`kolarsko.com`

DNSSEC	⚠️ Not signed
A	91.237.52.213^{🇵🇱 BIZNESHOST-AS91.237.52.0/24}
		PTR	`s142.cyber-folks.pl`
NS	`dns2.linuxpl.com` ⭐ ⚠️ Not in parent delegation
		A	94.152.255.111^{🇵🇱 OXYLION-AS94.152.255.0/24}
			PTR	`ns2.cyberfolks.pl`
NS	`dns1.linuxpl.com` ⚠️ Not in parent delegation
		A	94.152.254.111^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns1.cyberfolks.pl`
NS	`dns8.linuxpl.com` ⚠️ Not in zone NS records
		A	94.152.255.111^{🇵🇱 OXYLION-AS94.152.255.0/24}
			PTR	`ns2.cyberfolks.pl`
NS	`ns8.linuxpl.com` ⚠️ Not in zone NS records
		A	94.152.254.111^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns1.cyberfolks.pl`
MX	`mail.kolarsko.com` ⭐
		A	91.237.52.213^{🇵🇱 BIZNESHOST-AS91.237.52.0/24}
			PTR	`s142.cyber-folks.pl`
TXT	`v=spf1 a mx include:spf.linuxpl.com ip4:91.237.52.213 ~all`
SOA	`dns2.linuxpl.com`hostmaster@kolarsko.com 2025-09-23 #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=1774754032

Subdomains

mail.kolarsko.com

Same first word

kolarsko.com

Similar names

skolarko.com

DNS History

7 records (6 active, 1 former)

●NSdns1.linuxpl.com2026-02-23 → 2026-03-29 · 3 obs

○ 2015-08-02 18:44:04
● 2026-02-23 22:16:42
● 2026-03-29 03:36:22

●NSdns2.linuxpl.com2026-02-23 → 2026-03-29 · 3 obs

○ 2015-08-02 18:44:04
● 2026-02-23 22:16:42
● 2026-03-29 03:36:22

●NSdns8.linuxpl.com2015-08-02 → 2026-03-29 · 2 obs

● 2015-08-02 18:44:04
● 2026-03-29 03:36:22

●NSns8.linuxpl.com2015-08-02 → 2026-03-29 · 2 obs

● 2015-08-02 18:44:04
● 2026-03-29 03:36:22

●MXmail.kolarsko.com2015-08-02 → 2026-03-29 · 2 obs

● 2015-08-02 18:44:04
● 2026-03-29 03:36:22

○A88.198.20.572015-08-02 → 2019-03-22 · 4 obs

● 2015-08-02 18:44:04
● 2019-03-22 20:40:16
○ 2026-02-23 22:16:42
○ 2026-03-29 03:36:22

●A91.237.52.2132026-02-23 → 2026-03-29 · 3 obs

○ 2019-03-22 20:40:16
● 2026-02-23 22:16:42
● 2026-03-29 03:36:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net...	-
kolarsko.com	ns8.linuxpl.com, dns8.linuxpl.com	2 records

✅ Authoritative Response

Server:94.152.255.111

NS records: ns8.linuxpl.com, dns8.linuxpl.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kolarsko.com (unsigned zone)

⏱️ Timing

Total: 262ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.237.52.213`
NS	2	`dns2.linuxpl.com, dns1.linuxpl.com`
MX	1	`mail.kolarsko.com (pri: 10)`
TXT	1	`v=spf1 a mx include:spf.linuxpl.com ip4:`
SOA	1	`dns2.linuxpl.com hostmaster.kolarsko.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns8.linuxpl.com, dns8.linuxpl.com)

Analysis

Hierarchy

kolarsko.com is the parent of mail.kolarsko.com.

IP Addresses

kolarsko.com resolves to a single IP address: 91.237.52.213.

Other host names including mail.rentsystem.pl, mail.heroinmodels.pl, proneteus.pl, mail.avenolife.pl and mail.inwestujdobrze.pl share IP numbers with kolarsko.com.

Name Servers

kolarsko.com is delegated to four name servers: dns1.linuxpl.com, dns2.linuxpl.com, dns8.linuxpl.com and ns8.linuxpl.com.

kolarsko.com at least partially shares name servers with other domains, including alminas.pl, magazinestudio.pl, yb-audio.pl, emcare.pl and sochacki.eu.