mail.rithub.org - dns.ninja

`mail.rithub.org`

DNSSEC	⚠️ Not signed
A	144.76.251.18^{🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1}
		PTR	`server2.ledgercover.com`

`rithub.org`

	DNSSEC	⚠️ Not signed
	A	144.76.251.18^{🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1}
	NS	`ns1.rithub.org` ⭐
	NS	`ns2.rithub.org`
	MX	`mail.rithub.org` ⭐
	TXT	`openai-domain-verification=dv-xOB6LmoKp4RxjsxEmpTvvmUc`
	TXT	`v=spf1 a mx ip4:144.76.251.18 ~all`
	SOA	`ns1.rithub.org`hostmaster@rithub.org 2026-06-11 #3

MX for

rithub.org

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DNS History

1 record (1 active, 0 former)

●A144.76.251.182026-02-17 → 2026-07-10 · 2 obs

● 2026-02-17 04:04:52
● 2026-07-10 01:52:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
rithub.org	ns2.rithub.org, ns1.rithub.org	2 records

✅ Authoritative Response

Server:144.76.251.18

NS records: ns2.rithub.org, ns1.rithub.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rithub.org (unsigned zone)

⏱️ Timing

Total: 711ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`144.76.251.18`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.rithub.org, ns2.rithub.org)

Analysis

Mail Server Role

Mail for rithub.org is routed through the mail server mail.rithub.org.

IP Addresses

mail.rithub.org has exactly one IP address — 144.76.251.18.

Other hosts including ns1.rithub.org, rithub.org and ns2.rithub.org share IP addresses with mail.rithub.org.