mail.codecrafters.com - dns.ninja

`mail.codecrafters.com`

DNSSEC	⚠️ Not signed
A	20.16.179.155^{🇳🇱 Microsoft20.0.0.0/11 MICROSOFT}
		PTR	`mail.codecrafters.com`

`codecrafters.com`

	DNSSEC	⚠️ Not signed
	A	20.16.179.155^{🇳🇱 Microsoft20.0.0.0/11 MICROSOFT}
	NS	`ns1.livedns.co.uk` ⭐
	NS	`ns2.livedns.co.uk`
	NS	`ns3.livedns.co.uk`
	MX	`mail.codecrafters.com` ⭐
	TXT	`v=spf1 mx include:spf.smtp2go.com ~all`
	TXT	`google-site-verification=gh_onGgKOkdiAsQSMoWE1r9hgMmkQo6oSb06SBVnESw`
	SOA	`ns1.livedns.co.uk`admin@codecrafters.com serial=1562282560

PTR for

155.179.16.20.in-addr.arpa

MX for

codecrafters.co.uk

codecrafters.com

abilityftpserver.com

code-crafters.com

Same first word

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DNS History

5 records (1 active, 4 former)

○A191.237.67.1802015-08-08 → 2016-08-28 · 4 obs

● 2015-08-08 18:05:52
● 2016-08-28 05:29:18
○ 2016-12-26 09:50:18
○ 2026-06-29 02:57:20

●A20.16.179.1552026-06-28 → 2026-06-29 · 3 obs

○ 2026-05-12 08:41:30
● 2026-06-28 21:28:54
● 2026-06-29 02:57:20

○A4.156.152.1582026-05-12 → 2026-05-12 · 4 obs

○ 2026-03-25 03:34:42
● 2026-05-12 08:41:30
○ 2026-06-28 21:28:54
○ 2026-06-29 02:57:20

○A40.112.61.2162016-12-26 → 2016-12-26 · 4 obs

○ 2016-08-28 05:29:18
● 2016-12-26 09:50:18
○ 2026-02-24 01:10:40
○ 2026-06-29 02:57:20

○A40.121.67.162026-02-24 → 2026-03-25 · 5 obs

○ 2016-12-26 09:50:18
● 2026-02-24 01:10:40
● 2026-03-25 03:34:42
○ 2026-05-12 08:41:30
○ 2026-06-29 02:57:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
codecrafters.com	ns1.livedns.co.uk, ns2.livedns.co.uk, ns3.livedns.co.uk	-

✅ Authoritative Response

Server:185.132.35.244

NS records: ns1.livedns.co.uk, ns2.livedns.co.uk, ns3.livedns.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codecrafters.com (unsigned zone)

⏱️ Timing

Total: 1022ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`20.16.179.155`

Analysis

Mail Server Role

codecrafters.co.uk, codecrafters.com, abilityftpserver.com and code-crafters.com all use mail.codecrafters.com as their mail server.

IP Addresses

mail.codecrafters.com resolves to just one IP address, 20.16.179.155.

Other host names, among them abilityftpserver.com and code-crafters.com, have IP numbers in common with mail.codecrafters.com.