zenithbioscience.com - dns.ninja

`zenithbioscience.com`

DNSSEC	⚠️ Not signed
A	13.32.16.23^{🇺🇸 Amazon13.32.0.0/14 NA Prefix}
		PTR	`server-13-32-16-23.gru1.r.cloudfront.net`
A	13.32.16.74^{🇺🇸 Amazon13.32.0.0/14 NA Prefix}
A	13.32.16.89^{🇺🇸 Amazon13.32.0.0/14 NA Prefix}
A	13.32.16.124^{🇺🇸 Amazon13.32.0.0/14 NA Prefix}
NS	`ns-501.awsdns-62.com` ⭐
		A	2600:9000:5301:f500::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-501.awsdns-62.com`
		A	205.251.193.245^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-501.awsdns-62.com`
NS	`ns-1527.awsdns-62.org`
		A	2600:9000:5305:f700::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1527.awsdns-62.org`
		A	205.251.197.247^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1527.awsdns-62.org`
NS	`ns-1786.awsdns-31.co.uk`
		A	2600:9000:5306:fa00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1786.awsdns-31.co.uk`
		A	205.251.198.250^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1786.awsdns-31.co.uk`
NS	`ns-821.awsdns-38.net`
		A	2600:9000:5303:3500::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-821.awsdns-38.net`
		A	205.251.195.53^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-821.awsdns-38.net`
MX	`mx2.zoho.com` ⭐
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`google-site-verification=QghqEoEuV807dyTqxthVuGCpUp4bwZitFtrWkVGgK8o`
TXT	`v=spf1 include:_spf.mailersend.net include:zoho.com -all`
SOA	`ns-501.awsdns-62.com`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=1783779497

Previously MX for

zenithbioscience.com

Subdomains

cdn.zenithbioscience.com

Same first word

zenithbioscience.com

DNS History

103 records (11 active, 92 former)

●NSns-1527.awsdns-62.org2026-02-15 → 2026-07-11 · 3 obs

○ 2015-11-01 20:42:24
● 2026-02-15 23:36:44
● 2026-07-11 14:37:38

●NSns-1786.awsdns-31.co.uk2026-02-15 → 2026-07-11 · 3 obs

○ 2015-11-01 20:42:24
● 2026-02-15 23:36:44
● 2026-07-11 14:37:38

●NSns-501.awsdns-62.com2026-02-15 → 2026-07-11 · 3 obs

○ 2015-11-01 20:42:24
● 2026-02-15 23:36:44
● 2026-07-11 14:37:38

●NSns-821.awsdns-38.net2026-02-15 → 2026-07-11 · 3 obs

○ 2015-11-01 20:42:24
● 2026-02-15 23:36:44
● 2026-07-11 14:37:38

○NSns1.securedhosting.in2015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 05:31:36
○ 2015-11-01 20:42:24
○ 2026-07-11 14:37:38

○NSns2.securedhosting.in2015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 05:31:36
○ 2015-11-01 20:42:24
○ 2026-07-11 14:37:38

●MXmx.zoho.com2026-02-15 → 2026-07-11 · 5 obs

○ 2015-11-01 20:42:24
● 2026-02-15 23:36:44
○ 2026-06-25 02:11:14
● 2026-06-25 03:25:08
● 2026-07-11 14:37:38

●MXmx2.zoho.com2026-02-15 → 2026-07-11 · 5 obs

○ 2015-11-01 20:42:24
● 2026-02-15 23:36:44
○ 2026-06-25 02:11:14
● 2026-06-25 03:25:08
● 2026-07-11 14:37:38

●MXmx3.zoho.com2026-02-15 → 2026-07-11 · 5 obs

○ 2015-11-01 20:42:24
● 2026-02-15 23:36:44
○ 2026-06-25 02:11:14
● 2026-06-25 03:25:08
● 2026-07-11 14:37:38

○MXzenithbioscience.com2015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 05:31:36
○ 2015-11-01 20:42:24
○ 2026-07-11 14:37:38

○A108.138.64.1032026-04-19 → 2026-04-19 · 4 obs

○ 2026-04-16 10:01:10
● 2026-04-19 10:22:04
○ 2026-04-19 14:54:42
○ 2026-07-11 14:37:38

○A108.138.64.1222026-04-19 → 2026-04-19 · 4 obs

○ 2026-04-16 10:01:10
● 2026-04-19 10:22:04
○ 2026-04-19 14:54:42
○ 2026-07-11 14:37:38

○A108.138.64.732026-04-19 → 2026-04-19 · 4 obs

○ 2026-04-16 10:01:10
● 2026-04-19 10:22:04
○ 2026-04-19 14:54:42
○ 2026-07-11 14:37:38

○A108.138.64.82026-04-19 → 2026-04-19 · 4 obs

○ 2026-04-16 10:01:10
● 2026-04-19 10:22:04
○ 2026-04-19 14:54:42
○ 2026-07-11 14:37:38

○A13.227.207.1162026-03-28 → 2026-06-10 · 18 obs

○ 2026-03-26 03:45:04
● 2026-03-28 11:15:20
● 2026-03-28 17:08:06
○ 2026-03-28 21:35:40
○ 2026-05-21 21:20:08
● 2026-05-22 06:30:44
○ 2026-05-22 17:05:00
○ 2026-05-29 00:04:22
● 2026-05-29 10:42:50
○ 2026-05-29 22:47:02
○ 2026-05-31 08:38:54
● 2026-05-31 16:50:14
○ 2026-06-02 01:22:16
○ 2026-06-09 23:58:14
● 2026-06-10 02:46:32
● 2026-06-10 15:50:12
○ 2026-06-10 18:18:54
○ 2026-07-11 14:37:38

○A13.227.207.1252026-03-28 → 2026-06-10 · 18 obs

○A13.227.207.232026-03-28 → 2026-06-10 · 18 obs

○A13.227.207.542026-03-28 → 2026-06-10 · 18 obs

○A13.249.182.1082026-02-16 → 2026-07-11 · 24 obs

○ 2026-02-16 02:00:16
● 2026-02-16 03:32:48
○ 2026-02-16 04:50:38
○ 2026-02-16 06:03:54
● 2026-02-16 08:58:20
● 2026-02-18 03:34:38
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● 2026-02-27 10:23:18
● 2026-03-01 10:26:32
○ 2026-03-02 00:36:14
● 2026-03-03 03:35:06
● 2026-03-05 03:41:44
○ 2026-03-05 17:15:44
○ 2026-06-08 09:02:06
● 2026-06-08 10:08:52
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● 2026-07-08 05:48:12
○ 2026-07-08 13:47:42
● 2026-07-09 15:55:28
○ 2026-07-09 16:29:34
● 2026-07-11 02:01:34
○ 2026-07-11 06:34:24
○ 2026-07-11 14:37:38

○A13.249.182.882026-02-16 → 2026-07-11 · 24 obs

○A13.249.182.912026-02-16 → 2026-07-11 · 24 obs

○A13.249.182.972026-02-16 → 2026-07-11 · 24 obs

●A13.32.16.1242026-06-11 → 2026-07-11 · 41 obs

○ 2026-06-10 18:18:54
● 2026-06-11 11:58:04
○ 2026-06-12 01:36:06
○ 2026-06-12 02:42:14
● 2026-06-12 06:39:10
○ 2026-06-12 15:06:36
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● 2026-06-13 08:01:12
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● 2026-06-14 06:49:44
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● 2026-06-15 07:22:58
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○ 2026-06-15 19:55:56
● 2026-06-16 01:02:50
○ 2026-06-16 07:36:00
● 2026-06-30 22:41:26
○ 2026-07-01 21:20:08
● 2026-07-02 00:54:30
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○ 2026-07-07 16:27:42
● 2026-07-07 18:54:26
○ 2026-07-08 05:48:12
● 2026-07-08 13:47:42
○ 2026-07-09 15:55:28
● 2026-07-09 16:29:34
○ 2026-07-10 00:19:46
● 2026-07-10 04:00:04
○ 2026-07-10 14:24:38
● 2026-07-10 16:40:46
○ 2026-07-10 22:39:06
● 2026-07-11 06:34:24
○ 2026-07-11 07:20:14
● 2026-07-11 10:28:04
● 2026-07-11 14:37:38

●A13.32.16.232026-06-11 → 2026-07-11 · 41 obs

●A13.32.16.742026-06-11 → 2026-07-11 · 41 obs

●A13.32.16.892026-06-11 → 2026-07-11 · 41 obs

○A13.32.179.1252026-03-30 → 2026-06-30 · 38 obs

○ 2026-03-28 21:35:40
● 2026-03-30 03:17:28
● 2026-03-30 05:17:06
○ 2026-03-30 06:50:26
○ 2026-04-01 11:13:00
● 2026-04-02 00:19:24
○ 2026-04-02 13:56:58
○ 2026-06-18 17:43:14
● 2026-06-19 07:30:48
● 2026-06-19 14:28:58
○ 2026-06-19 22:05:54
● 2026-06-20 07:56:40
○ 2026-06-20 11:58:22
● 2026-06-20 12:43:44
○ 2026-06-20 13:14:46
● 2026-06-22 16:13:40
○ 2026-06-22 18:48:40
● 2026-06-24 20:28:56
○ 2026-06-24 22:54:04
● 2026-06-25 07:09:12
○ 2026-06-25 08:33:00
● 2026-06-26 01:07:28
○ 2026-06-26 05:12:58
● 2026-06-26 11:40:06
○ 2026-06-26 13:36:40
● 2026-06-26 16:04:08
○ 2026-06-26 21:26:18
● 2026-06-27 03:42:36
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● 2026-06-27 09:11:36
○ 2026-06-27 16:52:14
● 2026-06-29 17:37:02
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● 2026-06-29 19:17:14
○ 2026-06-29 20:48:02
● 2026-06-30 01:25:04
○ 2026-06-30 02:19:54
○ 2026-07-11 14:37:38

○A13.32.179.202026-03-30 → 2026-06-30 · 38 obs

○A13.32.179.542026-03-30 → 2026-06-30 · 38 obs

○A13.32.179.792026-03-30 → 2026-06-30 · 38 obs

○A13.32.205.1232026-05-19 → 2026-07-02 · 22 obs

○ 2026-05-19 07:18:14
● 2026-05-19 20:00:06
● 2026-05-19 21:17:06
○ 2026-05-20 02:19:06
● 2026-05-20 06:03:48
● 2026-05-21 11:40:14
○ 2026-05-22 06:30:44
○ 2026-05-25 09:57:12
● 2026-05-25 14:26:48
● 2026-05-28 02:28:30
○ 2026-05-28 10:57:04
● 2026-05-29 22:47:02
● 2026-06-07 06:05:46
○ 2026-06-07 13:15:26
● 2026-06-07 20:45:00
● 2026-06-08 07:26:56
○ 2026-06-08 09:02:06
● 2026-07-02 05:34:04
○ 2026-07-02 06:27:14
● 2026-07-02 11:24:04
○ 2026-07-02 13:52:18
○ 2026-07-11 14:37:38

○A13.32.205.132026-05-19 → 2026-07-02 · 22 obs

○A13.32.205.152026-05-19 → 2026-07-02 · 22 obs

○A13.32.205.992026-05-19 → 2026-07-02 · 22 obs

○A13.33.235.1282026-03-22 → 2026-07-11 · 19 obs

○ 2026-03-22 14:36:00
● 2026-03-22 16:02:12
○ 2026-03-22 20:07:34
● 2026-03-22 22:34:20
○ 2026-03-23 01:54:24
● 2026-03-23 08:05:02
○ 2026-03-23 15:26:36
○ 2026-03-24 03:13:26
● 2026-03-24 11:57:36
○ 2026-03-24 15:53:28
● 2026-03-24 21:09:14
● 2026-03-26 01:23:56
○ 2026-03-26 03:45:04
○ 2026-06-02 11:39:14
● 2026-06-02 21:43:12
○ 2026-06-02 22:51:02
● 2026-07-11 07:20:14
○ 2026-07-11 10:28:04
○ 2026-07-11 14:37:38

○A13.33.235.462026-03-22 → 2026-07-11 · 19 obs

○A13.33.235.562026-03-22 → 2026-07-11 · 19 obs

○A13.33.235.662026-03-22 → 2026-07-11 · 19 obs

○A18.154.84.1002026-02-15 → 2026-06-30 · 52 obs

○ 2015-11-01 20:42:24
● 2026-02-15 23:36:44
● 2026-02-16 02:00:16
○ 2026-02-16 03:32:48
○ 2026-03-10 08:11:14
● 2026-03-10 12:37:06
● 2026-05-17 21:45:14
○ 2026-05-18 18:03:18
○ 2026-06-08 07:26:56
● 2026-06-08 09:02:06
● 2026-06-12 22:24:18
○ 2026-06-13 08:01:12
○ 2026-06-19 07:30:48
● 2026-06-20 13:14:46
○ 2026-06-20 18:27:44
● 2026-06-20 20:00:12
○ 2026-06-21 12:28:24
● 2026-06-21 14:18:42
○ 2026-06-21 20:25:36
● 2026-06-21 21:05:54
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○ 2026-06-24 02:35:28
● 2026-06-24 11:58:42
○ 2026-06-24 20:28:56
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● 2026-06-25 08:33:00
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● 2026-06-26 05:12:58
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● 2026-06-26 21:26:18
○ 2026-06-27 01:40:40
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● 2026-06-30 06:37:04
○ 2026-06-30 22:41:26
○ 2026-07-11 14:37:38

○A18.154.84.1042026-02-15 → 2026-06-30 · 52 obs

○A18.154.84.762026-02-15 → 2026-06-30 · 52 obs

○A18.154.84.852026-02-15 → 2026-06-30 · 52 obs

○A18.160.225.1252026-05-25 → 2026-05-30 · 10 obs

○ 2026-05-23 14:59:40
● 2026-05-25 04:32:52
○ 2026-05-25 08:06:10
○ 2026-05-28 20:05:16
● 2026-05-29 00:04:22
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○ 2026-07-11 14:37:38

○A18.160.225.1272026-05-25 → 2026-05-30 · 10 obs

○A18.160.225.192026-05-25 → 2026-05-30 · 10 obs

○A18.160.225.542026-05-25 → 2026-05-30 · 10 obs

○A18.164.144.1082026-05-28 → 2026-06-03 · 14 obs

○ 2026-05-28 02:28:30
● 2026-05-28 10:57:04
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○A18.164.144.162026-05-28 → 2026-06-03 · 14 obs

○A18.164.144.212026-05-28 → 2026-06-03 · 14 obs

○A18.164.144.692026-05-28 → 2026-06-03 · 14 obs

○A18.165.116.1112026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-17 12:10:28
● 2026-06-17 16:49:20
○ 2026-06-17 18:23:28
○ 2026-07-11 14:37:38

○A18.165.116.382026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-17 12:10:28
● 2026-06-17 16:49:20
○ 2026-06-17 18:23:28
○ 2026-07-11 14:37:38

○A18.165.116.482026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-17 12:10:28
● 2026-06-17 16:49:20
○ 2026-06-17 18:23:28
○ 2026-07-11 14:37:38

○A18.165.116.792026-06-17 → 2026-06-17 · 4 obs

○ 2026-06-17 12:10:28
● 2026-06-17 16:49:20
○ 2026-06-17 18:23:28
○ 2026-07-11 14:37:38

○A18.238.80.1252026-02-16 → 2026-03-22 · 16 obs

○ 2026-02-16 03:32:48
● 2026-02-16 04:50:38
● 2026-02-16 06:03:54
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○ 2026-07-11 14:37:38

○A18.238.80.552026-02-16 → 2026-03-22 · 16 obs

○A18.238.80.722026-02-16 → 2026-03-22 · 16 obs

○A18.238.80.932026-02-16 → 2026-03-22 · 16 obs

○A18.239.168.1122026-04-20 → 2026-05-20 · 16 obs

○ 2026-04-19 14:54:42
● 2026-04-20 16:39:32
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○A18.239.168.262026-04-20 → 2026-05-20 · 16 obs

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○A18.239.18.1012026-04-03 → 2026-04-03 · 4 obs

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○A18.239.18.142026-04-03 → 2026-04-03 · 4 obs

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○A18.239.18.722026-04-03 → 2026-04-03 · 4 obs

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○A18.239.18.772026-04-03 → 2026-04-03 · 4 obs

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○A18.245.218.1032026-03-06 → 2026-06-30 · 20 obs

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○A18.245.218.1042026-03-06 → 2026-06-30 · 20 obs

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○A18.66.255.1002026-06-16 → 2026-06-21 · 14 obs

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○A18.66.255.1242026-06-16 → 2026-06-21 · 14 obs

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○A18.66.255.522026-06-16 → 2026-06-21 · 14 obs

○A192.169.216.2032015-06-05 → 2015-06-05 · 3 obs

● 2015-06-05 05:31:36
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○A3.165.181.1262026-04-07 → 2026-04-07 · 9 obs

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○A3.165.181.192026-04-07 → 2026-04-07 · 9 obs

○A3.165.181.582026-04-07 → 2026-04-07 · 9 obs

○A3.165.181.652026-04-07 → 2026-04-07 · 9 obs

○A3.165.232.482026-04-13 → 2026-04-13 · 4 obs

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○A3.165.232.672026-04-13 → 2026-04-13 · 4 obs

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○A3.165.232.822026-04-13 → 2026-04-13 · 4 obs

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○A3.165.232.872026-04-13 → 2026-04-13 · 4 obs

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○A3.173.182.422026-06-13 → 2026-06-29 · 6 obs

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○A3.173.182.432026-06-13 → 2026-06-29 · 6 obs

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○A3.173.182.592026-06-13 → 2026-06-29 · 6 obs

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○A3.173.182.742026-06-13 → 2026-06-29 · 6 obs

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○A3.174.26.1152026-05-16 → 2026-05-18 · 8 obs

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○A3.174.26.382026-05-16 → 2026-05-18 · 8 obs

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○A3.174.26.862026-05-16 → 2026-05-18 · 8 obs

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○A3.174.26.882026-05-16 → 2026-05-18 · 8 obs

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○A3.174.29.1042026-04-09 → 2026-04-16 · 17 obs

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○A3.174.29.552026-04-09 → 2026-04-16 · 17 obs

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○A3.174.59.1052026-04-10 → 2026-07-02 · 21 obs

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○A3.174.59.302026-04-10 → 2026-07-02 · 21 obs

○A52.85.193.1232026-02-16 → 2026-07-10 · 42 obs

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○A52.85.193.552026-02-16 → 2026-07-10 · 42 obs

○A52.85.193.582026-02-16 → 2026-07-10 · 42 obs

○A52.85.193.612026-02-16 → 2026-07-10 · 42 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, l.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net...	-
zenithbioscience.com	ns-501.awsdns-62.com, ns-821.awsdns-38.net, ns-1786.awsdns-31.co.uk, ns-1527.awsdns-62.org	2 records

✅ Authoritative Response

Server:205.251.197.247

NS records: ns-501.awsdns-62.com, ns-821.awsdns-38.net, ns-1786.awsdns-31.co.uk, ns-1527.awsdns-62.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zenithbioscience.com (unsigned zone)

⏱️ Timing

Total: 1672ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`52.85.193.123, 52.85.193.58...`
NS	4	`ns-1527.awsdns-62.org, ns-1786.awsdns-31.co.uk...`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	2	`google-site-verification=QghqEoEuV807dyT, v=spf1 include:_spf.mailersend.net inclu`
SOA	1	`ns-501.awsdns-62.com awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-501.awsdns-62.com, ns-501.awsdns-62.com)

Analysis

Hierarchy

zenithbioscience.com is a parent domain of cdn.zenithbioscience.com.

IP Addresses

zenithbioscience.com resolves to four IP addresses: 13.32.16.23, 13.32.16.74, 13.32.16.89 and 13.32.16.124.

Name Servers

The authoritative name servers for zenithbioscience.com are ns-501.awsdns-62.com, ns-821.awsdns-38.net, ns-1527.awsdns-62.org and ns-1786.awsdns-31.co.uk.

zenithbioscience.com shares at least some of its name servers with other domains, including searchyourea.com, bibgw.com, prd-aws.charter.net and two others.

These name servers are frequently seen alongside ns-261.awsdns-32.com, ns-653.awsdns-17.net, ns-1856.awsdns-40.co.uk and 4 other name servers.

The host names ns-501.awsdns-62.com, ns-821.awsdns-38.net, ns-1527.awsdns-62.org and ns-1786.awsdns-31.co.uk each resolve to two IP addresses: ns-501.awsdns-62.com resolves to 205.251.193.245 and 2600:9000:5301:f500::1; ns-821.awsdns-38.net resolves to 205.251.195.53 and 2600:9000:5303:3500::1; ns-1527.awsdns-62.org resolves to 205.251.197.247 and 2600:9000:5305:f700::1; ns-1786.awsdns-31.co.uk resolves to 205.251.198.250 and 2600:9000:5306:fa00::1.

Mail Servers

zenithbioscience.com is handled by three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

zenithbioscience.com has at least partial mail server overlap with other domains such as agow.com.vn, amsecpro.com, zuihoushiming.com and two more.

mx2.zoho.com resolves to 204.141.33.44, and so do mx3.zoho.com and mx.zoho.com — all three share that one IP address.

The host names mx2.zoho.com, mx3.zoho.com and mx.zoho.com each resolve to 204.141.33.44.