`vyrobavlajek.com`

DNSSEC	⚠️ Not signed
A	81.91.84.215^{🇨🇿 WEB4U81.91.80.0/21}
		PTR	`m108-2.server4u.cz`
NS	`ns2.web4u.cz` ⭐
		A	2a02:a40:100:28ff::12^{🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s.}
			PTR	`ns2.web4u.cz`
		A	85.207.53.12^{🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block}
			PTR	`ns2.web4u.cz`
NS	`ns.web4u.cz`
		A	2001:1568:fd::241^{🇨🇿 WEB4U2001:1568::/33}
			PTR	`ns.web4u.cz`
		A	185.14.224.241^{🇨🇿 WEB4U185.14.224.0/23}
			PTR	`ns.web4u.cz`
MX	`server.directmedia.cz` ⭐
		A	81.19.11.72^{🇨🇿 FASTER-AS81.19.0.0/20 FASTER CZ spol. s r.o.}
			PTR	`server.directmedia.cz`
TXT	`v=spf1 a mx ip4:81.91.84.217 ip4:81.91.84.218 include:spf.smartemailing.cz -all`
SOA	`ns.web4u.cz`admin@web4u.cz 2025-06-27 #0

`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=1776168862

Same first word

vyrobavlajek.com

DNS History

6 records (4 active, 2 former)

●NSns.web4u.cz2015-08-15 → 2026-04-14 · 2 obs

● 2015-08-15 12:31:40
● 2026-04-14 12:40:00

●NSns2.web4u.cz2015-08-15 → 2026-04-14 · 2 obs

● 2015-08-15 12:31:40
● 2026-04-14 12:40:00

○MXmail.vyrobavlajek.com2015-08-15 → 2019-03-17 · 4 obs

● 2015-08-15 12:31:40
● 2019-03-17 01:27:56
○ 2026-03-20 01:56:58
○ 2026-04-14 12:40:00

●MXserver.directmedia.cz2026-03-20 → 2026-04-14 · 3 obs

○ 2019-03-17 01:27:56
● 2026-03-20 01:56:58
● 2026-04-14 12:40:00

○A81.91.84.2122015-08-15 → 2019-03-17 · 4 obs

● 2015-08-15 12:31:40
● 2019-03-17 01:27:56
○ 2026-03-20 01:56:58
○ 2026-04-14 12:40:00

●A81.91.84.2152026-03-20 → 2026-04-14 · 3 obs

○ 2019-03-17 01:27:56
● 2026-03-20 01:56:58
● 2026-04-14 12:40:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net...	-
vyrobavlajek.com	ns.web4u.cz, ns2.web4u.cz	-

✅ Authoritative Response

Server:185.14.224.241

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vyrobavlajek.com (unsigned zone)

⏱️ Timing

Total: 866ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.91.84.215`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
MX	1	`server.directmedia.cz (pri: 10)`
TXT	1	`v=spf1 a mx ip4:81.91.84.217 ip4:81.91.8`
SOA	1	`ns.web4u.cz admin.web4u.cz`

Analysis

IP Addresses

vyrobavlajek.com points to a single IP number: 81.91.84.215.

Other host names, for instance aqua-styl.cz, kerberos.farmak.cz, drevostavby-ostrava.cz, prowatt.cz and liborvojkuvka.cz share IP numbers with vyrobavlajek.com.

Name Servers

Delegation for vyrobavlajek.com rests with two name servers, ns2.web4u.cz and ns.web4u.cz.

vyrobavlajek.com shares the same name server setup as other domains, including pikron.com, echomutov.cz, muzikantskaporadna.cz, uka.cz and proteinaco.cz.

vyrobavlajek.com shares name servers with other domains at least partially, for example spravadomen.org.

Host names with two IP numbers: ns2.web4u.cz points to 2a02:a40:100:28ff::12 and 85.207.53.12; ns.web4u.cz points to 2001:1568:fd::241 and 185.14.224.241.

Mail Servers

vyrobavlajek.com is handled by a single mail server, server.directmedia.cz.

vyrobavlajek.com uses the same mail server setup as other domains, for instance directfly.cz and directmedia.cz.

server.directmedia.cz points to a single IP: 81.19.11.72.

vyrobavlajek.com - robtex.com