`letterboxone.com`

DNSSEC	⚠️ Not signed
A	85.214.151.229^{🇩🇪 STRATO85.214.0.0/15 AG}
		PTR	`h3071675.stratoserver.net`
NS	`ns3.stratoserver.net` ⭐
		A	2607:f1c0:fe:53:185:132:34:159^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns3.stratoserver.net`
		A	185.132.34.159^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns3.stratoserver.net`
NS	`ns4.stratoserver.net`
		A	2001:8d8:fe:53:5747:2a74:d:32^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns4.stratoserver.net`
		A	217.160.80.159^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns4.stratoserver.net`
MX	`smtp.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::2097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
		A	81.169.145.98^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtp.rzone.de`
SOA	`ns3.stratoserver.net`hostmaster@strato-rz.de 2025-07-11 #17

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776084372

Subdomains

mx0.letterboxone.com

Same first word

letterboxone.com

DNS History

9 records (4 active, 5 former)

○NSns1.hans.hosteurope.de2015-08-09 → 2018-12-18 · 4 obs

● 2015-08-09 01:41:42
● 2018-12-18 03:28:08
○ 2026-03-21 22:19:32
○ 2026-04-13 13:06:42

○NSns2.hans.hosteurope.de2015-08-09 → 2018-12-18 · 4 obs

● 2015-08-09 01:41:42
● 2018-12-18 03:28:08
○ 2026-03-21 22:19:32
○ 2026-04-13 13:06:42

●NSns3.stratoserver.net2026-03-21 → 2026-04-13 · 3 obs

○ 2018-12-18 03:28:08
● 2026-03-21 22:19:32
● 2026-04-13 13:06:42

●NSns4.stratoserver.net2026-03-21 → 2026-04-13 · 3 obs

○ 2018-12-18 03:28:08
● 2026-03-21 22:19:32
● 2026-04-13 13:06:42

○MXmx0.letterboxone.com2015-08-09 → 2018-12-18 · 4 obs

● 2015-08-09 01:41:42
● 2018-12-18 03:28:08
○ 2026-03-21 22:19:32
○ 2026-04-13 13:06:42

●MXsmtp.rzone.de2026-03-21 → 2026-04-13 · 3 obs

○ 2018-12-18 03:28:08
● 2026-03-21 22:19:32
● 2026-04-13 13:06:42

○A178.77.108.502015-08-09 → 2018-12-18 · 4 obs

● 2015-08-09 01:41:42
● 2018-12-18 03:28:08
○ 2026-03-21 22:19:32
○ 2026-04-13 13:06:42

○A2a01:488:42:1000:b24d:6c32:3e:64882015-08-09 → 2018-12-18 · 4 obs

● 2015-08-09 01:41:42
● 2018-12-18 03:28:08
○ 2026-03-21 22:19:32
○ 2026-04-13 13:06:42

●A85.214.151.2292026-03-21 → 2026-04-13 · 3 obs

○ 2018-12-18 03:28:08
● 2026-03-21 22:19:32
● 2026-04-13 13:06:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net...	-
letterboxone.com	ns3.stratoserver.net, ns4.stratoserver.net	-

✅ Authoritative Response

Server:217.160.80.159

NS records: ns3.stratoserver.net, ns4.stratoserver.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for letterboxone.com (unsigned zone)

⏱️ Timing

Total: 416ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.214.151.229`
NS	2	`ns3.stratoserver.net, ns4.stratoserver.net`
MX	1	`smtp.rzone.de (pri: 5)`
SOA	1	`ns3.stratoserver.net hostmaster.strato-r`

Analysis

Hierarchy

letterboxone.com is the parent of mx0.letterboxone.com.

IP Addresses

letterboxone.com resolves to a single IP: 85.214.151.229.

Other host names, for instance, h3071675.stratoserver.net and holding.de share IP numbers with letterboxone.com.

Name Servers

letterboxone.com has two name servers: ns3.stratoserver.net and ns4.stratoserver.net.

letterboxone.com shares the same name server setup as other domains, for example steinbeck.de, owl-go.de, vb-immobilienmarkt.de, avarc.org and berlin-kultur.eu.

Host names with two IP numbers:

ns3.stratoserver.net points to: 2607:f1c0:fe:53:185:132:34:159 and 185.132.34.159; ns4.stratoserver.net points to: 2001:8d8:fe:53:5747:2a74:d:32 and 217.160.80.159.

Mail Servers

letterboxone.com is handled by a single mail server, smtp.rzone.de.

letterboxone.com shares the mail server setup with other domains, for example boedecker-colleagues.de, novaroma.com, classicunimog.com, r-iva.com and skw.nl.

smtp.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::2097 and 81.169.145.98.

letterboxone.com - robtex.com