`cnet-training.com`

DNSSEC	⚠️ Not signed
A	54.237.5.77^{🇺🇸 Amazon54.237.0.0/16 EC2 IAD prefix}
		PTR	`ec2-54-237-5-77.compute-1.amazonaws.com`
NS	`darwin.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b97^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`darwin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c197^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`darwin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2197^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`darwin.ns.cloudflare.com`
		A	108.162.193.151^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`darwin.ns.cloudflare.com`
		A	172.64.33.151^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`darwin.ns.cloudflare.com`
		A	173.245.59.151^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`darwin.ns.cloudflare.com`
NS	`gwen.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gwen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gwen.ns.cloudflare.com`
		A	108.162.192.160^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	172.64.32.160^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
		A	173.245.58.160^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gwen.ns.cloudflare.com`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`0ed1fe018aec09f953fac94758b1564f401a22058d`
TXT	`13vrv0i159jnr4gtd8vq8o7d6b`
TXT	`B1GFPQdQ0Q7vN0BtRTxPvPx7eBwqIp6c`
TXT	`MS=ms18016332`
TXT	`MS=ms52304073`
TXT	`atlassian-domain-verification=Na967p1ITmY8aZxmSRBtcWGBwlmNZKLmCo19/iihgWyPSxy...`
TXT	`atlassian-sending-domain-verification=9fd4e65c-17dc-4326-a27d-7139cfa6d1a4`
TXT	`gl8p8pv8ht2abi40pdmrjmqsqh`
TXT	`google-site-verification=om7cNcZb2JEsk9YZ69a58Ef-nc2Gk4bqsEqwUbhpW50`
TXT	`knowbe4-site-verification=d31cbbdf5cc86ebf5f39b248e1c64f51`
TXT	`oh2i45gu5r31lbcjfb6p66o9ik`
TXT	`v=spf1 include:_netblocks.mimecast.com include:spf.exclaimer.net include:spf....`
SOA	`darwin.ns.cloudflare.com`dns@cloudflare.com serial=2397468560

`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=1771291435

rank #824460 globally
rank #377004 in the tld

Subdomains

email.cnet-training.com

www.cnet-training.com

Same first word

cnet-training.com

DNS History

14 records (5 active, 9 former)

●NSdarwin.ns.cloudflare.com2026-02-23 → 2026-03-10 · 3 obs

○ 2017-01-28 02:30:36
● 2026-02-23 13:08:56
● 2026-03-10 15:18:32

●NSgwen.ns.cloudflare.com2026-02-23 → 2026-03-10 · 3 obs

○ 2017-01-28 02:30:36
● 2026-02-23 13:08:56
● 2026-03-10 15:18:32

○NSns1.p26.dynect.net2015-07-14 → 2017-01-28 · 4 obs

● 2015-07-14 09:00:36
● 2017-01-28 02:30:36
○ 2026-02-23 13:08:56
○ 2026-03-10 15:18:32

○NSns2.p26.dynect.net2015-07-14 → 2017-01-28 · 4 obs

● 2015-07-14 09:00:36
● 2017-01-28 02:30:36
○ 2026-02-23 13:08:56
○ 2026-03-10 15:18:32

○NSns3.p26.dynect.net2015-07-14 → 2017-01-28 · 4 obs

● 2015-07-14 09:00:36
● 2017-01-28 02:30:36
○ 2026-02-23 13:08:56
○ 2026-03-10 15:18:32

○NSns4.p26.dynect.net2015-07-14 → 2017-01-28 · 4 obs

● 2015-07-14 09:00:36
● 2017-01-28 02:30:36
○ 2026-02-23 13:08:56
○ 2026-03-10 15:18:32

○MXcnettraining-com01b.mail.protection.outlook.com2015-07-14 → 2015-07-14 · 3 obs

● 2015-07-14 09:00:36
○ 2015-11-14 23:03:16
○ 2026-03-10 15:18:32

○MXmx1.avgcloud.net2015-11-14 → 2017-01-28 · 5 obs

○ 2015-07-14 09:00:36
● 2015-11-14 23:03:16
● 2017-01-28 02:30:36
○ 2026-02-23 13:08:56
○ 2026-03-10 15:18:32

○MXmx2.avgcloud.net2015-11-14 → 2017-01-28 · 5 obs

○ 2015-07-14 09:00:36
● 2015-11-14 23:03:16
● 2017-01-28 02:30:36
○ 2026-02-23 13:08:56
○ 2026-03-10 15:18:32

●MXus-smtp-inbound-1.mimecast.com2026-02-23 → 2026-03-10 · 3 obs

○ 2017-01-28 02:30:36
● 2026-02-23 13:08:56
● 2026-03-10 15:18:32

●MXus-smtp-inbound-2.mimecast.com2026-02-23 → 2026-03-10 · 3 obs

○ 2017-01-28 02:30:36
● 2026-02-23 13:08:56
● 2026-03-10 15:18:32

○A185.24.99.982017-01-28 → 2017-01-28 · 4 obs

○ 2016-06-18 18:30:42
● 2017-01-28 02:30:36
○ 2026-02-23 13:08:56
○ 2026-03-10 15:18:32

○A185.52.27.1392015-07-14 → 2016-06-18 · 4 obs

● 2015-07-14 09:00:36
● 2016-06-18 18:30:42
○ 2017-01-28 02:30:36
○ 2026-03-10 15:18:32

●A54.237.5.772026-02-23 → 2026-03-10 · 3 obs

○ 2017-01-28 02:30:36
● 2026-02-23 13:08:56
● 2026-03-10 15:18:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cnet-training.com	darwin.ns.cloudflare.com, gwen.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.193.151

NS records: darwin.ns.cloudflare.com, gwen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cnet-training.com (unsigned zone)

⏱️ Timing

Total: 273ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`54.237.5.77`
NS	2	`darwin.ns.cloudflare.com, gwen.ns.cloudflare.com`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	12	`0ed1fe018aec09f953fac94758b1564f401a2205, 13vrv0i159jnr4gtd8vq8o7d6b...`
SOA	1	`darwin.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (darwin.ns.cloudflare.com, darwin.ns.cloudflare.com, darwin.ns.cloudflare.com...)

Analysis

Hierarchy

cnet-training.com is a parent of email.cnet-training.com and www.cnet-training.com.

IP Addresses

cnet-training.com points to a single IP address: 54.237.5.77.

Other host names, such as www.cnet-training.com and ec2-54-237-5-77.compute-1.amazonaws.com, share IP numbers with cnet-training.com.

Name Servers

Two name servers darwin.ns.cloudflare.com and gwen.ns.cloudflare.com handle the delegation for cnet-training.com.

cnet-training.com shares the same name server setup as other domains, for example shin-feng.com, dacar.ind.br, ordnance.com.au, ibaolovebags.com and teachclassical.com.

cnet-training.com at least partially shares name servers with other domains, for example first-degree-systems.co.uk, ehscareers.com, universalcarlifts.com, remote-intelligence.com and justynaprabucka.pl.

These name servers are often used together with kia.ns.cloudflare.com and arushi.ns.cloudflare.com.

Host names with six IP numbers:

darwin.ns.cloudflare.com points to 2606:4700:58::adf5:3b97, 2803:f800:50::6ca2:c197, 2a06:98c1:50::ac40:2197, 108.162.193.151, 172.64.33.151 and 173.245.59.151.

gwen.ns.cloudflare.com points to 2606:4700:50::adf5:3aa0, 2803:f800:50::6ca2:c0a0, 2a06:98c1:50::ac40:20a0, 108.162.192.160, 172.64.32.160 and 173.245.58.160.

Mail Servers

Two mail servers handle cnet-training.com: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

cnet-training.com shares the same mail server setup as other domains, including co.sanmateo.ca.us, sothebys.com, mricrop.com, serclean.com and rtk.de.