checkprep.com - dns.ninja

`checkprep.com`

DNSSEC	⚠️ Not signed
A	13.249.96.32^{🇺🇸 Amazon13.249.96.0/24}
		PTR	`server-13-249-96-32.mia3.r.cloudfront.net`
A	13.249.96.43^{🇺🇸 Amazon13.249.96.0/24}
A	13.249.96.103^{🇺🇸 Amazon13.249.96.0/24}
A	13.249.96.125^{🇺🇸 Amazon13.249.96.0/24}
NS	`ns-687.awsdns-21.net` ⭐
		A	2600:9000:5302:af00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-687.awsdns-21.net`
		A	205.251.194.175^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-687.awsdns-21.net`
NS	`ns-1356.awsdns-41.org`
		A	2600:9000:5305:4c00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1356.awsdns-41.org`
		A	205.251.197.76^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1356.awsdns-41.org`
NS	`ns-15.awsdns-01.com`
		A	2600:9000:5300:f00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-15.awsdns-01.com`
		A	205.251.192.15^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-15.awsdns-01.com`
NS	`ns-2013.awsdns-59.co.uk`
		A	2600:9000:5307:dd00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-2013.awsdns-59.co.uk`
		A	205.251.199.221^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-2013.awsdns-59.co.uk`
MX	`smtp.google.com` ⭐
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	2a00:1450:4009:c19::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrp-in-f26.1e100.net`
		A	2a00:1450:4009:c19::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrp-in-f27.1e100.net`
		A	172.217.76.26^{🇺🇸 Google172.217.76.0/24}
			PTR	`yulhrp-in-f26.1e100.net`
		A	172.217.76.27^{🇺🇸 Google172.217.76.0/24}
			PTR	`yulhrp-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
TXT	`google-site-verification=0ZUmI0Wu0LITFJ64mZgtTyE45sEJ9uU3PCAhg0djCCA`
SOA	`ns-687.awsdns-21.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=1782039875

Same first word

checkprep.com

Similar names

prepcheck.com

DNS History

103 records (9 active, 94 former)

●NSns-1356.awsdns-41.org2026-02-23 → 2026-06-21 · 3 obs

○ 2017-04-08 21:21:10
● 2026-02-23 15:32:46
● 2026-06-21 11:18:20

●NSns-15.awsdns-01.com2026-02-23 → 2026-06-21 · 3 obs

○ 2017-04-08 21:21:10
● 2026-02-23 15:32:46
● 2026-06-21 11:18:20

●NSns-2013.awsdns-59.co.uk2026-02-23 → 2026-06-21 · 3 obs

○ 2017-04-08 21:21:10
● 2026-02-23 15:32:46
● 2026-06-21 11:18:20

●NSns-687.awsdns-21.net2026-02-23 → 2026-06-21 · 3 obs

○ 2017-04-08 21:21:10
● 2026-02-23 15:32:46
● 2026-06-21 11:18:20

○NSns03.domaincontrol.com2015-05-28 → 2017-04-08 · 4 obs

● 2015-05-28 01:28:12
● 2017-04-08 21:21:10
○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

○NSns04.domaincontrol.com2015-05-28 → 2017-04-08 · 4 obs

● 2015-05-28 01:28:12
● 2017-04-08 21:21:10
○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

○NSns1.afternic.com2026-02-23 → 2026-06-21 · 2 obs

○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

○NSns2.afternic.com2026-02-23 → 2026-06-21 · 2 obs

○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

○MX.2026-02-23 → 2026-06-21 · 2 obs

○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

○MXmailstore1.secureserver.net2015-05-28 → 2017-04-08 · 4 obs

● 2015-05-28 01:28:12
● 2017-04-08 21:21:10
○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

●MXsmtp.google.com2026-06-17 → 2026-06-21 · 3 obs

○ 2026-02-23 15:32:46
● 2026-06-17 21:32:42
● 2026-06-21 11:18:20

○MXsmtp.secureserver.net2015-05-28 → 2017-04-08 · 4 obs

● 2015-05-28 01:28:12
● 2017-04-08 21:21:10
○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

○A108.138.128.1082026-03-08 → 2026-05-20 · 16 obs

○ 2026-03-07 23:57:18
● 2026-03-08 04:21:04
○ 2026-03-08 06:40:26
○ 2026-03-14 02:10:00
● 2026-03-14 05:43:24
○ 2026-03-14 06:39:40
○ 2026-04-03 01:14:32
● 2026-04-03 03:01:44
○ 2026-04-03 12:10:42
○ 2026-05-19 06:54:48
● 2026-05-19 12:49:58
○ 2026-05-19 19:01:06
○ 2026-05-20 12:00:16
● 2026-05-20 21:08:32
○ 2026-05-20 22:10:48
○ 2026-06-21 11:18:20

○A108.138.128.242026-03-08 → 2026-05-20 · 16 obs

○A108.138.128.502026-03-08 → 2026-05-20 · 16 obs

○A108.138.128.552026-03-08 → 2026-05-20 · 16 obs

○A13.225.196.1102026-04-06 → 2026-04-06 · 4 obs

○ 2026-04-06 00:12:04
● 2026-04-06 07:43:32
○ 2026-04-06 08:30:42
○ 2026-06-21 11:18:20

○A13.225.196.1162026-04-06 → 2026-04-06 · 4 obs

○ 2026-04-06 00:12:04
● 2026-04-06 07:43:32
○ 2026-04-06 08:30:42
○ 2026-06-21 11:18:20

○A13.225.196.542026-04-06 → 2026-04-06 · 4 obs

○ 2026-04-06 00:12:04
● 2026-04-06 07:43:32
○ 2026-04-06 08:30:42
○ 2026-06-21 11:18:20

○A13.225.196.592026-04-06 → 2026-04-06 · 4 obs

○ 2026-04-06 00:12:04
● 2026-04-06 07:43:32
○ 2026-04-06 08:30:42
○ 2026-06-21 11:18:20

○A13.248.169.482026-02-23 → 2026-06-21 · 2 obs

○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

●A13.249.96.1032026-04-08 → 2026-06-21 · 18 obs

○ 2026-04-06 13:16:44
● 2026-04-08 06:31:34
○ 2026-04-08 08:38:28
○ 2026-04-10 00:10:46
● 2026-04-10 02:45:40
○ 2026-04-10 06:30:10
○ 2026-06-08 21:20:08
● 2026-06-08 22:48:58
○ 2026-06-10 05:46:38
○ 2026-06-13 02:10:48
● 2026-06-13 14:36:10
● 2026-06-14 02:51:50
○ 2026-06-14 17:03:14
○ 2026-06-17 21:32:42
● 2026-06-17 22:30:48
○ 2026-06-17 23:40:12
● 2026-06-21 11:00:02
● 2026-06-21 11:18:20

●A13.249.96.1252026-04-08 → 2026-06-21 · 18 obs

●A13.249.96.322026-04-08 → 2026-06-21 · 18 obs

●A13.249.96.432026-04-08 → 2026-06-21 · 18 obs

○A13.249.98.522026-03-28 → 2026-06-01 · 18 obs

○ 2026-03-27 21:57:34
● 2026-03-28 16:51:56
● 2026-03-29 07:38:00
○ 2026-03-29 11:09:14
○ 2026-05-15 12:22:02
● 2026-05-16 00:47:40
○ 2026-05-16 06:11:26
○ 2026-05-17 02:57:44
● 2026-05-17 08:11:32
○ 2026-05-17 22:08:52
○ 2026-05-28 08:50:10
● 2026-05-29 10:16:38
○ 2026-05-29 23:53:32
○ 2026-05-31 08:14:48
● 2026-05-31 10:44:06
● 2026-06-01 00:27:46
○ 2026-06-01 12:58:56
○ 2026-06-21 11:18:20

○A13.249.98.62026-03-28 → 2026-06-01 · 18 obs

○A13.249.98.622026-03-28 → 2026-06-01 · 18 obs

○A13.249.98.992026-03-28 → 2026-06-01 · 18 obs

○A13.33.109.262026-04-21 → 2026-05-26 · 18 obs

○ 2026-04-20 12:42:16
● 2026-04-21 08:21:32
○ 2026-04-21 12:14:04
○ 2026-04-21 18:38:38
● 2026-04-22 00:33:02
○ 2026-04-22 02:57:02
○ 2026-05-14 03:03:10
● 2026-05-14 11:02:40
○ 2026-05-14 11:45:26
○ 2026-05-15 06:25:40
● 2026-05-15 12:22:02
○ 2026-05-15 12:53:26
○ 2026-05-25 18:54:02
● 2026-05-25 19:56:16
○ 2026-05-25 20:33:08
● 2026-05-26 00:52:44
○ 2026-05-26 01:46:44
○ 2026-06-21 11:18:20

○A13.33.109.382026-04-21 → 2026-05-26 · 18 obs

○A13.33.109.432026-04-21 → 2026-05-26 · 18 obs

○A13.33.109.952026-04-21 → 2026-05-26 · 18 obs

○A13.33.235.1022026-03-24 → 2026-06-02 · 10 obs

○ 2026-03-22 15:14:26
● 2026-03-24 18:06:46
○ 2026-03-24 21:47:54
○ 2026-03-25 08:58:50
● 2026-03-25 15:34:20
○ 2026-03-25 23:29:14
○ 2026-06-02 19:27:50
● 2026-06-02 21:25:26
○ 2026-06-02 22:25:18
○ 2026-06-21 11:18:20

○A13.33.235.402026-03-24 → 2026-06-02 · 10 obs

○A13.33.235.632026-03-24 → 2026-06-02 · 10 obs

○A13.33.235.682026-03-24 → 2026-06-02 · 10 obs

○A13.33.82.1292026-04-23 → 2026-05-09 · 16 obs

○ 2026-04-22 02:57:02
● 2026-04-23 02:51:38
○ 2026-04-23 05:04:24
○ 2026-04-27 10:49:48
● 2026-04-27 11:19:56
○ 2026-04-27 15:24:48
○ 2026-04-28 07:49:40
● 2026-04-28 12:13:40
○ 2026-04-28 16:15:40
○ 2026-04-30 11:19:22
● 2026-04-30 17:20:14
○ 2026-04-30 18:44:02
○ 2026-05-09 13:56:40
● 2026-05-09 15:32:16
○ 2026-05-09 16:04:36
○ 2026-06-21 11:18:20

○A13.33.82.392026-04-23 → 2026-05-09 · 16 obs

○A13.33.82.82026-04-23 → 2026-05-09 · 16 obs

○A13.33.82.812026-04-23 → 2026-05-09 · 16 obs

○A143.204.130.1212026-04-20 → 2026-04-20 · 6 obs

○ 2026-04-15 11:41:00
● 2026-04-20 02:26:56
○ 2026-04-20 02:58:28
● 2026-04-20 05:05:30
○ 2026-04-20 12:42:16
○ 2026-06-21 11:18:20

○A143.204.130.1282026-04-20 → 2026-04-20 · 6 obs

○ 2026-04-15 11:41:00
● 2026-04-20 02:26:56
○ 2026-04-20 02:58:28
● 2026-04-20 05:05:30
○ 2026-04-20 12:42:16
○ 2026-06-21 11:18:20

○A143.204.130.162026-04-20 → 2026-04-20 · 6 obs

○ 2026-04-15 11:41:00
● 2026-04-20 02:26:56
○ 2026-04-20 02:58:28
● 2026-04-20 05:05:30
○ 2026-04-20 12:42:16
○ 2026-06-21 11:18:20

○A143.204.130.542026-04-20 → 2026-04-20 · 6 obs

○ 2026-04-15 11:41:00
● 2026-04-20 02:26:56
○ 2026-04-20 02:58:28
● 2026-04-20 05:05:30
○ 2026-04-20 12:42:16
○ 2026-06-21 11:18:20

○A18.161.111.212026-05-26 → 2026-05-28 · 7 obs

○ 2026-05-26 01:46:44
● 2026-05-26 20:24:54
○ 2026-05-26 21:19:24
○ 2026-05-27 16:44:28
● 2026-05-28 07:35:08
○ 2026-05-28 08:50:10
○ 2026-06-21 11:18:20

○A18.161.111.652026-05-26 → 2026-05-28 · 7 obs

○ 2026-05-26 01:46:44
● 2026-05-26 20:24:54
○ 2026-05-26 21:19:24
○ 2026-05-27 16:44:28
● 2026-05-28 07:35:08
○ 2026-05-28 08:50:10
○ 2026-06-21 11:18:20

○A18.161.111.892026-05-26 → 2026-05-28 · 7 obs

○ 2026-05-26 01:46:44
● 2026-05-26 20:24:54
○ 2026-05-26 21:19:24
○ 2026-05-27 16:44:28
● 2026-05-28 07:35:08
○ 2026-05-28 08:50:10
○ 2026-06-21 11:18:20

○A18.161.111.902026-05-26 → 2026-05-28 · 7 obs

○ 2026-05-26 01:46:44
● 2026-05-26 20:24:54
○ 2026-05-26 21:19:24
○ 2026-05-27 16:44:28
● 2026-05-28 07:35:08
○ 2026-05-28 08:50:10
○ 2026-06-21 11:18:20

○A18.165.25.1272026-03-21 → 2026-04-06 · 11 obs

○ 2026-03-18 05:28:50
● 2026-03-21 09:35:50
○ 2026-03-21 11:40:00
○ 2026-03-29 07:38:00
● 2026-03-29 11:09:14
● 2026-03-29 12:32:50
○ 2026-03-29 18:34:00
○ 2026-04-06 07:43:32
● 2026-04-06 08:30:42
○ 2026-04-06 13:16:44
○ 2026-06-21 11:18:20

○A18.165.25.172026-03-21 → 2026-04-06 · 11 obs

○A18.165.25.672026-03-21 → 2026-04-06 · 11 obs

○A18.165.25.862026-03-21 → 2026-04-06 · 11 obs

○A18.238.4.502026-04-14 → 2026-05-08 · 10 obs

○ 2026-04-10 06:30:10
● 2026-04-14 13:43:48
○ 2026-04-14 18:59:50
○ 2026-04-14 21:54:26
● 2026-04-14 23:14:06
○ 2026-04-15 11:41:00
○ 2026-05-08 15:13:50
● 2026-05-08 19:01:10
○ 2026-05-08 20:25:48
○ 2026-06-21 11:18:20

○A18.238.4.512026-04-14 → 2026-05-08 · 10 obs

○A18.238.4.742026-04-14 → 2026-05-08 · 10 obs

○A18.238.4.82026-04-14 → 2026-05-08 · 10 obs

○A18.239.50.1022026-04-05 → 2026-04-05 · 4 obs

○ 2026-04-03 12:10:42
● 2026-04-05 16:28:22
○ 2026-04-06 00:12:04
○ 2026-06-21 11:18:20

○A18.239.50.52026-04-05 → 2026-04-05 · 4 obs

○ 2026-04-03 12:10:42
● 2026-04-05 16:28:22
○ 2026-04-06 00:12:04
○ 2026-06-21 11:18:20

○A18.239.50.552026-04-05 → 2026-04-05 · 4 obs

○ 2026-04-03 12:10:42
● 2026-04-05 16:28:22
○ 2026-04-06 00:12:04
○ 2026-06-21 11:18:20

○A18.239.50.562026-04-05 → 2026-04-05 · 4 obs

○ 2026-04-03 12:10:42
● 2026-04-05 16:28:22
○ 2026-04-06 00:12:04
○ 2026-06-21 11:18:20

○A18.239.6.1052026-05-07 → 2026-05-07 · 6 obs

○ 2026-04-30 18:44:02
● 2026-05-07 17:35:56
○ 2026-05-07 18:55:58
● 2026-05-07 21:32:00
○ 2026-05-07 22:09:58
○ 2026-06-21 11:18:20

○A18.239.6.382026-05-07 → 2026-05-07 · 6 obs

○ 2026-04-30 18:44:02
● 2026-05-07 17:35:56
○ 2026-05-07 18:55:58
● 2026-05-07 21:32:00
○ 2026-05-07 22:09:58
○ 2026-06-21 11:18:20

○A18.239.6.742026-05-07 → 2026-05-07 · 6 obs

○ 2026-04-30 18:44:02
● 2026-05-07 17:35:56
○ 2026-05-07 18:55:58
● 2026-05-07 21:32:00
○ 2026-05-07 22:09:58
○ 2026-06-21 11:18:20

○A18.239.6.912026-05-07 → 2026-05-07 · 6 obs

○ 2026-04-30 18:44:02
● 2026-05-07 17:35:56
○ 2026-05-07 18:55:58
● 2026-05-07 21:32:00
○ 2026-05-07 22:09:58
○ 2026-06-21 11:18:20

○A216.137.53.1152026-02-23 → 2026-06-21 · 18 obs

○ 2017-04-08 21:21:10
● 2026-02-23 15:32:46
● 2026-02-23 21:38:20
○ 2026-02-24 16:40:52
● 2026-02-25 09:41:06
● 2026-03-27 21:57:34
○ 2026-03-28 16:51:56
● 2026-04-02 18:03:24
● 2026-05-19 03:45:18
○ 2026-05-19 06:54:48
○ 2026-06-08 22:48:58
● 2026-06-13 02:10:48
○ 2026-06-16 21:16:20
● 2026-06-21 02:16:52
○ 2026-06-21 05:45:24
● 2026-06-21 10:27:30
○ 2026-06-21 11:00:02
○ 2026-06-21 11:18:20

○A216.137.53.382026-02-23 → 2026-06-21 · 18 obs

○A216.137.53.782026-02-23 → 2026-06-21 · 18 obs

○A216.137.53.912026-02-23 → 2026-06-21 · 18 obs

○A3.162.112.1262026-02-26 → 2026-06-21 · 16 obs

○ 2026-02-26 06:46:56
● 2026-02-26 11:26:36
● 2026-02-26 19:37:38
○ 2026-02-26 22:16:58
● 2026-02-26 23:25:32
○ 2026-02-27 13:29:14
○ 2026-03-02 11:55:56
● 2026-03-03 05:16:28
○ 2026-03-04 01:08:24
○ 2026-06-17 03:08:42
● 2026-06-19 12:00:48
● 2026-06-19 14:26:14
○ 2026-06-19 18:03:12
● 2026-06-21 05:45:24
○ 2026-06-21 10:27:30
○ 2026-06-21 11:18:20

○A3.162.112.1282026-02-26 → 2026-06-21 · 16 obs

○A3.162.112.222026-02-26 → 2026-06-21 · 16 obs

○A3.162.112.762026-02-26 → 2026-06-21 · 16 obs

○A3.162.140.222026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 11:40:00
● 2026-03-22 12:27:56
○ 2026-03-22 15:14:26
○ 2026-06-21 11:18:20

○A3.162.140.542026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 11:40:00
● 2026-03-22 12:27:56
○ 2026-03-22 15:14:26
○ 2026-06-21 11:18:20

○A3.162.140.82026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 11:40:00
● 2026-03-22 12:27:56
○ 2026-03-22 15:14:26
○ 2026-06-21 11:18:20

○A3.162.140.982026-03-22 → 2026-03-22 · 4 obs

○ 2026-03-21 11:40:00
● 2026-03-22 12:27:56
○ 2026-03-22 15:14:26
○ 2026-06-21 11:18:20

○A3.163.101.1022026-03-30 → 2026-06-21 · 18 obs

○ 2026-03-29 18:34:00
● 2026-03-30 00:23:58
○ 2026-03-30 02:03:06
○ 2026-03-30 15:02:26
● 2026-03-30 19:08:44
○ 2026-03-31 12:43:42
● 2026-03-31 22:15:08
● 2026-04-02 06:06:14
○ 2026-04-02 18:03:24
○ 2026-06-18 06:59:14
● 2026-06-18 19:34:54
○ 2026-06-19 12:00:48
○ 2026-06-20 05:23:22
● 2026-06-20 16:59:48
○ 2026-06-20 21:31:40
● 2026-06-21 00:02:54
○ 2026-06-21 02:16:52
○ 2026-06-21 11:18:20

○A3.163.101.1122026-03-30 → 2026-06-21 · 18 obs

○A3.163.101.222026-03-30 → 2026-06-21 · 18 obs

○A3.163.101.282026-03-30 → 2026-06-21 · 18 obs

○A3.167.163.472026-05-20 → 2026-06-08 · 18 obs

○ 2026-05-20 21:08:32
● 2026-05-20 22:10:48
● 2026-05-21 04:58:44
○ 2026-05-21 10:40:58
● 2026-05-21 12:01:02
● 2026-05-28 08:50:10
○ 2026-05-29 10:16:38
● 2026-05-29 23:53:32
● 2026-05-31 08:14:48
○ 2026-05-31 10:44:06
○ 2026-06-01 12:58:56
● 2026-06-02 08:59:54
● 2026-06-07 23:18:32
○ 2026-06-08 03:15:52
○ 2026-06-08 04:03:42
● 2026-06-08 05:24:00
○ 2026-06-08 09:08:40
○ 2026-06-21 11:18:20

○A3.167.163.522026-05-20 → 2026-06-08 · 18 obs

○A3.167.163.852026-05-20 → 2026-06-08 · 18 obs

○A3.167.163.872026-05-20 → 2026-06-08 · 18 obs

○A3.170.185.1092026-05-20 → 2026-06-03 · 14 obs

○ 2026-05-19 19:01:06
● 2026-05-20 06:53:04
○ 2026-05-20 12:00:16
○ 2026-05-24 08:40:54
● 2026-05-24 10:41:00
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○ 2026-05-27 07:36:16
● 2026-05-27 09:40:18
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○ 2026-05-27 12:21:54
○ 2026-06-03 03:20:26
● 2026-06-03 09:29:46
○ 2026-06-03 12:20:34
○ 2026-06-21 11:18:20

○A3.170.185.752026-05-20 → 2026-06-03 · 14 obs

○A3.170.185.842026-05-20 → 2026-06-03 · 14 obs

○A3.170.185.902026-05-20 → 2026-06-03 · 14 obs

○A3.174.255.1152026-03-18 → 2026-05-27 · 7 obs

○ 2026-03-14 06:39:40
● 2026-03-18 02:31:14
○ 2026-03-18 05:28:50
○ 2026-05-26 21:19:24
● 2026-05-27 00:15:26
○ 2026-05-27 01:45:26
○ 2026-06-21 11:18:20

○A3.174.255.1172026-03-18 → 2026-05-27 · 7 obs

○ 2026-03-14 06:39:40
● 2026-03-18 02:31:14
○ 2026-03-18 05:28:50
○ 2026-05-26 21:19:24
● 2026-05-27 00:15:26
○ 2026-05-27 01:45:26
○ 2026-06-21 11:18:20

○A3.174.255.752026-03-18 → 2026-05-27 · 7 obs

○ 2026-03-14 06:39:40
● 2026-03-18 02:31:14
○ 2026-03-18 05:28:50
○ 2026-05-26 21:19:24
● 2026-05-27 00:15:26
○ 2026-05-27 01:45:26
○ 2026-06-21 11:18:20

○A3.174.255.862026-03-18 → 2026-05-27 · 7 obs

○ 2026-03-14 06:39:40
● 2026-03-18 02:31:14
○ 2026-03-18 05:28:50
○ 2026-05-26 21:19:24
● 2026-05-27 00:15:26
○ 2026-05-27 01:45:26
○ 2026-06-21 11:18:20

○A50.63.202.322015-05-28 → 2017-04-08 · 4 obs

● 2015-05-28 01:28:12
● 2017-04-08 21:21:10
○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

○A52.84.20.152026-02-24 → 2026-03-25 · 18 obs

○ 2026-02-23 21:38:20
● 2026-02-24 16:40:52
○ 2026-02-25 09:41:06
○ 2026-02-26 04:01:44
● 2026-02-26 06:46:56
○ 2026-02-26 11:26:36
○ 2026-03-05 18:32:50
● 2026-03-06 02:42:16
● 2026-03-06 11:57:38
○ 2026-03-06 18:34:44
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● 2026-03-07 15:46:26
● 2026-03-07 23:57:18
○ 2026-03-08 04:21:04
○ 2026-03-25 01:09:16
● 2026-03-25 08:58:50
○ 2026-03-25 15:34:20
○ 2026-06-21 11:18:20

○A52.84.20.252026-02-24 → 2026-03-25 · 18 obs

○A52.84.20.572026-02-24 → 2026-03-25 · 18 obs

○A52.84.20.632026-02-24 → 2026-03-25 · 18 obs

○A52.85.118.282026-06-02 → 2026-06-05 · 18 obs

○ 2026-06-01 12:58:56
● 2026-06-02 04:40:24
○ 2026-06-02 05:49:06
● 2026-06-02 07:42:36
○ 2026-06-02 08:59:54
● 2026-06-02 16:40:48
● 2026-06-02 19:27:50
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● 2026-06-03 19:44:54
○ 2026-06-03 21:32:08
○ 2026-06-04 06:15:58
● 2026-06-04 10:53:36
○ 2026-06-04 12:34:28
○ 2026-06-05 07:36:14
● 2026-06-05 11:09:42
○ 2026-06-05 12:18:40
○ 2026-06-21 11:18:20

○A52.85.118.502026-06-02 → 2026-06-05 · 18 obs

○A52.85.118.532026-06-02 → 2026-06-05 · 18 obs

○A52.85.118.582026-06-02 → 2026-06-05 · 18 obs

○A76.223.54.1462026-02-23 → 2026-06-21 · 2 obs

○ 2026-02-23 15:32:46
○ 2026-06-21 11:18:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
checkprep.com	ns-15.awsdns-01.com, ns-687.awsdns-21.net, ns-1356.awsdns-41.org, ns-2013.awsdns-59.co.uk	2 records

✅ Authoritative Response

Server:205.251.199.221

NS records: ns-15.awsdns-01.com, ns-687.awsdns-21.net, ns-1356.awsdns-41.org, ns-2013.awsdns-59.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checkprep.com (unsigned zone)

⏱️ Timing

Total: 305ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.162.112.76, 3.162.112.22...`
NS	4	`ns-1356.awsdns-41.org, ns-15.awsdns-01.com...`
MX	1	`smtp.google.com (pri: 1)`
TXT	1	`google-site-verification=0ZUmI0Wu0LITFJ6`
SOA	1	`ns-687.awsdns-21.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-15.awsdns-01.com, ns-15.awsdns-01.com)

Analysis

IP Addresses

checkprep.com directs to four IP numbers, which are 13.249.96.32, 13.249.96.43, 13.249.96.103 and 13.249.96.125.

pc.retail.offer-display.live.superbet.ro, www.subbrit.org.uk, retquizuclujtieek52016.retail.offer-display.live.superbet.ro plus two other host names have IP numbers in common with checkprep.com.

Name Servers

Four name servers handle the delegation for checkprep.com: ns-15.awsdns-01.com, ns-687.awsdns-21.net, ns-1356.awsdns-41.org and ns-2013.awsdns-59.co.uk.

At least some of checkprep.com's name servers are shared with other domains, for example do2sycafu5aw8.cloudfront.net, dxdhiwng1uuwr.cloudfront.net, depechemode2022.com and two more.

It is common for these name servers to be used in conjunction with the name servers ns-1642.awsdns-13.co.uk, ns-547.awsdns-04.net and ns-1159.awsdns-16.org.

Four hostnames, each resolving to a pair of IP addresses: ns-15.awsdns-01.com directs to 205.251.192.15 and 2600:9000:5300:f00::1; ns-687.awsdns-21.net directs to 205.251.194.175 and 2600:9000:5302:af00::1; ns-1356.awsdns-41.org directs to 205.251.197.76 and 2600:9000:5305:4c00::1; ns-2013.awsdns-59.co.uk directs to 205.251.199.221 and 2600:9000:5307:dd00::1.

Mail Servers

checkprep.com uses one mail server — smtp.google.com.

The mail server setup of checkprep.com matches that of other domains such as revixit.org, andrebarrett.com, pasadenalordchurch.com and two others.

At least some of the mail servers used by checkprep.com are shared with other domains: formscripts.com, hackernest.com, thelifewaychurch.net and two others among them.

It is common to see these mail servers combined with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

smtp.google.com has 8 IP addresses: 172.217.76.26, 172.217.76.27, 192.178.223.26 plus 5 more.