interstudy.sk - robtex.com

interstudy.sk

DNSSECπŸ”’ Signed (DS record present)
A195.181.248.218πŸ‡ΈπŸ‡° ONE-NETWORK195.181.248.0/22
PTRvps889.nameserver.sk
NSns1.dnsbackup.net ⭐
A2a03:b0c0:1:d0::1090:2001πŸ‡¬πŸ‡§ DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean
PTRns3-lon.core.webglobe.com
A178.62.60.201πŸ‡¬πŸ‡§ DIGITALOCEAN178.62.0.0/18 DigitalOcean
PTRns3-lon.core.webglobe.com
NSns1.nameserver.sk
A2a00:1e40:a:53::5πŸ‡ΈπŸ‡° IGNUM-AS2a00:1e40:a::/48
PTRns1-bra.core.webglobe.com
A185.65.223.35πŸ‡ΈπŸ‡° IGNUM-AS185.65.223.0/24
PTRns1-bra.core.webglobe.com
NSns2.dnsbackup.net
A2a00:1e40:a:53::5πŸ‡ΈπŸ‡° IGNUM-AS2a00:1e40:a::/48
PTRns1-bra.core.webglobe.com
A185.65.223.35πŸ‡ΈπŸ‡° IGNUM-AS185.65.223.0/24
PTRns1-bra.core.webglobe.com
NSns2.nameserver.sk
A2001:1ab0:7e1e:2::5πŸ‡¨πŸ‡Ώ IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRns2-prg.core.webglobe.com
A217.31.48.201πŸ‡¨πŸ‡Ώ IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRns2-prg.core.webglobe.com
MXmailin.mx-hub.cz ⭐
A2001:1ab0:7e1f:1::1:3πŸ‡¨πŸ‡Ώ IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRmailin.mx-hub.cz
A130.193.14.152πŸ‡¨πŸ‡Ώ IGNUM-AS130.193.8.0/21 Webglobe s.r.o. H90
PTRmailin.mx-hub.cz
MXmailin.mx-hub.eu ⭐
A2001:1ab0:7e1f:1::1:4πŸ‡¨πŸ‡Ώ IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRmailin.mx-hub.eu
A130.193.14.153πŸ‡¨πŸ‡Ώ IGNUM-AS130.193.8.0/21 Webglobe s.r.o. H90
PTRmailin.mx-hub.eu
MXmailin.mx-hub.net ⭐
A2001:880:0:15::177πŸ‡©πŸ‡ͺ ONE-NETWORK2001:880::/32
PTRmailin.mx-hub.net
A185.102.21.54πŸ‡¨πŸ‡Ώ ONE-NETWORK185.102.21.0/24
PTRmailin.mx-hub.net
MXmailin.mx-hub.sk ⭐
A2001:880:0:15::60πŸ‡©πŸ‡ͺ ONE-NETWORK2001:880::/32
PTRmailin.mx-hub.sk
A185.102.21.195πŸ‡¨πŸ‡Ώ ONE-NETWORK185.102.21.0/24
PTRmailin.mx-hub.sk
TXTv=spf1 a mx include:_spf.nameserver.sk -all
TXTv=spf2.0/mfrom,pra +a +mx include:_spf2.nameserver.sk -all
TXTfacebook-domain-verification=spd13xvci3u95i81rajmp91wyk9665
TXTgoogle-site-verification=Vsf5Ulim9xH5hlM_I_g56380bDCHvf8cgczNKMQUa-Q
SOAns1.dnsbackup.netroot@dnsbackup.net 2026-04-22 #1

sk

DNSSECπŸ”’ 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=2018512631

Subdomains

Same first word

Similar names

DNS History

12 records (9 active, 3 former)

20162017201820192020202120222023202420252026NSns1.dnsbackup.netns1.nameserver.skns2.dnsbackup.netns2.nameserver.skMXmailin.mx-hub.czmailin.mx-hub.eumailin.mx-hub.netmailin.mx-hub.skas.mx-hub.netas.mx-hub.skA195.181.248.218213.215.115.12
●NSns1.dnsbackup.net2015-05-26 β†’ 2026-04-23 Β· 2 obs
● 2015-05-26 13:50:12
● 2026-04-23 12:07:30
●NSns1.nameserver.sk2015-05-26 β†’ 2026-04-23 Β· 2 obs
● 2015-05-26 13:50:12
● 2026-04-23 12:07:30
●NSns2.dnsbackup.net2015-05-26 β†’ 2026-04-23 Β· 2 obs
● 2015-05-26 13:50:12
● 2026-04-23 12:07:30
●NSns2.nameserver.sk2015-05-26 β†’ 2026-04-23 Β· 2 obs
● 2015-05-26 13:50:12
● 2026-04-23 12:07:30
β—‹MXas.mx-hub.net2015-05-26 β†’ 2017-02-09 Β· 4 obs
● 2015-05-26 13:50:12
● 2017-02-09 19:16:02
β—‹ 2026-03-29 02:41:10
β—‹ 2026-04-23 12:07:30
β—‹MXas.mx-hub.sk2015-05-26 β†’ 2017-02-09 Β· 4 obs
● 2015-05-26 13:50:12
● 2017-02-09 19:16:02
β—‹ 2026-03-29 02:41:10
β—‹ 2026-04-23 12:07:30
●MXmailin.mx-hub.cz2015-05-26 β†’ 2026-04-23 Β· 2 obs
● 2015-05-26 13:50:12
● 2026-04-23 12:07:30
●MXmailin.mx-hub.eu2015-05-26 β†’ 2026-04-23 Β· 2 obs
● 2015-05-26 13:50:12
● 2026-04-23 12:07:30
●MXmailin.mx-hub.net2015-05-26 β†’ 2026-04-23 Β· 2 obs
● 2015-05-26 13:50:12
● 2026-04-23 12:07:30
●MXmailin.mx-hub.sk2015-05-26 β†’ 2026-04-23 Β· 2 obs
● 2015-05-26 13:50:12
● 2026-04-23 12:07:30
●A195.181.248.2182026-03-29 β†’ 2026-04-23 Β· 3 obs
β—‹ 2017-02-09 19:16:02
● 2026-03-29 02:41:10
● 2026-04-23 12:07:30
β—‹A213.215.115.122015-05-26 β†’ 2017-02-09 Β· 4 obs
● 2015-05-26 13:50:12
● 2017-02-09 19:16:02
β—‹ 2026-03-29 02:41:10
β—‹ 2026-04-23 12:07:30

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
ske.tld.sk, f.tld.sk, g.tld.sk, h.tld.sk-
interstudy.skns1.dnsbackup.net, ns1.nameserver.sk, ns2.dnsbackup.net, ns2.nameserver.sk4 records

βœ… Authoritative Response

Server:185.65.223.35

NS records: ns1.dnsbackup.net, ns1.nameserver.sk, ns2.dnsbackup.net, ns2.nameserver.sk

πŸ”’ DNSSEC Status

πŸ” Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 782ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A1195.181.248.218
NS4ns1.dnsbackup.net, ns1.nameserver.sk...
MX4mailin.mx-hub.cz (pri: 5), mailin.mx-hub.eu (pri: 5)...
TXT4facebook-domain-verification=spd13xvci3u, v=spf2.0/mfrom,pra +a +mx include:_spf2....
SOA1ns1.dnsbackup.net root.dnsbackup.net

πŸ“Œ Glue Records Collected

Total: 4

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

Analysis

Hierarchy

interstudy.sk is the parent of www.interstudy.sk.

IP Addresses

interstudy.sk points to IP number 195.181.248.218.

For instance, other host names studyfest.sk, highschool.sk, vps889.nameserver.sk, www.univerzityeu.sk and univerzityeu.sk share IP numbers with interstudy.sk.

Name Servers

interstudy.sk is delegated to four name servers: ns1.dnsbackup.net, ns2.dnsbackup.net, ns1.nameserver.sk and ns2.nameserver.sk.

interstudy.sk shares name servers with other domains at least partially, for example michalmesko.com, bsmoto.sk, inky.sk, prodent.sk and avpro.sk.

These name servers are commonly used with ns.axfone.cz, ns.axfone.eu and ns.axfone.sk.

Hostnames with two IPs

Hostname ns1.dnsbackup.net points to 2a03:b0c0:1:d0::1090:2001 and 178.62.60.201.

Hostname ns2.dnsbackup.net points to 2a00:1e40:a:53::5 and 185.65.223.35.

Hostname ns1.nameserver.sk points to 2a00:1e40:a:53::5 and 185.65.223.35.

Hostname ns2.nameserver.sk points to 2001:1ab0:7e1e:2::5 and 217.31.48.201.

Hostnames pointing to 2a00:1e40:a:53::5: ns2.dnsbackup.net and ns1.nameserver.sk.

Hostnames pointing to 185.65.223.35: ns2.dnsbackup.net and ns1.nameserver.sk.

Pattern: ns2.dnsbackup.net and ns1.nameserver.sk both point to 2a00:1e40:a:53::5 and 185.65.223.35.

Mail Servers

interstudy.sk is handled by four mail servers: mailin.mx-hub.cz, mailin.mx-hub.eu, mailin.mx-hub.net and mailin.mx-hub.sk.

interstudy.sk shares mail servers with other domains at least partially; for instance dtelektronik.sk, gator.sk, klimo.eu, tvkomarno.sk and bommauto.sk.

these mail servers are commonly used with the mail servers as.mx-hub.sk.

Host names with two IP numbers:

mailin.mx-hub.cz points to: 2001:1ab0:7e1f:1::1:3 and 130.193.14.152

mailin.mx-hub.eu points to: 2001:1ab0:7e1f:1::1:4 and 130.193.14.153

mailin.mx-hub.net points to: 2001:880:0:15::177 and 185.102.21.54

mailin.mx-hub.sk points to: 2001:880:0:15::60 and 185.102.21.195