pro4b.com - dns.ninja

`pro4b.com`

DNSSEC	⚠️ Not signed
A	188.210.221.86^{🇵🇱 DATASPACE188.210.220.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
		PTR	`h26.seohost.pl`
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.pro4b.com` ⭐
		A	188.210.221.86^{🇵🇱 DATASPACE188.210.220.0/22 IPv4 route for PERSKIMEDIA Szymon Perski}
			PTR	`h26.seohost.pl`
TXT	`v=spf1 redirect=_spf-h26.microhost.pl`
SOA	`ns1.seohost.pl`hostmaster@pro4b.com 2026-01-02 #0

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1781393728

Subdomains

mail.pro4b.com

Same first word

pro4b.com

pro4b.eu

Similar names

b4pro.de

obrp4.cn

bor4p.cfd

DNS History

7 records (4 active, 3 former)

○NSns01.domaincontrol.com2017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 17:12:10
○ 2019-05-02 04:36:14
○ 2026-06-13 23:52:32

○NSns02.domaincontrol.com2017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 17:12:10
○ 2019-05-02 04:36:14
○ 2026-06-13 23:52:32

●NSns1.seohost.pl2026-03-23 → 2026-06-13 · 3 obs

○ 2019-05-02 04:36:14
● 2026-03-23 15:00:44
● 2026-06-13 23:52:32

●NSns2.seohost.pl2026-03-23 → 2026-06-13 · 3 obs

○ 2019-05-02 04:36:14
● 2026-03-23 15:00:44
● 2026-06-13 23:52:32

●MXmail.pro4b.com2017-02-07 → 2026-06-13 · 4 obs

● 2017-02-07 17:12:10
○ 2019-05-02 04:36:14
● 2026-03-23 15:00:44
● 2026-06-13 23:52:32

●A188.210.221.862026-03-23 → 2026-06-13 · 3 obs

○ 2019-05-02 04:36:14
● 2026-03-23 15:00:44
● 2026-06-13 23:52:32

○A62.113.208.612017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 17:12:10
○ 2019-05-02 04:36:14
○ 2026-06-13 23:52:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
pro4b.com	ns1.seohost.pl, ns2.seohost.pl	-

✅ Authoritative Response

Server:188.210.223.253

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pro4b.com (unsigned zone)

⏱️ Timing

Total: 1042ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.210.221.86`
NS	2	`ns2.seohost.pl, ns1.seohost.pl`
MX	1	`mail.pro4b.com (pri: 10)`
TXT	1	`v=spf1 redirect=_spf-h26.microhost.pl`
SOA	1	`ns1.seohost.pl hostmaster.pro4b.com`

Analysis

Hierarchy

mail.pro4b.com is a subdomain of pro4b.com.

IP Addresses

pro4b.com has exactly one IP address — 188.210.221.86.

selfwise.pl, serwis-klimatyzacji.com.pl, slzht.pl plus two other host names have IP numbers in common with pro4b.com.

Name Servers

DNS delegation for pro4b.com points to two name servers: ns1.seohost.pl and ns2.seohost.pl.

The name server configuration of pro4b.com is shared with other domains, for instance mail.ctk-trio.pl, kormoran.krakow.pl, sjenit.com and two others.

The name servers of pro4b.com overlap at least partially with those of other domains — among them rajpodatkowy.waw.pl, inbed.me, borysuje.pl and two more.

These name servers commonly co-occur with the name servers ns3.seohost.pl, dns620ta.dnslite.eu, ns1.microhost.pl and ns2.microhost.pl.

ns1.seohost.pl directs to 185.200.47.250 and 188.210.221.52. ns2.seohost.pl directs to 188.210.221.179 and 188.210.223.253. Each host name carries two IP addresses.

Mail Servers

pro4b.com uses one mail server — mail.pro4b.com.

mail.pro4b.com has exactly one IP number: 188.210.221.86.