`nullmx.berbez.com`

DNSSEC	⚠️ Not signed
A	2001:1568::14^{🇨🇿 WEB4U2001:1568::/33}
		PTR	`php7.web4u.cz`
A	81.91.86.14^{🇨🇿 WEB4U81.91.80.0/21}

`berbez.com`

	DNSSEC	⚠️ Not signed
	A	2001:1568::14^{🇨🇿 WEB4U2001:1568::/33}
	A	81.91.86.14^{🇨🇿 WEB4U81.91.80.0/21}
	NS	`ns2.web4u.cz` ⭐
	NS	`ns.web4u.cz`
	MX	`mail.tutanota.de` ⭐
	TXT	`v=spf1 include:spf.tutanota.de -all`
	TXT	`t-verify=e9aacbc37a1370dba4a106f96f8dcc52`
	SOA	`ns.web4u.cz`admin@web4u.cz 2022-11-18 #1

Previously MX for

berbez.com

Same first word

nullmx.net

nullmx.org

nullmx.com

Similar names

mlnxul.com

DNS History

3 records (2 active, 1 former)

●A2001:1568::142026-03-07 → 2026-03-28 · 3 obs

○ 2015-10-13 06:53:56
● 2026-03-07 16:43:54
● 2026-03-28 19:04:14

○A209.181.247.1052008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 01:04:14
○ 2015-10-13 06:53:56
○ 2026-03-28 19:04:14

●A81.91.86.142026-03-07 → 2026-03-28 · 3 obs

○ 2015-10-13 06:53:56
● 2026-03-07 16:43:54
● 2026-03-28 19:04:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
berbez.com	ns.web4u.cz, ns2.web4u.cz	-

✅ Authoritative Response

Server:85.207.53.12

NS records: ns.web4u.cz, ns2.web4u.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for berbez.com (unsigned zone)

⏱️ Timing

Total: 656ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.91.86.14`
AAAA	1	`2001:1568::14`

Analysis

IP Addresses

nullmx.berbez.com points to two IP numbers: 2001:1568::14 and 81.91.86.14.

Other host names, for instance avril.cz, ecocamp.cz, etovar.cz, oleje-motorove.cz and rotor.misura.at share IP numbers with nullmx.berbez.com.

nullmx.berbez.com - robtex.com