`jkoch.com`

DNSSEC	⚠️ Not signed
A	192.185.150.139^{🇺🇸 Jacksonville192.185.144.0/21}
		PTR	`192-185-150-139.unifiedlayer.com`
NS	`ns55.worldnic.com` ⭐
		A	162.159.26.165^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns56.worldnic.com`
		A	162.159.27.8^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`jkoch-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::14^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-byapr04cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:f901::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mn2pr04cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f901::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr02cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr04cu00100.inbound.protection.outlook.com`
		A	52.101.9.20^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00604.inbound.protection.outlook.com`
		A	52.101.11.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr03cu00102.inbound.protection.outlook.com`
		A	52.101.40.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy1pr05cu00402.inbound.protection.outlook.com`
		A	52.101.40.6^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy1pr03cu00106.inbound.protection.outlook.com`
TXT	`MS=ms36978568`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`NS55.WORLDNIC.com`namehost@WORLDNIC.com serial=120030119

`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=1774640577

Same first word

jkoch.com

Similar names

hjkco.com

jhock.com

hcokj.com

jkcho.org

kjcho.info

kjhco.com

DNS History

7 records (4 active, 3 former)

●NSns55.worldnic.com2015-08-05 → 2026-03-27 · 2 obs

● 2015-08-05 07:14:48
● 2026-03-27 20:01:50

●NSns56.worldnic.com2015-08-05 → 2026-03-27 · 2 obs

● 2015-08-05 07:14:48
● 2026-03-27 20:01:50

○MXeast.smtp.exch025.serverdata.net2015-08-05 → 2017-05-23 · 4 obs

● 2015-08-05 07:14:48
● 2017-05-23 08:00:06
○ 2026-03-26 16:33:26
○ 2026-03-27 20:01:50

●MXjkoch-com.mail.protection.outlook.com2026-03-26 → 2026-03-27 · 3 obs

○ 2017-05-23 08:00:06
● 2026-03-26 16:33:26
● 2026-03-27 20:01:50

○MXwest.smtp.exch025.serverdata.net2015-08-05 → 2017-05-23 · 4 obs

● 2015-08-05 07:14:48
● 2017-05-23 08:00:06
○ 2026-03-26 16:33:26
○ 2026-03-27 20:01:50

●A192.185.150.1392015-12-03 → 2026-03-27 · 3 obs

○ 2015-08-05 07:14:48
● 2015-12-03 19:25:12
● 2026-03-27 20:01:50

○A52.125.69.662015-08-05 → 2015-08-05 · 3 obs

● 2015-08-05 07:14:48
○ 2015-12-03 19:25:12
○ 2026-03-27 20:01:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
jkoch.com	ns55.worldnic.com, ns56.worldnic.com	2 records

✅ Authoritative Response

Server:162.159.26.165

NS records: ns55.worldnic.com, ns56.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jkoch.com (unsigned zone)

⏱️ Timing

Total: 360ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.185.150.139`
NS	2	`ns56.worldnic.com, ns55.worldnic.com`
MX	1	`jkoch-com.mail.protection.outlook.com (p`
TXT	2	`MS=ms36978568, v=spf1 include:spf.protection.outlook.co`
SOA	1	`NS55.WORLDNIC.com namehost.WORLDNIC.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns55.worldnic.com, ns56.worldnic.com)

Analysis

IP Addresses

jkoch.com points to an IP address: 192.185.150.139.

other host names include mail.digitalcascade.com, centennialparkgr.com, nmmao.com, kisngo.com and mail.dentaljournal.org; they share IP numbers with jkoch.com.

Name Servers

Two name servers ns55.worldnic.com and ns56.worldnic.com handle the delegation for jkoch.com.

jkoch.com shares the same name server setup as other domains, for instance casanc.net, kamorausa.com, roystonllc.com, devisha.com and usua.com.

Host names with one IP:

ns55.worldnic.com points to: 162.159.26.165

ns56.worldnic.com points to: 162.159.27.8

Mail Servers

jkoch.com is handled by a single mail server, jkoch-com.mail.protection.outlook.com.

Hostname jkoch-com.mail.protection.outlook.com resolves to eight IP numbers: 2a01:111:f403:c902::14, 2a01:111:f403:f901::, 2a01:111:f403:f901::2, 2a01:111:f403:f902::, 52.101.9.20, 52.101.11.2, 52.101.40.2 and 52.101.40.6.

jkoch.com - robtex.com

jkoch.com

com