`u300.linux.pl`

DNSSEC	⚠️ Not signed
A	77.55.252.130^{🇵🇱 NETARTGROUP77.55.252.0/23}
		PTR	`u300.linux.pl`

`linux.pl`

	DNSSEC	⚠️ Not signed
	A	77.55.252.129^{🇵🇱 NETARTGROUP77.55.252.0/23}
	NS	`dns1.linux.pl` ⭐
	NS	`dns2.linux.pl`
	NS	`dns3.linux.pl` ⚠️ Not in parent delegation
	MX	`mail.linux.pl` ⭐
	TXT	`onet-domain-verification=0b51db550a578b4fd6b2d5916c401642bc636aa01fd7eb7f59a4...`
	TXT	`google-site-verification=sNu_PuHido32AEs3UhxO7st0e83iymB0WTPhq0hgUWE`
	TXT	`v=spf1 a mx ip4:77.55.252.129 ip4:157.90.174.113 ip4:159.69.177.87 ip6:2a01:4...`
	TXT	`onet-domain-verification=7d953ad491cd29d890a37daf58d19b27784c24bd0a89e66e4daa...`
	TXT	`cpaas9218106.nazwa.pl`
	SOA	`dns1.linux.pl`root@linux.pl 2026-03-16 #7

WOT: SAFE (91/100)
rank #265411 globally
rank #1754 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #54,889

PTR for

130.252.55.77.in-addr.arpa

Same first word

u300.or.kr

u300.cn

Similar names

u003.cn

003u.cc

u003.com

DNS History

1 record (1 active, 0 former)

●A77.55.252.1302026-03-09 → 2026-05-10 · 4 obs

● 2026-03-09 01:36:54
○ 2026-04-11 19:11:16
● 2026-05-10 08:24:02
● 2026-05-10 08:24:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	a-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl...	-
linux.pl	dns1.linux.pl, dns2.linux.pl	2 records

✅ Authoritative Response

Server:77.55.252.131

NS records: dns1.linux.pl, dns2.linux.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linux.pl (unsigned zone)

⏱️ Timing

Total: 460ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`77.55.252.130`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (dns1.linux.pl, dns2.linux.pl)

Analysis

IP Addresses

u300.linux.pl points to a single IP: 77.55.252.130.

Other host names, for instance catalystrecycling.pl, broetje.pl, klementynka.com.pl, mail.kredytekspert.com and kolocyba.pl share IP numbers with u300.linux.pl.

u300.linux.pl - robtex.com

u300.linux.pl

linux.pl