postcodechallenge.com - dns.ninja
postcodechallenge.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 213.175.214.53 | ||||||
| NS | ns-1272.awsdns-31.org ⭐ | ||||||
| A | 2600:9000:5304:f800::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1272.awsdns-31.org | ||||||
| A | 205.251.196.248🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1272.awsdns-31.org | ||||||
| NS | ns-1803.awsdns-33.co.uk | ||||||
| A | 2600:9000:5307:b00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1803.awsdns-33.co.uk | ||||||
| A | 205.251.199.11🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1803.awsdns-33.co.uk | ||||||
| NS | ns-504.awsdns-63.com | ||||||
| A | 2600:9000:5301:f800::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-504.awsdns-63.com | ||||||
| A | 205.251.193.248🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-504.awsdns-63.com | ||||||
| NS | ns-580.awsdns-08.net | ||||||
| A | 2600:9000:5302:4400::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-580.awsdns-08.net | ||||||
| A | 205.251.194.68🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-580.awsdns-08.net | ||||||
| MX | postcodechallenge.com ⭐ | ||||||
| A | 213.175.214.53 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns-1272.awsdns-31.orgawsdns-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.netnstld@verisign-grs.com serial=1789281908 | ||||||
MX for
postcodechallenge.com |
Same first word
postcodechallenge.com |
postcodechallenge.org |
Previous names
Next names
DNS History
11 records (6 active, 5 former)
○NSnl1blox001.infra.novamedia.com2015-08-05 → 2015-08-05 · 3 obs
○ 2015-11-26 16:05:20
○ 2026-09-13 06:49:38
●NSns-1272.awsdns-31.org2026-08-23 → 2026-09-13 · 3 obs
● 2026-08-23 18:01:54
● 2026-09-13 06:49:38
●NSns-1803.awsdns-33.co.uk2026-08-23 → 2026-09-13 · 3 obs
● 2026-08-23 18:01:54
● 2026-09-13 06:49:38
●NSns-504.awsdns-63.com2026-08-23 → 2026-09-13 · 3 obs
● 2026-08-23 18:01:54
● 2026-09-13 06:49:38
●NSns-580.awsdns-08.net2026-08-23 → 2026-09-13 · 3 obs
● 2026-08-23 18:01:54
● 2026-09-13 06:49:38
○NSns1.novamedia.com2015-08-05 → 2015-08-05 · 3 obs
○ 2015-11-26 16:05:20
○ 2026-09-13 06:49:38
○NSns2.novamedia.com2015-08-05 → 2015-08-05 · 3 obs
○ 2015-11-26 16:05:20
○ 2026-09-13 06:49:38
○NSns4.novamedia.com2015-08-05 → 2017-04-04 · 4 obs
● 2017-04-04 00:50:14
○ 2026-08-23 18:01:54
○ 2026-09-13 06:49:38
○NSns5.novamedia.com2015-08-05 → 2017-04-04 · 4 obs
● 2017-04-04 00:50:14
○ 2026-08-23 18:01:54
○ 2026-09-13 06:49:38
●MXpostcodechallenge.com2015-08-05 → 2026-09-13 · 2 obs
● 2026-09-13 06:49:38
●A213.175.214.532015-08-05 → 2026-09-13 · 2 obs
● 2026-09-13 06:49:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| postcodechallenge.com | ns-580.awsdns-08.net, ns-504.awsdns-63.com, ns-1803.awsdns-33.co.uk, ns-1272.awsdns-31.org | 2 records |
✅ Authoritative Response
Server:205.251.199.11
NS records: ns-580.awsdns-08.net, ns-504.awsdns-63.com, ns-1803.awsdns-33.co.uk, ns-1272.awsdns-31.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for postcodechallenge.com (unsigned zone)
⏱️ Timing
Total: 2531ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.175.214.53 |
| NS | 4 | ns-1272.awsdns-31.org, ns-1803.awsdns-33.co.uk... |
| MX | 1 | postcodechallenge.com (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns-1272.awsdns-31.org awsdns-hostmaster. |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-504.awsdns-63.com, ns-504.awsdns-63.com)
Analysis
Mail Server Role
The MX record for postcodechallenge.com points back to postcodechallenge.com — it is its own mail server.
IP Addresses
postcodechallenge.com directs to one IP number, which is 213.175.214.53.
Name Servers
The domain postcodechallenge.com is delegated to these four name servers: ns-504.awsdns-63.com, ns-580.awsdns-08.net, ns-1272.awsdns-31.org and ns-1803.awsdns-33.co.uk.
At least some of postcodechallenge.com's name servers are shared with other domains, for example opbeat.com, detweegebroeders46.nl, gkschoolsplanroom.com and two more.
These name servers tend to be used in conjunction with the name servers ns-1606.awsdns-08.co.uk.
Four hostnames, each resolving to a pair of IP addresses: ns-504.awsdns-63.com directs to 205.251.193.248 and 2600:9000:5301:f800::1; ns-580.awsdns-08.net directs to 205.251.194.68 and 2600:9000:5302:4400::1; ns-1272.awsdns-31.org directs to 205.251.196.248 and 2600:9000:5304:f800::1; ns-1803.awsdns-33.co.uk directs to 205.251.199.11 and 2600:9000:5307:b00::1.
Mail Servers
The MX record for postcodechallenge.com points to a single mail server: postcodechallenge.com.
postcodechallenge.com carries a single IP number, which is 213.175.214.53.