`cornerstonelearning.com`

DNSSEC	⚠️ Not signed
A	198.49.23.144^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
		PTR	`ip-198-49-23-144.defastlink.net`
A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`MS=ms20508085`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
TXT	`google-site-verification=5PLdsyJSO4WtBMww7RtrDKJ3NMWM7b4CFtdNTR1K2Ic`
TXT	`v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCRBbNPRFYmpFDxN6ldG6v...`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1710184147

`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=1771291435

Same first word

cornerstonelearning.com

DNS History

16 records (11 active, 5 former)

●NSdns1.registrar-servers.com2015-11-28 → 2026-03-23 · 2 obs

● 2015-11-28 03:37:30
● 2026-03-23 23:41:38

●NSdns2.registrar-servers.com2015-11-28 → 2026-03-23 · 2 obs

● 2015-11-28 03:37:30
● 2026-03-23 23:41:38

○NSdns3.registrar-servers.com2015-11-28 → 2016-07-05 · 4 obs

● 2015-11-28 03:37:30
● 2016-07-05 00:47:36
○ 2017-05-20 19:04:44
○ 2026-03-23 23:41:38

○NSdns4.registrar-servers.com2015-11-28 → 2016-07-05 · 4 obs

● 2015-11-28 03:37:30
● 2016-07-05 00:47:36
○ 2017-05-20 19:04:44
○ 2026-03-23 23:41:38

○NSdns5.registrar-servers.com2015-11-28 → 2016-07-05 · 4 obs

● 2015-11-28 03:37:30
● 2016-07-05 00:47:36
○ 2017-05-20 19:04:44
○ 2026-03-23 23:41:38

○MXaspmx.l.google.com2015-11-28 → 2017-05-20 · 4 obs

● 2015-11-28 03:37:30
● 2017-05-20 19:04:44
○ 2026-02-14 21:37:24
○ 2026-03-23 23:41:38

●MXeforward1.registrar-servers.com2026-02-14 → 2026-03-23 · 3 obs

○ 2017-05-20 19:04:44
● 2026-02-14 21:37:24
● 2026-03-23 23:41:38

●MXeforward2.registrar-servers.com2026-02-14 → 2026-03-23 · 3 obs

○ 2017-05-20 19:04:44
● 2026-02-14 21:37:24
● 2026-03-23 23:41:38

●MXeforward3.registrar-servers.com2026-02-14 → 2026-03-23 · 3 obs

○ 2017-05-20 19:04:44
● 2026-02-14 21:37:24
● 2026-03-23 23:41:38

●MXeforward4.registrar-servers.com2026-02-14 → 2026-03-23 · 3 obs

○ 2017-05-20 19:04:44
● 2026-02-14 21:37:24
● 2026-03-23 23:41:38

●MXeforward5.registrar-servers.com2026-02-14 → 2026-03-23 · 3 obs

○ 2017-05-20 19:04:44
● 2026-02-14 21:37:24
● 2026-03-23 23:41:38

●A198.185.159.1442015-11-28 → 2026-03-23 · 3 obs

○ 2015-07-18 14:45:32
● 2015-11-28 03:37:30
● 2026-03-23 23:41:38

●A198.185.159.1452015-11-28 → 2026-03-23 · 3 obs

○ 2015-07-18 14:45:32
● 2015-11-28 03:37:30
● 2026-03-23 23:41:38

●A198.49.23.1442015-11-28 → 2026-03-23 · 3 obs

○ 2015-07-18 14:45:32
● 2015-11-28 03:37:30
● 2026-03-23 23:41:38

●A198.49.23.1452015-11-28 → 2026-03-23 · 3 obs

○ 2015-07-18 14:45:32
● 2015-11-28 03:37:30
● 2026-03-23 23:41:38

○A74.220.199.62015-07-18 → 2015-07-18 · 4 obs

○ 2008-03-20 16:05:46
● 2015-07-18 14:45:32
○ 2015-11-28 03:37:30
○ 2026-03-23 23:41:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cornerstonelearning.com	dns1.registrar-servers.com, dns2.registrar-servers.com	4 records

✅ Authoritative Response

Server:156.154.133.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cornerstonelearning.com (unsigned zone)

⏱️ Timing

Total: 242ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.185.159.144, 198.185.159.145...`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	4	`MS=ms20508085, v=spf1 include:spf.efwd.registrar-server...`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns1.registrar-servers.com, dns1.registrar-servers.com, dns2.registrar-servers.com...)

Analysis

IP Addresses

cornerstonelearning.com points to four IP numbers: 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

Other host names, for instance collectivelycreative.com, spirax.tech, wickensdesignbuild.com, skylinebusinessgroup.com and tmsystem.org share IP numbers with cornerstonelearning.com.

Name Servers

Delegation for cornerstonelearning.com rests with two name servers, dns1.registrar-servers.com and dns2.registrar-servers.com.

cornerstonelearning.com shares the same name server setup as other domains, including dolak.info, jcb.co, hetsi.store, mikeagam.com and tcicinc.com.

cornerstonelearning.com partially shares name servers with other domains; for instance jonesfamily.com and millerfranklin.com.

Host names with two IP numbers: dns1.registrar-servers.com points to 2610:a1:1024::200 and 156.154.132.200; dns2.registrar-servers.com points to 2610:a1:1025::200 and 156.154.133.200.

Mail Servers

cornerstonelearning.com is handled by five mail servers: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com, eforward4.registrar-servers.com and eforward5.registrar-servers.com.

cornerstonelearning.com shares mail servers with other domains at least in part, for instance leehelland.com, tbook.us, reslycka.com, nagabetvip.com and lijqokniatooaf.com.