`crossfitbrno.com`

DNSSEC	⚠️ Not signed
A	185.66.36.79^{🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805}
		PTR	`wh47.farma.gigaserver.cz`
NS	`1.ns.gigaserver.cz` ⭐
		A	2a03:1e20:0:5::92^{🇨🇿 GIGASERVER2a03:1e20::/32 CZ-SEONET-20140804}
			PTR	`1.ns.gigaserver.cz`
		A	185.66.36.92^{🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805}
			PTR	`1.ns.gigaserver.cz`
NS	`2.ns.gigaserver.cz`
		A	2a03:1e20:0:5::93^{🇨🇿 GIGASERVER2a03:1e20::/32 CZ-SEONET-20140804}
			PTR	`2.ns.gigaserver.cz`
		A	185.66.36.93^{🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805}
			PTR	`2.ns.gigaserver.cz`
NS	`3.ns.gigaserver.cz`
		A	2a03:1e20:0:5::250^{🇨🇿 GIGASERVER2a03:1e20::/32 CZ-SEONET-20140804}
			PTR	`3.ns.gigaserver.cz`
		A	185.66.36.250^{🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805}
			PTR	`3.ns.gigaserver.cz`
NS	`4.ns.gigaserver.cz`
		A	40.67.208.152^{🇳🇱 Microsoft40.67.0.0/16}
MX	`mail.gigaserver.cz` ⭐
		A	185.66.36.222^{🇨🇿 GIGASERVER185.66.36.0/22 CZ-SEONET-20140805}
			PTR	`mail.gigaserver.cz`
TXT	`v=spf1 mx a include:smtp-gw.gigaserver.cz ~all`
SOA	`1.ns.gigaserver.cz`dns@gigaserver.cz serial=1712923741

`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=1775376102

Subdomains

mail.crossfitbrno.com

Same first word

crossfitbrno.com

DNS History

8 records (6 active, 2 former)

●NS1.ns.gigaserver.cz2015-08-10 → 2026-04-05 · 2 obs

● 2015-08-10 02:44:50
● 2026-04-05 08:20:26

●NS2.ns.gigaserver.cz2015-08-10 → 2026-04-05 · 2 obs

● 2015-08-10 02:44:50
● 2026-04-05 08:20:26

●NS3.ns.gigaserver.cz2015-08-10 → 2026-04-05 · 2 obs

● 2015-08-10 02:44:50
● 2026-04-05 08:20:26

●NS4.ns.gigaserver.cz2015-08-10 → 2026-04-05 · 2 obs

● 2015-08-10 02:44:50
● 2026-04-05 08:20:26

○MXmail.crossfitbrno.com2015-08-10 → 2017-03-29 · 4 obs

● 2015-08-10 02:44:50
● 2017-03-29 20:50:58
○ 2026-04-03 15:51:46
○ 2026-04-05 08:20:26

●MXmail.gigaserver.cz2026-04-03 → 2026-04-05 · 3 obs

○ 2017-03-29 20:50:58
● 2026-04-03 15:51:46
● 2026-04-05 08:20:26

●A185.66.36.792026-04-03 → 2026-04-05 · 3 obs

○ 2017-03-29 20:50:58
● 2026-04-03 15:51:46
● 2026-04-05 08:20:26

○A85.118.128.122015-08-10 → 2017-03-29 · 4 obs

● 2015-08-10 02:44:50
● 2017-03-29 20:50:58
○ 2026-04-03 15:51:46
○ 2026-04-05 08:20:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
crossfitbrno.com	1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz, 4.ns.gigaserver.cz	-

✅ Authoritative Response

Server:185.66.36.92

NS records: 1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz, 4.ns.gigaserver.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for crossfitbrno.com (unsigned zone)

⏱️ Timing

Total: 845ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.66.36.79`
NS	4	`1.ns.gigaserver.cz, 2.ns.gigaserver.cz...`
MX	1	`mail.gigaserver.cz (pri: 50)`
TXT	1	`v=spf1 mx a include:smtp-gw.gigaserver.c`
SOA	1	`1.ns.gigaserver.cz dns.gigaserver.cz`

Analysis

Hierarchy

crossfitbrno.com is the parent of mail.crossfitbrno.com.

IP Addresses

crossfitbrno.com points to a single IP number: 185.66.36.79.

other host names for instance gae.cz, mercadolibre.pt, adventurecamp.cz, calculat.org and dreamland.cz share IP numbers with crossfitbrno.com.

Name Servers

crossfitbrno.com is delegated to four name servers: 1.ns.gigaserver.cz, 2.ns.gigaserver.cz, 3.ns.gigaserver.cz and 4.ns.gigaserver.cz.

crossfitbrno.com at least partially shares name servers with other domains, for instance predskolka-kuliskov.cz, bestak.cz, dmsalfa.cz, soaplzen.cz and archiv3d.com.

Two IPs for hosts:

1.ns.gigaserver.cz points to: 2a03:1e20:0:5::92 and 185.66.36.92

2.ns.gigaserver.cz points to: 2a03:1e20:0:5::93 and 185.66.36.93

3.ns.gigaserver.cz points to: 2a03:1e20:0:5::250 and 185.66.36.250

One IP for a host:

4.ns.gigaserver.cz points to: 40.67.208.152

Mail Servers

crossfitbrno.com is handled by a single mail server, mail.gigaserver.cz.

crossfitbrno.com shares the same mail server setup as other domains, for instance medy.cz, h2s.cz, gskill.cz, bboy.cz and danieltrojan.eu.

Host name mail.gigaserver.cz points to IP address 185.66.36.222.

crossfitbrno.com - robtex.com