
● 2026-08-05 10:02:12
○ 2026-08-05 22:08:10
● 2026-08-06 01:47:26
○ 2026-08-06 06:33:26
● 2026-08-06 17:13:04
○ 2026-08-07 05:15:28
● 2026-08-07 07:06:32
○ 2026-08-07 10:18:08
● 2026-08-07 11:35:24
○ 2026-08-07 13:44:20
○ 2026-08-07 13:44:22

○A13.32.16.232026-06-11 → 2026-08-07 · 111 obs

○A13.32.16.372026-06-11 → 2026-08-07 · 111 obs

○A13.32.16.502026-06-11 → 2026-08-07 · 111 obs

○A13.32.205.532026-05-20 → 2026-07-02 · 26 obs

○ 2026-05-19 14:06:14
● 2026-05-20 15:59:10
○ 2026-05-20 21:13:58
○ 2026-05-20 22:00:28
● 2026-05-21 00:23:22
● 2026-05-23 09:25:44
○ 2026-05-23 19:54:26
● 2026-05-24 00:44:18
● 2026-05-28 19:03:24
○ 2026-05-29 00:46:28
○ 2026-05-29 18:14:36
● 2026-05-30 00:49:52
● 2026-05-31 03:35:04
○ 2026-05-31 07:04:34
○ 2026-06-01 10:12:20
● 2026-06-01 17:53:30
● 2026-06-05 06:15:30
○ 2026-06-05 13:36:16
● 2026-06-06 04:05:10
● 2026-06-08 07:09:52
○ 2026-06-08 09:37:18
● 2026-07-01 09:50:46
○ 2026-07-01 10:58:44
● 2026-07-02 11:54:48
○ 2026-07-02 13:02:36
○ 2026-08-07 13:44:22

○A13.32.205.602026-05-20 → 2026-07-02 · 26 obs

○A13.32.205.642026-05-20 → 2026-07-02 · 26 obs

○A13.32.205.732026-05-20 → 2026-07-02 · 26 obs

○A13.35.107.1012026-07-12 → 2026-08-01 · 62 obs

○ 2026-07-12 04:28:54
● 2026-07-12 20:42:30
○ 2026-07-12 21:26:22
● 2026-07-13 06:03:18
○ 2026-07-13 06:55:52
● 2026-07-13 09:58:10
○ 2026-07-13 13:47:48
● 2026-07-13 18:03:52
○ 2026-07-13 18:34:06
● 2026-07-14 01:39:00
○ 2026-07-14 04:50:34
● 2026-07-14 12:24:52
○ 2026-07-14 16:06:10
● 2026-07-15 11:27:48
○ 2026-07-15 12:27:50
● 2026-07-15 13:41:44
○ 2026-07-15 16:52:38
● 2026-07-16 07:51:28
○ 2026-07-16 08:44:58
● 2026-07-18 04:56:18
○ 2026-07-18 05:27:26
● 2026-07-19 06:28:12
○ 2026-07-19 08:33:02
● 2026-07-21 22:33:00
○ 2026-07-22 02:33:52
● 2026-07-22 03:43:08
○ 2026-07-22 04:27:04
● 2026-07-22 08:24:18
○ 2026-07-22 09:07:54
● 2026-07-22 11:09:28
○ 2026-07-22 14:34:02
● 2026-07-23 06:15:54
○ 2026-07-23 07:15:00
● 2026-07-24 04:49:14
○ 2026-07-24 05:27:50
● 2026-07-24 09:16:44
○ 2026-07-24 12:23:24
● 2026-07-24 17:36:58
○ 2026-07-25 00:22:54
● 2026-07-25 12:03:48
○ 2026-07-25 14:16:00
● 2026-07-27 15:19:08
○ 2026-07-27 15:57:58
● 2026-07-28 12:18:24
○ 2026-07-28 16:15:08
● 2026-07-29 11:07:12
○ 2026-07-29 11:46:14
● 2026-07-30 03:29:08
○ 2026-07-30 08:19:26
● 2026-07-30 11:57:46
○ 2026-07-30 14:27:32
● 2026-07-31 19:49:44
○ 2026-07-31 21:14:28
● 2026-07-31 22:43:52
○ 2026-08-01 02:12:08
● 2026-08-01 03:51:24
○ 2026-08-01 06:50:42
● 2026-08-01 10:31:18
○ 2026-08-01 11:11:48
● 2026-08-01 22:08:06
○ 2026-08-01 23:40:26
○ 2026-08-07 13:44:22

○A13.35.107.1162026-07-12 → 2026-08-01 · 62 obs

○A13.35.107.632026-07-12 → 2026-08-01 · 62 obs

○A13.35.107.82026-07-12 → 2026-08-01 · 62 obs

○A13.35.20.1162026-06-01 → 2026-06-03 · 7 obs

○ 2026-05-31 07:04:34
● 2026-06-01 08:03:00
○ 2026-06-01 08:56:10
○ 2026-06-02 23:05:38
● 2026-06-03 00:20:54
○ 2026-06-03 00:53:04
○ 2026-08-07 13:44:22

○A13.35.20.1182026-06-01 → 2026-06-03 · 7 obs

○ 2026-05-31 07:04:34
● 2026-06-01 08:03:00
○ 2026-06-01 08:56:10
○ 2026-06-02 23:05:38
● 2026-06-03 00:20:54
○ 2026-06-03 00:53:04
○ 2026-08-07 13:44:22

○A13.35.20.642026-06-01 → 2026-06-03 · 7 obs

○ 2026-05-31 07:04:34
● 2026-06-01 08:03:00
○ 2026-06-01 08:56:10
○ 2026-06-02 23:05:38
● 2026-06-03 00:20:54
○ 2026-06-03 00:53:04
○ 2026-08-07 13:44:22

○A13.35.20.712026-06-01 → 2026-06-03 · 7 obs

○ 2026-05-31 07:04:34
● 2026-06-01 08:03:00
○ 2026-06-01 08:56:10
○ 2026-06-02 23:05:38
● 2026-06-03 00:20:54
○ 2026-06-03 00:53:04
○ 2026-08-07 13:44:22

○A13.35.36.262026-05-27 → 2026-05-28 · 11 obs

○ 2026-05-25 12:19:38
● 2026-05-27 12:08:12
○ 2026-05-27 16:13:40
○ 2026-05-27 22:10:16
● 2026-05-28 00:06:06
● 2026-05-28 00:36:24
○ 2026-05-28 03:54:46
○ 2026-05-28 21:29:24
● 2026-05-28 23:17:42
○ 2026-05-29 00:46:28
○ 2026-08-07 13:44:22

○A13.35.36.362026-05-27 → 2026-05-28 · 11 obs

○A13.35.36.442026-05-27 → 2026-05-28 · 11 obs

○A13.35.36.692026-05-27 → 2026-05-28 · 11 obs

○A18.161.205.122026-07-25 → 2026-07-25 · 6 obs

○ 2026-07-25 00:22:54
● 2026-07-25 05:52:50
○ 2026-07-25 12:03:48
● 2026-07-25 14:16:00
○ 2026-07-25 16:31:54
○ 2026-08-07 13:44:22

○A18.161.205.702026-07-25 → 2026-07-25 · 6 obs

○ 2026-07-25 00:22:54
● 2026-07-25 05:52:50
○ 2026-07-25 12:03:48
● 2026-07-25 14:16:00
○ 2026-07-25 16:31:54
○ 2026-08-07 13:44:22

○A18.161.205.732026-07-25 → 2026-07-25 · 6 obs

○ 2026-07-25 00:22:54
● 2026-07-25 05:52:50
○ 2026-07-25 12:03:48
● 2026-07-25 14:16:00
○ 2026-07-25 16:31:54
○ 2026-08-07 13:44:22

○A18.161.205.892026-07-25 → 2026-07-25 · 6 obs

○ 2026-07-25 00:22:54
● 2026-07-25 05:52:50
○ 2026-07-25 12:03:48
● 2026-07-25 14:16:00
○ 2026-07-25 16:31:54
○ 2026-08-07 13:44:22

○A18.161.21.1082026-05-20 → 2026-08-02 · 8 obs

○ 2026-05-20 15:59:10
● 2026-05-20 21:13:58
○ 2026-05-20 22:00:28
● 2026-06-29 07:09:54
○ 2026-06-29 10:20:48
● 2026-08-02 15:31:30
○ 2026-08-02 17:52:30
○ 2026-08-07 13:44:22

○A18.161.21.1282026-05-20 → 2026-08-02 · 8 obs

○ 2026-05-20 15:59:10
● 2026-05-20 21:13:58
○ 2026-05-20 22:00:28
● 2026-06-29 07:09:54
○ 2026-06-29 10:20:48
● 2026-08-02 15:31:30
○ 2026-08-02 17:52:30
○ 2026-08-07 13:44:22

○A18.161.21.342026-05-20 → 2026-08-02 · 8 obs

○ 2026-05-20 15:59:10
● 2026-05-20 21:13:58
○ 2026-05-20 22:00:28
● 2026-06-29 07:09:54
○ 2026-06-29 10:20:48
● 2026-08-02 15:31:30
○ 2026-08-02 17:52:30
○ 2026-08-07 13:44:22

○A18.161.21.822026-05-20 → 2026-08-02 · 8 obs

○ 2026-05-20 15:59:10
● 2026-05-20 21:13:58
○ 2026-05-20 22:00:28
● 2026-06-29 07:09:54
○ 2026-06-29 10:20:48
● 2026-08-02 15:31:30
○ 2026-08-02 17:52:30
○ 2026-08-07 13:44:22

○A18.244.28.622026-07-27 → 2026-07-29 · 8 obs

○ 2026-07-25 16:31:54
● 2026-07-27 00:41:44
○ 2026-07-27 04:22:08
● 2026-07-28 20:45:46
○ 2026-07-28 23:04:34
● 2026-07-29 03:58:36
○ 2026-07-29 04:55:24
○ 2026-08-07 13:44:22

○A18.244.28.802026-07-27 → 2026-07-29 · 8 obs

○ 2026-07-25 16:31:54
● 2026-07-27 00:41:44
○ 2026-07-27 04:22:08
● 2026-07-28 20:45:46
○ 2026-07-28 23:04:34
● 2026-07-29 03:58:36
○ 2026-07-29 04:55:24
○ 2026-08-07 13:44:22

○A18.244.28.832026-07-27 → 2026-07-29 · 8 obs

○ 2026-07-25 16:31:54
● 2026-07-27 00:41:44
○ 2026-07-27 04:22:08
● 2026-07-28 20:45:46
○ 2026-07-28 23:04:34
● 2026-07-29 03:58:36
○ 2026-07-29 04:55:24
○ 2026-08-07 13:44:22

○A18.244.28.862026-07-27 → 2026-07-29 · 8 obs

○ 2026-07-25 16:31:54
● 2026-07-27 00:41:44
○ 2026-07-27 04:22:08
● 2026-07-28 20:45:46
○ 2026-07-28 23:04:34
● 2026-07-29 03:58:36
○ 2026-07-29 04:55:24
○ 2026-08-07 13:44:22

○A18.245.218.1042026-06-08 → 2026-06-30 · 25 obs

○ 2026-06-08 09:37:18
● 2026-06-08 13:14:54
● 2026-06-10 00:13:20
○ 2026-06-10 06:24:30
○ 2026-06-11 11:32:36
● 2026-06-11 19:35:52
● 2026-06-13 14:56:06
○ 2026-06-13 21:13:56
○ 2026-06-17 04:16:38
● 2026-06-17 11:37:44
● 2026-06-20 22:08:10
○ 2026-06-21 19:15:40
● 2026-06-22 20:25:20
○ 2026-06-23 05:58:48
● 2026-06-24 06:09:38
○ 2026-06-24 22:02:02
○ 2026-06-27 06:17:22
● 2026-06-28 00:34:04
● 2026-06-28 17:00:36
○ 2026-06-29 07:09:54
● 2026-06-30 10:11:16
○ 2026-06-30 11:42:40
● 2026-06-30 12:56:00
○ 2026-06-30 22:26:12
○ 2026-08-07 13:44:22

○A18.245.218.72026-06-08 → 2026-06-30 · 25 obs

○A18.245.218.742026-06-08 → 2026-06-30 · 25 obs

○A18.245.218.752026-06-08 → 2026-06-30 · 25 obs

○A18.67.145.1032026-05-19 → 2026-08-06 · 37 obs

○ 2017-03-24 22:01:10
● 2026-05-19 11:10:08
● 2026-05-19 14:06:14
○ 2026-05-20 15:59:10
○ 2026-05-29 03:57:50
● 2026-05-29 06:59:42
● 2026-05-29 18:14:36
○ 2026-05-30 00:49:52
○ 2026-05-31 03:35:04
● 2026-05-31 07:04:34
● 2026-06-01 10:12:20
○ 2026-06-01 17:53:30
○ 2026-06-05 06:15:30
● 2026-06-05 13:36:16
● 2026-06-05 21:48:26
○ 2026-06-06 04:05:10
○ 2026-06-10 00:13:20
● 2026-06-10 06:24:30
● 2026-06-10 22:13:44
○ 2026-06-10 23:25:50
● 2026-07-01 00:16:52
○ 2026-07-01 09:50:46
● 2026-07-01 10:58:44
○ 2026-07-01 12:31:32
● 2026-07-13 13:47:48
○ 2026-07-13 15:52:34
● 2026-07-16 08:44:58
○ 2026-07-16 09:17:32
● 2026-07-16 09:47:58
○ 2026-07-16 11:15:14
● 2026-07-22 10:11:48
○ 2026-07-22 11:09:28
● 2026-08-02 07:36:14
○ 2026-08-02 11:51:46
● 2026-08-06 06:33:26
○ 2026-08-06 08:43:06
○ 2026-08-07 13:44:22

○A18.67.145.392026-05-19 → 2026-08-06 · 37 obs

○A18.67.145.692026-05-19 → 2026-08-06 · 37 obs

○A18.67.145.802026-05-19 → 2026-08-06 · 37 obs

○A3.164.68.1002026-07-13 → 2026-07-19 · 22 obs

○ 2026-07-12 21:26:22
● 2026-07-13 01:25:08
○ 2026-07-13 01:57:34
● 2026-07-14 11:00:18
○ 2026-07-14 12:24:52
● 2026-07-14 16:06:10
○ 2026-07-14 18:28:14
● 2026-07-15 01:12:02
○ 2026-07-15 02:47:24
● 2026-07-15 04:41:58
○ 2026-07-15 06:27:22
● 2026-07-15 07:16:46
○ 2026-07-15 07:57:32
● 2026-07-15 08:46:38
○ 2026-07-15 09:36:08
● 2026-07-16 05:42:54
○ 2026-07-16 07:51:28
● 2026-07-16 09:17:32
○ 2026-07-16 09:47:58
● 2026-07-19 09:41:34
○ 2026-07-19 11:15:54
○ 2026-08-07 13:44:22

○A3.164.68.1032026-07-13 → 2026-07-19 · 22 obs

○A3.164.68.642026-07-13 → 2026-07-19 · 22 obs

○A3.164.68.722026-07-13 → 2026-07-19 · 22 obs

●A3.171.38.152026-05-22 → 2026-08-07 · 40 obs

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

●A3.171.38.212026-05-22 → 2026-08-07 · 40 obs

●A3.171.38.222026-05-22 → 2026-08-07 · 40 obs

●A3.171.38.832026-05-22 → 2026-08-07 · 40 obs

○A52.206.196.952017-03-24 → 2017-03-24 · 3 obs

● 2017-03-24 22:01:10
○ 2026-05-19 11:10:08
○ 2026-08-07 13:44:22

○A52.71.152.2132017-03-24 → 2017-03-24 · 3 obs

● 2017-03-24 22:01:10
○ 2026-05-19 11:10:08
○ 2026-08-07 13:44:22

○A52.84.127.1262026-06-30 → 2026-06-30 · 4 obs

○ 2026-06-29 23:43:44
● 2026-06-30 08:42:10
○ 2026-06-30 10:11:16
○ 2026-08-07 13:44:22

○A52.84.127.212026-06-30 → 2026-06-30 · 4 obs

○ 2026-06-29 23:43:44
● 2026-06-30 08:42:10
○ 2026-06-30 10:11:16
○ 2026-08-07 13:44:22

○A52.84.127.72026-06-30 → 2026-06-30 · 4 obs

○ 2026-06-29 23:43:44
● 2026-06-30 08:42:10
○ 2026-06-30 10:11:16
○ 2026-08-07 13:44:22

○A52.84.127.992026-06-30 → 2026-06-30 · 4 obs

○ 2026-06-29 23:43:44
● 2026-06-30 08:42:10
○ 2026-06-30 10:11:16
○ 2026-08-07 13:44:22

○A54.164.54.1072017-03-24 → 2017-03-24 · 3 obs

● 2017-03-24 22:01:10
○ 2026-05-19 11:10:08
○ 2026-08-07 13:44:22

○A54.230.79.112026-06-17 → 2026-07-30 · 44 obs

○ 2026-06-17 11:37:44
● 2026-06-17 20:14:52
○ 2026-06-17 21:22:34
○ 2026-06-18 10:00:00
● 2026-06-18 10:58:26
○ 2026-06-18 14:10:00
● 2026-06-19 07:30:42
○ 2026-06-19 19:31:38
● 2026-06-20 03:19:06
○ 2026-06-20 10:28:10
○ 2026-06-20 22:08:10
● 2026-06-22 18:47:38
● 2026-06-23 05:58:48
○ 2026-06-23 08:02:54
● 2026-06-24 22:02:02
● 2026-06-25 10:24:50
○ 2026-06-25 17:20:22
● 2026-06-26 01:32:10
○ 2026-06-26 07:12:28
○ 2026-06-27 01:08:52
● 2026-06-27 17:30:42
● 2026-06-28 06:01:36
○ 2026-06-28 07:08:02
● 2026-06-29 10:20:48
○ 2026-06-29 13:17:46
● 2026-07-28 06:27:34
○ 2026-07-28 07:11:18
● 2026-07-28 08:12:18
○ 2026-07-28 12:18:24
● 2026-07-28 18:02:42
○ 2026-07-28 20:45:46
● 2026-07-28 23:04:34
○ 2026-07-29 03:58:36
● 2026-07-29 04:55:24
○ 2026-07-29 11:07:12
● 2026-07-29 11:46:14
○ 2026-07-29 20:20:18
● 2026-07-29 21:45:12
○ 2026-07-30 03:29:08
● 2026-07-30 08:19:26
○ 2026-07-30 11:57:46
● 2026-07-30 14:27:32
○ 2026-07-30 19:19:56
○ 2026-08-07 13:44:22

○A54.230.79.1162026-06-17 → 2026-07-30 · 44 obs

○A54.230.79.1282026-06-17 → 2026-07-30 · 44 obs

○A54.230.79.32026-06-17 → 2026-07-30 · 44 obs

○A99.84.41.282026-07-03 → 2026-08-05 · 38 obs

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

○A99.84.41.552026-07-03 → 2026-08-05 · 38 obs

○A99.84.41.702026-07-03 → 2026-08-05 · 38 obs

○A99.84.41.922026-07-03 → 2026-08-05 · 38 obs

○CNAMEcluster266.instructure.com2026-05-19 → 2026-08-07 · 2 obs

○ 2026-05-19 11:10:08
○ 2026-08-07 13:44:22

○CNAMEcluster47-362611318.us-east-1.elb.amazonaws.com2017-03-24 → 2017-03-24 · 3 obs

● 2017-03-24 22:01:10
○ 2026-05-19 11:10:08
○ 2026-08-07 13:44:22

○CNAMEcluster47.instructure.com2017-03-24 → 2017-03-24 · 3 obs

● 2017-03-24 22:01:10
○ 2026-05-19 11:10:08
○ 2026-08-07 13:44:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net, c.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: 2752ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.38.15, 3.171.38.21...`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

cornerstone.instructure.com points to the four IP addresses 3.171.38.15, 3.171.38.21, 3.171.38.22 and 3.171.38.83.

d3mpqcct97umoj.cloudfront.net, cafe-extra.jp, meincasualdate.de and two other host names share IP numbers with cornerstone.instructure.com.