`geo-api.datacourse.com`

DNSSEC	⚠️ Not signed
A	35.82.140.229^{🇺🇸 Amazon35.80.0.0/12 EC2 PDX prefix}
		PTR	`ec2-35-82-140-229.us-west-2.compute.amazonaws.com`
A	54.69.250.79^{🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix}
A	54.148.114.89^{🇺🇸 Amazon54.148.0.0/15 EC2 PDX prefix}

`datacourse.com`

	DNSSEC	⚠️ Not signed
	A	3.5.81.194^{🇺🇸 Amazon3.5.81.0/24 EC2 Prefix}
	A	3.5.86.23^{🇺🇸 Amazon3.5.86.0/24 EC2 Prefix}
	A	52.92.131.11^{🇺🇸 Amazon52.92.128.0/21}
	A	52.92.154.163^{🇺🇸 Amazon52.92.152.0/21}
	A	52.92.179.91^{🇺🇸 Amazon52.92.176.0/21}
	A	52.92.212.91^{🇺🇸 Amazon52.92.208.0/21}
	A	52.92.237.227^{🇺🇸 Amazon52.92.232.0/21}
	A	52.92.238.251^{🇺🇸 Amazon52.92.232.0/21}
	NS	`ns-491.awsdns-61.com` ⭐
	NS	`ns-1040.awsdns-02.org`
	NS	`ns-1674.awsdns-17.co.uk`
	NS	`ns-698.awsdns-23.net`
	MX	`inbound-smtp.us-west-2.amazonaws.com` ⭐
	TXT	`amazonses:3RorO7xWn5bLI8qJl5+1D/k71oIj3XQ1o9AtLgHEZ9A=`
	SOA	`ns-491.awsdns-61.com`awsdns-hostmaster@amazon.com serial=1

DNS History

9 records (3 active, 6 former)

○A34.223.151.2552026-04-06 → 2026-04-24 · 2 obs

○ 2026-04-06 19:39:26
○ 2026-04-24 06:05:20

○A35.162.218.1382026-04-06 → 2026-04-24 · 2 obs

○ 2026-04-06 19:39:26
○ 2026-04-24 06:05:20

●A35.82.140.2292026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-06 19:39:26
● 2026-04-24 06:05:20

○A35.83.233.1242026-04-06 → 2026-04-06 · 2 obs

● 2026-04-06 19:39:26
○ 2026-04-24 06:05:20

○A44.224.226.792026-04-06 → 2026-04-24 · 2 obs

○ 2026-04-06 19:39:26
○ 2026-04-24 06:05:20

○A44.231.141.362026-04-06 → 2026-04-06 · 2 obs

● 2026-04-06 19:39:26
○ 2026-04-24 06:05:20

●A54.148.114.892026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-06 19:39:26
● 2026-04-24 06:05:20

○A54.148.169.2142026-04-06 → 2026-04-06 · 2 obs

● 2026-04-06 19:39:26
○ 2026-04-24 06:05:20

●A54.69.250.792026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-06 19:39:26
● 2026-04-24 06:05:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, l.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net...	-
datacourse.com	ns-698.awsdns-23.net, ns-491.awsdns-61.com, ns-1040.awsdns-02.org, ns-1674.awsdns-17.co.uk	2 records

✅ Authoritative Response

Server:205.251.194.186

NS records: ns-698.awsdns-23.net, ns-491.awsdns-61.com, ns-1040.awsdns-02.org, ns-1674.awsdns-17.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for datacourse.com (unsigned zone)

⏱️ Timing

Total: 330ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`35.165.191.105, 16.145.251.206...`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-491.awsdns-61.com, ns-491.awsdns-61.com)

Analysis

IP Addresses

Three IP numbers for geo-api.datacourse.com are 35.82.140.229, 54.69.250.79 and 54.148.114.89.

Other host names, for instance ec2-35-82-140-229.us-west-2.compute.amazonaws.com, sim.grafana.prod.ring.com and ec2-54-69-250-79.us-west-2.compute.amazonaws.com share IP numbers with geo-api.datacourse.com.

geo-api.datacourse.com - robtex.com