`dfcolo.com`

DNSSEC	⚠️ Not signed
A	192.64.78.116^{🇺🇸 AS19133192.64.76.0/22 Elite Internet Communications / Innovative Scaling Technologies}
		PTR	`ip-192-64-78-116.innoscale.net`
NS	`oak.forest.net` ⭐
		A	216.168.32.230^{🇺🇸 DF-3361216.168.32.0/19 Digital Fortress, Inc.}
			PTR	`oak.forest.net`
NS	`willow.forest.net`
		A	216.168.39.46^{🇺🇸 DF-3361216.168.32.0/19 Digital Fortress, Inc.}
			PTR	`willow.forest.net`
MX	`dfcolo-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c91d::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mw2pr04cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:c91d::a^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr21cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:f909::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr04cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f90d::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr0501cu00301.inbound.protection.outlook.com`
		A	52.101.9.20^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00604.inbound.protection.outlook.com`
		A	52.101.11.17^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr0501cu00301.inbound.protection.outlook.com`
		A	52.101.40.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy5pr05cu00100.inbound.protection.outlook.com`
		A	52.101.194.19^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch5pr02cu00303.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com -all`
TXT	`176E7FCB86`
SOA	`oak.forest.net`hostmaster@oak.forest.net 2026-03-05 #2

`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=1777036706

WOT: SAFE (90/100)

Subdomains

nagios-we.dfcolo.com

Same first word

dfcolo.com

Similar names

coldof.com

clfood.com.tw

foldoc.org

coolfd.com

focold.com.br

clfood.co.kr

lcfood.com

docflo.de

DNS History

15 records (4 active, 11 former)

●NSoak.forest.net2015-08-22 → 2026-04-24 · 2 obs

● 2015-08-22 20:26:46
● 2026-04-24 13:32:32

●NSwillow.forest.net2015-08-22 → 2026-04-24 · 2 obs

● 2015-08-22 20:26:46
● 2026-04-24 13:32:32

●MXdfcolo-com.mail.protection.outlook.com2016-06-11 → 2026-04-24 · 3 obs

○ 2016-05-08 22:07:38
● 2016-06-11 06:59:32
● 2026-04-24 13:32:32

○MXsmtpedge.chinookcommunications.com2015-08-22 → 2016-04-03 · 4 obs

● 2015-08-22 20:26:46
● 2016-04-03 18:28:06
○ 2016-05-08 22:07:38
○ 2026-04-24 13:32:32

○MXsmtpedge01.chinookcommunications.com2015-08-22 → 2016-05-08 · 4 obs

● 2015-08-22 20:26:46
● 2016-05-08 22:07:38
○ 2016-06-11 06:59:32
○ 2026-04-24 13:32:32

○MXsmtpedge02.chinookcommunications.com2015-08-22 → 2016-05-08 · 4 obs

● 2015-08-22 20:26:46
● 2016-05-08 22:07:38
○ 2016-06-11 06:59:32
○ 2026-04-24 13:32:32

○MXsmtpedge03.chinookcommunications.com2016-05-08 → 2016-05-08 · 4 obs

○ 2016-04-03 18:28:06
● 2016-05-08 22:07:38
○ 2016-06-11 06:59:32
○ 2026-04-24 13:32:32

○MXsmtpedge04.chinookcommunications.com2016-05-08 → 2016-05-08 · 4 obs

○ 2016-04-03 18:28:06
● 2016-05-08 22:07:38
○ 2016-06-11 06:59:32
○ 2026-04-24 13:32:32

○A104.196.16.502016-12-25 → 2017-08-24 · 5 obs

○ 2016-08-18 14:20:32
● 2016-12-25 03:49:22
● 2017-08-24 11:03:16
○ 2026-04-04 15:29:32
○ 2026-04-24 13:32:32

○A138.91.225.402015-12-09 → 2016-04-03 · 5 obs

○ 2015-11-09 20:34:16
● 2015-12-09 15:17:08
● 2016-04-03 18:28:06
○ 2016-05-08 22:07:38
○ 2026-04-24 13:32:32

○A146.20.39.1692016-05-08 → 2016-08-01 · 5 obs

○ 2016-04-03 18:28:06
● 2016-05-08 22:07:38
● 2016-08-01 02:49:02
○ 2016-08-18 14:20:32
○ 2026-04-24 13:32:32

●A192.64.78.1162026-04-04 → 2026-04-24 · 3 obs

○ 2017-08-24 11:03:16
● 2026-04-04 15:29:32
● 2026-04-24 13:32:32

○A23.251.150.522016-08-18 → 2016-08-18 · 4 obs

○ 2016-08-01 02:49:02
● 2016-08-18 14:20:32
○ 2016-12-25 03:49:22
○ 2026-04-24 13:32:32

○A45.33.72.1402015-11-09 → 2015-11-09 · 4 obs

○ 2015-08-22 20:26:46
● 2015-11-09 20:34:16
○ 2015-12-09 15:17:08
○ 2026-04-24 13:32:32

○A45.56.88.1902015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 20:26:46
○ 2015-11-09 20:34:16
○ 2026-04-24 13:32:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
dfcolo.com	oak.forest.net, willow.forest.net	-

✅ Authoritative Response

Server:216.168.32.230

NS records: oak.forest.net, willow.forest.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dfcolo.com (unsigned zone)

⏱️ Timing

Total: 501ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.64.78.116`
NS	2	`willow.forest.net, oak.forest.net`
MX	1	`dfcolo-com.mail.protection.outlook.com (`
TXT	2	`176E7FCB86, v=spf1 include:spf.protection.outlook.co`
SOA	1	`oak.forest.net hostmaster.oak.forest.net`

Analysis

Hierarchy

dfcolo.com is the parent of nagios-we.dfcolo.com.

IP Addresses

dfcolo.com points to IP number 192.64.78.116.

Other host names include mailnexus.com, mkpchicago.org, buckeyefamily.net and hinsdaleadvancedeyecare.com that share IP numbers with dfcolo.com.

Name Servers

dfcolo.com is delegated to two name servers: oak.forest.net and willow.forest.net.

dfcolo.com uses the same name server setup as other domains such as 40.168.216.in-addr.arpa, xobox.net, 33.168.216.in-addr.arpa, nacmo.com and 4582.forest.net.

dfcolo.com shares name servers with other domains at least partially, for instance curacao-travelguide.com, heidilussi.com and myfocusgroup.net.

Host names with one IP number:

oak.forest.net points to: 216.168.32.230.

willow.forest.net points to: 216.168.39.46.

Mail Servers

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

Host name dfcolo-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c91d::, 2a01:111:f403:c91d::a, 2a01:111:f403:f909::, 2a01:111:f403:f90d::1, 52.101.9.20, 52.101.11.17, 52.101.40.24 and 52.101.194.19.

dfcolo.com - robtex.com

dfcolo.com

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