`mail.directbookpro.com`

DNSSEC	⚠️ Not signed
A	136.243.133.73^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
		PTR	`static.73.133.243.136.clients.your-server.de`

`directbookpro.com`

	DNSSEC	⚠️ Not signed
	A	136.243.133.73^{🇩🇪 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.directbookpro.com` ⭐
	TXT	`google-site-verification=1YqGUhPDZS3ht72N1HKdf0LvIPjJTNo5D1yukwYJ0_U`
	SOA	`ns1.first-ns.de`dns@hetzner.com 2025-10-13 #0

MX for

directbookpro.com

Same first word

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DNS History

2 records (1 active, 1 former)

●A136.243.133.732026-04-14 → 2026-04-24 · 3 obs

○ 2017-04-20 20:22:46
● 2026-04-14 19:49:42
● 2026-04-24 08:39:22

○A87.106.5.982017-04-20 → 2017-04-20 · 3 obs

● 2017-04-20 20:22:46
○ 2026-04-14 19:49:42
○ 2026-04-24 08:39:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
directbookpro.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 directbookpro.com (unsigned zone)

⏱️ Timing

Total: 1119ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`136.243.133.73`

📌 Glue Records Collected

Total: 2

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

Analysis

Mail Server Role

mail.directbookpro.com functions as a mail server for directbookpro.com.

IP Addresses

mail.directbookpro.com resolves to one IP number: 136.243.133.73.

other host names including hydrobar.eu, directbookpro.de, mail.directbookpro.de, franchiseforyou.net and butz-forwarding.de share IP numbers with mail.directbookpro.com.

mail.directbookpro.com - robtex.com