`mail.igrobook.com`

DNSSEC	⚠️ Not signed
A	136.243.226.181^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
		PTR	`static.181.226.243.136.clients.your-server.de`

`igrobook.com`

	DNSSEC	⚠️ Not signed
	A	188.40.140.140^{🇩🇪 Hetzner188.40.0.0/16 HETZNER-RZ-FKS-BLK1}
	NS	`ns1.first-ns.de` ⭐
	NS	`robotns2.second-ns.de`
	NS	`robotns3.second-ns.com`
	MX	`mail.igrobook.com` ⭐
	TXT	`v=spf1 ip4:92.60.184.77 +a +mx ~all`
	SOA	`ns1.first-ns.de`postmaster@robot.first-ns.de 2015-10-30 #0

MX for

igrobook.com

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DNS History

1 record (1 active, 0 former)

●A136.243.226.1812015-08-12 → 2026-03-27 · 2 obs

● 2015-08-12 14:44:14
● 2026-03-27 13:56:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, g.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net...	-
igrobook.com	ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com	2 records

✅ Authoritative Response

Server:213.239.242.238

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for igrobook.com (unsigned zone)

⏱️ Timing

Total: 667ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`136.243.226.181`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (robotns3.second-ns.com, robotns3.second-ns.com)

Analysis

Mail Server Role

mail.igrobook.com serves as the mail server for igrobook.com.

IP Addresses

mail.igrobook.com points to a single IP: 136.243.226.181.

Other host names, such as static.181.226.243.136.clients.your-server.de, share IP numbers with mail.igrobook.com.

mail.igrobook.com - robtex.com