offcourse.io - dns.ninja

`offcourse.io`

DNSSEC	⚠️ Not signed
A	3.170.42.49^{🇺🇸 Amazon3.170.40.0/22}
		PTR	`server-3-170-42-49.iad61.r.cloudfront.net`
A	3.170.42.94^{🇺🇸 Amazon3.170.40.0/22}
A	3.170.42.123^{🇺🇸 Amazon3.170.40.0/22}
A	3.170.42.128^{🇺🇸 Amazon3.170.40.0/22}
NS	`ns-1860.awsdns-40.co.uk` ⭐
		A	2600:9000:5307:4400::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1860.awsdns-40.co.uk`
		A	205.251.199.68^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1860.awsdns-40.co.uk`
NS	`ns-1375.awsdns-43.org`
		A	2600:9000:5305:5f00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1375.awsdns-43.org`
		A	205.251.197.95^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1375.awsdns-43.org`
NS	`ns-1763.awsdns-28.co.uk`
		A	2600:9000:5306:e300::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1763.awsdns-28.co.uk`
		A	205.251.198.227^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1763.awsdns-28.co.uk`
NS	`ns-352.awsdns-44.com`
		A	2600:9000:5301:6000::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-352.awsdns-44.com`
		A	205.251.193.96^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-352.awsdns-44.com`
NS	`ns-623.awsdns-13.net`
		A	2600:9000:5302:6f00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-623.awsdns-13.net`
		A	205.251.194.111^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-623.awsdns-13.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	172.253.62.26^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
SOA	`ns-1860.awsdns-40.co.uk`awsdns-hostmaster@amazon.com serial=1

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1783802226

Subdomains

www.offcourse.io

Same first word

offcourse.co

offcourse.net

offcourse.nl

offcourse.org

offcourse.golf

offcourse.com.tr

offcourse.io

offcourse.dk

offcourse.bike

offcourse.se

offcourse.no

offcourse.biz

offcourse.be

offcourse.com

offcourse.ca

offcourse.de

offcourse.jp

offcourse.in

Similar names

freofocus.com

courseoff.com

freofocus.com.au

forefocus.com

offsource.com

DNS History

91 records (14 active, 77 former)

●NSns-1375.awsdns-43.org2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●NSns-1763.awsdns-28.co.uk2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●NSns-1860.awsdns-40.co.uk2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●NSns-352.awsdns-44.com2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●NSns-623.awsdns-13.net2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●MXalt1.aspmx.l.google.com2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●MXalt2.aspmx.l.google.com2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●MXalt3.aspmx.l.google.com2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●MXalt4.aspmx.l.google.com2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

●MXaspmx.l.google.com2018-09-20 → 2026-07-11 · 2 obs

● 2018-09-20 01:28:50
● 2026-07-11 20:57:34

○A104.198.14.522018-09-20 → 2018-09-20 · 3 obs

● 2018-09-20 01:28:50
○ 2026-02-22 00:41:42
○ 2026-07-11 20:57:34

○A108.139.119.1202026-04-10 → 2026-06-07 · 18 obs

○ 2026-04-07 16:33:48
● 2026-04-10 20:56:30
○ 2026-04-12 05:01:20
○ 2026-04-15 09:52:00
● 2026-04-16 10:46:48
● 2026-04-18 11:59:20
○ 2026-04-18 16:49:44
○ 2026-05-15 23:27:12
● 2026-05-16 00:46:04
○ 2026-05-16 23:08:14
○ 2026-06-06 09:49:12
● 2026-06-06 17:48:20
● 2026-06-06 19:59:54
○ 2026-06-07 06:42:54
○ 2026-06-07 09:29:34
● 2026-06-07 17:34:56
○ 2026-06-07 18:56:12
○ 2026-07-11 20:57:34

○A108.139.119.1252026-04-10 → 2026-06-07 · 18 obs

○A108.139.119.182026-04-10 → 2026-06-07 · 18 obs

○A108.139.119.222026-04-10 → 2026-06-07 · 18 obs

○A108.158.122.1032026-07-01 → 2026-07-03 · 8 obs

○ 2026-07-01 03:20:22
● 2026-07-01 20:39:18
○ 2026-07-02 00:53:10
● 2026-07-02 21:48:48
○ 2026-07-03 05:45:20
● 2026-07-03 08:36:00
○ 2026-07-03 12:07:08
○ 2026-07-11 20:57:34

○A108.158.122.1092026-07-01 → 2026-07-03 · 8 obs

○ 2026-07-01 03:20:22
● 2026-07-01 20:39:18
○ 2026-07-02 00:53:10
● 2026-07-02 21:48:48
○ 2026-07-03 05:45:20
● 2026-07-03 08:36:00
○ 2026-07-03 12:07:08
○ 2026-07-11 20:57:34

○A108.158.122.1112026-07-01 → 2026-07-03 · 8 obs

○ 2026-07-01 03:20:22
● 2026-07-01 20:39:18
○ 2026-07-02 00:53:10
● 2026-07-02 21:48:48
○ 2026-07-03 05:45:20
● 2026-07-03 08:36:00
○ 2026-07-03 12:07:08
○ 2026-07-11 20:57:34

○A108.158.122.602026-07-01 → 2026-07-03 · 8 obs

○ 2026-07-01 03:20:22
● 2026-07-01 20:39:18
○ 2026-07-02 00:53:10
● 2026-07-02 21:48:48
○ 2026-07-03 05:45:20
● 2026-07-03 08:36:00
○ 2026-07-03 12:07:08
○ 2026-07-11 20:57:34

○A13.227.207.1032026-03-28 → 2026-07-11 · 48 obs

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

○A13.227.207.1292026-03-28 → 2026-07-11 · 48 obs

○A13.227.207.312026-03-28 → 2026-07-11 · 48 obs

○A13.227.207.932026-03-28 → 2026-07-11 · 48 obs

○A13.32.205.1082026-05-21 → 2026-06-30 · 29 obs

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

○A13.32.205.242026-05-21 → 2026-06-30 · 29 obs

○A13.32.205.692026-05-21 → 2026-06-30 · 29 obs

○A13.32.205.812026-05-21 → 2026-06-30 · 29 obs

○A13.33.109.1272026-05-17 → 2026-05-19 · 7 obs

○ 2026-05-16 23:08:14
● 2026-05-17 00:25:42
○ 2026-05-17 08:50:54
○ 2026-05-19 06:34:12
● 2026-05-19 11:11:52
○ 2026-05-21 02:13:22
○ 2026-07-11 20:57:34

○A13.33.109.1292026-05-17 → 2026-05-19 · 7 obs

○ 2026-05-16 23:08:14
● 2026-05-17 00:25:42
○ 2026-05-17 08:50:54
○ 2026-05-19 06:34:12
● 2026-05-19 11:11:52
○ 2026-05-21 02:13:22
○ 2026-07-11 20:57:34

○A13.33.109.192026-05-17 → 2026-05-19 · 7 obs

○ 2026-05-16 23:08:14
● 2026-05-17 00:25:42
○ 2026-05-17 08:50:54
○ 2026-05-19 06:34:12
● 2026-05-19 11:11:52
○ 2026-05-21 02:13:22
○ 2026-07-11 20:57:34

○A13.33.109.832026-05-17 → 2026-05-19 · 7 obs

○ 2026-05-16 23:08:14
● 2026-05-17 00:25:42
○ 2026-05-17 08:50:54
○ 2026-05-19 06:34:12
● 2026-05-19 11:11:52
○ 2026-05-21 02:13:22
○ 2026-07-11 20:57:34

○A13.33.67.1062026-03-14 → 2026-03-14 · 6 obs

○ 2026-03-14 06:31:42
● 2026-03-14 14:23:58
○ 2026-03-14 14:55:06
● 2026-03-14 16:07:44
○ 2026-03-14 20:37:14
○ 2026-07-11 20:57:34

○A13.33.67.432026-03-14 → 2026-03-14 · 6 obs

○ 2026-03-14 06:31:42
● 2026-03-14 14:23:58
○ 2026-03-14 14:55:06
● 2026-03-14 16:07:44
○ 2026-03-14 20:37:14
○ 2026-07-11 20:57:34

○A13.33.67.472026-03-14 → 2026-03-14 · 6 obs

○ 2026-03-14 06:31:42
● 2026-03-14 14:23:58
○ 2026-03-14 14:55:06
● 2026-03-14 16:07:44
○ 2026-03-14 20:37:14
○ 2026-07-11 20:57:34

○A13.33.67.722026-03-14 → 2026-03-14 · 6 obs

○ 2026-03-14 06:31:42
● 2026-03-14 14:23:58
○ 2026-03-14 14:55:06
● 2026-03-14 16:07:44
○ 2026-03-14 20:37:14
○ 2026-07-11 20:57:34

○A13.33.82.1172026-04-26 → 2026-05-09 · 17 obs

○ 2026-04-25 19:11:16
● 2026-04-26 00:30:56
○ 2026-04-26 07:08:32
○ 2026-04-27 05:02:40
● 2026-04-27 18:10:00
○ 2026-04-28 14:12:16
○ 2026-04-29 19:00:36
● 2026-04-30 00:32:08
○ 2026-04-30 05:19:22
○ 2026-05-03 06:21:28
● 2026-05-04 21:17:42
● 2026-05-05 00:25:42
○ 2026-05-05 13:32:56
○ 2026-05-09 09:01:44
● 2026-05-09 13:11:48
○ 2026-05-09 20:54:24
○ 2026-07-11 20:57:34

○A13.33.82.1192026-04-26 → 2026-05-09 · 17 obs

○A13.33.82.472026-04-26 → 2026-05-09 · 17 obs

○A13.33.82.572026-04-26 → 2026-05-09 · 17 obs

○A13.35.202.182026-05-26 → 2026-05-30 · 12 obs

○ 2026-05-26 18:59:34
● 2026-05-26 22:10:04
○ 2026-05-26 23:03:48
○ 2026-05-28 20:17:00
● 2026-05-29 00:25:52
● 2026-05-29 00:59:24
○ 2026-05-29 04:59:12
○ 2026-05-29 20:09:38
● 2026-05-30 02:40:34
● 2026-05-30 04:15:02
○ 2026-05-30 10:30:50
○ 2026-07-11 20:57:34

○A13.35.202.352026-05-26 → 2026-05-30 · 12 obs

○A13.35.202.422026-05-26 → 2026-05-30 · 12 obs

○A13.35.202.912026-05-26 → 2026-05-30 · 12 obs

○A18.164.174.1012026-07-03 → 2026-07-10 · 20 obs

○ 2026-07-02 21:48:48
● 2026-07-03 05:45:20
○ 2026-07-03 08:36:00
● 2026-07-03 12:07:08
○ 2026-07-03 20:52:54
● 2026-07-04 19:08:06
○ 2026-07-04 23:27:16
● 2026-07-07 20:15:34
○ 2026-07-07 20:54:36
● 2026-07-07 21:34:38
○ 2026-07-08 09:29:30
● 2026-07-08 11:39:56
○ 2026-07-08 16:54:58
● 2026-07-08 20:38:26
○ 2026-07-09 00:42:34
● 2026-07-09 02:51:32
○ 2026-07-09 05:50:32
● 2026-07-10 11:27:32
○ 2026-07-10 12:14:46
○ 2026-07-11 20:57:34

○A18.164.174.362026-07-03 → 2026-07-10 · 20 obs

○A18.164.174.792026-07-03 → 2026-07-10 · 20 obs

○A18.164.174.802026-07-03 → 2026-07-10 · 20 obs

○A18.165.122.152026-07-11 → 2026-07-11 · 4 obs

○ 2026-07-10 12:14:46
● 2026-07-11 16:28:06
○ 2026-07-11 18:59:04
○ 2026-07-11 20:57:34

○A18.165.122.172026-07-11 → 2026-07-11 · 4 obs

○ 2026-07-10 12:14:46
● 2026-07-11 16:28:06
○ 2026-07-11 18:59:04
○ 2026-07-11 20:57:34

○A18.165.122.442026-07-11 → 2026-07-11 · 4 obs

○ 2026-07-10 12:14:46
● 2026-07-11 16:28:06
○ 2026-07-11 18:59:04
○ 2026-07-11 20:57:34

○A18.165.122.92026-07-11 → 2026-07-11 · 4 obs

○ 2026-07-10 12:14:46
● 2026-07-11 16:28:06
○ 2026-07-11 18:59:04
○ 2026-07-11 20:57:34

○A18.244.140.1062026-05-17 → 2026-05-17 · 6 obs

○ 2026-05-17 00:25:42
● 2026-05-17 08:50:54
○ 2026-05-17 21:00:22
● 2026-05-17 21:45:18
○ 2026-05-18 23:01:40
○ 2026-07-11 20:57:34

○A18.244.140.742026-05-17 → 2026-05-17 · 6 obs

○ 2026-05-17 00:25:42
● 2026-05-17 08:50:54
○ 2026-05-17 21:00:22
● 2026-05-17 21:45:18
○ 2026-05-18 23:01:40
○ 2026-07-11 20:57:34

○A18.244.140.842026-05-17 → 2026-05-17 · 6 obs

○ 2026-05-17 00:25:42
● 2026-05-17 08:50:54
○ 2026-05-17 21:00:22
● 2026-05-17 21:45:18
○ 2026-05-18 23:01:40
○ 2026-07-11 20:57:34

○A18.244.140.872026-05-17 → 2026-05-17 · 6 obs

○ 2026-05-17 00:25:42
● 2026-05-17 08:50:54
○ 2026-05-17 21:00:22
● 2026-05-17 21:45:18
○ 2026-05-18 23:01:40
○ 2026-07-11 20:57:34

○A18.66.255.152026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 04:23:00
● 2026-06-17 03:50:06
○ 2026-06-17 07:38:58
○ 2026-07-11 20:57:34

○A18.66.255.392026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 04:23:00
● 2026-06-17 03:50:06
○ 2026-06-17 07:38:58
○ 2026-07-11 20:57:34

○A18.66.255.422026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 04:23:00
● 2026-06-17 03:50:06
○ 2026-06-17 07:38:58
○ 2026-07-11 20:57:34

○A18.66.255.882026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-16 04:23:00
● 2026-06-17 03:50:06
○ 2026-06-17 07:38:58
○ 2026-07-11 20:57:34

○A18.67.233.1162026-05-27 → 2026-06-05 · 20 obs

○ 2026-05-27 08:18:22
● 2026-05-27 16:38:34
○ 2026-05-27 17:21:08
● 2026-05-27 20:40:22
○ 2026-05-27 21:22:54
○ 2026-05-28 01:25:58
● 2026-05-28 08:01:16
○ 2026-05-28 10:01:52
○ 2026-05-29 07:21:54
● 2026-05-29 08:59:36
● 2026-05-29 20:09:38
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○A18.67.233.272026-05-27 → 2026-06-05 · 20 obs

○A18.67.233.602026-05-27 → 2026-06-05 · 20 obs

○A18.67.233.932026-05-27 → 2026-06-05 · 20 obs

○A3.161.150.1202026-04-02 → 2026-06-30 · 48 obs

○ 2026-03-31 17:44:24
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○A3.161.150.392026-04-02 → 2026-06-30 · 48 obs

○A3.161.150.612026-04-02 → 2026-06-30 · 48 obs

○A3.161.150.92026-04-02 → 2026-06-30 · 48 obs

○A3.161.188.1182026-04-02 → 2026-04-02 · 4 obs

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○A3.161.188.292026-04-02 → 2026-04-02 · 4 obs

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○A3.161.188.572026-04-02 → 2026-04-02 · 4 obs

○ 2026-04-02 10:48:16
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○A3.161.188.972026-04-02 → 2026-04-02 · 4 obs

○ 2026-04-02 10:48:16
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●A3.170.42.1232026-03-14 → 2026-07-11 · 49 obs

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●A3.170.42.1282026-03-14 → 2026-07-11 · 49 obs

●A3.170.42.492026-03-14 → 2026-07-11 · 49 obs

●A3.170.42.942026-03-14 → 2026-07-11 · 49 obs

○A3.171.22.32026-05-21 → 2026-05-30 · 22 obs

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○A3.171.22.472026-05-21 → 2026-05-30 · 22 obs

○A3.171.22.592026-05-21 → 2026-05-30 · 22 obs

○A3.171.22.722026-05-21 → 2026-05-30 · 22 obs

○A3.174.59.1082026-05-07 → 2026-06-01 · 21 obs

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○A3.174.59.1252026-05-07 → 2026-06-01 · 21 obs

○A3.174.59.572026-05-07 → 2026-06-01 · 21 obs

○A3.174.59.892026-05-07 → 2026-06-01 · 21 obs

○A52.84.118.1192026-02-22 → 2026-07-03 · 59 obs

○ 2018-09-20 01:28:50
● 2026-02-22 00:41:42
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○A52.84.118.462026-02-22 → 2026-07-03 · 59 obs

○A52.84.118.512026-02-22 → 2026-07-03 · 59 obs

○A52.84.118.842026-02-22 → 2026-07-03 · 59 obs

○A52.84.20.1052026-02-25 → 2026-03-17 · 17 obs

○ 2026-02-22 00:41:42
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● 2026-02-25 07:23:30
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● 2026-03-17 13:20:24
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○A52.84.20.402026-02-25 → 2026-03-17 · 17 obs

○A52.84.20.582026-02-25 → 2026-03-17 · 17 obs

○A52.84.20.632026-02-25 → 2026-03-17 · 17 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
offcourse.io	ns-623.awsdns-13.net, ns-1763.awsdns-28.co.uk, ns-352.awsdns-44.com, ns-1375.awsdns-43.org	-

✅ Authoritative Response

Server:205.251.197.95

NS records: ns-623.awsdns-13.net, ns-1763.awsdns-28.co.uk, ns-352.awsdns-44.com, ns-1375.awsdns-43.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for offcourse.io (unsigned zone)

⏱️ Timing

Total: 922ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.42.94, 3.170.42.128...`
NS	4	`ns-1375.awsdns-43.org, ns-1763.awsdns-28.co.uk...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
SOA	1	`ns-1860.awsdns-40.co.uk awsdns-hostmaste`

Analysis

Hierarchy

The domain www.offcourse.io falls under the parent offcourse.io.

IP Addresses

offcourse.io directs to four IP numbers, which are 3.170.42.49, 3.170.42.94, 3.170.42.123 and 3.170.42.128.

img.grepcv.com, d18iymmap3iq1l.cloudfront.net, affinityatwallawalla.com plus two other host names have IP numbers in common with offcourse.io.

Name Servers

Five name servers handle delegation for offcourse.io: ns-352.awsdns-44.com, ns-623.awsdns-13.net, ns-1375.awsdns-43.org and two others.

At least some of offcourse.io's name servers are shared with other domains, for example edu.community, d2lp1vn7xpa9tf.cloudfront.net, camarasjriopardo.sp.gov.br and two more.

These name servers tend to be deployed in combination with the name servers ns-1763.awsdns-28.co.uk and ns-1860.awsdns-40.co.uk.

Host names pointing to two IP addresses:

ns-352.awsdns-44.com directs traffic to 205.251.193.96 and 2600:9000:5301:6000::1.

ns-623.awsdns-13.net directs traffic to 205.251.194.111 and 2600:9000:5302:6f00::1.

ns-1375.awsdns-43.org directs traffic to 205.251.197.95 and 2600:9000:5305:5f00::1.

ns-1763.awsdns-28.co.uk directs traffic to 205.251.198.227 and 2600:9000:5306:e300::1.

ns-1860.awsdns-40.co.uk directs traffic to 205.251.199.68 and 2600:9000:5307:4400::1.