`jhlearningcenter.com`

DNSSEC	⚠️ Not signed
NS	`udns1.cscdns.net` ⭐
		A	2001:502:f3ff::201^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`edns1.ultradns.com`
			PTR	`udns1.cscdns.net`
			PTR	`udns1.cscdns.uk`
			PTR	`ns1.webipdns.com.au`
		A	204.74.66.1^{🇺🇸 MAINT-ID-12008204.74.66.0/24 Neustar}
			PTR	`ns1.alba.bank`
			PTR	`edns1.ultradns.com`
			PTR	`udns1.cscdns.net`
			PTR	`udns1.cscdns.uk`
			PTR	`ns1.webipdns.com.au`
NS	`ns0005.secondary.cloudflare.com`
		A	2606:4700:51::a29f:2006^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0005.secondary.cloudflare.com`
		A	162.159.32.6^{Cloudflare162.159.32.0/23 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0005.secondary.cloudflare.com`
NS	`ns0182.secondary.cloudflare.com`
		A	2606:4700:59::a29f:2139^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0182.secondary.cloudflare.com`
		A	162.159.33.57^{Cloudflare162.159.32.0/23 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns0182.secondary.cloudflare.com`
NS	`udns2.cscdns.uk`
		A	2001:502:4612::201^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`udns2.cscdns.net`
			PTR	`edns1.ultradns.org`
			PTR	`udns2.cscdns.uk`
			PTR	`ns2.webipdns.com.au`
		A	204.74.111.1^{🇺🇸 MAINT-ID-12008204.74.111.0/24 Neustar}
			PTR	`ns2.alba.bank`
			PTR	`udns2.cscdns.net`
			PTR	`edns1.ultradns.org`
			PTR	`udns2.cscdns.uk`
			PTR	`ns2.webipdns.com.au`
SOA	`udns1.cscdns.net`premiumdns@support.neustar 2019-11-10 #53

`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=1776097247

Same first word

jhlearningcenter.com

DNS History

13 records (4 active, 9 former)

○NSa4.nstld.com2016-09-17 → 2017-09-07 · 5 obs

○ 2016-04-12 16:47:22
● 2016-09-17 17:53:52
● 2017-09-07 11:25:58
○ 2026-04-09 01:06:22
○ 2026-04-13 16:42:18

○NSf4.nstld.com2016-09-17 → 2017-09-07 · 5 obs

○ 2016-04-12 16:47:22
● 2016-09-17 17:53:52
● 2017-09-07 11:25:58
○ 2026-04-09 01:06:22
○ 2026-04-13 16:42:18

○NSg4.nstld.com2016-09-17 → 2017-09-07 · 5 obs

○ 2016-04-12 16:47:22
● 2016-09-17 17:53:52
● 2017-09-07 11:25:58
○ 2026-04-09 01:06:22
○ 2026-04-13 16:42:18

●NSns0005.secondary.cloudflare.com2026-04-09 → 2026-04-13 · 3 obs

○ 2017-09-07 11:25:58
● 2026-04-09 01:06:22
● 2026-04-13 16:42:18

●NSns0182.secondary.cloudflare.com2026-04-09 → 2026-04-13 · 3 obs

○ 2017-09-07 11:25:58
● 2026-04-09 01:06:22
● 2026-04-13 16:42:18

○NSns1.canadawebhosting.com2015-05-26 → 2016-04-12 · 4 obs

● 2015-05-26 16:21:44
● 2016-04-12 16:47:22
○ 2016-09-17 17:53:52
○ 2026-04-13 16:42:18

○NSns2.canadawebhosting.com2015-05-26 → 2016-04-12 · 4 obs

● 2015-05-26 16:21:44
● 2016-04-12 16:47:22
○ 2016-09-17 17:53:52
○ 2026-04-13 16:42:18

○NSns3.canadawebhosting.com2015-10-28 → 2016-04-12 · 5 obs

○ 2015-05-26 16:21:44
● 2015-10-28 18:40:14
● 2016-04-12 16:47:22
○ 2016-09-17 17:53:52
○ 2026-04-13 16:42:18

●NSudns1.cscdns.net2026-04-09 → 2026-04-13 · 3 obs

○ 2017-09-07 11:25:58
● 2026-04-09 01:06:22
● 2026-04-13 16:42:18

●NSudns2.cscdns.uk2026-04-09 → 2026-04-13 · 3 obs

○ 2017-09-07 11:25:58
● 2026-04-09 01:06:22
● 2026-04-13 16:42:18

○MXmx10.jhlearningcenter.com2015-05-26 → 2016-04-12 · 4 obs

● 2015-05-26 16:21:44
● 2016-04-12 16:47:22
○ 2016-09-17 17:53:52
○ 2026-04-13 16:42:18

○MXmx10.jhlearningcenter.com.jhlearningcenter.com2016-09-17 → 2017-09-07 · 5 obs

○ 2016-04-12 16:47:22
● 2016-09-17 17:53:52
● 2017-09-07 11:25:58
○ 2026-04-09 01:06:22
○ 2026-04-13 16:42:18

○A66.11.152.1952015-05-26 → 2017-09-07 · 4 obs

● 2015-05-26 16:21:44
● 2017-09-07 11:25:58
○ 2026-04-09 01:06:22
○ 2026-04-13 16:42:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jhlearningcenter.com	udns1.cscdns.net, udns2.cscdns.uk, ns0005.secondary.cloudflare.com, ns0182.secondary.cloudflare.com	4 records

✅ Authoritative Response

Server:204.74.66.1

NS records: udns1.cscdns.net, udns2.cscdns.uk, ns0005.secondary.cloudflare.com, ns0182.secondary.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jhlearningcenter.com (unsigned zone)

⏱️ Timing

Total: 437ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`udns1.cscdns.net, udns2.cscdns.uk...`
SOA	1	`udns1.cscdns.net premiumdns.support.neus`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns0005.secondary.cloudflare.com, ns0005.secondary.cloudflare.com, ns0182.secondary.cloudflare.com...)

Analysis

Name Servers

jhlearningcenter.com delegates to four name servers: udns1.cscdns.net, udns2.cscdns.uk, ns0005.secondary.cloudflare.com and ns0182.secondary.cloudflare.com.

jhlearningcenter.com at least partially shares name servers with other domains, including lindehealthcare.it, cloppenburg.it, mozambique-lng.org, tellpopeyespanama.com and scbfhc.com.

Host names with two IP numbers: udns1.cscdns.net points to 2001:502:f3ff::201 and 204.74.66.1; udns2.cscdns.uk points to 2001:502:4612::201 and 204.74.111.1; ns0005.secondary.cloudflare.com points to 2606:4700:51::a29f:2006 and 162.159.32.6; ns0182.secondary.cloudflare.com points to 2606:4700:59::a29f:2139 and 162.159.33.57.

jhlearningcenter.com - robtex.com