4s.sk - robtex.com

4s.sk

DNSSEC⚠️ Not signed
A2a02:2b88:2:1::44f2:1🇨🇿 WEDOS2a02:2b88::/32 Internet, a.s.
PTRmail.ff.sk
A31.31.75.245🇨🇿 WEDOS31.31.72.0/21 Internet, a.s.
NS4s.sk ⭐
A2a02:2b88:2:1::44f2:1🇨🇿 WEDOS2a02:2b88::/32 Internet, a.s.
PTRmail.ff.sk
A31.31.75.245🇨🇿 WEDOS31.31.72.0/21 Internet, a.s.
PTRmail.ff.sk
NSns1.ff.sk
A2a02:2b88:2:1::44f2:1🇨🇿 WEDOS2a02:2b88::/32 Internet, a.s.
PTRmail.ff.sk
A31.31.75.245🇨🇿 WEDOS31.31.72.0/21 Internet, a.s.
PTRmail.ff.sk
NSns2.ff.sk ⚠️ Not in zone NS records
A2a02:2b88:2:1::44f2:1🇨🇿 WEDOS2a02:2b88::/32 Internet, a.s.
PTRmail.ff.sk
A31.31.75.245🇨🇿 WEDOS31.31.72.0/21 Internet, a.s.
PTRmail.ff.sk
SOA4s.skroot@aftermarket.sk serial=2025777117

sk

DNSSEC🔒 Signed (DS record present)
NSm.tld.sk ⭐
NSe.tld.sk
NSf.tld.sk
NSg.tld.sk
NSh.tld.sk
SOAm.tld.skhostmaster@sk-nic.sk serial=2018486955

NS for

4s.sk

Same first word

4s.fi
4s.lt
4s.com.tr
4s.no
4s.nu
4s.hu
4s.tv
4s.biz
4s.pl
4s.si
4s.cx
4s.dk
4s.fr
4s.pl.ua
4s.cl
4s.org
4s.org.sg
4s.eu
4s.be
4s.cm
4s.io
4s.cc
4s.com.br
4s.wiki
4s.lv
4s.world
4s.link
4s.by
4s.cz
4s.su
4s.ca
4s.sk
4s.cn
4s.hk
4s.com
4s.game
4s.com.pl
4s.ae

Similar names

s4.fr
s4.cz
s4.by
s4.com.ua
s4.de
s4.is
s4.be
s4.sp.gov.br
s4.co.uk
s4.world
s4.eng.br
s4.cn
s4.solutions
s4.ddns.net
s4.hu
s4.dev
s4.pl
s4.ru
s4.ag
s4.community
s4.com.br
s4.io
s4.dk
s4.cl
s4.no
s4.eu
s4.agency
s4.ca
s4.network
s4.com
s4.kz

DNS History

5 records (5 active, 0 former)

NS4s.skns1.ff.skns2.ff.skA2a02:2b88:2:1::44f2:131.31.75.245
●NS4s.sk2026-02-28 → 2026-03-24 · 2 obs
● 2026-02-28 17:44:38
● 2026-03-24 23:30:02
●NSns1.ff.sk2026-02-28 → 2026-03-24 · 2 obs
● 2026-02-28 17:44:38
● 2026-03-24 23:30:02
●NSns2.ff.sk2026-02-28 → 2026-03-24 · 2 obs
● 2026-02-28 17:44:38
● 2026-03-24 23:30:02
●A2a02:2b88:2:1::44f2:12026-02-28 → 2026-03-24 · 2 obs
● 2026-02-28 17:44:38
● 2026-03-24 23:30:02
●A31.31.75.2452026-02-28 → 2026-03-24 · 2 obs
● 2026-02-28 17:44:38
● 2026-03-24 23:30:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ske.tld.sk, f.tld.sk, g.tld.sk, h.tld.sk-
4s.skns1.ff.sk, ns2.ff.sk4 records

✅ Authoritative Response

Server:31.31.75.245

NS records: ns1.ff.sk, ns2.ff.sk

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 502ms | Queries: -

📄 Records

TypeCountSample Data
A131.31.75.245
AAAA12a02:2b88:2:1::44f2:1
NS1ns1.ff.sk
SOA14s.sk root.aftermarket.sk

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.ff.sk, ns2.ff.sk, ns1.ff.sk...)

Analysis

Name Server Role

4s.sk serves as a name server for 4s.sk.

ns1.ff.sk and ns2.ff.sk are commonly used as name servers along with 4s.sk.

IP Addresses

4s.sk points to two IP numbers: 2a02:2b88:2:1::44f2:1 and 31.31.75.245.

Other host names such as mail.vraky.sk, x.h.06.com.klczy.ns147.ans1.s7.sk, ubuntu.sk, mailin1.chudik.sk and trial.sk share IPs with 4s.sk.

Name Servers

4s.sk is delegated to three name servers: 4s.sk, ns1.ff.sk and ns2.ff.sk.

4s.sk at least partially shares name servers with other domains, for instance ustava.sk, fakenews.sk, ripple.sk, chlap.sk and istore.sk.

these name servers are commonly used together with the name servers domena-odchytena.aftermarket.sk, daviscup.sk, oa.sk, gtr.sk and i4.sk.

Host names with two IP numbers:

4s.sk points to 2a02:2b88:2:1::44f2:1 and 31.31.75.245

ns1.ff.sk points to 2a02:2b88:2:1::44f2:1 and 31.31.75.245

ns2.ff.sk points to 2a02:2b88:2:1::44f2:1 and 31.31.75.245

Host names that point to 2a02:2b88:2:1::44f2:1: 4s.sk and ns1.ff.sk and ns2.ff.sk

Host names that point to 31.31.75.245: 4s.sk and ns1.ff.sk and ns2.ff.sk