`mail.vecicky.cz`

CNAME	`mails.3it.cz`
DNSSEC	⚠️ Not signed
A	83.167.243.94^{🇨🇿 MASTER-AS83.167.224.0/19 MASTER-NET-5}
		PTR	`d9738-101.masterinter.net`
TXT	`v=spf1 ip4:83.167.243.94 ip6:2a01:430:18d::2 -all`

`vecicky.cz`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3030::6815:2589^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:d0c6^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.37.137^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.208.198^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jessica.ns.cloudflare.com` ⭐
NS	`osmar.ns.cloudflare.com`
MX	`mails.3it.cz` ⭐
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.37.137, 172.67.208.198
		IPv6	2606:4700:3030::6815:2589, 2606:4700:3033::ac43:d0c6
SOA	`jessica.ns.cloudflare.com`dns@cloudflare.com serial=2399391934

Previously MX for

vecicky.cz

Same first word

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DNS History

2 records (1 active, 1 former)

○A109.205.76.212015-07-16 → 2016-06-26 · 3 obs

● 2015-07-16 15:01:50
● 2016-06-26 04:59:22
○ 2026-03-23 02:34:56

●CNAMEmails.3it.cz2026-03-23 → 2026-03-23 · 1 obs

● 2026-03-23 02:34:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	8 records
vecicky.cz	osmar.ns.cloudflare.com, jessica.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.171

NS records: osmar.ns.cloudflare.com, jessica.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 740ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mails.3it.cz`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)

Analysis

IP Addresses

mail.vecicky.cz points to a single IP: 83.167.243.94.

Other host names, for example plantaznikava.cz, d9738-101.masterinter.net, mdc.3it.cz and mails.3it.cz share IP numbers with mail.vecicky.cz.

mail.vecicky.cz - robtex.com

mail.vecicky.cz

vecicky.cz