4factor.sk - dns.ninja
4factor.sk
sk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | m.tld.sk ⭐ | ||||||
| NS | e.tld.sk | ||||||
| NS | f.tld.sk | ||||||
| NS | g.tld.sk | ||||||
| NS | h.tld.sk | ||||||
| SOA | m.tld.skhostmaster@sk-nic.sk serial=2018566299 | ||||||
Same first word
Similar names
factor4.com |
factor4.com.br |
factor4.co.za |
factor4.at |
factor4.network |
factor4.de |
factor4.be |
factor4.agency |
factor4.com.ar |
factor4.net |
factor4.es |
factor4.cat |
DNS History
14 records (9 active, 5 former)
●NSns1.dnsbackup.net2015-06-24 → 2026-06-28 · 2 obs
● 2026-06-28 08:07:04
●NSns1.nameserver.sk2015-06-24 → 2026-06-28 · 2 obs
● 2026-06-28 08:07:04
●NSns2.dnsbackup.net2015-06-24 → 2026-06-28 · 2 obs
● 2026-06-28 08:07:04
●NSns2.nameserver.sk2015-06-24 → 2026-06-28 · 2 obs
● 2026-06-28 08:07:04
○MXas.mx-hub.net2015-06-24 → 2017-03-13 · 4 obs
● 2017-03-13 14:49:32
○ 2019-02-07 06:31:34
○ 2026-06-28 08:07:04
○MXas.mx-hub.sk2015-06-24 → 2017-03-13 · 4 obs
● 2017-03-13 14:49:32
○ 2019-02-07 06:31:34
○ 2026-06-28 08:07:04
●MXmailin.mx-hub.net2015-06-24 → 2026-06-28 · 2 obs
● 2026-06-28 08:07:04
●A195.181.251.222026-03-07 → 2026-06-28 · 3 obs
● 2026-03-07 22:37:26
● 2026-06-28 08:07:04
○A2001:1ba0:2a0:5965:0:30:24:12015-06-24 → 2017-03-13 · 4 obs
● 2017-03-13 14:49:32
○ 2019-02-07 06:31:34
○ 2026-06-28 08:07:04
○A217.67.30.242015-06-24 → 2017-03-13 · 4 obs
● 2017-03-13 14:49:32
○ 2019-02-07 06:31:34
○ 2026-06-28 08:07:04
○A217.67.30.282019-02-07 → 2019-02-07 · 4 obs
● 2019-02-07 06:31:34
○ 2026-03-07 22:37:26
○ 2026-06-28 08:07:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sk | e.tld.sk, f.tld.sk, g.tld.sk, h.tld.sk | 8 records |
| 4factor.sk | ns1.dnsbackup.net, ns1.nameserver.sk, ns2.dnsbackup.net, ns2.nameserver.sk | 4 records |
✅ Authoritative Response
Server:185.65.223.35
NS records: ns1.dnsbackup.net, ns1.nameserver.sk, ns2.dnsbackup.net, ns2.nameserver.sk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1051ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.181.251.22 |
| NS | 4 | ns1.dnsbackup.net, ns1.nameserver.sk... |
| MX | 4 | mailin.mx-hub.cz (pri: 5), mailin.mx-hub.eu (pri: 5)... |
| TXT | 2 | v=spf1 a mx include:_spf.nameserver.sk -, v=spf2.0/mfrom,pra +a +mx include:_spf2. |
| SOA | 1 | ns1.dnsbackup.net root.dnsbackup.net |
📌 Glue Records Collected
Total: 12
In-bailiwick: 8 (e.tld.sk, e.tld.sk, f.tld.sk...)
Out-of-bailiwick: 4 (ns1.nameserver.sk, ns1.nameserver.sk, ns2.nameserver.sk...)
Analysis
IP Addresses
4factor.sk directs to one IP number, which is 195.181.251.22.
Among the host names that share IP numbers with 4factor.sk are kent.sk, astrotouch.com, pavolcvik.eu and two others.
Name Servers
The domain 4factor.sk is delegated to these four name servers: ns1.dnsbackup.net, ns2.dnsbackup.net, ns1.nameserver.sk and ns2.nameserver.sk.
At least some of 4factor.sk's name servers are shared with other domains, for example matratex.sk, pneuservisonline.sk, azsk.sk and two more.
It is common for these name servers to be used in conjunction with the name servers ns.axfone.cz, ns.axfone.eu and ns.axfone.sk.
The host names ns1.dnsbackup.net, ns2.dnsbackup.net, ns1.nameserver.sk and ns2.nameserver.sk each have two IP numbers. ns1.dnsbackup.net has 178.62.60.201 and 2a03:b0c0:1:d0::1090:2001. Both ns2.dnsbackup.net and ns1.nameserver.sk resolve to 185.65.223.35 and 2a00:1e40:a:53::5. ns2.nameserver.sk resolves to 217.31.48.201 and 2001:1ab0:7e1e:2::5.
ns2.dnsbackup.net along with ns1.nameserver.sk each resolve to 2a00:1e40:a:53::5 IP addresses.
ns2.dnsbackup.net along with ns1.nameserver.sk each resolve to 185.65.223.35 IP addresses.
Mail Servers
Mail for 4factor.sk is handled by four mail servers: mailin.mx-hub.cz, mailin.mx-hub.eu, mailin.mx-hub.net and mailin.mx-hub.sk.
4factor.sk shares at least some of its mail servers with other domains — for example famg.sk, grafin.sk, epravda.sk and two more.
Four hostnames, each resolving to a pair of IP addresses: mailin.mx-hub.cz directs to 130.193.14.152 and 2001:1ab0:7e1f:1::1:3; mailin.mx-hub.eu directs to 130.193.14.153 and 2001:1ab0:7e1f:1::1:4; mailin.mx-hub.net directs to 185.102.21.54 and 2001:880:0:15::177; mailin.mx-hub.sk directs to 185.102.21.195 and 2001:880:0:15::60.