`api.postcodeapi.nu`

CNAME	`d1ncoklbpvmg1p.cloudfront.net`
DNSSEC	⚠️ Not signed
A	2600:9000:2269:1c00:0:aa5b:6f40:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:2000:0:aa5b:6f40:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:4800:0:aa5b:6f40:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:9c00:0:aa5b:6f40:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:a000:0:aa5b:6f40:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:aa00:0:aa5b:6f40:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:b800:0:aa5b:6f40:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	2600:9000:2269:ee00:0:aa5b:6f40:93a1^{🇺🇸 Amazon2600:9000:2269::/48 - CloudFront}
A	18.67.65.71^{🇺🇸 Amazon18.67.64.0/21}
A	18.67.65.101^{🇺🇸 Amazon18.67.64.0/21}
A	18.67.65.103^{🇺🇸 Amazon18.67.64.0/21}
A	18.67.65.108^{🇺🇸 Amazon18.67.64.0/21}
NS	`ns-1756.awsdns-27.co.uk` ⭐
		A	2600:9000:5306:dc00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1756.awsdns-27.co.uk`
		A	205.251.198.220^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1756.awsdns-27.co.uk`
NS	`ns-1380.awsdns-44.org`
		A	2600:9000:5305:6400::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1380.awsdns-44.org`
		A	205.251.197.100^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1380.awsdns-44.org`
NS	`ns-444.awsdns-55.com`
		A	2600:9000:5301:bc00::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-444.awsdns-55.com`
		A	205.251.193.188^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-444.awsdns-55.com`
NS	`ns-519.awsdns-00.net`
		A	2600:9000:5302:700::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-519.awsdns-00.net`
		A	205.251.194.7^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-519.awsdns-00.net`
HTTPS	HTTP/2
SOA	`ns-1756.awsdns-27.co.uk`awsdns-hostmaster@amazon.com serial=1

`postcodeapi.nu`

	DNSSEC	⚠️ Not signed
	A	3.5.64.200^{🇮🇪 Amazon3.5.64.0/24 EC2 Prefix}
	A	3.5.64.252^{🇮🇪 Amazon3.5.64.0/24 EC2 Prefix}
	A	3.5.69.41^{🇮🇪 Amazon3.5.69.0/24 EC2 Prefix}
	A	3.5.74.108^{🇺🇸 Amazon3.5.74.0/24 AWS S3}
	A	52.92.0.44^{🇮🇪 Amazon52.92.0.0/24 S3 ICN prefix}
	A	52.92.0.92^{🇮🇪 Amazon52.92.0.0/24 S3 ICN prefix}
	A	52.92.19.180^{🇺🇸 Amazon52.92.16.0/21}
	A	52.92.34.116^{🇮🇪 Amazon52.92.32.0/21}
	NS	`ns-517.awsdns-00.net` ⭐
	NS	`ns-1195.awsdns-21.org`
	NS	`ns-1968.awsdns-54.co.uk`
	NS	`ns-330.awsdns-41.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`aspmx2.googlemail.com`⁽¹⁰⁾
	MX	`aspmx3.googlemail.com`⁽¹⁰⁾
	TXT	`google-site-verification=SJux3Ka4YtKeDCjix6xvW6wRPhnK6h5v4yER0EU1TOI`
	TXT	`v=spf1 include:_spf.mlsend.com include:servers.mcsv.net include:_spf.google.c...`
	SOA	`ns-517.awsdns-00.net`awsdns-hostmaster@amazon.com serial=1

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DNS History

1 record (1 active, 0 former)

●CNAMEd1ncoklbpvmg1p.cloudfront.net2020-01-31 → 2026-07-11 · 2 obs

● 2020-01-31 11:19:26
● 2026-07-11 00:06:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nu	d.ns.nu, a.ns.nu, c.ns.nu, z.ns.nu...	-
postcodeapi.nu	ns-330.awsdns-41.com, ns-517.awsdns-00.net, ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-
postcodeapi.nu	ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net	-

✅ Authoritative Response

Server:205.251.196.171

NS records: ns-1195.awsdns-21.org, ns-1968.awsdns-54.co.uk, ns-330.awsdns-41.com, ns-517.awsdns-00.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postcodeapi.nu (unsigned zone)

⏱️ Timing

Total: 2145ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`d1ncoklbpvmg1p.cloudfront.net`

Analysis

IP Addresses

api.postcodeapi.nu points to 12 IP addresses, including 18.67.65.71, 18.67.65.101 and 18.67.65.103, plus 9 other.

d26c3wjb8xrff7.cloudfront.net, www.ensya.co.kr, opencanvaslaser.com plus two other host names have IP numbers in common with api.postcodeapi.nu.

Name Servers

Four name servers handle the delegation for api.postcodeapi.nu: ns-444.awsdns-55.com, ns-519.awsdns-00.net, ns-1380.awsdns-44.org and ns-1756.awsdns-27.co.uk.

api.postcodeapi.nu has at least partial name server overlap with other domains, such as taijiquan.pro.br, staqe.net, cpwin.win and two others.

ns-444.awsdns-55.com, ns-519.awsdns-00.net, ns-1380.awsdns-44.org and ns-1756.awsdns-27.co.uk all point to exactly two IP numbers each: ns-444.awsdns-55.com → 205.251.193.188 and 2600:9000:5301:bc00::1; ns-519.awsdns-00.net → 205.251.194.7 and 2600:9000:5302:700::1; ns-1380.awsdns-44.org → 205.251.197.100 and 2600:9000:5305:6400::1; ns-1756.awsdns-27.co.uk → 205.251.198.220 and 2600:9000:5306:dc00::1.

api.postcodeapi.nu - robtex.com