`protoncrossfit.com`

DNSSEC	🔒 Signed (DS record present)
A	2a00:4b40:aaaa:2005::5^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
A	37.9.175.163^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24}
NS	`ns1.websupport.cz` ⭐
		A	2a10:bbc0::11^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns1.websupport.eu`
		A	45.10.97.11^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns1.websupport.eu`
NS	`ns2.websupport.cz`
		A	2a02:250:3::12^{🇸🇪 ACTIVE24-AS2a02:250:3::/48}
			PTR	`ns2.websupport.eu`
		A	185.71.159.12^{🇸🇪 ACTIVE24-AS185.71.159.0/24}
			PTR	`ns2.websupport.eu`
NS	`ns3.websupport.eu`
		A	2a10:bbc0::13^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns3.websupport.eu`
		A	45.10.97.13^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns3.websupport.eu`
MX	`mx10.active24.cz` ⭐
		A	2a00:4b40:aaaa:2101:45:13:137:85^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
		A	45.13.137.85^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`mx10.active24.cz`
MX	`mx20.active24.cz`⁽¹⁰⁰⁾
		A	2a00:4b40:aaaa:2101:45:13:137:86^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
		A	45.13.137.86^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`mx20.active24.cz`
TXT	`v=spf1 a mx include:_spf.websupport.cz -all`
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1775422160

`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=1778345736

⚠️ On DNS blocklist: tif

Subdomains

www.protoncrossfit.com

Same first word

protoncrossfit.com

DNS History

7 records (7 active, 0 former)

●NSns1.websupport.cz2026-04-09 → 2026-05-09 · 2 obs

● 2026-04-09 18:27:42
● 2026-05-09 17:13:20

●NSns2.websupport.cz2026-04-09 → 2026-05-09 · 2 obs

● 2026-04-09 18:27:42
● 2026-05-09 17:13:20

●NSns3.websupport.eu2026-04-09 → 2026-05-09 · 2 obs

● 2026-04-09 18:27:42
● 2026-05-09 17:13:20

●MXmx10.active24.cz2026-04-09 → 2026-05-09 · 2 obs

● 2026-04-09 18:27:42
● 2026-05-09 17:13:20

●MXmx20.active24.cz2026-04-09 → 2026-05-09 · 2 obs

● 2026-04-09 18:27:42
● 2026-05-09 17:13:20

●A2a00:4b40:aaaa:2005::52026-04-09 → 2026-05-09 · 2 obs

● 2026-04-09 18:27:42
● 2026-05-09 17:13:20

●A37.9.175.1632026-04-09 → 2026-05-09 · 2 obs

● 2026-04-09 18:27:42
● 2026-05-09 17:13:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net...	-
protoncrossfit.com	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:185.71.159.12

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 994ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.9.175.163`
AAAA	1	`2a00:4b40:aaaa:2005::5`
NS	3	`ns1.websupport.cz, ns2.websupport.cz...`
MX	2	`mx10.active24.cz (pri: 10), mx20.active24.cz (pri: 100)`
TXT	1	`v=spf1 a mx include:_spf.websupport.cz -`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

Analysis

Hierarchy

protoncrossfit.com is the parent of www.protoncrossfit.com.

IP Addresses

protoncrossfit.com resolves to two IPs: 2a00:4b40:aaaa:2005::5 and 37.9.175.163.

other host names for instance unikozlin.cz, printpartners.cz, stranja.com, gintravel.com and podporatransformace.cz share IP numbers with protoncrossfit.com.

Name Servers

protoncrossfit.com is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

protoncrossfit.com at least partially shares name servers with other domains, for instance datakomplet.net, atlantic-palace.cz, nootebos.eu, (0x736578)-(0x706f726e)o-(0x736578).com and supershape.sk.

Host names with two IP numbers:

Host ns1.websupport.cz points to 2a10:bbc0::11 and 45.10.97.11.

Host ns2.websupport.cz points to 2a02:250:3::12 and 185.71.159.12.

Host ns3.websupport.eu points to 2a10:bbc0::13 and 45.10.97.13.

Mail Servers

protoncrossfit.com is handled by two mail servers: mx10.active24.cz and mx20.active24.cz.

protoncrossfit.com shares the same mail server setup as other domains, for instance alfafit.cz, beautycore.cz, ibross.sk, welding-store.eu and albalak.cz.

protoncrossfit.com shares at least partially some mail servers with other domains, for instance jezeksw.cz, ikos.cz and partnersoft.cz.

Host names with two IP numbers:

mx10.active24.cz points to 2a00:4b40:aaaa:2101:45:13:137:85 and 45.13.137.85

mx20.active24.cz points to 2a00:4b40:aaaa:2101:45:13:137:86 and 45.13.137.86

protoncrossfit.com - robtex.com