prepcheck.com - dns.ninja

`prepcheck.com`

DNSSEC	⚠️ Not signed
A	3.33.251.168^{🇺🇸 Amazon3.33.240.0/20}
		PTR	`aec037177372cc6cd.awsglobalaccelerator.com`
A	15.197.225.128^{🇺🇸 Amazon15.197.224.0/20}
NS	`ns53.domaincontrol.com` ⭐
		A	2603:5:21a2::1b^{🇺🇸 GODADDY-DNS2603:5:21a0::/44}
			PTR	`ns53.domaincontrol.com`
		A	97.74.106.27^{🇺🇸 GODADDY-DNS97.74.106.0/23}
			PTR	`ns53.domaincontrol.com`
NS	`ns54.domaincontrol.com`
		A	2603:5:22a2::1b^{🇺🇸 GODADDY-DNS2603:5:22a0::/44}
			PTR	`ns54.domaincontrol.com`
		A	173.201.74.27^{🇺🇸 GODADDY-DNS173.201.74.0/23}
			PTR	`ns54.domaincontrol.com`
MX	`prepcheck-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c91d::a^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr21cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm2pr04cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:f802::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01403.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr05cu00402.inbound.protection.outlook.com`
		A	52.101.9.26^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00702.inbound.protection.outlook.com`
		A	52.101.10.5^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn6pr04cu00105.inbound.protection.outlook.com`
		A	52.101.41.6^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr03cu01406.inbound.protection.outlook.com`
		A	52.101.50.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
TXT	`NETORGFT10433872.onmicrosoft.com`
TXT	`v=spf1 include:secureserver.net -all`
SOA	`ns53.domaincontrol.com`dns@jomax.net 2026-03-23 #0

`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=1782167505

Same first word

prepcheck.com

Similar names

checkprep.com

DNS History

16 records (5 active, 11 former)

○NSdns1.name-services.com2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 06:05:30
○ 2015-07-15 15:30:34
○ 2026-06-22 23:01:32

○NSdns2.name-services.com2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 06:05:30
○ 2015-07-15 15:30:34
○ 2026-06-22 23:01:32

○NSdns3.name-services.com2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 06:05:30
○ 2015-07-15 15:30:34
○ 2026-06-22 23:01:32

○NSdns4.name-services.com2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 06:05:30
○ 2015-07-15 15:30:34
○ 2026-06-22 23:01:32

○NSdns5.name-services.com2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 06:05:30
○ 2015-07-15 15:30:34
○ 2026-06-22 23:01:32

●NSns53.domaincontrol.com2015-07-15 → 2026-06-22 · 3 obs

○ 2007-10-31 06:05:30
● 2015-07-15 15:30:34
● 2026-06-22 23:01:32

●NSns54.domaincontrol.com2017-09-06 → 2026-06-22 · 3 obs

○ 2015-07-15 15:30:34
● 2017-09-06 10:46:52
● 2026-06-22 23:01:32

○MXmail.prepcheck.com2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 06:05:30
○ 2015-07-15 15:30:34
○ 2026-06-22 23:01:32

○MXmailstore1.secureserver.net2015-07-15 → 2017-09-06 · 4 obs

○ 2007-10-31 06:05:30
● 2015-07-15 15:30:34
● 2017-09-06 10:46:52
○ 2026-06-22 23:01:32

●MXprepcheck-com.mail.protection.outlook.com2026-06-22 → 2026-06-22 · 2 obs

○ 2017-09-06 10:46:52
● 2026-06-22 23:01:32

○MXsmtp.secureserver.net2015-07-15 → 2017-09-06 · 4 obs

○ 2007-10-31 06:05:30
● 2015-07-15 15:30:34
● 2017-09-06 10:46:52
○ 2026-06-22 23:01:32

●A15.197.225.1282026-06-22 → 2026-06-22 · 2 obs

○ 2017-09-06 10:46:52
● 2026-06-22 23:01:32

○A184.168.221.302015-07-15 → 2016-02-05 · 5 obs

○ 2007-10-31 06:05:30
● 2015-07-15 15:30:34
● 2016-02-05 13:47:18
○ 2016-11-12 22:58:30
○ 2026-06-22 23:01:32

●A3.33.251.1682026-06-22 → 2026-06-22 · 2 obs

○ 2017-09-06 10:46:52
● 2026-06-22 23:01:32

○A50.63.202.92016-11-12 → 2017-09-06 · 4 obs

○ 2016-02-05 13:47:18
● 2016-11-12 22:58:30
● 2017-09-06 10:46:52
○ 2026-06-22 23:01:32

○A68.98.211.142007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 06:05:30
○ 2015-07-15 15:30:34
○ 2026-06-22 23:01:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
prepcheck.com	ns53.domaincontrol.com, ns54.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.74.27

NS records: ns53.domaincontrol.com, ns54.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prepcheck.com (unsigned zone)

⏱️ Timing

Total: 91ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`15.197.225.128, 3.33.251.168`
NS	2	`ns53.domaincontrol.com, ns54.domaincontrol.com`
MX	1	`prepcheck-com.mail.protection.outlook.co`
TXT	2	`NETORGFT10433872.onmicrosoft.com, v=spf1 include:secureserver.net -all`
SOA	1	`ns53.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns53.domaincontrol.com, ns53.domaincontrol.com, ns54.domaincontrol.com...)

Analysis

IP Addresses

prepcheck.com directs to two IP numbers, 3.33.251.168 and 15.197.225.128

churchrevitalize.com, k9ramp.com, loresonline.com and two other host names share IP numbers with prepcheck.com.

Name Servers

prepcheck.com uses two name servers for its delegation: ns53.domaincontrol.com and ns54.domaincontrol.com.

prepcheck.com uses the same name servers as several other domains — among them clanwew.com, johnsonbaker.com, claudiascaninebakery.com and two more.

At least some of prepcheck.com's name servers are also used by other domains, among them bhavanatech.com.

The two host names ns53.domaincontrol.com and ns54.domaincontrol.com each have a pair of IP addresses: ns53.domaincontrol.com has 97.74.106.27 and 2603:5:21a2::1b, and ns54.domaincontrol.com has 173.201.74.27 and 2603:5:22a2::1b.

Mail Servers

Mail for prepcheck.com is handled by a single mail server, prepcheck-com.mail.protection.outlook.com.

prepcheck-com.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.9.26, 52.101.10.5, 52.101.41.6 and 5 others.