interviewprep.co - dns.ninja

`interviewprep.co`

DNSSEC	⚠️ Not signed
A	162.255.119.172^{🇺🇸 NAMCHEAP-PH162.255.119.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
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	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1769622241

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759694854

Previously MX for

interviewprep.co

Same first word

interviewprep.info

interviewprep.app

interviewprep.co

Similar names

prepinterview.com

DNS History

25 records (8 active, 17 former)

●NSdns1.registrar-servers.com2026-04-14 → 2026-07-01 · 3 obs

○ 2020-03-28 01:50:36
● 2026-04-14 06:43:40
● 2026-07-01 09:21:24

●NSdns2.registrar-servers.com2026-04-14 → 2026-07-01 · 3 obs

○ 2020-03-28 01:50:36
● 2026-04-14 06:43:40
● 2026-07-01 09:21:24

○NSns41.nettigritty.net2020-03-28 → 2020-03-28 · 4 obs

○ 2017-03-24 05:20:10
● 2020-03-28 01:50:36
○ 2026-04-14 06:43:40
○ 2026-07-01 09:21:24

○NSns42.nettigritty.net2020-03-28 → 2020-03-28 · 4 obs

○ 2017-03-24 05:20:10
● 2020-03-28 01:50:36
○ 2026-04-14 06:43:40
○ 2026-07-01 09:21:24

○NSns53.domaincontrol.com2016-03-14 → 2016-07-07 · 4 obs

● 2016-03-14 04:04:34
● 2016-07-07 23:59:22
○ 2017-03-24 05:20:10
○ 2026-07-01 09:21:24

○NSns54.domaincontrol.com2016-03-14 → 2016-07-07 · 4 obs

● 2016-03-14 04:04:34
● 2016-07-07 23:59:22
○ 2017-03-24 05:20:10
○ 2026-07-01 09:21:24

●MXeforward1.registrar-servers.com2026-04-14 → 2026-07-01 · 3 obs

○ 2020-03-28 01:50:36
● 2026-04-14 06:43:40
● 2026-07-01 09:21:24

●MXeforward2.registrar-servers.com2026-04-14 → 2026-07-01 · 3 obs

○ 2020-03-28 01:50:36
● 2026-04-14 06:43:40
● 2026-07-01 09:21:24

●MXeforward3.registrar-servers.com2026-04-14 → 2026-07-01 · 3 obs

○ 2020-03-28 01:50:36
● 2026-04-14 06:43:40
● 2026-07-01 09:21:24

●MXeforward4.registrar-servers.com2026-04-14 → 2026-07-01 · 3 obs

○ 2020-03-28 01:50:36
● 2026-04-14 06:43:40
● 2026-07-01 09:21:24

●MXeforward5.registrar-servers.com2026-04-14 → 2026-07-01 · 3 obs

○ 2020-03-28 01:50:36
● 2026-04-14 06:43:40
● 2026-07-01 09:21:24

○MXinterviewprep.co2020-03-28 → 2020-03-28 · 4 obs

○ 2017-03-24 05:20:10
● 2020-03-28 01:50:36
○ 2026-04-14 06:43:40
○ 2026-07-01 09:21:24

○MXmailstore1.secureserver.net2016-03-14 → 2016-07-07 · 4 obs

● 2016-03-14 04:04:34
● 2016-07-07 23:59:22
○ 2017-03-24 05:20:10
○ 2026-07-01 09:21:24

○MXsmtp.secureserver.net2016-03-14 → 2016-07-07 · 4 obs

● 2016-03-14 04:04:34
● 2016-07-07 23:59:22
○ 2017-03-24 05:20:10
○ 2026-07-01 09:21:24

●A162.255.119.1722026-04-14 → 2026-07-01 · 3 obs

○ 2020-03-28 01:50:36
● 2026-04-14 06:43:40
● 2026-07-01 09:21:24

○A184.168.221.402016-03-14 → 2016-07-07 · 5 obs

○ 2015-08-22 16:21:10
● 2016-03-14 04:04:34
● 2016-07-07 23:59:22
○ 2017-03-24 05:20:10
○ 2026-07-01 09:21:24

○A34.192.118.1092017-03-24 → 2017-03-24 · 4 obs

○ 2016-07-07 23:59:22
● 2017-03-24 05:20:10
○ 2020-03-28 01:50:36
○ 2026-07-01 09:21:24

○A43.252.88.962020-03-28 → 2020-03-28 · 4 obs

○ 2017-03-24 05:20:10
● 2020-03-28 01:50:36
○ 2026-04-14 06:43:40
○ 2026-07-01 09:21:24

○A50.19.76.2472017-03-24 → 2017-03-24 · 4 obs

○ 2016-07-07 23:59:22
● 2017-03-24 05:20:10
○ 2020-03-28 01:50:36
○ 2026-07-01 09:21:24

○A52.7.166.1832017-03-24 → 2017-03-24 · 4 obs

○ 2016-07-07 23:59:22
● 2017-03-24 05:20:10
○ 2020-03-28 01:50:36
○ 2026-07-01 09:21:24

○A54.173.8.1732015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 16:21:10
○ 2026-04-14 06:43:40
○ 2026-07-01 09:21:24

○A54.86.114.1042015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 16:21:10
○ 2026-04-14 06:43:40
○ 2026-07-01 09:21:24

○CNAMEpr-co-suspensions.go.co2017-03-24 → 2017-03-24 · 4 obs

○ 2015-12-08 06:33:20
● 2017-03-24 05:20:10
○ 2020-03-28 01:50:36
○ 2026-07-01 09:21:24

○CNAMEpr-co-suspensions.neuweb.biz2015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 16:21:10
○ 2015-12-08 06:33:20
○ 2026-07-01 09:21:24

○CNAMEreg-pr-web-suspensionpages-go-co-1680484254.us-east-1.elb.amazonaws.com2017-03-24 → 2017-03-24 · 4 obs

○ 2015-12-08 06:33:20
● 2017-03-24 05:20:10
○ 2020-03-28 01:50:36
○ 2026-07-01 09:21:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	b.registrydns.co, d.registrydns.co, a.registrydns.co, c.registrydns.co	-
interviewprep.co	dns1.registrar-servers.com, dns2.registrar-servers.com	-

✅ 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 interviewprep.co (unsigned zone)

⏱️ Timing

Total: 636ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.255.119.172`
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	1	`v=spf1 include:spf.efwd.registrar-server`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

Analysis

IP Addresses

interviewprep.co has exactly one IP address — 162.255.119.172.

landuu.com, kaipono.com, connorhamiltonphotography.com plus two other host names have IP numbers in common with interviewprep.co.

Name Servers

interviewprep.co is delegated to two name servers: dns1.registrar-servers.com and dns2.registrar-servers.com.

The name server configuration of interviewprep.co is shared with other domains, for instance acacyan.com, (0x6675636b)foreverever.com, rfiduino.com and two others.

interviewprep.co partially shares its name servers with domains like chinesetakeoutrestaurants.com and epidemicofabsence.com.

These name servers regularly co-occur with the name servers dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

dns1.registrar-servers.com and dns2.registrar-servers.com each resolve to two IP addresses: dns1.registrar-servers.com points to 156.154.132.200 and 2610:a1:1024::200, while dns2.registrar-servers.com points to 156.154.133.200 and 2610:a1:1025::200.

Mail Servers

Mail for interviewprep.co is handled by five mail servers, namely eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

At least some of the mail servers used by interviewprep.co are shared with other domains: russianwomen.club, sangchanhteam.com, greaterearnedrevenue.com and two others among them.

These mail servers often appear in conjunction with the mail servers eforward4.registrar-servers.com, eforward5.registrar-servers.com, eforward6.registrar-servers.com and eforward7.registrar-servers.com.

Host names resolving to a single IP address:

eforward1.registrar-servers.com points to 162.255.118.51.

eforward2.registrar-servers.com points to 162.255.118.52.

eforward3.registrar-servers.com points to 162.255.118.51.

eforward4.registrar-servers.com points to 162.255.118.52.

eforward5.registrar-servers.com points to 162.255.118.51.

Three host names point to 162.255.118.51: eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com.

eforward2.registrar-servers.com and eforward4.registrar-servers.com are host names that each point to 162.255.118.52 IP addresses.