classroom.goodnotes.com - dns.ninja

`classroom.goodnotes.com`

DNSSEC	⚠️ Not signed
A	3.166.192.51^{Amazon3.166.192.0/21}
A	3.166.192.64^{Amazon3.166.192.0/21}
A	3.166.192.84^{🇺🇸 Amazon3.166.192.0/21}
A	3.166.192.92^{Amazon3.166.192.0/21}
NS	`ns-1533.awsdns-63.org` ⭐
		A	2600:9000:5305:fd00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1533.awsdns-63.org`
		A	205.251.197.253^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1533.awsdns-63.org`
NS	`ns-1738.awsdns-25.co.uk`
		A	2600:9000:5306:ca00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1738.awsdns-25.co.uk`
		A	205.251.198.202^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1738.awsdns-25.co.uk`
NS	`ns-299.awsdns-37.com`
		A	2600:9000:5301:2b00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-299.awsdns-37.com`
		A	205.251.193.43^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-299.awsdns-37.com`
NS	`ns-969.awsdns-57.net`
		A	2600:9000:5303:c900::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-969.awsdns-57.net`
		A	205.251.195.201^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-969.awsdns-57.net`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	2607:f8b0:4004:c0b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f26.1e100.net`
		A	2607:f8b0:4004:c0b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f27.1e100.net`
		A	2607:f8b0:4004:c19::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f26.1e100.net`
		A	142.250.31.26^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f26.1e100.net`
		A	142.250.31.27^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f27.1e100.net`
		A	142.251.111.26^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f26.1e100.net`
		A	142.251.111.27^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f27.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`k7wdcadawn76eexmop33kcs3cyima3jwhvsao2vgqfaz6qef6ozq.mx-verification.google.com`⁽¹⁵⁾
SOA	`ns-1533.awsdns-63.org`awsdns-hostmaster@amazon.com serial=1

`goodnotes.com`

	DNSSEC	⚠️ Not signed
	A	52.84.80.11^{🇺🇸 Amazon52.84.0.0/14}
	A	52.84.80.21^{🇺🇸 Amazon52.84.0.0/14}
	A	52.84.80.31^{🇺🇸 Amazon52.84.0.0/14}
	A	52.84.80.100^{🇺🇸 Amazon52.84.0.0/14}
	NS	`ns-1467.awsdns-55.org` ⭐
	NS	`ns-1759.awsdns-27.co.uk`
	NS	`ns-748.awsdns-29.net`
	NS	`ns-99.awsdns-12.com`
	MX	`smtp.google.com` ⭐
	TXT	`8C58F5A793`
	TXT	`MS=ms66944371`
	TXT	`MS=ms72330585`
	TXT	`_ix83ob5orezv8sibvv1ytsp7epzf54p`
	TXT	`apple-domain-verification=PF3Vd2yC2LsCsm9g`
	TXT	`atlassian-domain-verification=ExaNhMsCUGORyQuXobk50p6tcqauxHbFzzZckB42RlAv1Lj...`
	TXT	`atlassian-sending-domain-verification=f2c25a79-9cd4-4e65-9284-9be08f295002`
	TXT	`cisco-ci-domain-verification=337bbfd476dc2143cd4247d9fc1616f0ce85087509e5236a...`
	TXT	`cursor-domain-verification-9k17ez=z45Wuvvz1Eogawb2dXsTUGVky`
	TXT	`figma-domain-verification=155fbe86cd7071c7a538ed8295bfca3e20fa254277c57e708f5...`
	TXT	`goodnotes-verification=c2f78cf5-a4ea-4f08-8a83-87a091e3c979`
	TXT	`google-site-verification=8Swcg7lYhQOK-fosTi2pB4-EhZG8HJo1ZPrhTRaZQgU`
	TXT	`google-site-verification=dLfUKB-8Fr08SpD0Byaspeb1DAb8cEO_T-zWnhYz8Vc`
	TXT	`google-site-verification=pzmqndC7_zoAkN0xG3ugevCPcbWUzwJvEX0nmlMwAQk`
	TXT	`google-site-verification=zsLumvfRtJ8kMpHq9TubpRujYDKbxBGl7oCzpMXyQqw`
	TXT	`jetbrains-domain-verification=b9dclsa4elrzbkw9zn9mbsbjp`
	TXT	`mandrill_verify.PTWvG4ntNJHJw8xXVUBh2w`
	TXT	`neat-pulse-domain-verification-DXgkWjX=8b11ae11-ed78-435a-b4ab-178cf4b9425e`
	TXT	`notion-domain-verification=5pxFPT7CUlILZFEd96Y0zgXjGyJVF2M05q1Hd3q80YE`
	TXT	`perplexity-ai-domain-verification-d151j3=cfiQ1sO08OqNFU7ECyS6VYWeJ`
	TXT	`slack-domain-verification=ANCp1g51JGm79Vn6I2v9iroxq6quSNKB5aP5kph2`
	TXT	`stripe-verification=4FCD874F901D07AFD4073457508845B43B9A99939C227D91681B99B8F...`
	TXT	`v=spf1 include:_spf.google.com include:spf.mandrillapp.com include:26813687.s...`
	SOA	`ns-1467.awsdns-55.org`awsdns-hostmaster@amazon.com serial=1

rank #32635 globally
rank #16074 in the tld
📈 Tranco rank: #11,108

Subdomains

api.classroom.goodnotes.com

publishers.classroom.goodnotes.com

Same first word

classroom.se

classroom.re.kr

classroom.com.au

classroom.cafe

classroom.nl

classroom.si

classroom.im

classroom.leadpages.co

classroom.coach

classroom.online

classroom.kz

classroom.technology

classroom.life

classroom.co

classroom.global

classroom.freetls.fastly.net

classroom.cc

classroom.it.com

classroom.digital

classroom.nyc

classroom.org

classroom.ru

classroom.at

classroom.school

classroom.gov.ng

classroom.management

classroom.be

classroom.ro

classroom.la

classroom.gr

classroom.fr

classroom.solar

classroom.cloud

classroom.world

classroom.biz

classroom.com

classroom.ws

classroom.name

classroom.au

classroom.solutions

classroom.com.hk

classroom.id

classroom.us

classroom.net

classroom.ai

classroom.pl

classroom.uk

classroom.co.za

classroom.es

classroom.ch

classroom.design

classroom.co.com

classroom.de

classroom.college

classroom.lol

classroom.com.ar

classroom.gifts

classroom.ge

classroom.works

classroom.bg

classroom.global.ssl.fastly.net

classroom.pro

classroom.fund

classroom.ca

classroom.community

classroom.cz

classroom.network

classroom.rentals

classroom.dk

classroom.cl

classroom.place

Similar names

losmarcos.com

masscolor.com

classmoor.com

colormass.com

clasrooms.com

roomclass.com

losmarcos.mx

mssolarco.com

mssolarco.org

mssolarco.net

carolmoss.com

losmarcos.com.mx

moscorals.ru

DNS History

94 records (10 active, 84 former)

●NSns-1533.awsdns-63.org2026-03-15 → 2026-07-17 · 5 obs

● 2026-03-15 05:01:32
● 2026-05-09 15:13:50
○ 2026-05-09 17:04:20
● 2026-05-09 21:49:34
● 2026-07-17 19:42:28

●NSns-1738.awsdns-25.co.uk2026-03-15 → 2026-07-17 · 5 obs

● 2026-03-15 05:01:32
● 2026-05-09 15:13:50
○ 2026-05-09 17:04:20
● 2026-05-09 21:49:34
● 2026-07-17 19:42:28

●NSns-299.awsdns-37.com2026-03-15 → 2026-07-17 · 5 obs

● 2026-03-15 05:01:32
● 2026-05-09 15:13:50
○ 2026-05-09 17:04:20
● 2026-05-09 21:49:34
● 2026-07-17 19:42:28

●NSns-969.awsdns-57.net2026-03-15 → 2026-07-17 · 5 obs

● 2026-03-15 05:01:32
● 2026-05-09 15:13:50
○ 2026-05-09 17:04:20
● 2026-05-09 21:49:34
● 2026-07-17 19:42:28

●MXk7wdcadawn76eexmop33kcs3cyima3jwhvsao2vgqfaz6qef6ozq.mx-verification.google.com2026-03-15 → 2026-07-17 · 8 obs

● 2026-03-15 05:01:32
● 2026-05-09 15:13:50
○ 2026-05-09 17:04:20
● 2026-05-09 21:49:34
● 2026-06-07 10:11:54
○ 2026-06-07 11:07:54
● 2026-06-07 12:25:40
● 2026-07-17 19:42:28

●MXsmtp.google.com2026-03-15 → 2026-07-17 · 8 obs

● 2026-03-15 05:01:32
● 2026-05-09 15:13:50
○ 2026-05-09 17:04:20
● 2026-05-09 21:49:34
● 2026-06-07 10:11:54
○ 2026-06-07 11:07:54
● 2026-06-07 12:25:40
● 2026-07-17 19:42:28

○A108.139.119.152026-04-07 → 2026-06-06 · 18 obs

○ 2026-04-07 19:02:06
● 2026-04-07 23:22:24
○ 2026-04-08 01:27:46
● 2026-04-08 02:33:20
○ 2026-04-08 04:34:54
● 2026-04-08 10:26:24
○ 2026-04-08 16:23:38
○ 2026-04-15 23:52:26
● 2026-04-16 03:17:06
● 2026-04-16 15:50:06
○ 2026-04-16 19:52:26
● 2026-04-17 03:16:22
○ 2026-04-17 07:52:38
○ 2026-06-06 19:33:18
● 2026-06-06 20:05:38
● 2026-06-06 20:55:54
○ 2026-06-06 22:09:52
○ 2026-07-17 19:42:28

○A108.139.119.442026-04-07 → 2026-06-06 · 18 obs

○A108.139.119.452026-04-07 → 2026-06-06 · 18 obs

○A108.139.119.782026-04-07 → 2026-06-06 · 18 obs

○A108.158.137.1152026-04-10 → 2026-07-14 · 31 obs

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

○A108.158.137.1222026-04-10 → 2026-07-14 · 31 obs

○A108.158.137.222026-04-10 → 2026-07-14 · 31 obs

○A108.158.137.782026-04-10 → 2026-07-14 · 31 obs

○A13.227.107.1052026-03-28 → 2026-04-29 · 18 obs

○ 2026-03-28 11:05:48
● 2026-03-28 15:17:06
● 2026-03-29 21:13:34
○ 2026-03-30 02:19:58
● 2026-03-30 04:38:40
○ 2026-03-30 08:55:16
○ 2026-04-02 12:12:50
● 2026-04-02 20:14:14
● 2026-04-03 04:28:42
○ 2026-04-03 17:50:18
○ 2026-04-04 00:31:22
● 2026-04-04 09:44:54
○ 2026-04-04 19:36:46
○ 2026-04-28 22:09:42
● 2026-04-29 00:00:46
● 2026-04-29 10:59:12
○ 2026-04-29 13:32:00
○ 2026-07-17 19:42:28

○A13.227.107.242026-03-28 → 2026-04-29 · 18 obs

○A13.227.107.482026-03-28 → 2026-04-29 · 18 obs

○A13.227.107.892026-03-28 → 2026-04-29 · 18 obs

○A13.227.110.1172026-04-30 → 2026-07-17 · 68 obs

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

○A13.227.110.1182026-04-30 → 2026-07-17 · 68 obs

○A13.227.110.242026-04-30 → 2026-07-17 · 68 obs

○A13.227.110.342026-04-30 → 2026-07-17 · 68 obs

○A13.32.164.412026-05-19 → 2026-07-01 · 26 obs

○ 2026-05-18 14:53:18
● 2026-05-19 09:53:18
● 2026-05-19 10:36:08
○ 2026-05-19 15:33:48
● 2026-05-19 18:44:28
● 2026-05-23 08:30:38
○ 2026-05-23 18:09:00
● 2026-05-24 17:07:06
● 2026-05-31 08:05:04
○ 2026-05-31 11:27:04
○ 2026-06-02 16:18:38
● 2026-06-02 19:22:44
● 2026-06-07 06:33:34
○ 2026-06-07 11:07:54
● 2026-06-07 12:25:40
● 2026-06-08 07:43:02
○ 2026-06-08 08:13:36
● 2026-06-30 22:16:10
○ 2026-06-30 22:48:42
● 2026-07-01 00:38:42
○ 2026-07-01 09:54:04
● 2026-07-01 12:12:26
○ 2026-07-01 13:38:26
● 2026-07-01 22:28:38
○ 2026-07-02 01:36:54
○ 2026-07-17 19:42:28

○A13.32.164.482026-05-19 → 2026-07-01 · 26 obs

○A13.32.164.52026-05-19 → 2026-07-01 · 26 obs

○A13.32.164.582026-05-19 → 2026-07-01 · 26 obs

○A13.33.109.1192026-04-20 → 2026-05-20 · 19 obs

○ 2026-04-20 01:47:00
● 2026-04-20 17:26:30
○ 2026-04-20 22:08:56
○ 2026-04-21 19:32:58
● 2026-04-21 20:40:22
○ 2026-04-22 04:28:48
○ 2026-04-23 09:03:04
● 2026-04-23 10:05:28
● 2026-04-24 05:25:56
○ 2026-04-24 08:55:48
○ 2026-04-24 21:34:32
● 2026-04-24 23:22:52
● 2026-04-25 17:37:20
○ 2026-04-25 20:41:02
○ 2026-05-20 03:46:48
● 2026-05-20 05:16:32
● 2026-05-20 08:03:16
○ 2026-05-20 08:57:42
○ 2026-07-17 19:42:28

○A13.33.109.1202026-04-20 → 2026-05-20 · 19 obs

○A13.33.109.342026-04-20 → 2026-05-20 · 19 obs

○A13.33.109.792026-04-20 → 2026-05-20 · 19 obs

○A13.33.82.1152026-05-07 → 2026-05-07 · 6 obs

○ 2026-04-30 22:19:06
● 2026-05-07 14:56:22
○ 2026-05-07 15:30:40
● 2026-05-07 16:58:54
○ 2026-05-07 20:36:44
○ 2026-07-17 19:42:28

○A13.33.82.292026-05-07 → 2026-05-07 · 6 obs

○ 2026-04-30 22:19:06
● 2026-05-07 14:56:22
○ 2026-05-07 15:30:40
● 2026-05-07 16:58:54
○ 2026-05-07 20:36:44
○ 2026-07-17 19:42:28

○A13.33.82.772026-05-07 → 2026-05-07 · 6 obs

○ 2026-04-30 22:19:06
● 2026-05-07 14:56:22
○ 2026-05-07 15:30:40
● 2026-05-07 16:58:54
○ 2026-05-07 20:36:44
○ 2026-07-17 19:42:28

○A13.33.82.892026-05-07 → 2026-05-07 · 6 obs

○ 2026-04-30 22:19:06
● 2026-05-07 14:56:22
○ 2026-05-07 15:30:40
● 2026-05-07 16:58:54
○ 2026-05-07 20:36:44
○ 2026-07-17 19:42:28

○A13.35.163.1262026-05-28 → 2026-06-02 · 16 obs

○ 2026-05-27 23:36:18
● 2026-05-28 00:47:22
○ 2026-05-28 02:40:12
● 2026-05-28 04:56:40
○ 2026-05-28 06:08:20
○ 2026-05-29 21:40:50
● 2026-05-30 00:48:58
○ 2026-05-30 02:18:28
○ 2026-05-31 00:37:56
● 2026-05-31 03:14:12
● 2026-05-31 03:58:44
○ 2026-05-31 05:49:44
○ 2026-06-01 21:39:08
● 2026-06-02 00:41:06
○ 2026-06-02 01:15:34
○ 2026-07-17 19:42:28

○A13.35.163.542026-05-28 → 2026-06-02 · 16 obs

○A13.35.163.682026-05-28 → 2026-06-02 · 16 obs

○A13.35.163.822026-05-28 → 2026-06-02 · 16 obs

○A143.204.68.42026-03-15 → 2026-06-29 · 51 obs

● 2026-03-15 05:01:32
● 2026-03-15 15:06:12
○ 2026-03-15 17:23:32
● 2026-03-15 23:43:58
● 2026-03-28 11:05:48
○ 2026-03-28 15:17:06
○ 2026-04-03 04:28:42
● 2026-04-03 17:50:18
● 2026-05-17 11:51:18
○ 2026-05-17 12:26:46
○ 2026-06-08 18:26:26
● 2026-06-09 03:00:48
● 2026-06-20 10:24:40
○ 2026-06-20 23:29:50
● 2026-06-21 00:56:12
○ 2026-06-21 06:30:18
● 2026-06-21 12:21:00
○ 2026-06-22 14:06:56
● 2026-06-22 15:17:16
○ 2026-06-23 00:06:10
● 2026-06-23 01:31:46
○ 2026-06-24 02:28:56
● 2026-06-24 03:01:52
○ 2026-06-24 03:50:20
● 2026-06-24 05:38:18
○ 2026-06-24 08:03:18
● 2026-06-24 15:31:22
○ 2026-06-24 23:08:58
● 2026-06-25 00:57:24
○ 2026-06-25 11:57:34
● 2026-06-25 14:57:08
○ 2026-06-26 02:04:20
● 2026-06-26 11:22:20
○ 2026-06-26 12:10:50
● 2026-06-26 23:07:22
○ 2026-06-26 23:45:50
● 2026-06-27 08:04:38
○ 2026-06-27 09:47:58
● 2026-06-27 10:21:06
○ 2026-06-27 13:48:22
● 2026-06-27 17:35:16
○ 2026-06-27 21:01:18
● 2026-06-27 22:01:28
○ 2026-06-28 04:19:22
● 2026-06-28 05:03:44
○ 2026-06-29 06:38:28
● 2026-06-29 11:22:26
○ 2026-06-29 21:08:36
● 2026-06-29 23:15:34
○ 2026-06-30 22:16:10
○ 2026-07-17 19:42:28

○A143.204.68.652026-03-15 → 2026-06-29 · 51 obs

○A143.204.68.72026-03-15 → 2026-06-29 · 51 obs

○A143.204.68.972026-03-15 → 2026-06-29 · 51 obs

○A18.172.134.1092026-05-26 → 2026-05-26 · 5 obs

○ 2026-05-24 17:07:06
● 2026-05-26 09:06:36
● 2026-05-26 09:45:38
○ 2026-05-26 10:57:40
○ 2026-07-17 19:42:28

○A18.172.134.302026-05-26 → 2026-05-26 · 5 obs

○ 2026-05-24 17:07:06
● 2026-05-26 09:06:36
● 2026-05-26 09:45:38
○ 2026-05-26 10:57:40
○ 2026-07-17 19:42:28

○A18.172.134.862026-05-26 → 2026-05-26 · 5 obs

○ 2026-05-24 17:07:06
● 2026-05-26 09:06:36
● 2026-05-26 09:45:38
○ 2026-05-26 10:57:40
○ 2026-07-17 19:42:28

○A18.172.134.952026-05-26 → 2026-05-26 · 5 obs

○ 2026-05-24 17:07:06
● 2026-05-26 09:06:36
● 2026-05-26 09:45:38
○ 2026-05-26 10:57:40
○ 2026-07-17 19:42:28

○A3.162.103.1022026-03-19 → 2026-06-21 · 19 obs

○ 2026-03-17 12:33:04
● 2026-03-19 06:55:00
○ 2026-03-19 08:57:00
○ 2026-03-20 08:43:12
● 2026-03-20 10:19:14
○ 2026-03-20 12:35:28
○ 2026-03-20 16:40:50
● 2026-03-20 20:13:24
● 2026-03-20 23:07:46
○ 2026-03-21 02:29:52
○ 2026-04-18 07:00:06
● 2026-04-18 09:24:34
○ 2026-04-18 10:54:06
○ 2026-04-20 01:47:00
● 2026-06-21 00:25:40
○ 2026-06-21 00:56:12
● 2026-06-21 06:30:18
○ 2026-06-21 10:44:54
○ 2026-07-17 19:42:28

○A3.162.103.1052026-03-19 → 2026-06-21 · 19 obs

○A3.162.103.1152026-03-19 → 2026-06-21 · 19 obs

○A3.162.103.532026-03-19 → 2026-06-21 · 19 obs

○A3.163.83.242026-04-02 → 2026-04-07 · 13 obs

○ 2026-04-02 20:14:14
● 2026-04-02 22:45:20
● 2026-04-02 23:53:18
○ 2026-04-03 04:28:42
○ 2026-04-03 17:50:18
● 2026-04-03 20:26:54
○ 2026-04-04 00:31:22
○ 2026-04-07 00:52:24
● 2026-04-07 06:16:46
○ 2026-04-07 15:01:20
● 2026-04-07 16:50:44
○ 2026-04-07 19:02:06
○ 2026-07-17 19:42:28

○A3.163.83.592026-04-02 → 2026-04-07 · 13 obs

○A3.163.83.62026-04-02 → 2026-04-07 · 13 obs

○A3.163.83.702026-04-02 → 2026-04-07 · 13 obs

●A3.166.192.512026-07-13 → 2026-07-17 · 15 obs

○ 2026-07-11 02:59:10
● 2026-07-13 04:32:36
○ 2026-07-13 06:51:22
● 2026-07-13 16:09:52
○ 2026-07-13 17:00:28
● 2026-07-13 20:59:48
○ 2026-07-13 23:55:38
● 2026-07-14 03:59:28
○ 2026-07-14 04:39:22
● 2026-07-16 08:17:46
○ 2026-07-16 10:32:50
● 2026-07-17 08:58:44
○ 2026-07-17 13:36:30
● 2026-07-17 19:42:22
● 2026-07-17 19:42:28

●A3.166.192.642026-07-13 → 2026-07-17 · 15 obs

●A3.166.192.842026-07-13 → 2026-07-17 · 15 obs

●A3.166.192.922026-07-13 → 2026-07-17 · 15 obs

○A3.167.212.442026-03-15 → 2026-07-11 · 22 obs

○ 2026-03-15 15:06:12
● 2026-03-15 17:23:32
○ 2026-03-15 23:43:58
○ 2026-03-16 14:45:44
● 2026-03-17 04:00:10
○ 2026-03-17 04:59:46
● 2026-03-17 08:10:06
○ 2026-03-17 11:56:42
○ 2026-03-21 02:29:52
● 2026-03-21 11:34:04
○ 2026-03-21 23:08:34
● 2026-07-03 07:44:20
○ 2026-07-03 08:26:38
● 2026-07-04 00:41:14
○ 2026-07-04 02:57:08
● 2026-07-07 22:06:00
○ 2026-07-08 02:56:42
● 2026-07-08 15:22:52
○ 2026-07-09 04:49:44
● 2026-07-11 00:40:50
○ 2026-07-11 01:12:04
○ 2026-07-17 19:42:28

○A3.167.212.602026-03-15 → 2026-07-11 · 22 obs

○A3.167.212.612026-03-15 → 2026-07-11 · 22 obs

○A3.167.212.882026-03-15 → 2026-07-11 · 22 obs

○A3.170.19.102026-03-16 → 2026-07-11 · 60 obs

○ 2026-03-15 23:43:58
● 2026-03-16 09:23:50
○ 2026-03-16 14:45:44
○ 2026-03-17 08:10:06
● 2026-03-17 11:56:42
○ 2026-03-17 12:33:04
○ 2026-03-21 11:34:04
● 2026-03-21 23:08:34
○ 2026-03-22 01:05:00
○ 2026-03-23 02:08:34
● 2026-03-23 10:55:16
○ 2026-03-23 19:26:40
○ 2026-05-23 08:30:38
● 2026-05-23 18:09:00
○ 2026-05-24 00:52:08
○ 2026-06-16 16:56:26
● 2026-06-16 17:58:44
● 2026-06-16 21:03:54
○ 2026-06-16 22:11:48
● 2026-06-22 14:06:56
○ 2026-06-22 15:17:16
● 2026-06-24 02:28:56
○ 2026-06-24 03:01:52
● 2026-06-24 03:50:20
○ 2026-06-24 05:38:18
● 2026-06-25 11:57:34
○ 2026-06-25 14:57:08
● 2026-06-26 06:24:34
○ 2026-06-26 11:22:20
● 2026-06-27 07:27:46
○ 2026-06-27 08:04:38
● 2026-06-27 09:47:58
○ 2026-06-27 10:21:06
● 2026-06-29 08:23:48
○ 2026-06-29 11:22:26
● 2026-06-29 21:08:36
○ 2026-06-29 23:15:34
● 2026-06-30 22:48:42
○ 2026-07-01 00:38:42
● 2026-07-01 19:09:58
○ 2026-07-01 22:28:38
● 2026-07-02 01:36:54
○ 2026-07-02 02:40:24
● 2026-07-03 06:27:06
○ 2026-07-03 07:44:20
● 2026-07-03 15:54:46
○ 2026-07-03 21:55:02
● 2026-07-05 06:01:54
○ 2026-07-07 09:41:10
● 2026-07-08 10:28:14
○ 2026-07-08 13:06:10
● 2026-07-09 05:38:12
○ 2026-07-09 06:59:00
● 2026-07-09 23:14:28
○ 2026-07-10 02:03:34
● 2026-07-10 22:25:46
○ 2026-07-10 23:03:18
● 2026-07-11 01:12:04
○ 2026-07-11 02:59:10
○ 2026-07-17 19:42:28

○A3.170.19.272026-03-16 → 2026-07-11 · 60 obs

○A3.170.19.402026-03-16 → 2026-07-11 · 60 obs

○A3.170.19.72026-03-16 → 2026-07-11 · 60 obs

○A3.171.171.412026-03-31 → 2026-06-29 · 37 obs

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

○A3.171.171.442026-03-31 → 2026-06-29 · 37 obs

○A3.171.171.692026-03-31 → 2026-06-29 · 37 obs

○A3.171.171.752026-03-31 → 2026-06-29 · 37 obs

○A3.174.113.552026-03-23 → 2026-07-16 · 27 obs

○ 2026-03-22 01:05:00
● 2026-03-23 02:08:34
○ 2026-03-23 06:50:14
○ 2026-03-25 01:27:38
● 2026-03-25 04:32:10
○ 2026-03-25 09:43:14
● 2026-07-13 17:36:58
○ 2026-07-13 18:43:24
● 2026-07-13 23:55:38
○ 2026-07-14 03:20:20
● 2026-07-14 06:29:26
○ 2026-07-14 08:50:12
● 2026-07-14 12:56:04
○ 2026-07-14 23:13:40
● 2026-07-15 05:26:16
○ 2026-07-15 07:02:22
● 2026-07-15 08:43:12
○ 2026-07-15 09:36:40
● 2026-07-16 00:43:48
○ 2026-07-16 04:38:12
● 2026-07-16 10:32:50
○ 2026-07-16 13:33:14
● 2026-07-16 17:22:34
○ 2026-07-16 21:23:20
● 2026-07-16 22:13:06
○ 2026-07-16 22:58:24
○ 2026-07-17 19:42:28

○A3.174.113.762026-03-23 → 2026-07-16 · 27 obs

○A3.174.113.772026-03-23 → 2026-07-16 · 27 obs

○A3.174.113.872026-03-23 → 2026-07-16 · 27 obs

○A3.174.255.232026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 22:11:48
● 2026-06-17 23:39:04
○ 2026-06-18 00:46:58
○ 2026-07-17 19:42:28

○A3.174.255.572026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 22:11:48
● 2026-06-17 23:39:04
○ 2026-06-18 00:46:58
○ 2026-07-17 19:42:28

○A3.174.255.762026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 22:11:48
● 2026-06-17 23:39:04
○ 2026-06-18 00:46:58
○ 2026-07-17 19:42:28

○A3.174.255.82026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 22:11:48
● 2026-06-17 23:39:04
○ 2026-06-18 00:46:58
○ 2026-07-17 19:42:28

○A3.174.29.1052026-04-14 → 2026-04-14 · 4 obs

○ 2026-04-11 15:46:32
● 2026-04-14 08:52:30
○ 2026-04-14 10:46:14
○ 2026-07-17 19:42:28

○A3.174.29.312026-04-14 → 2026-04-14 · 4 obs

○ 2026-04-11 15:46:32
● 2026-04-14 08:52:30
○ 2026-04-14 10:46:14
○ 2026-07-17 19:42:28

○A3.174.29.362026-04-14 → 2026-04-14 · 4 obs

○ 2026-04-11 15:46:32
● 2026-04-14 08:52:30
○ 2026-04-14 10:46:14
○ 2026-07-17 19:42:28

○A3.174.29.492026-04-14 → 2026-04-14 · 4 obs

○ 2026-04-11 15:46:32
● 2026-04-14 08:52:30
○ 2026-04-14 10:46:14
○ 2026-07-17 19:42:28

○A52.85.47.1152026-04-26 → 2026-06-11 · 7 obs

○ 2026-04-25 20:41:02
● 2026-04-26 01:32:30
○ 2026-04-26 05:20:54
○ 2026-06-11 02:10:24
● 2026-06-11 04:16:16
○ 2026-06-11 08:28:46
○ 2026-07-17 19:42:28

○A52.85.47.1232026-04-26 → 2026-06-11 · 7 obs

○ 2026-04-25 20:41:02
● 2026-04-26 01:32:30
○ 2026-04-26 05:20:54
○ 2026-06-11 02:10:24
● 2026-06-11 04:16:16
○ 2026-06-11 08:28:46
○ 2026-07-17 19:42:28

○A52.85.47.242026-04-26 → 2026-06-11 · 7 obs

○ 2026-04-25 20:41:02
● 2026-04-26 01:32:30
○ 2026-04-26 05:20:54
○ 2026-06-11 02:10:24
● 2026-06-11 04:16:16
○ 2026-06-11 08:28:46
○ 2026-07-17 19:42:28

○A52.85.47.732026-04-26 → 2026-06-11 · 7 obs

○ 2026-04-25 20:41:02
● 2026-04-26 01:32:30
○ 2026-04-26 05:20:54
○ 2026-06-11 02:10:24
● 2026-06-11 04:16:16
○ 2026-06-11 08:28:46
○ 2026-07-17 19:42:28

○A54.192.151.1252026-05-27 → 2026-06-05 · 19 obs

○ 2026-05-26 10:57:40
● 2026-05-27 12:25:14
○ 2026-05-27 14:06:52
○ 2026-05-27 15:30:24
● 2026-05-27 16:02:48
○ 2026-05-27 23:36:18
○ 2026-06-02 13:06:34
● 2026-06-02 14:00:16
● 2026-06-02 16:18:38
○ 2026-06-02 19:22:44
○ 2026-06-03 23:57:58
● 2026-06-04 00:40:54
● 2026-06-04 03:38:18
○ 2026-06-04 05:05:14
○ 2026-06-05 05:33:08
● 2026-06-05 09:03:22
● 2026-06-05 11:41:50
○ 2026-06-05 13:09:18
○ 2026-07-17 19:42:28

○A54.192.151.152026-05-27 → 2026-06-05 · 19 obs

○A54.192.151.292026-05-27 → 2026-06-05 · 19 obs

○A54.192.151.452026-05-27 → 2026-06-05 · 19 obs

○A54.240.184.182026-06-18 → 2026-06-21 · 6 obs

○ 2026-06-17 23:39:04
● 2026-06-18 00:46:58
○ 2026-06-18 03:42:00
● 2026-06-21 10:44:54
○ 2026-06-21 12:21:00
○ 2026-07-17 19:42:28

○A54.240.184.282026-06-18 → 2026-06-21 · 6 obs

○ 2026-06-17 23:39:04
● 2026-06-18 00:46:58
○ 2026-06-18 03:42:00
● 2026-06-21 10:44:54
○ 2026-06-21 12:21:00
○ 2026-07-17 19:42:28

○A54.240.184.452026-06-18 → 2026-06-21 · 6 obs

○ 2026-06-17 23:39:04
● 2026-06-18 00:46:58
○ 2026-06-18 03:42:00
● 2026-06-21 10:44:54
○ 2026-06-21 12:21:00
○ 2026-07-17 19:42:28

○A54.240.184.932026-06-18 → 2026-06-21 · 6 obs

○ 2026-06-17 23:39:04
● 2026-06-18 00:46:58
○ 2026-06-18 03:42:00
● 2026-06-21 10:44:54
○ 2026-06-21 12:21:00
○ 2026-07-17 19:42:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
goodnotes.com	ns-99.awsdns-12.com, ns-748.awsdns-29.net, ns-1759.awsdns-27.co.uk, ns-1467.awsdns-55.org	2 records
classroom.goodnotes.com	ns-1533.awsdns-63.org, ns-1738.awsdns-25.co.uk, ns-299.awsdns-37.com, ns-969.awsdns-57.net	-

✅ Authoritative Response

Server:205.251.195.201

NS records: ns-1533.awsdns-63.org, ns-1738.awsdns-25.co.uk, ns-299.awsdns-37.com, ns-969.awsdns-57.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for goodnotes.com (unsigned zone)

⏱️ Timing

Total: 1554ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.166.192.92, 3.166.192.51...`
NS	4	`ns-1533.awsdns-63.org, ns-1738.awsdns-25.co.uk...`
MX	2	`smtp.google.com (pri: 1), k7wdcadawn76eexmop33kcs3cyima3jwhvsao2vg`
SOA	1	`ns-1533.awsdns-63.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-99.awsdns-12.com, ns-99.awsdns-12.com)

Analysis

Hierarchy

api.classroom.goodnotes.com and publishers.classroom.goodnotes.com are both subdomains of classroom.goodnotes.com.

classroom.goodnotes.com has at least partial mail server overlap with other domains such as affordablescreenrepairofswfl.com, hcdesigns.com.au, taku.cool and two more.

These mail servers commonly appear together with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two other mail servers.

Hostnames that resolve to 9 IP addresses:

smtp.google.com resolves to 142.250.31.26, 142.250.31.27 and 142.251.111.26 among others, with 6 other IP addresses in total.

classroom.goodnotes.com - dns.ninja