cdyn.com - dns.ninja

`cdyn.com`

DNSSEC	⚠️ Not signed
A	206.72.205.67^{🇺🇸 NJIIX-1206.72.192.0/20 Proxy by NJIIX.NET}
NS	`dns2004a.trouble-free.net` ⭐
		A	206.72.205.66^{🇺🇸 NJIIX-1206.72.192.0/20 Proxy by NJIIX.NET}
NS	`dns2004b.trouble-free.net`
		A	174.138.186.62^{🇺🇸 NJIIX-1174.138.176.0/20 InterServer}
MX	`cdyn.com` ⭐
		A	206.72.205.67^{🇺🇸 NJIIX-1206.72.192.0/20 Proxy by NJIIX.NET}
MX	`mail.cdyn.com` ⭐
		A	206.72.205.67^{🇺🇸 NJIIX-1206.72.192.0/20 Proxy by NJIIX.NET}
TXT	`v=DMARC1; p=none; pct=100; rua=mailto:dmarc@cdyn.com; ruf=mailto:dmarc@cdyn.com`
TXT	`v=spf1 ip4:174.138.180.42 include:relay.mailbaby.net +a +mx include:relay.is....`
SOA	`dns2004a.trouble-free.net`john@interserver.net 2026-07-06 #3

`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=1785468387

rank #663035 globally
rank #276885 in the tld

MX for

cdyn.com

Previously MX for

mail.cdyn.com

smtp.cdyn.com

Subdomains

mail.cdyn.com

smtp.cdyn.com

Same first word

cdyn.com

cdyn.dev

Similar names

ydcn.info

ycdn.net

dync.fr

cdny.ws

ycnd.cn

ndyc.cn

cndy.net

nydc.net

yncd.com.cn

dync.co.uk

ycdn.space

cdny.com

ncyd.org

nydc.jp

cydn.com.au

ndyc.net

ndyc.org

dync.com

ncdy.shop

ycdn.co

ycdn.de

nydc.com.au

cnyd.org

ycdn.ru

dcny.com

cnyd.ru

nycd.org

ycdn.pro

yncd.cn

nydc.org

ncdy.com

dync.net

nycd.net

ncyd.com.cn

nydc.co

cynd.net

dync.shop

nycd.us

cndy.org

nydc.cn

nydc.de

cdny.de

cndy.top

dcny.info

ydnc.org

ycdn.com.cn

nydc.org.uk

nydc.co.kr

dync.ru

ycdn.com

cnyd.com

nydc.com

cynd.co.jp

ncyd.com

nydc.us

nydc.info

dnyc.net

ycdn.org

dync.de

cdny.net.cn

nycd.de

ndcy.cn

ycdn.store

cdny.cn

nycd.com

ncyd.net

cnyd.xyz

cdny.net

DNS History

11 records (5 active, 6 former)

●NSdns2004a.trouble-free.net2016-11-17 → 2026-07-31 · 3 obs

○ 2016-07-11 04:40:04
● 2016-11-17 08:37:44
● 2026-07-31 03:43:58

●NSdns2004b.trouble-free.net2016-11-17 → 2026-07-31 · 3 obs

○ 2016-07-11 04:40:04
● 2016-11-17 08:37:44
● 2026-07-31 03:43:58

○NSus2.earth.orderbox-dns.com2015-08-23 → 2016-07-11 · 4 obs

● 2015-08-23 20:21:58
● 2016-07-11 04:40:04
○ 2016-11-17 08:37:44
○ 2026-07-31 03:43:58

○NSus2.mars.orderbox-dns.com2015-08-23 → 2016-07-11 · 4 obs

● 2015-08-23 20:21:58
● 2016-07-11 04:40:04
○ 2016-11-17 08:37:44
○ 2026-07-31 03:43:58

○NSus2.mercury.orderbox-dns.com2015-08-23 → 2016-07-11 · 4 obs

● 2015-08-23 20:21:58
● 2016-07-11 04:40:04
○ 2016-11-17 08:37:44
○ 2026-07-31 03:43:58

○NSus2.venus.orderbox-dns.com2015-08-23 → 2016-07-11 · 4 obs

● 2015-08-23 20:21:58
● 2016-07-11 04:40:04
○ 2016-11-17 08:37:44
○ 2026-07-31 03:43:58

●MXcdyn.com2016-11-17 → 2026-07-31 · 3 obs

○ 2015-08-23 20:21:58
● 2016-11-17 08:37:44
● 2026-07-31 03:43:58

●MXmail.cdyn.com2026-02-25 → 2026-07-31 · 3 obs

○ 2016-12-29 07:09:02
● 2026-02-25 16:01:10
● 2026-07-31 03:43:58

○MXsmtp.cdyn.com2015-08-23 → 2016-12-29 · 4 obs

● 2015-08-23 20:21:58
● 2016-12-29 07:09:02
○ 2026-02-25 16:01:10
○ 2026-07-31 03:43:58

○A173.11.90.2102015-08-23 → 2016-07-11 · 4 obs

● 2015-08-23 20:21:58
● 2016-07-11 04:40:04
○ 2016-11-17 08:37:44
○ 2026-07-31 03:43:58

●A206.72.205.672016-11-17 → 2026-07-31 · 3 obs

○ 2016-07-11 04:40:04
● 2016-11-17 08:37:44
● 2026-07-31 03:43:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
cdyn.com	dns2004a.trouble-free.net, dns2004b.trouble-free.net	-

✅ Authoritative Response

Server:174.138.186.62

NS records: dns2004a.trouble-free.net, dns2004b.trouble-free.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cdyn.com (unsigned zone)

⏱️ Timing

Total: 303ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`206.72.205.67`
NS	2	`dns2004a.trouble-free.net, dns2004b.trouble-free.net`
MX	2	`mail.cdyn.com (pri: 0), cdyn.com (pri: 0)`
TXT	2	`v=DMARC1; p=none; pct=100; rua=mailto:dm, v=spf1 ip4:174.138.180.42 include:relay.`
SOA	1	`dns2004a.trouble-free.net john.interserv`

Analysis

Hierarchy

The parent domain of mail.cdyn.com and smtp.cdyn.com is cdyn.com.

Mail Server Role

The MX record for cdyn.com points back to cdyn.com — it is its own mail server.

mail.cdyn.com and cdyn.com are commonly paired as mail servers.

IP Addresses

cdyn.com directs to one IP number, which is 206.72.205.67.

Among the host names that share IP numbers with cdyn.com are mail.bdcom.ca, benmarresearch.com, erinmike.com and two others.

Name Servers

cdyn.com has two authoritative name servers — dns2004a.trouble-free.net and dns2004b.trouble-free.net.

cdyn.com has the same name server delegation as a number of other domains, such as pcserviceplus.net.ve, beforesunriseonline.com, beesmart.gr and two more.

Some of cdyn.com's name servers are also used by other domains, including bdcom.ca, bangladesh2000.com, echosante.info and greatlettering.com.

These name servers regularly co-occur with the name servers cdns1.interserver.net, cdns2.interserver.net and cdns3.interserver.net.

dns2004a.trouble-free.net resolves to 206.72.205.66. dns2004b.trouble-free.net resolves to 174.138.186.62. Both host names point to a single IP number.

Mail Servers

Mail for cdyn.com is routed through two mail servers — cdyn.com and mail.cdyn.com.

cdyn.com and mail.cdyn.com each point to one IP address — 206.72.205.67.

The host names cdyn.com and mail.cdyn.com both resolve to 206.72.205.67 IP addresses.