`codingexplained.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:d95c^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:1847^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.24.71^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.217.92^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`rachel.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rachel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rachel.ns.cloudflare.com`
		A	108.162.192.215^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	172.64.32.215^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	173.245.58.215^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
NS	`sean.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sean.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sean.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sean.ns.cloudflare.com`
		A	108.162.193.231^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sean.ns.cloudflare.com`
		A	172.64.33.231^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sean.ns.cloudflare.com`
		A	173.245.59.231^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sean.ns.cloudflare.com`
MX	`mx.simply.com` ⭐
		A	94.231.106.20^{🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S}
			PTR	`mx.simply.com`
TXT	`google-site-verification=Hi_mTA4EqrhICTitErC_TkuyvhNLsfykvZXhEJTb5Lc`
TXT	`v=spf1 include:mailgun.org ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.24.71, 172.67.217.92
		IPv6 hints	2606:4700:3030::ac43:d95c, 2606:4700:3037::6815:1847
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=73, name=cloudflare-ech.com
SOA	`rachel.ns.cloudflare.com`dns@cloudflare.com serial=2400862053

`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=1776979621

Subdomains

courses.codingexplained.com

www.codingexplained.com

Same first word

codingexplained.com

DNS History

28 records (7 active, 21 former)

○NSdns1.registrar-servers.com2015-08-08 → 2016-07-17 · 4 obs

● 2015-08-08 12:33:28
● 2016-07-17 08:05:18
○ 2017-06-02 11:30:06
○ 2026-04-23 21:51:32

○NSdns2.registrar-servers.com2015-08-08 → 2016-07-17 · 4 obs

● 2015-08-08 12:33:28
● 2016-07-17 08:05:18
○ 2017-06-02 11:30:06
○ 2026-04-23 21:51:32

○NSdns3.registrar-servers.com2015-08-08 → 2016-03-27 · 4 obs

● 2015-08-08 12:33:28
● 2016-03-27 20:34:32
○ 2016-07-17 08:05:18
○ 2026-04-23 21:51:32

○NSdns4.registrar-servers.com2015-08-08 → 2016-03-27 · 4 obs

● 2015-08-08 12:33:28
● 2016-03-27 20:34:32
○ 2016-07-17 08:05:18
○ 2026-04-23 21:51:32

○NSdns5.registrar-servers.com2015-08-08 → 2016-03-27 · 4 obs

● 2015-08-08 12:33:28
● 2016-03-27 20:34:32
○ 2016-07-17 08:05:18
○ 2026-04-23 21:51:32

●NSrachel.ns.cloudflare.com2017-06-02 → 2026-04-23 · 3 obs

○ 2016-07-17 08:05:18
● 2017-06-02 11:30:06
● 2026-04-23 21:51:32

●NSsean.ns.cloudflare.com2017-06-02 → 2026-04-23 · 3 obs

○ 2016-07-17 08:05:18
● 2017-06-02 11:30:06
● 2026-04-23 21:51:32

○MXalt1.aspmx.l.google.com2015-08-08 → 2017-06-02 · 4 obs

● 2015-08-08 12:33:28
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

○MXalt2.aspmx.l.google.com2015-08-08 → 2017-06-02 · 4 obs

● 2015-08-08 12:33:28
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

○MXalt3.aspmx.l.google.com2017-06-02 → 2017-06-02 · 4 obs

○ 2016-07-17 08:05:18
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

○MXalt4.aspmx.l.google.com2017-06-02 → 2017-06-02 · 4 obs

○ 2016-07-17 08:05:18
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

○MXaspmx.l.google.com2015-08-08 → 2017-06-02 · 4 obs

● 2015-08-08 12:33:28
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

○MXaspmx2.googlemail.com2015-08-08 → 2016-07-17 · 4 obs

● 2015-08-08 12:33:28
● 2016-07-17 08:05:18
○ 2017-06-02 11:30:06
○ 2026-04-23 21:51:32

○MXaspmx3.googlemail.com2015-08-08 → 2016-07-17 · 4 obs

● 2015-08-08 12:33:28
● 2016-07-17 08:05:18
○ 2017-06-02 11:30:06
○ 2026-04-23 21:51:32

●MXmx.simply.com2026-02-16 → 2026-04-23 · 3 obs

○ 2017-06-02 11:30:06
● 2026-02-16 01:52:18
● 2026-04-23 21:51:32

●A104.21.24.712026-02-16 → 2026-04-23 · 6 obs

○ 2017-06-02 11:30:06
● 2026-02-16 01:52:18
● 2026-03-19 01:09:22
○ 2026-03-29 00:28:34
○ 2026-04-22 06:45:56
● 2026-04-23 21:51:32

○A104.28.26.482017-06-02 → 2017-06-02 · 4 obs

○ 2016-07-17 08:05:18
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

○A104.28.27.482017-06-02 → 2017-06-02 · 4 obs

○ 2016-07-17 08:05:18
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

●A172.67.217.922026-02-16 → 2026-04-23 · 6 obs

○ 2017-06-02 11:30:06
● 2026-02-16 01:52:18
● 2026-03-19 01:09:22
○ 2026-03-29 00:28:34
○ 2026-04-22 06:45:56
● 2026-04-23 21:51:32

○A188.114.96.02026-03-29 → 2026-04-22 · 4 obs

○ 2026-03-19 01:09:22
● 2026-03-29 00:28:34
● 2026-04-22 06:45:56
○ 2026-04-23 21:51:32

○A188.114.97.02026-03-29 → 2026-04-22 · 4 obs

○ 2026-03-19 01:09:22
● 2026-03-29 00:28:34
● 2026-04-22 06:45:56
○ 2026-04-23 21:51:32

○A2400:cb00:2048:1::681c:1a302017-06-02 → 2017-06-02 · 4 obs

○ 2016-07-17 08:05:18
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

○A2400:cb00:2048:1::681c:1b302017-06-02 → 2017-06-02 · 4 obs

○ 2016-07-17 08:05:18
● 2017-06-02 11:30:06
○ 2026-02-16 01:52:18
○ 2026-04-23 21:51:32

●A2606:4700:3030::ac43:d95c2026-02-16 → 2026-04-23 · 6 obs

○ 2017-06-02 11:30:06
● 2026-02-16 01:52:18
● 2026-03-19 01:09:22
○ 2026-03-29 00:28:34
○ 2026-04-22 06:45:56
● 2026-04-23 21:51:32

●A2606:4700:3037::6815:18472026-02-16 → 2026-04-23 · 6 obs

○ 2017-06-02 11:30:06
● 2026-02-16 01:52:18
● 2026-03-19 01:09:22
○ 2026-03-29 00:28:34
○ 2026-04-22 06:45:56
● 2026-04-23 21:51:32

○A2a06:98c1:3120::2026-03-29 → 2026-04-22 · 4 obs

○ 2026-03-19 01:09:22
● 2026-03-29 00:28:34
● 2026-04-22 06:45:56
○ 2026-04-23 21:51:32

○A2a06:98c1:3121::2026-03-29 → 2026-04-22 · 4 obs

○ 2026-03-19 01:09:22
● 2026-03-29 00:28:34
● 2026-04-22 06:45:56
○ 2026-04-23 21:51:32

○A94.231.106.72015-08-08 → 2016-07-17 · 4 obs

● 2015-08-08 12:33:28
● 2016-07-17 08:05:18
○ 2017-06-02 11:30:06
○ 2026-04-23 21:51:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
codingexplained.com	sean.ns.cloudflare.com, rachel.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.215

NS records: sean.ns.cloudflare.com, rachel.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 322ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.217.92, 104.21.24.71`
AAAA	2	`2606:4700:3037::6815:1847, 2606:4700:3030::ac43:d95c`
NS	2	`rachel.ns.cloudflare.com, sean.ns.cloudflare.com`
MX	1	`mx.simply.com (pri: 1)`
TXT	2	`google-site-verification=Hi_mTA4EqrhICTi, v=spf1 include:mailgun.org ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`rachel.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

codingexplained.com is a parent of courses.codingexplained.com and www.codingexplained.com.

IP Addresses

codingexplained.com resolves to four IPs: 2606:4700:3030::ac43:d95c, 2606:4700:3037::6815:1847, 104.21.24.71 and 172.67.217.92.

Other host names such as emeely-certinergy.com, ducascopy.com, anode.faiyun.workers.dev, thegreatestestatdeveloper.com and 442788.com share IP numbers with codingexplained.com.

Name Servers

codingexplained.com is delegated to two name servers: rachel.ns.cloudflare.com and sean.ns.cloudflare.com.

codingexplained.com uses the same name server setup as other domains, including tovirelanqua.com, kalenderku.id, traykovtrans.com, gracechurchaiken.com and profilsystem.it.

At least part of the name servers for codingexplained.com are shared with other domains, for instance transferwise.co.nz, istanbulbilgilendirme.click, grupocem.com.ar, bikepeddocumentation.org and xoxoyahacispartners.click.

These name servers are commonly used alongside luciana.ns.cloudflare.com and ivan.ns.cloudflare.com.

Host names with six IP numbers:

rachel.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad7, 2803:f800:50::6ca2:c0d7, 2a06:98c1:50::ac40:20d7, 108.162.192.215, 172.64.32.215 and 173.245.58.215.

sean.ns.cloudflare.com points to: 2606:4700:58::adf5:3be7, 2803:f800:50::6ca2:c1e7, 2a06:98c1:50::ac40:21e7, 108.162.193.231, 172.64.33.231 and 173.245.59.231.

Mail Servers

The mail server for codingexplained.com is mx.simply.com.

codingexplained.com uses the same mail server setup as other domains, for instance lmbc.dk, vitapus.dk, flugtskydningscenter-karup.dk, abrask.dk and retrodata.dk.

Some mail servers are shared between codingexplained.com and other domains, for instance danmag.dk.

Host mx.simply.com points to IP 94.231.106.20.

codingexplained.com - robtex.com