`openmiddleware.pl`

DNSSEC	⚠️ Not signed
A	51.255.113.231^{🇫🇷 OVH51.254.0.0/15}
		PTR	`ip231.ip-51-255-113.eu`
NS	`ns1.seohost.pl` ⭐
		A	185.200.47.250^{🇵🇱 DATASPACE185.200.44.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`host-18520047250.seohost-mail.eu`
		A	188.210.221.52^{🇵🇱 DATASPACE188.210.220.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`host-18821022152.seohost-mail.eu`
NS	`ns2.seohost.pl`
		A	188.210.221.179^{🇵🇱 DATASPACE188.210.220.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`host-188210221179.seohost-mail.eu`
		A	188.210.223.253^{🇵🇱 DATASPACE188.210.220.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`host-188210223253.seohost-mail.eu`
MX	`mail.openmiddleware.pl` ⭐
		A	51.255.113.231^{🇫🇷 OVH51.254.0.0/15}
			PTR	`ip231.ip-51-255-113.eu`
TXT	`v=spf1 redirect=_spf-h20.microhost.pl`
SOA	`ns1.seohost.pl`hostmaster@openmiddleware.pl 2026-01-02 #0

`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=1776061927

Subdomains

mail.openmiddleware.pl

Same first word

openmiddleware.pl

DNS History

12 records (4 active, 8 former)

○NSns1.corpnet.pl2016-04-30 → 2017-02-01 · 5 obs

○ 2016-02-10 07:29:02
● 2016-04-30 22:33:24
● 2017-02-01 00:46:26
○ 2026-04-13 02:33:04
○ 2026-04-13 13:21:32

●NSns1.seohost.pl2026-04-13 → 2026-04-13 · 3 obs

○ 2017-02-01 00:46:26
● 2026-04-13 02:33:04
● 2026-04-13 13:21:32

○NSns1.tpnet.pl2015-07-11 → 2016-02-10 · 4 obs

● 2015-07-11 10:44:40
● 2016-02-10 07:29:02
○ 2016-04-30 22:33:24
○ 2026-04-13 13:21:32

○NSns2.corpnet.pl2016-04-30 → 2017-02-01 · 5 obs

○ 2016-02-10 07:29:02
● 2016-04-30 22:33:24
● 2017-02-01 00:46:26
○ 2026-04-13 02:33:04
○ 2026-04-13 13:21:32

●NSns2.seohost.pl2026-04-13 → 2026-04-13 · 3 obs

○ 2017-02-01 00:46:26
● 2026-04-13 02:33:04
● 2026-04-13 13:21:32

○NSns2.tpnet.pl2015-07-11 → 2016-02-10 · 4 obs

● 2015-07-11 10:44:40
● 2016-02-10 07:29:02
○ 2016-04-30 22:33:24
○ 2026-04-13 13:21:32

○NSns3.corpnet.pl2016-04-30 → 2017-02-01 · 5 obs

○ 2016-02-10 07:29:02
● 2016-04-30 22:33:24
● 2017-02-01 00:46:26
○ 2026-04-13 02:33:04
○ 2026-04-13 13:21:32

○NSns3.tpnet.pl2015-07-11 → 2016-02-10 · 4 obs

● 2015-07-11 10:44:40
● 2016-02-10 07:29:02
○ 2016-04-30 22:33:24
○ 2026-04-13 13:21:32

○NSns4.corpnet.pl2016-04-30 → 2017-02-01 · 5 obs

○ 2016-02-10 07:29:02
● 2016-04-30 22:33:24
● 2017-02-01 00:46:26
○ 2026-04-13 02:33:04
○ 2026-04-13 13:21:32

●MXmail.openmiddleware.pl2026-04-13 → 2026-04-13 · 2 obs

● 2026-04-13 02:33:04
● 2026-04-13 13:21:32

○A217.97.145.1192015-07-11 → 2017-02-01 · 4 obs

● 2015-07-11 10:44:40
● 2017-02-01 00:46:26
○ 2026-04-13 02:33:04
○ 2026-04-13 13:21:32

●A51.255.113.2312026-04-13 → 2026-04-13 · 3 obs

○ 2017-02-01 00:46:26
● 2026-04-13 02:33:04
● 2026-04-13 13:21:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	f-dns.pl, b-dns.pl, j-dns.pl, h-dns.pl...	-
openmiddleware.pl	ns1.seohost.pl, ns2.seohost.pl	4 records

✅ Authoritative Response

Server:185.200.47.250

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openmiddleware.pl (unsigned zone)

⏱️ Timing

Total: 528ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`51.255.113.231`
NS	2	`ns1.seohost.pl, ns2.seohost.pl`
MX	1	`mail.openmiddleware.pl (pri: 10)`
TXT	1	`v=spf1 redirect=_spf-h20.microhost.pl`
SOA	1	`ns1.seohost.pl hostmaster.openmiddleware`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.seohost.pl, ns2.seohost.pl, ns1.seohost.pl...)

Analysis

Hierarchy

openmiddleware.pl is the parent of mail.openmiddleware.pl.

IP Addresses

openmiddleware.pl points to IP number 51.255.113.231.

Other host names include mail.5mm.pl, 5mm.pl, mail.openmiddleware.pl and ip231.ip-51-255-113.eu that share IP numbers with openmiddleware.pl.

Name Servers

openmiddleware.pl is delegated to two name servers: ns1.seohost.pl and ns2.seohost.pl.

openmiddleware.pl uses the same name server setup as other domains such as arabam.przeprowadzki.olsztyn.pl, maratony.net, pnefal.pl, sromek.com.pl and gertis.eu.

openmiddleware.pl shares name servers with other domains at least partially, for example geants-carnaval.org, viverum.pl, centreculturelbalavoine.fr, kursy-zawodowe24.pl and oig.edu.pl.

These name servers are commonly used with ns1.microhost.pl, ns2.microhost.pl and ns3.seohost.pl.

Host names with two IP numbers:

ns1.seohost.pl points to 185.200.47.250 and 188.210.221.52; ns2.seohost.pl points to 188.210.221.179 and 188.210.223.253.

Mail Servers

openmiddleware.pl is handled by a single mail server, mail.openmiddleware.pl.

mail.openmiddleware.pl points to a single IP: 51.255.113.231.

openmiddleware.pl - robtex.com