`smart-optic.pl`

DNSSEC	⚠️ Not signed
A	185.208.164.138^{🇵🇱 CF-GDA185.208.164.0/24}
		PTR	`s38.cyber-folks.pl`
NS	`ns1.cyberfolks.pl` ⭐ ⚠️ Not in parent delegation
		A	94.152.254.111^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns1.cyberfolks.pl`
NS	`dns1.linuxpl.com` ⚠️ Not in zone NS records
		A	94.152.254.111^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns1.cyberfolks.pl`
NS	`dns2.linuxpl.com` ⚠️ Not in zone NS records
		A	94.152.255.111^{🇵🇱 OXYLION-AS94.152.255.0/24}
			PTR	`ns2.cyberfolks.pl`
NS	`dns3.linuxpl.com` ⚠️ Not in zone NS records
		A	94.152.254.161^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns3.cyberfolks.pl`
NS	`ns2.cyberfolks.pl` ⚠️ Not in parent delegation
		A	94.152.255.111^{🇵🇱 OXYLION-AS94.152.255.0/24}
			PTR	`ns2.cyberfolks.pl`
NS	`ns3.cyberfolks.pl` ⚠️ Not in parent delegation
		A	94.152.254.161^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns3.cyberfolks.pl`
MX	`mail.smart-optic.pl` ⭐
		A	185.208.164.138^{🇵🇱 CF-GDA185.208.164.0/24}
			PTR	`s38.cyber-folks.pl`
TXT	`v=spf1 a mx include:_spf.cyberfolks.pl -all`
SOA	`ns1.cyberfolks.pl`hostmaster@smart-optic.pl 2023-11-15 #0

`pl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a-dns.pl` ⭐
	NS	`b-dns.pl`
	NS	`d-dns.pl`
	NS	`f-dns.pl`
	NS	`h-dns.pl`
	NS	`j-dns.pl`
	TXT	`ccTLD of Poland`
	SOA	`a-dns.pl`dnsmaster@nask.pl serial=1786257139

Subdomains

mail.smart-optic.pl

Same first word

smart-optic.de

smart-optic.pl

smart-optic.com

DNS History

14 records (8 active, 6 former)

●NSdns1.linuxpl.com2026-02-24 → 2026-08-09 · 3 obs

○ 2016-12-22 10:15:52
● 2026-02-24 07:39:30
● 2026-08-09 16:04:52

○NSdns11.linuxpl.com2015-09-02 → 2016-08-27 · 4 obs

● 2015-09-02 07:55:56
● 2016-08-27 14:21:06
○ 2016-10-19 08:03:46
○ 2026-08-09 16:04:52

●NSdns2.linuxpl.com2026-02-24 → 2026-08-09 · 3 obs

○ 2016-12-22 10:15:52
● 2026-02-24 07:39:30
● 2026-08-09 16:04:52

●NSdns3.linuxpl.com2026-02-24 → 2026-08-09 · 3 obs

○ 2016-12-22 10:15:52
● 2026-02-24 07:39:30
● 2026-08-09 16:04:52

●NSns1.cyberfolks.pl2026-02-24 → 2026-08-09 · 8 obs

○ 2016-12-22 10:15:52
● 2026-02-24 07:39:30
○ 2026-03-09 10:05:18
● 2026-03-15 12:14:02
● 2026-04-12 23:28:18
○ 2026-05-08 18:06:20
● 2026-06-27 16:39:58
● 2026-08-09 16:04:52

○NSns1.dahost.pl2016-10-19 → 2016-12-22 · 5 obs

○ 2016-08-27 14:21:06
● 2016-10-19 08:03:46
● 2016-12-22 10:15:52
○ 2026-02-24 07:39:30
○ 2026-08-09 16:04:52

○NSns11.linuxpl.com2015-09-02 → 2016-08-27 · 4 obs

● 2015-09-02 07:55:56
● 2016-08-27 14:21:06
○ 2016-10-19 08:03:46
○ 2026-08-09 16:04:52

●NSns2.cyberfolks.pl2026-02-24 → 2026-08-09 · 8 obs

○ 2016-12-22 10:15:52
● 2026-02-24 07:39:30
○ 2026-03-09 10:05:18
● 2026-03-15 12:14:02
● 2026-04-12 23:28:18
○ 2026-05-08 18:06:20
● 2026-06-27 16:39:58
● 2026-08-09 16:04:52

○NSns2.dahost.pl2016-10-19 → 2016-12-22 · 5 obs

○ 2016-08-27 14:21:06
● 2016-10-19 08:03:46
● 2016-12-22 10:15:52
○ 2026-02-24 07:39:30
○ 2026-08-09 16:04:52

●NSns3.cyberfolks.pl2026-02-24 → 2026-08-09 · 8 obs

○ 2016-12-22 10:15:52
● 2026-02-24 07:39:30
○ 2026-03-09 10:05:18
● 2026-03-15 12:14:02
● 2026-04-12 23:28:18
○ 2026-05-08 18:06:20
● 2026-06-27 16:39:58
● 2026-08-09 16:04:52

●MXmail.smart-optic.pl2015-09-02 → 2026-08-09 · 8 obs

● 2015-09-02 07:55:56
● 2026-02-24 07:39:30
○ 2026-03-09 10:05:18
● 2026-03-15 12:14:02
● 2026-04-12 23:28:18
○ 2026-05-08 18:06:20
● 2026-06-27 16:39:58
● 2026-08-09 16:04:52

○A176.9.79.792015-09-02 → 2016-08-27 · 4 obs

● 2015-09-02 07:55:56
● 2016-08-27 14:21:06
○ 2016-10-19 08:03:46
○ 2026-08-09 16:04:52

●A185.208.164.1382026-02-24 → 2026-08-09 · 8 obs

○ 2016-12-22 10:15:52
● 2026-02-24 07:39:30
○ 2026-03-09 10:05:18
● 2026-03-15 12:14:02
● 2026-04-12 23:28:18
○ 2026-05-08 18:06:20
● 2026-06-27 16:39:58
● 2026-08-09 16:04:52

○A185.49.13.2392016-10-19 → 2016-12-22 · 5 obs

○ 2016-08-27 14:21:06
● 2016-10-19 08:03:46
● 2016-12-22 10:15:52
○ 2026-02-24 07:39:30
○ 2026-08-09 16:04:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	j-dns.pl, a-dns.pl, b-dns.pl, d-dns.pl...	-
smart-optic.pl	dns3.linuxpl.com, dns2.linuxpl.com, dns1.linuxpl.com	-

✅ Authoritative Response

Server:94.152.254.111

NS records: dns3.linuxpl.com, dns2.linuxpl.com, dns1.linuxpl.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smart-optic.pl (unsigned zone)

⏱️ Timing

Total: 417ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.208.164.138`
NS	3	`ns2.cyberfolks.pl, ns3.cyberfolks.pl...`
MX	1	`mail.smart-optic.pl (pri: 10)`
TXT	1	`v=spf1 a mx include:_spf.cyberfolks.pl -`
SOA	1	`ns1.cyberfolks.pl hostmaster.smart-optic`

Analysis

Hierarchy

smart-optic.pl serves as the parent of mail.smart-optic.pl.

IP Addresses

smart-optic.pl has exactly one IP address — 185.208.164.138.

cbo.pl, flexconnect.pl, mail.marketinglink.pl plus two other host names have IP numbers in common with smart-optic.pl.

Name Servers

DNS for smart-optic.pl is handled by 6 name servers: dns1.linuxpl.com, dns2.linuxpl.com, dns3.linuxpl.com and 3 others.

smart-optic.pl has at least partial name server overlap with other domains, such as lukaszharun.com, zielonalinia.gov.pl, s-j.pl and two others.

ns1.cyberfolks.pl, ns2.cyberfolks.pl and ns3.cyberfolks.pl — plus 7 other name servers — are commonly paired with these name servers.

Host names resolving to a single IP address:

dns1.linuxpl.com directs to 94.152.254.111.

dns2.linuxpl.com directs to 94.152.255.111.

dns3.linuxpl.com directs to 94.152.254.161.

ns1.cyberfolks.pl directs to 94.152.254.111.

ns2.cyberfolks.pl directs to 94.152.255.111.

ns3.cyberfolks.pl directs to 94.152.254.161.

Host names pointing to 94.152.254.111 IP addresses: dns1.linuxpl.com and ns1.cyberfolks.pl.

Host names pointing to 94.152.255.111 IP addresses: dns2.linuxpl.com and ns2.cyberfolks.pl.

Host names pointing to 94.152.254.161 IP addresses: dns3.linuxpl.com and ns3.cyberfolks.pl.