`jan-bus.pl`

DNSSEC	⚠️ Not signed
A	77.55.253.51^{🇵🇱 NETARTGROUP77.55.252.0/23}
		PTR	`u51.atthost.pl`
NS	`ns1.atthost.pl` ⭐
		A	77.55.253.101^{🇵🇱 NETARTGROUP77.55.252.0/23}
			PTR	`ns1.atthost.pl`
			PTR	`srvatt1.atthost.pl`
NS	`ns2.atthost.pl`
		A	77.55.253.102^{🇵🇱 NETARTGROUP77.55.252.0/23}
			PTR	`ns2.atthost.pl`
			PTR	`srv2att.atthost.pl`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c29::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f27.1e100.net`
		A	142.251.167.27^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
SOA	`ns1.atthost.pl`root@jan-bus.pl 2024-08-21 #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=1785134031

Same first word

jan-bus.pl

Similar names

bnj-usa.com

DNS History

16 records (8 active, 8 former)

●NSns1.atthost.pl2026-02-16 → 2026-07-27 · 3 obs

○ 2016-04-25 02:03:04
● 2026-02-16 08:03:04
● 2026-07-27 22:44:48

○NSns1.dreamhost.com2015-08-04 → 2016-04-25 · 4 obs

● 2015-08-04 05:11:26
● 2016-04-25 02:03:04
○ 2026-02-16 08:03:04
○ 2026-07-27 22:44:48

●NSns2.atthost.pl2026-02-16 → 2026-07-27 · 3 obs

○ 2016-04-25 02:03:04
● 2026-02-16 08:03:04
● 2026-07-27 22:44:48

○NSns2.dreamhost.com2015-08-04 → 2016-04-25 · 4 obs

● 2015-08-04 05:11:26
● 2016-04-25 02:03:04
○ 2026-02-16 08:03:04
○ 2026-07-27 22:44:48

○NSns3.dreamhost.com2015-08-04 → 2016-04-25 · 4 obs

● 2015-08-04 05:11:26
● 2016-04-25 02:03:04
○ 2026-02-16 08:03:04
○ 2026-07-27 22:44:48

●MXalt1.aspmx.l.google.com2015-08-04 → 2026-07-27 · 5 obs

● 2015-08-04 05:11:26
● 2026-02-19 09:34:06
○ 2026-03-09 01:35:40
● 2026-07-02 22:38:14
● 2026-07-27 22:44:48

●MXalt2.aspmx.l.google.com2015-08-04 → 2026-07-27 · 5 obs

● 2015-08-04 05:11:26
● 2026-02-19 09:34:06
○ 2026-03-09 01:35:40
● 2026-07-02 22:38:14
● 2026-07-27 22:44:48

●MXalt3.aspmx.l.google.com2026-02-16 → 2026-07-27 · 6 obs

○ 2016-04-25 02:03:04
● 2026-02-16 08:03:04
● 2026-02-19 09:34:06
○ 2026-03-09 01:35:40
● 2026-07-02 22:38:14
● 2026-07-27 22:44:48

●MXalt4.aspmx.l.google.com2026-02-16 → 2026-07-27 · 6 obs

○ 2016-04-25 02:03:04
● 2026-02-16 08:03:04
● 2026-02-19 09:34:06
○ 2026-03-09 01:35:40
● 2026-07-02 22:38:14
● 2026-07-27 22:44:48

●MXaspmx.l.google.com2015-08-04 → 2026-07-27 · 5 obs

● 2015-08-04 05:11:26
● 2026-02-19 09:34:06
○ 2026-03-09 01:35:40
● 2026-07-02 22:38:14
● 2026-07-27 22:44:48

○MXaspmx2.googlemail.com2015-08-04 → 2016-04-25 · 4 obs

● 2015-08-04 05:11:26
● 2016-04-25 02:03:04
○ 2026-02-16 08:03:04
○ 2026-07-27 22:44:48

○MXaspmx3.googlemail.com2015-08-04 → 2016-04-25 · 4 obs

● 2015-08-04 05:11:26
● 2016-04-25 02:03:04
○ 2026-02-16 08:03:04
○ 2026-07-27 22:44:48

○MXaspmx4.googlemail.com2015-08-04 → 2016-04-25 · 4 obs

● 2015-08-04 05:11:26
● 2016-04-25 02:03:04
○ 2026-02-16 08:03:04
○ 2026-07-27 22:44:48

○MXaspmx5.googlemail.com2015-08-04 → 2016-04-25 · 4 obs

● 2015-08-04 05:11:26
● 2016-04-25 02:03:04
○ 2026-02-16 08:03:04
○ 2026-07-27 22:44:48

○A208.113.162.312015-08-04 → 2016-04-25 · 4 obs

● 2015-08-04 05:11:26
● 2016-04-25 02:03:04
○ 2026-02-16 08:03:04
○ 2026-07-27 22:44:48

●A77.55.253.512026-02-16 → 2026-07-27 · 6 obs

○ 2016-04-25 02:03:04
● 2026-02-16 08:03:04
● 2026-02-19 09:34:06
○ 2026-03-09 01:35:40
● 2026-07-02 22:38:14
● 2026-07-27 22:44:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	a-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl...	-
jan-bus.pl	ns1.atthost.pl, ns2.atthost.pl	-

✅ Authoritative Response

Server:77.55.253.102

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jan-bus.pl (unsigned zone)

⏱️ Timing

Total: 803ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`77.55.253.51`
NS	2	`ns1.atthost.pl, ns2.atthost.pl`
MX	5	`ALT1.ASPMX.L.GOOGLE.COM (pri: 5), ASPMX.L.GOOGLE.COM (pri: 1)...`
SOA	1	`ns1.atthost.pl root.jan-bus.pl`

Analysis

IP Addresses

jan-bus.pl has exactly one IP address — 77.55.253.51.

euroblask.pl, op.wsns.eu, ajt51.rev.serwery.pl plus two other host names have IP numbers in common with jan-bus.pl.

Name Servers

jan-bus.pl has two authoritative name servers — ns1.atthost.pl and ns2.atthost.pl.

The name server configuration of jan-bus.pl is shared with other domains, for instance strazochronyportugdansk.pl, leprive.eu, koloryholi.pl and two others.

ns1.atthost.pl and ns2.atthost.pl each resolve to one IP number: ns1.atthost.pl points to 77.55.253.101 and ns2.atthost.pl points to 77.55.253.102.

Mail Servers

Mail for jan-bus.pl is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by jan-bus.pl are shared with other domains: ncsiuk.com, tunad.io, rfasset.com and two others among them.

These mail servers often appear in conjunction with the mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names pointing to two IP addresses:

aspmx.l.google.com resolves to 142.251.167.27 and 2607:f8b0:4004:c29::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to 172.253.157.27 and 2a00:1450:400c:c23::1b.