mstudy.pl - dns.ninja

`mstudy.pl`

DNSSEC	⚠️ Not signed
A	91.219.122.228^{🇵🇱 IC-AS91.219.120.0/22 Internet Cafe Uslugi Informatyczne Miroslaw Backiel}
		PTR	`host-91-219-122-228.backiel.com.pl`
A	194.88.154.131^{🇵🇱 IC-AS194.88.154.0/23 Internet Cafe uslugi informatyczne Miroslaw Backiel}
NS	`ns1.webio.pl` ⭐
		A	194.88.154.133^{🇵🇱 IC-AS194.88.154.0/23 Internet Cafe uslugi informatyczne Miroslaw Backiel}
			PTR	`ns1.webio.pl`
NS	`ns2.webio.pl`
		A	79.187.155.100^{🇵🇱 TPNET79.184.0.0/13 for abuse: abuse@tpnet.pl}
			PTR	`hfz100.internetdsl.tpnet.pl`
MX	`mail1.webio.pl` ⭐
		A	194.88.154.137^{🇵🇱 IC-AS194.88.154.0/23 Internet Cafe uslugi informatyczne Miroslaw Backiel}
			PTR	`mail1.webio.pl`
MX	`mail2.webio.pl` ⭐
		A	194.88.154.186^{🇵🇱 IC-AS194.88.154.0/23 Internet Cafe uslugi informatyczne Miroslaw Backiel}
			PTR	`mail2.webio.pl`
MX	`mail3.webio.pl` ⭐
		A	194.88.154.134^{🇵🇱 IC-AS194.88.154.0/23 Internet Cafe uslugi informatyczne Miroslaw Backiel}
			PTR	`mail3.webio.pl`
MX	`mailoffsite.webio.pl`⁽⁹⁰⁾
		A	79.187.155.100^{🇵🇱 TPNET79.184.0.0/13 for abuse: abuse@tpnet.pl}
			PTR	`hfz100.internetdsl.tpnet.pl`
TXT	`v=spf1 a mx ip4:194.88.154.129/26 ip4:78.131.153.11 -all`
SOA	`ns1.webio.pl`hostmaster@mstudy.pl 2026-06-17 #1

`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=1785911446

Previously MX for

mstudy.pl

Same first word

mstudy.ru

mstudy.com

mstudy.at

mstudy.pl

Similar names

dustym.xen.prgmr.com

myutsd.com

myutsd.org

dustym.com

mydsut.net

studym.com

msduty.com

mydust.com

mystud.store

mytusd.org

dutyms.com

dutyms.co.uk

myutsd.net

mystud.com

DNS History

13 records (8 active, 5 former)

○NSdns.home.pl2015-05-22 → 2016-01-24 · 4 obs

● 2015-05-22 15:57:56
● 2016-01-24 01:24:58
○ 2016-04-09 07:05:26
○ 2026-08-05 08:09:56

○NSdns2.home.pl2015-05-22 → 2016-01-24 · 4 obs

● 2015-05-22 15:57:56
● 2016-01-24 01:24:58
○ 2016-04-09 07:05:26
○ 2026-08-05 08:09:56

○NSdns3.home.pl2015-05-22 → 2016-01-24 · 4 obs

● 2015-05-22 15:57:56
● 2016-01-24 01:24:58
○ 2016-04-09 07:05:26
○ 2026-08-05 08:09:56

●NSns1.webio.pl2016-04-09 → 2026-08-05 · 3 obs

○ 2016-01-24 01:24:58
● 2016-04-09 07:05:26
● 2026-08-05 08:09:56

●NSns2.webio.pl2016-04-09 → 2026-08-05 · 3 obs

○ 2016-01-24 01:24:58
● 2016-04-09 07:05:26
● 2026-08-05 08:09:56

●MXmail1.webio.pl2016-04-09 → 2026-08-05 · 3 obs

○ 2016-01-24 01:24:58
● 2016-04-09 07:05:26
● 2026-08-05 08:09:56

●MXmail2.webio.pl2016-04-09 → 2026-08-05 · 3 obs

○ 2016-01-24 01:24:58
● 2016-04-09 07:05:26
● 2026-08-05 08:09:56

●MXmail3.webio.pl2016-04-09 → 2026-08-05 · 3 obs

○ 2016-01-24 01:24:58
● 2016-04-09 07:05:26
● 2026-08-05 08:09:56

●MXmailoffsite.webio.pl2016-04-09 → 2026-08-05 · 3 obs

○ 2016-01-24 01:24:58
● 2016-04-09 07:05:26
● 2026-08-05 08:09:56

○MXmstudy.pl2015-05-22 → 2016-01-24 · 4 obs

● 2015-05-22 15:57:56
● 2016-01-24 01:24:58
○ 2016-04-09 07:05:26
○ 2026-08-05 08:09:56

○A188.128.206.1232015-05-22 → 2016-01-24 · 4 obs

● 2015-05-22 15:57:56
● 2016-01-24 01:24:58
○ 2016-04-09 07:05:26
○ 2026-08-05 08:09:56

●A194.88.154.1312016-04-09 → 2026-08-05 · 3 obs

○ 2016-01-24 01:24:58
● 2016-04-09 07:05:26
● 2026-08-05 08:09:56

●A91.219.122.2282016-04-09 → 2026-08-05 · 3 obs

○ 2016-01-24 01:24:58
● 2016-04-09 07:05:26
● 2026-08-05 08:09:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	j-dns.pl, h-dns.pl, f-dns.pl, a-dns.pl...	-
mstudy.pl	ns1.webio.pl, ns2.webio.pl	2 records

✅ Authoritative Response

Server:194.88.154.133

NS records: ns1.webio.pl, ns2.webio.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mstudy.pl (unsigned zone)

⏱️ Timing

Total: 473ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`91.219.122.228, 194.88.154.131`
NS	2	`ns1.webio.pl, ns2.webio.pl`
MX	4	`mail3.webio.pl (pri: 10), mailoffsite.webio.pl (pri: 90)...`
TXT	1	`v=spf1 a mx ip4:194.88.154.129/26 ip4:78`
SOA	1	`ns1.webio.pl hostmaster.mstudy.pl`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.webio.pl, ns2.webio.pl)

Analysis

IP Addresses

mstudy.pl resolves to the IP addresses 91.219.122.228 and 194.88.154.131

new.stoldom.net, bartek.pl, h22-119.falconet.com.pl plus two other host names have IP numbers in common with mstudy.pl.

Name Servers

The NS records for mstudy.pl delegate to ns1.webio.pl and ns2.webio.pl.

The name server configuration of mstudy.pl is shared with other domains, for instance visualsoft.pl, fhas.pl, lawspace.pl and two others.

mstudy.pl shares at least some of its name servers with other domains, including decorato.pl, izeus.pl, old24.pl and two others.

These name servers are frequently seen alongside the name servers ns.

ns1.webio.pl and ns2.webio.pl each resolve to one IP number: ns1.webio.pl points to 194.88.154.133 and ns2.webio.pl points to 79.187.155.100.

Mail Servers

mstudy.pl has four mail servers: mail1.webio.pl, mail2.webio.pl, mail3.webio.pl and mailoffsite.webio.pl.

At least some of the mail servers used by mstudy.pl are shared with other domains: kiwimag.pl, openex.pl, iskierka.edu.pl and two others among them.

Four host names, each with one IP address: mail1.webio.pl has 194.88.154.137, mail2.webio.pl has 194.88.154.186, mail3.webio.pl has 194.88.154.134 and mailoffsite.webio.pl has 79.187.155.100.