`coretechinfosys.com`

DNSSEC	⚠️ Not signed
A	162.246.23.194^{🇺🇸 NJIIX-1162.246.16.0/21 Proxy by NJIIX.NET}
		PTR	`plesk6400.is.cc`
NS	`plesk6400a.trouble-free.net` ⭐
		A	162.246.23.197^{🇺🇸 NJIIX-1162.246.16.0/21 Proxy by NJIIX.NET}
NS	`plesk6400b.trouble-free.net`
		A	162.246.23.198^{🇺🇸 NJIIX-1162.246.16.0/21 Proxy by NJIIX.NET}
MX	`mail.coretechinfosys.com` ⭐
		A	162.246.23.194^{🇺🇸 NJIIX-1162.246.16.0/21 Proxy by NJIIX.NET}
			PTR	`plesk6400.is.cc`
TXT	`v=spf1 ip4:162.246.23.194 a mx include:relay.mailbaby.net ~all`
SOA	`plesk6400a.trouble-free.net`samer@interserver.net 2026-04-09 #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=1776058567

Subdomains

mail.coretechinfosys.com

Same first word

coretechinfosys.com

DNS History

13 records (4 active, 9 former)

○NSns3.worldispnetwork.com2007-11-15 → 2016-09-21 · 4 obs

● 2007-11-15 12:41:28
● 2016-09-21 19:44:34
○ 2017-11-07 22:43:22
○ 2026-04-13 05:45:24

○NSns4.worldispnetwork.com2007-11-15 → 2016-09-21 · 4 obs

● 2007-11-15 12:41:28
● 2016-09-21 19:44:34
○ 2017-11-07 22:43:22
○ 2026-04-13 05:45:24

●NSplesk6400a.trouble-free.net2026-02-23 → 2026-04-13 · 3 obs

○ 2017-11-07 22:43:22
● 2026-02-23 02:54:00
● 2026-04-13 05:45:24

●NSplesk6400b.trouble-free.net2026-02-23 → 2026-04-13 · 3 obs

○ 2017-11-07 22:43:22
● 2026-02-23 02:54:00
● 2026-04-13 05:45:24

○NSpleskdns1.worldispnetwork.com2017-11-07 → 2017-11-07 · 4 obs

○ 2016-09-21 19:44:34
● 2017-11-07 22:43:22
○ 2026-02-23 02:54:00
○ 2026-04-13 05:45:24

○NSpleskdns2.worldispnetwork.com2017-11-07 → 2017-11-07 · 4 obs

○ 2016-09-21 19:44:34
● 2017-11-07 22:43:22
○ 2026-02-23 02:54:00
○ 2026-04-13 05:45:24

●MXmail.coretechinfosys.com2017-11-07 → 2026-04-13 · 3 obs

○ 2016-09-21 19:44:34
● 2017-11-07 22:43:22
● 2026-04-13 05:45:24

○MXmalta.worldispnetwork.com2015-08-08 → 2016-09-21 · 5 obs

○ 2007-11-15 12:41:28
● 2015-08-08 22:59:04
● 2016-09-21 19:44:34
○ 2017-11-07 22:43:22
○ 2026-04-13 05:45:24

○MXmissouri.worldispnetwork.com2007-11-15 → 2007-11-15 · 3 obs

● 2007-11-15 12:41:28
○ 2015-08-08 22:59:04
○ 2026-04-13 05:45:24

●A162.246.23.1942026-02-23 → 2026-04-13 · 3 obs

○ 2017-11-07 22:43:22
● 2026-02-23 02:54:00
● 2026-04-13 05:45:24

○A205.209.105.272007-11-15 → 2007-11-15 · 3 obs

● 2007-11-15 12:41:28
○ 2015-08-08 22:59:04
○ 2026-04-13 05:45:24

○A216.219.81.1502017-11-07 → 2017-11-07 · 4 obs

○ 2016-09-21 19:44:34
● 2017-11-07 22:43:22
○ 2026-02-23 02:54:00
○ 2026-04-13 05:45:24

○A69.164.251.1312015-08-08 → 2016-09-21 · 5 obs

○ 2007-11-15 12:41:28
● 2015-08-08 22:59:04
● 2016-09-21 19:44:34
○ 2017-11-07 22:43:22
○ 2026-04-13 05:45:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
coretechinfosys.com	plesk6400a.trouble-free.net, plesk6400b.trouble-free.net	-

✅ Authoritative Response

Server:162.246.23.197

NS records: plesk6400a.trouble-free.net, plesk6400b.trouble-free.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coretechinfosys.com (unsigned zone)

⏱️ Timing

Total: 3358ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.246.23.194`
NS	2	`plesk6400b.trouble-free.net, plesk6400a.trouble-free.net`
MX	1	`mail.coretechinfosys.com (pri: 10)`
TXT	1	`v=spf1 ip4:162.246.23.194 a mx include:r`
SOA	1	`plesk6400a.trouble-free.net samer.inters`

Analysis

Hierarchy

coretechinfosys.com is the parent of mail.coretechinfosys.com.

IP Addresses

coretechinfosys.com resolves to a single IP: 162.246.23.194.

Other host names, for instance mail.daplay.org, mail.rgvsc.com, mail.asadox.com, dgs-sa.com and prodatabasesolutions.com share IP numbers with coretechinfosys.com.

Name Servers

coretechinfosys.com has two name servers: plesk6400a.trouble-free.net and plesk6400b.trouble-free.net.

coretechinfosys.com shares the same name server setup as other domains, for example starpointegypt.com, allart.in, afsoft.co.za, buzybeezuk.com and pppama.com.

Host names with a single IP:

plesk6400a.trouble-free.net points to 162.246.23.197

plesk6400b.trouble-free.net points to 162.246.23.198

Mail Servers

coretechinfosys.com is handled by a single mail server, mail.coretechinfosys.com.

Host name mail.coretechinfosys.com points to IP 162.246.23.194.

coretechinfosys.com - robtex.com