`21stcoop.com`

DNSSEC	⚠️ Not signed
A	66.112.153.16^{🇺🇸 DTN-AS66.112.153.0/24 Data Transmission Network Corporation}
NS	`oma-ns.dtn.com` ⭐
		A	66.112.145.27^{🇺🇸 DTN-AS66.112.145.0/24}
			PTR	`oma-ns.dtn.com`
NS	`des-ns.dtn.com`
		A	66.112.146.27^{🇺🇸 DTN-AS66.112.146.0/24 RR-RC-CoSentry-Kansas City}
			PTR	`des-ns.dtn.com`
MX	`21stcoop-com.mx1.arsmtp.com` ⭐
		A	8.31.233.135^{🇺🇸 APPRI-18.31.233.0/24 AppRiver, LLC 1101 Gulf Breeze Parkway Gulf Breeze, FL 32561 US}
			PTR	`server2030.appriver.com`
MX	`21stcoop-com.mx2.arsmtp.com`⁽²⁰⁾
		A	8.19.118.192^{🇺🇸 AS133808.19.118.0/24 AppRiver, LLC 1101 Gulf Breeze Parkway Gulf Breeze, FL 32561 US}
			PTR	`server2031.appriver.com`
TXT	`v=spf1 include:spf.protection.outlook.com ip4:216.81.179.218 -all`
TXT	`MS=ms69863590`
SOA	`oma-ns.dtn.com`dns@dtn.com 2026-01-15 #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=1785902284

Same first word

21stcoop.com

DNS History

9 records (5 active, 4 former)

●NSdes-ns.dtn.com2015-08-22 → 2026-08-05 · 2 obs

● 2015-08-22 01:42:28
● 2026-08-05 04:16:42

●NSoma-ns.dtn.com2015-08-22 → 2026-08-05 · 2 obs

● 2015-08-22 01:42:28
● 2026-08-05 04:16:42

●MX21stcoop-com.mx1.arsmtp.com2026-07-05 → 2026-08-05 · 3 obs

○ 2017-11-19 14:31:44
● 2026-07-05 03:37:20
● 2026-08-05 04:16:42

●MX21stcoop-com.mx2.arsmtp.com2026-07-05 → 2026-08-05 · 3 obs

○ 2017-11-19 14:31:44
● 2026-07-05 03:37:20
● 2026-08-05 04:16:42

○MXsmtp1.oaklandcorp.com2015-08-22 → 2017-11-19 · 4 obs

● 2015-08-22 01:42:28
● 2017-11-19 14:31:44
○ 2026-07-05 03:37:20
○ 2026-08-05 04:16:42

○MXsmtp2.oaklandcorp.com2015-08-22 → 2017-11-19 · 4 obs

● 2015-08-22 01:42:28
● 2017-11-19 14:31:44
○ 2026-07-05 03:37:20
○ 2026-08-05 04:16:42

○A66.112.150.342015-12-09 → 2017-11-19 · 5 obs

○ 2015-08-22 01:42:28
● 2015-12-09 11:59:16
● 2017-11-19 14:31:44
○ 2026-07-05 03:37:20
○ 2026-08-05 04:16:42

○A66.112.153.12015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 01:42:28
○ 2015-12-09 11:59:16
○ 2026-08-05 04:16:42

●A66.112.153.162015-12-09 → 2026-08-05 · 3 obs

○ 2015-08-22 01:42:28
● 2015-12-09 11:59:16
● 2026-08-05 04:16:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net, k.gtld-servers.net...	-
21stcoop.com	des-ns.dtn.com, oma-ns.dtn.com	2 records

✅ Authoritative Response

Server:66.112.145.27

NS records: des-ns.dtn.com, oma-ns.dtn.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21stcoop.com (unsigned zone)

⏱️ Timing

Total: 212ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`66.112.153.16`
NS	2	`oma-ns.dtn.com, des-ns.dtn.com`
MX	2	`21stcoop-com.mx2.arsmtp.com (pri: 20), 21stcoop-com.mx1.arsmtp.com (pri: 10)`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms69863590`
SOA	1	`oma-ns.dtn.com dns.dtn.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (des-ns.dtn.com, oma-ns.dtn.com)

Analysis

IP Addresses

21stcoop.com has exactly one IP address — 66.112.153.16.

altonterminal.com, agrovalley.net, equitycoop.com plus two other host names have IP numbers in common with 21stcoop.com.

Name Servers

21stcoop.com uses two name servers for its delegation: des-ns.dtn.com and oma-ns.dtn.com.

The name server configuration of 21stcoop.com is shared with other domains, for instance kasbeergrain.com, altonterminal.com, farmmarketid.com and two others.

There is at least partial name server overlap between 21stcoop.com and other domains — hubcitylivestock.net, connellgrange.com, interquote.com and two more among them.

des-ns.dtn.com → 66.112.146.27 and oma-ns.dtn.com → 66.112.145.27: one IP number per host name.

Mail Servers

21stcoop.com uses two mail servers, 21stcoop-com.mx1.arsmtp.com and 21stcoop-com.mx2.arsmtp.com.

21stcoop-com.mx1.arsmtp.com → 8.31.233.135 and 21stcoop-com.mx2.arsmtp.com → 8.19.118.192: one IP number per host name.

21stcoop.com - robtex.com

21stcoop.com

com