datcourse.com - dns.ninja

`datcourse.com`

DNSSEC	⚠️ Not signed
A	18.233.126.131^{🇺🇸 Amazon18.232.0.0/14 EC2 IAD prefix}
		PTR	`ec2-18-233-126-131.compute-1.amazonaws.com`
A	44.214.216.88^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
NS	`ns-1783.awsdns-30.co.uk` ⭐
		A	2600:9000:5306:f700::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1783.awsdns-30.co.uk`
		A	205.251.198.247^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1783.awsdns-30.co.uk`
NS	`ns-1433.awsdns-51.org`
		A	2600:9000:5305:9900::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1433.awsdns-51.org`
		A	205.251.197.153^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1433.awsdns-51.org`
NS	`ns-266.awsdns-33.com`
		A	2600:9000:5301:a00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-266.awsdns-33.com`
		A	205.251.193.10^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-266.awsdns-33.com`
NS	`ns-671.awsdns-19.net`
		A	2600:9000:5302:9f00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-671.awsdns-19.net`
		A	205.251.194.159^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-671.awsdns-19.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`facebook-domain-verification=puwwmovheovs4wbc5fjrx7zruwnu1w`
SOA	`ns-1783.awsdns-30.co.uk`awsdns-hostmaster@amazon.com serial=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=1783466376

Same first word

datcourse.com

Similar names

DNS History

24 records (11 active, 13 former)

●NSns-1433.awsdns-51.org2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

●NSns-1783.awsdns-30.co.uk2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

●NSns-266.awsdns-33.com2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

●NSns-671.awsdns-19.net2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

○NSns35.domaincontrol.com2015-07-23 → 2017-03-15 · 4 obs

● 2015-07-23 12:25:00
● 2017-03-15 20:51:04
○ 2026-02-22 00:22:32
○ 2026-07-07 23:36:30

○NSns36.domaincontrol.com2015-07-23 → 2017-03-15 · 4 obs

● 2015-07-23 12:25:00
● 2017-03-15 20:51:04
○ 2026-02-22 00:22:32
○ 2026-07-07 23:36:30

●MXalt1.aspmx.l.google.com2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

●MXalt2.aspmx.l.google.com2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

●MXalt3.aspmx.l.google.com2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

●MXalt4.aspmx.l.google.com2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

●MXaspmx.l.google.com2026-02-22 → 2026-07-07 · 3 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
● 2026-07-07 23:36:30

○MXmailstore1.secureserver.net2015-07-23 → 2017-03-15 · 4 obs

● 2015-07-23 12:25:00
● 2017-03-15 20:51:04
○ 2026-02-22 00:22:32
○ 2026-07-07 23:36:30

○MXsmtp.secureserver.net2015-07-23 → 2017-03-15 · 4 obs

● 2015-07-23 12:25:00
● 2017-03-15 20:51:04
○ 2026-02-22 00:22:32
○ 2026-07-07 23:36:30

●A18.233.126.1312026-07-07 → 2026-07-07 · 3 obs

○ 2026-05-28 11:29:24
● 2026-07-07 23:36:28
● 2026-07-07 23:36:30

○A184.168.221.432015-07-23 → 2017-03-15 · 4 obs

● 2015-07-23 12:25:00
● 2017-03-15 20:51:04
○ 2026-02-22 00:22:32
○ 2026-07-07 23:36:30

○A3.220.133.72026-02-22 → 2026-02-22 · 4 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
○ 2026-04-09 03:49:08
○ 2026-07-07 23:36:30

○A34.195.158.1952026-04-09 → 2026-04-09 · 4 obs

○ 2026-02-22 00:22:32
● 2026-04-09 03:49:08
○ 2026-05-28 11:29:24
○ 2026-07-07 23:36:30

○A35.169.52.232026-05-28 → 2026-05-28 · 4 obs

○ 2026-04-09 03:49:08
● 2026-05-28 11:29:24
○ 2026-07-07 23:36:28
○ 2026-07-07 23:36:30

●A44.214.216.882026-07-07 → 2026-07-07 · 3 obs

○ 2026-05-28 11:29:24
● 2026-07-07 23:36:28
● 2026-07-07 23:36:30

○A44.214.78.522026-02-22 → 2026-07-07 · 2 obs

○ 2026-02-22 00:22:32
○ 2026-07-07 23:36:30

○A52.20.193.1722026-02-22 → 2026-07-07 · 2 obs

○ 2026-02-22 00:22:32
○ 2026-07-07 23:36:30

○A52.87.1.1922026-05-28 → 2026-05-28 · 4 obs

○ 2026-04-09 03:49:08
● 2026-05-28 11:29:24
○ 2026-07-07 23:36:28
○ 2026-07-07 23:36:30

○A54.164.61.2302026-02-22 → 2026-02-22 · 4 obs

○ 2017-03-15 20:51:04
● 2026-02-22 00:22:32
○ 2026-04-09 03:49:08
○ 2026-07-07 23:36:30

○A98.85.136.2442026-04-09 → 2026-04-09 · 4 obs

○ 2026-02-22 00:22:32
● 2026-04-09 03:49:08
○ 2026-05-28 11:29:24
○ 2026-07-07 23:36:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
datcourse.com	ns-671.awsdns-19.net, ns-266.awsdns-33.com, ns-1783.awsdns-30.co.uk, ns-1433.awsdns-51.org	2 records

✅ Authoritative Response

Server:205.251.194.159

NS records: ns-671.awsdns-19.net, ns-266.awsdns-33.com, ns-1783.awsdns-30.co.uk, ns-1433.awsdns-51.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for datcourse.com (unsigned zone)

⏱️ Timing

Total: 423ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`44.214.216.88, 18.233.126.131`
NS	4	`ns-1433.awsdns-51.org, ns-1783.awsdns-30.co.uk...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`facebook-domain-verification=puwwmovheov`
SOA	1	`ns-1783.awsdns-30.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-266.awsdns-33.com, ns-266.awsdns-33.com)

Analysis

IP Addresses

datcourse.com points to the IP addresses 18.233.126.131 and 44.214.216.88

Host names like ec2-18-233-126-131.compute-1.amazonaws.com are further examples that share IP numbers with datcourse.com.

Name Servers

The NS records for datcourse.com point to four name servers: ns-266.awsdns-33.com, ns-671.awsdns-19.net, ns-1433.awsdns-51.org and ns-1783.awsdns-30.co.uk.

The name servers of datcourse.com overlap at least partially with those of other domains — among them educationnutrition.org, enquetesmaken.com, d2svk2k05yf87x.cloudfront.net and two more.

Each of the four hosts ns-266.awsdns-33.com, ns-671.awsdns-19.net, ns-1433.awsdns-51.org and ns-1783.awsdns-30.co.uk has two IP addresses. ns-266.awsdns-33.com points to 205.251.193.10 and 2600:9000:5301:a00::1. ns-671.awsdns-19.net points to 205.251.194.159 and 2600:9000:5302:9f00::1. ns-1433.awsdns-51.org points to 205.251.197.153 and 2600:9000:5305:9900::1. ns-1783.awsdns-30.co.uk points to 205.251.198.247 and 2600:9000:5306:f700::1.

Mail Servers

datcourse.com has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

There is at least a partial MX overlap between datcourse.com and other domains, including medilink.co.il, ns500759.ns500759.ns500758.ns500735.ns500736.ns500735.ns500698.ns500735.ns500652.ns500652.trackreceptor.com, ns500765.ns500734.ns500693.ns500699.ns500734.ns500734.ns500693.ns500588.ns500699.ns500699.ns500683.ns500683.ns500588.dtrkdll.com and two others.

alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com are mail servers that frequently appear together with these mail servers.

Host names that have two IP addresses:

aspmx.l.google.com resolves to two addresses: 142.251.163.27 and 2607:f8b0:4004:c23::1b.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.26 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1a.