practice.flatworldknowledge.com - dns.ninja

`practice.flatworldknowledge.com`

DNSSEC	⚠️ Not signed
A	3.212.18.230^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
		PTR	`ec2-3-212-18-230.compute-1.amazonaws.com`
A	35.153.229.172^{🇺🇸 Amazon35.153.0.0/16 EC2 IAD prefix}
A	52.205.212.134^{🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix}
TXT	`heritage=external-dns,external-dns/owner=Z6XILJ9MB0PSJ-production-2025,extern...`

`flatworldknowledge.com`

	DNSSEC	⚠️ Not signed
	A	2600:9000:25c8:2600:f:dc9:d440:93a1^{🇺🇸 Amazon2600:9000:25c8::/48}
	A	2600:9000:25c8:2a00:f:dc9:d440:93a1^{🇺🇸 Amazon2600:9000:25c8::/48}
	A	2600:9000:25c8:8400:f:dc9:d440:93a1^{🇺🇸 Amazon2600:9000:25c8::/48}
	A	2600:9000:25c8:9400:f:dc9:d440:93a1^{🇺🇸 Amazon2600:9000:25c8::/48}
	A	2600:9000:25c8:b800:f:dc9:d440:93a1^{🇺🇸 Amazon2600:9000:25c8::/48}
	A	2600:9000:25c8:be00:f:dc9:d440:93a1^{🇺🇸 Amazon2600:9000:25c8::/48}
	A	2600:9000:25c8:f800:f:dc9:d440:93a1^{🇺🇸 Amazon2600:9000:25c8::/48}
	A	2600:9000:25c8:fc00:f:dc9:d440:93a1^{🇺🇸 Amazon2600:9000:25c8::/48}
	A	18.238.4.12^{🇺🇸 Amazon18.238.4.0/22}
	A	18.238.4.36^{🇺🇸 Amazon18.238.4.0/22}
	A	18.238.4.99^{🇺🇸 Amazon18.238.4.0/22}
	A	18.238.4.115^{🇺🇸 Amazon18.238.4.0/22}
	NS	`ns-1941.awsdns-50.co.uk` ⭐
	NS	`ns-1224.awsdns-25.org`
	NS	`ns-459.awsdns-57.com`
	NS	`ns-843.awsdns-41.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽³⁰⁾
	MX	`aspmx2.googlemail.com`⁽⁴⁰⁾
	MX	`aspmx3.googlemail.com`⁽⁵⁰⁾
	TXT	`apple-domain-verification=ilphNDbvMQage95e`
	TXT	`facebook-domain-verification=divm5qrj3nhc59uuuf7gq5azpfyrh1`
	TXT	`google-site-verification=0JaReuBloru8ECii9h2Q1hMitMEL85E7STwa6Ccs1gc`
	TXT	`sending_domain427462=456f95dffdf4a3f848ce7b6b23946bf8da45e74062f553b459c06eff...`
	TXT	`v=spf1 include:50630992.spf01.hubspotemail.net include:sendgrid.net include:_...`
	SOA	`ns-1941.awsdns-50.co.uk`awsdns-hostmaster@amazon.com 2024-03-14 #1

WOT: SAFE (67/100)
rank #136884 globally
rank #58201 in the tld
WOT: UNKNOWN (88/100)
📈 Tranco rank: #211,129

Same first word

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DNS History

6 records (3 active, 3 former)

●A3.212.18.2302026-07-24 → 2026-07-24 · 2 obs

○ 2026-03-09 22:11:50
● 2026-07-24 12:15:06

●A35.153.229.1722026-07-24 → 2026-07-24 · 2 obs

○ 2026-03-09 22:11:50
● 2026-07-24 12:15:06

○A44.216.68.1862026-03-09 → 2026-03-09 · 2 obs

● 2026-03-09 22:11:50
○ 2026-07-24 12:15:06

○A44.223.246.2472026-03-09 → 2026-03-09 · 2 obs

● 2026-03-09 22:11:50
○ 2026-07-24 12:15:06

●A52.205.212.1342026-07-24 → 2026-07-24 · 2 obs

○ 2026-03-09 22:11:50
● 2026-07-24 12:15:06

○A52.6.177.1112026-03-09 → 2026-03-09 · 2 obs

● 2026-03-09 22:11:50
○ 2026-07-24 12:15:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
flatworldknowledge.com	ns-459.awsdns-57.com, ns-843.awsdns-41.net, ns-1224.awsdns-25.org, ns-1941.awsdns-50.co.uk	2 records

✅ Authoritative Response

Server:205.251.193.203

NS records: ns-459.awsdns-57.com, ns-843.awsdns-41.net, ns-1224.awsdns-25.org, ns-1941.awsdns-50.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flatworldknowledge.com (unsigned zone)

⏱️ Timing

Total: 1005ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`52.205.212.134, 35.153.229.172...`
TXT	1	`heritage=external-dns,external-dns/owner`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-459.awsdns-57.com, ns-459.awsdns-57.com)

Analysis

IP Addresses

practice.flatworldknowledge.com resolves to three IP addresses: 3.212.18.230, 35.153.229.172 and 52.205.212.134.

catalog.flatworldknowledge.com, ec2-35-153-229-172.compute-1.amazonaws.com, ec2-52-205-212-134.compute-1.amazonaws.com and students.flatworldknowledge.com are among the host names that share IP numbers with practice.flatworldknowledge.com.