`mail.opensiem.org`

DNSSEC	⚠️ Not signed
A	136.243.18.43^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
		PTR	`www.ciphron.de`

`opensiem.org`

	DNSSEC	⚠️ Not signed
	A	136.243.18.43^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
	NS	`ns1.first-ns.de` ⭐
	NS	`robotns2.second-ns.de`
	NS	`robotns3.second-ns.com`
	MX	`mail.opensiem.org` ⭐
	SOA	`ns1.first-ns.de`dns@hetzner.com 2022-02-21 #1

MX for

opensiem.org

Same first word

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DNS History

1 record (1 active, 0 former)

●A136.243.18.432015-08-06 → 2026-04-13 · 2 obs

● 2015-08-06 11:34:34
● 2026-04-13 13:33:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	d0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org	-
opensiem.org	ns1.first-ns.de, robotns3.second-ns.com, robotns2.second-ns.de	-

✅ Authoritative Response

Server:213.239.242.238

NS records: ns1.first-ns.de, robotns3.second-ns.com, robotns2.second-ns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opensiem.org (unsigned zone)

⏱️ Timing

Total: 780ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`136.243.18.43`

Analysis

Mail Server Role

mail.opensiem.org functions as a mail server for opensiem.org.

IP Addresses

mail.opensiem.org points to IP number: 136.243.18.43.

Other host names such as ciphron.eu, mail.ciphon.de, mail.secublog.de, ciphon.de and mail.synack.de share IPs with mail.opensiem.org.

mail.opensiem.org - robtex.com