`mx2.holdingone.pl`

CNAME	`holding1.pl`
DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:22d^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:32d^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4b30^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.2.45^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.3.45^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.75.48^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kellen.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2ca0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kellen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kellen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kellen.ns.cloudflare.com`
		A	108.162.195.160^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kellen.ns.cloudflare.com`
		A	162.159.44.160^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kellen.ns.cloudflare.com`
		A	172.64.35.160^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kellen.ns.cloudflare.com`
NS	`paislee.ns.cloudflare.com`
		A	2606:4700:50::a29f:26b7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paislee.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`paislee.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`paislee.ns.cloudflare.com`
		A	108.162.194.183^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paislee.ns.cloudflare.com`
		A	162.159.38.183^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paislee.ns.cloudflare.com`
		A	172.64.34.183^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paislee.ns.cloudflare.com`
MX	`d336849.a.ess.de.barracudanetworks.com` ⭐
		A	18.185.115.250^{🇩🇪 Amazon18.184.0.0/15 EC2 FRA prefix}
			PTR	`mail.ess.de.barracuda.com`
		A	18.185.115.251^{🇩🇪 Amazon18.184.0.0/15 EC2 FRA prefix}
			PTR	`mail.ess.de.barracuda.com`
		A	18.185.115.252^{🇩🇪 Amazon18.184.0.0/15 EC2 FRA prefix}
			PTR	`mail.ess.de.barracuda.com`
MX	`d336849.b.ess.de.barracudanetworks.com` ⭐
		A	18.185.115.250^{🇩🇪 Amazon18.184.0.0/15 EC2 FRA prefix}
			PTR	`mail.ess.de.barracuda.com`
		A	18.185.115.251^{🇩🇪 Amazon18.184.0.0/15 EC2 FRA prefix}
			PTR	`mail.ess.de.barracuda.com`
		A	18.185.115.252^{🇩🇪 Amazon18.184.0.0/15 EC2 FRA prefix}
			PTR	`mail.ess.de.barracuda.com`
TXT	`MS=1CEB792DF65A99FCC2034EDE379CF361B3E68F0B`
TXT	`ZOOM_verify_mw7uHHk3mv1vUDJfbeuB11`
TXT	`_o9cq662jt3ue00cqq7oc5jsbm9cyqt7`
TXT	`_rrafwvpi4unrtwzeu4sitcqka3pc8hb`
TXT	`mojecertpl-site-verification-Ge0IWIX3d0L2WBmnqozngJi0lvMOJMvZ`
TXT	`v=spf1 mx ip4:84.205.162.38 ip4:84.205.162.39 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.26.2.45, 104.26.3.45, 172.67.75.48
		IPv6	2606:4700:20::681a:22d, 2606:4700:20::681a:32d, 2606:4700:20::ac43:4b30
SOA	`kellen.ns.cloudflare.com`dns@cloudflare.com serial=2396817656

`holdingone.pl`

	DNSSEC	⚠️ Not signed
	A	84.205.162.45^{🇵🇱 CH1-AS84.205.162.0/24}
	NS	`kellen.ns.cloudflare.com` ⭐
	NS	`paislee.ns.cloudflare.com`
	TXT	`MS=1CEB792DF65A99FCC2034EDE379CF361B3E68F0B`
	TXT	`v=spf1 mx -all`
	SOA	`kellen.ns.cloudflare.com`dns@cloudflare.com serial=2399417099

Previously MX for

holdingone.pl

Same first word

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mx2.net

mx2.in-berlin.de

mx2.hu

mx2.law

mx2.tuxfamily.org

mx2.at

mx2.cn

mx2.de

mx2.ca

mx2.nl

mx2.jp

mx2.memset.net

mx2.co

mx2.fr

mx2.se

mx2.uni5.net

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mx2.me

mx2.cc

mx2.dev

mx2.us

mx2.sp.gov.br

mx2.vip

mx2.it

mx2.dnsup.net

mx2.in

mx2.info

mx2.gouv.km

mx2.pl

mx2.cloudaccess.net

mx2.mil.lv

mx2.vg

mx2.com

mx2.io

mx2.life

mx2.email

mx2.bplaced.net

mx2.org

mx2.kinghost.net

mx2.eu

mx2.agency

mx2.gov.lk

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2xm.dk

m2x.com

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2mx.eu

2xm.com.br

xm2.net

2xm.com.pl

m2x.fr

2mx.it

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2mx.net

2mx.fr

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2xm.ru

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xm2.cl

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m2x.ru

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2mx.at

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2mx.info

2xm.pt

m2x.net

xm2.com

2mx.nl

m2x.de

x2m.cn

2xm.info

2mx.ro

2mx.com.br

2xm.com

m2x.it

x2m.ru

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DNS History

2 records (1 active, 1 former)

○A89.25.219.112016-09-21 → 2016-09-21 · 2 obs

● 2016-09-21 11:33:40
○ 2026-03-25 07:49:14

●CNAMEholding1.pl2026-03-25 → 2026-03-25 · 1 obs

● 2026-03-25 07:49:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pl	f-dns.pl, b-dns.pl, a-dns.pl, d-dns.pl...	-
holdingone.pl	kellen.ns.cloudflare.com, paislee.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.160

NS records: kellen.ns.cloudflare.com, paislee.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for holdingone.pl (unsigned zone)

⏱️ Timing

Total: 254ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`holding1.pl`

Analysis

IP Addresses

mx2.holdingone.pl maps to six IP numbers: 2606:4700:20::681a:22d, 2606:4700:20::681a:32d, 2606:4700:20::ac43:4b30, 104.26.2.45, 104.26.3.45 and 172.67.75.48.

Other host names such as www.landtrustalliance.org, ns1.euagenda.eu, atlascoffeeclub.com, www.trxs.cc and www.johanwaller.info share IPs with mx2.holdingone.pl.

Name Servers

Two name servers kellen.ns.cloudflare.com and paislee.ns.cloudflare.com handle the delegation for mx2.holdingone.pl.

mx2.holdingone.pl shares the same name server setup as other domains, for example settuklab.com, euromobil.pl, automiasto.eu, metrocar.com.pl and grupaexpress.eu.

mx2.holdingone.pl at least partially shares name servers with other domains, for example zipo99terpercaya.xyz, seisintsystems.net, sanam-alborz.co, mideaeg.com and isevaha.top.

These name servers are often used together with kenia.ns.cloudflare.com and arushi.ns.cloudflare.com.

Host names with six IP numbers:

kellen.ns.cloudflare.com points to 2606:4700:58::a29f:2ca0, 2803:f800:50::6ca2:c3a0, 2a06:98c1:50::ac40:23a0, 108.162.195.160, 162.159.44.160 and 172.64.35.160.

paislee.ns.cloudflare.com points to 2606:4700:50::a29f:26b7, 2803:f800:50::6ca2:c2b7, 2a06:98c1:50::ac40:22b7, 108.162.194.183, 162.159.38.183 and 172.64.34.183.

Mail Servers

Two mail servers handle mx2.holdingone.pl: d336849.a.ess.de.barracudanetworks.com and d336849.b.ess.de.barracudanetworks.com.

The mail server setup for mx2.holdingone.pl is the same as that of other domains, for instance holding1.pl.

Host names with three IP numbers:

d336849.a.ess.de.barracudanetworks.com points to 18.185.115.250, 18.185.115.251 and 18.185.115.252.

d336849.b.ess.de.barracudanetworks.com points to 18.185.115.250, 18.185.115.251 and 18.185.115.252.

Names pointing to 18.185.115.250 are d336849.a.ess.de.barracudanetworks.com and d336849.b.ess.de.barracudanetworks.com.

Names pointing to 18.185.115.251 are d336849.a.ess.de.barracudanetworks.com and d336849.b.ess.de.barracudanetworks.com.

Names pointing to 18.185.115.252 are d336849.a.ess.de.barracudanetworks.com and d336849.b.ess.de.barracudanetworks.com.

mx2.holdingone.pl - robtex.com