`mx-b.wcss.pl`

DNSSEC	⚠️ Not signed
A	156.17.193.121^{🇵🇱 WASK156.17.0.0/16}
		PTR	`mx-b.wcss.pl`

`wcss.pl`

	DNSSEC	⚠️ Not signed
	A	156.17.193.248^{🇵🇱 WASK156.17.0.0/16}
	NS	`wask.wask.wroc.pl` ⭐
	NS	`sun2.pwr.wroc.pl`
	MX	`mx-a.wcss.pl` ⭐
	MX	`mx-b.wcss.pl` ⭐
	TXT	`v=spf1 mx a a:mta1.wcss.pl a:mta2.wcss.pl a:mta3.wcss.pl a:mta4.wcss.pl ip4:1...`
	TXT	`mojecertpl-site-verification-74GrSF6SA2h1C7sz4xfwcXZUXsF47cUK`
	SOA	`wask.wask.wroc.pl`admin@wask.wroc.pl 2026-03-19 #1

📈 Tranco rank: #375,102

MX for

Same first word

mx-b.com

mx-b.de

Similar names

x-mb.net

b-mx.com

x-mb.com.ua

x-mb.de

x-mb.com

mb-x.de

mb-x.com

bm-x.de

bm-x.nl

x-bm.nl

m-bx.com

bm-x.ru

DNS History

1 record (1 active, 0 former)

●A156.17.193.1212026-02-17 → 2026-03-28 · 2 obs

● 2026-02-17 00:07:56
● 2026-03-28 21:01:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	a-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl...	-
wcss.pl	sun2.pwr.wroc.pl, wask.wask.wroc.pl	2 records

✅ Authoritative Response

Server:156.17.254.3

NS records: sun2.pwr.wroc.pl, wask.wask.wroc.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for wcss.pl (unsigned zone)

⏱️ Timing

Total: 684ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`156.17.193.121`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (wask.wask.wroc.pl, sun2.pwr.wroc.pl)

Analysis

Mail Server Role

mx-b.wcss.pl is used as a mail server for aes.org.pl, radioluz.pwr.edu.pl, armalux.wroc.pl, wcss.pl and wask.wroc.pl along with a few other domains.

mx-a.wcss.pl, z-mta1.wcss.wroc.pl and z-mta2.wcss.wroc.pl are commonly used as mail servers in conjunction with mx-b.wcss.pl.

IP Addresses

mx-b.wcss.pl maps to IP address 156.17.193.121.

mx-b.wcss.pl - robtex.com

mx-b.wcss.pl

wcss.pl